WO2021065583A1 - 金属帯急冷装置及び金属帯急冷方法並びに金属帯製品の製造方法 - Google Patents
金属帯急冷装置及び金属帯急冷方法並びに金属帯製品の製造方法 Download PDFInfo
- Publication number
- WO2021065583A1 WO2021065583A1 PCT/JP2020/035571 JP2020035571W WO2021065583A1 WO 2021065583 A1 WO2021065583 A1 WO 2021065583A1 JP 2020035571 W JP2020035571 W JP 2020035571W WO 2021065583 A1 WO2021065583 A1 WO 2021065583A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- metal band
- cooling
- cooling fluid
- metal strip
- quenching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/60—Aqueous agents
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/667—Quenching devices for spray quenching
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
- C21D11/005—Process control or regulation for heat treatments for cooling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/001—Heat treatment of ferrous alloys containing Ni
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/002—Heat treatment of ferrous alloys containing Cr
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
- C21D9/5735—Details
- C21D9/5737—Rolls; Drums; Roll arrangements
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/003—Apparatus
- C23C2/0038—Apparatus characterised by the pre-treatment chambers located immediately upstream of the bath or occurring locally before the dipping process
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
- C23C2/0224—Two or more thermal pretreatments
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
- C23C2/29—Cooling or quenching
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/40—Plates; Strips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
- B21B37/76—Cooling control on the run-out table
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
Definitions
- the present invention freely controls the temperature of a metal band after quenching in a continuous annealing facility that performs annealing while continuously transporting a metal band and a hot-dip galvanizing facility that performs plating while continuously transporting a metal band.
- the present invention relates to a quenching device and a quenching method that can be used, and a method for manufacturing a metal strip product.
- metal strips such as steel strips
- the metal strips are heated and then cooled to cause phase transformation, etc., and the materials are built in.
- Such cooling is performed in a continuous annealing facility that performs annealing while continuously transporting a metal band, or a hot dip galvanizing facility that performs plating while transporting a metal band.
- the water quenching method is known as one of the technologies having the fastest cooling rate of the steel strip.
- the heated steel strip is immersed in water, and at the same time, cooling water is sprayed onto the steel strip by a quench nozzle provided in the water to quench the steel strip.
- a quench nozzle provided in the water to quench the steel strip.
- the steel strip is rapidly cooled, it is possible to improve the mechanical properties of the steel strip by controlling the temperature of the steel strip after quenching. Specifically, it is possible to improve the ductility of the steel strip.
- various methods have been proposed as a method for quenching such a steel strip.
- Patent Document 1 slit nozzles are provided in multiple stages in the immersion water, and the slit nozzles are separated from each other in the direction of travel of the metal band so that the jet of cooling water that collides with the surface to be cooled of the metal band is generated by each nozzle.
- a method has been proposed in which the metal band is uniformly cooled in the width direction by flowing out from the gap between the nozzles to the rear of the nozzle.
- Patent Document 2 proposes a method of keeping the cooling stop temperature constant by performing rapid heating after rapid cooling in a vertical path in which the steel strip moves from the bottom to the top.
- Patent Document 3 proposes a method of controlling the cooling stop temperature by immersing in a dipping tank at 150 to 300 ° C.
- Patent Document 4 proposes a method in which a strip is passed through a strip with a predetermined length in a horizontal or gently inclined manner, and a jet of a cooling fluid is brought into contact with the lower surface of the strip to cool the strip from one side.
- Patent Document 5 proposes a method of adjusting the effective cooling width and / or the effective cooling length of the strip by blocking the ejection of the cooling liquid to the lower surface of the strip in the strip width direction and / or the line direction.
- Patent Document 6 proposes a method in which a water injection device and an air injection device are arranged at a position above the steel sheet to discharge the accumulated water on the upper surface of the steel sheet.
- Patent Document 7 proposes a method of arranging drainers on the inlet side upstream and the outlet side downstream of the cooling device to discharge the accumulated water on the upper surface of the steel sheet.
- Japanese Unexamined Patent Publication No. 59-153843 Japanese Patent No. 5991282 Japanese Unexamined Patent Publication No. 2008-19505 Japanese Unexamined Patent Publication No. 58-153733 Japanese Unexamined Patent Publication No. 60-194022 Japanese Unexamined Patent Publication No. 2001-335515 Japanese Unexamined Patent Publication No. 2012-51013
- Patent Document 1 has a problem that the temperature of the steel strip after quenching becomes the same as the water temperature, and the cooling stop temperature cannot be controlled.
- the method described in Patent Document 2 has a problem that water leakage occurs from the roll below the cooling device due to the influence of gravity, and the cooling start position and the cooling stop temperature cannot be controlled.
- the method described in Patent Document 3 employs a configuration in which the cooling stop temperature is controlled by using an ionic liquid, but there is a problem that this ionic liquid is very expensive as compared with water. There is. Therefore, it is desired to establish a technique capable of controlling the cooling stop temperature without using such a specific liquid.
- Patent Document 4 or 5 has a problem that stagnant water is generated on the inlet side upstream and the exit side downstream of the cooling device, and the cooling start position and the cooling stop temperature cannot be controlled. Further, since only the lower surface is cooled, there is a problem that a temperature difference occurs between the upper surface and the lower surface. Further, in the method described in Patent Document 6 or 7, it is necessary to inject high-pressure water in order to discharge the accumulated water, and the temperature of the steel strip is cooled to the water temperature by the drainage water, so that the cooling stop temperature is set. There is a problem that it cannot be controlled.
- the present invention has been made to solve such a problem. That is, in a continuous annealing facility that performs annealing while continuously transporting a metal strip (for example, a steel strip) or a hot-dip galvanizing facility that performs plating while continuously transporting a metal strip, the temperature of the metal strip after quenching. It is an object of the present invention to provide a quenching device and a quenching method capable of freely controlling the above-mentioned, and a method for manufacturing a metal strip product.
- a continuous annealing facility that performs annealing while continuously transporting a metal strip
- a hot-dip galvanizing facility that performs plating while continuously transporting a metal strip
- the temperature of the metal band after quenching becomes the same as the water temperature, so it is necessary to cool in the atmosphere.
- the rapid cooling of the metal band it is not always necessary to immerse the metal band in water, and if a sufficient amount of water is jetted from the nozzle with water or the like, a cooling capacity equivalent to that of jetting in water can be obtained.
- a cooling capacity equivalent to that of jetting in water can be obtained.
- the vertical pass that moves from the top to the bottom and the vertical pass that moves from the bottom to the top even if the water is drained below the cooling device, water leaks below the cooling device due to gravity, so it moves horizontally. Must be done with a pass.
- a quenching device that cools a metal band while transporting it in the horizontal direction.
- a cooling fluid injection device having one set of nozzles for injecting cooling fluid from both sides of the metal band or a plurality of sets of nozzles arranged in the horizontal direction, and a cooling fluid injection device having a plurality of sets of nozzles arranged in the horizontal direction.
- a cooling fluid discharge roll that discharges the stagnant fluid on the metal band on which the cooling fluid is injected, and a cooling fluid discharge roll.
- a metal strip quencher comprising a movable masking that controls the distance from the cooling start position to the cooling fluid discharge roll.
- the distance from the cooling start position of the metal band to the cooling fluid discharge roll is set based on the transport speed of the metal band, the cooling start temperature, the target cooling stop temperature, and the cooling rate of the metal band.
- the metal band quenching method according to the above [6] wherein the distance b (mm) from the cooling start position of the metal band to the cooling fluid discharge roll is represented by the following formula as / s).
- the distance from the cooling start position of the metal band to the cooling fluid discharge roll is based on the transport speed of the metal band, the cooling start temperature, the target cooling stop temperature, the cooling conditions, and the thickness of the metal band.
- the transport speed of the metal band is v (mm / s)
- the cooling start temperature is T 1 (° C)
- the target cooling stop temperature is T 2 (° C)
- the distance b (mm) from the cooling start position of the metal band to the cooling fluid discharge roll is expressed by the following formula using mm / s) and the thickness t (mm) of the metal band.
- Metal band quenching method. b (T 1- T 2 ) vt / ⁇ [10]
- metal strip product according to the above [10], wherein the metal strip product is any one of a high-strength cold-rolled steel strip, a hot-dip galvanized steel strip, an electric zinc-plated steel strip, and an alloyed hot-dip galvanized steel strip. Manufacturing method.
- the temperature of the metal band after quenching can be freely adjusted. Can be controlled to.
- FIG. 1 is a diagram showing a quenching device according to the present invention.
- FIG. 2 is a graph showing the result (cooling stop temperature) of the example of the present invention.
- FIG. 3 is a graph showing the result (cooling stop temperature) of Comparative Example 1.
- FIG. 4 is a graph showing the result (cooling stop temperature) of Comparative Example 2.
- FIG. 5 is a graph showing the result (cooling stop temperature) of Comparative Example 3.
- FIG. 6 is a graph showing the result (cooling stop temperature) of Comparative Example 4.
- FIG. 1 is a diagram showing a metal band quenching device 11 according to the present invention.
- the metal band quenching device 11 can be applied to a cooling facility provided on the outlet side of the soaking zone of a continuous annealing furnace and a cooling facility provided on the outlet side of a hot-dip galvanizing bath of a hot-dip galvanizing facility.
- the metal band quenching device 11 is a refrigerant (cooling fluid) 211 such as water or alcohol from the upper surface side of the metal band 1 continuously conveyed in the horizontal direction (hereinafter, also referred to as a longitudinal direction) to the metal band 1.
- the upper cooling fluid ejection nozzle 21 (cooling fluid injection device) is provided.
- the metal band quenching device 11 ejects a lower cooling fluid for rapid cooling by injecting a refrigerant (cooling fluid) 222 such as water or alcohol into the metal band 1 from the lower surface side of the metal band 1 which is continuously conveyed in the horizontal direction.
- a nozzle 22 (cooling fluid injection device) is provided.
- the nozzle 21 and the nozzle 22 are provided with one set or a plurality of sets arranged in the horizontal direction.
- the metal band quenching device 11 is provided between the upper cooling fluid ejection nozzle 21 and the metal band transport line through which the metal band 1 passes, and includes an upper movable masking 31 (movable masking) that moves in the horizontal direction.
- the upper movable masking 31 adjusts the cooling start position of the metal band 1 by the cooling fluid (for example, the jet collision position of the inlet upper gas ejection nozzle 41 and the inlet lower gas ejection nozzle 42 with the metal band 1). , The distance from the cooling start position to the upper cooling fluid discharge roll described later is controlled.
- a lower movable masking 32 (movable masking) is provided between the lower cooling fluid ejection nozzle 22 and the metal band transport line through which the metal band 1 passes, and moves in the horizontal direction.
- the lower movable masking 32 adjusts the cooling start position of the metal band 1 by the cooling fluid to control the distance from the cooling start position to the lower cooling fluid discharge roll described later.
- the metal band quenching device 11 is provided on the outlet side of the upper cooling fluid ejection nozzle 21, and discharges the stagnant fluid such as stagnant water and stagnant alcohol on the upper surface of the metal band 1 into which the cooling fluid is jetted.
- a roll 51 (cooling fluid discharge roll) is provided.
- the metal band quenching device 11 is provided on the outlet side of the lower cooling fluid ejection nozzle 22, and lower cooling discharges the stagnant fluid such as stagnant water and stagnant alcohol on the lower surface of the metal band 1 into which the cooling fluid is jetted.
- a fluid discharge roll 52 (cooling fluid discharge roll) is provided.
- the metal band quenching device 11 is provided on the upper movable masking 31 and is an entry-side upper gas ejection nozzle that injects a gas 411 such as air or nitrogen into the metal band 1 from the entry-side upper surface side of the metal band 1.
- a gas 411 such as air or nitrogen
- 41 gas ejection nozzle
- the upper gas ejection nozzle 41 on the entry side prevents the retained fluid on the upper surface of the metal band 1 from flowing back to the position of the upper movable masking 31.
- the metal band quenching device 11 is provided on the lower movable masking 32 and injects a gas 422 such as air or nitrogen into the metal band 1 from the lower surface side of the entry side of the metal band 1 (gas ejection nozzle 42).
- the metal band quenching device 11 may include a discharge side upper gas ejection nozzle 61 (gas ejection nozzle) that injects a gas 611 such as air or nitrogen into the metal band 1 from the outlet side upper surface side of the metal band 1. ..
- the outlet upper gas ejection nozzle 61 discharges the stagnant fluid leaked from between the upper surface of the metal band 1 and the upper cooling fluid discharge roll 51.
- the metal band quenching device 11 may include a lower discharge side gas ejection nozzle 62 (gas ejection nozzle) that injects a gas 622 such as air or nitrogen into the metal band 1 from the lower surface side of the outlet side of the metal band 1. ..
- the outlet side lower gas ejection nozzle 62 discharges the stagnant fluid leaked from between the lower surface of the metal band 1 and the lower cooling fluid discharge roll 52.
- the injection directions of the upper cooling fluid ejection nozzle 21 and the lower cooling fluid ejection nozzle 22 are oblique toward the traveling direction of the metal band 1 as shown in FIG. That is, it is preferable that the horizontal component of the injection direction is obliquely injected from the nozzle so that the metal band 1 is in the traveling direction. By doing so, an accompanying flow with the metal band 1 is generated in the jet, the adhesion of the cooling fluid to the metal band 1 is improved, the turbulence of the jet is prevented, and the cooling length can be easily kept constant.
- each upper cooling fluid ejection nozzle 21 is directed in the same direction. It is preferable to incline by the same angle. Further, from the viewpoint of making the contact position of water on the lower surface of the metal band 1 as uniform as possible and eliminating the cooling unevenness in the longitudinal direction, when a plurality of sets of nozzles are provided, each lower cooling fluid ejection nozzle 22 is used. It is preferable to tilt in the same direction and by the same angle.
- the inclination angle of the upper cooling fluid ejection nozzle 21 is an angle 21a which is a sharp angle among the angles formed by the axial direction (the ejection direction of the cooling fluid) of the upper cooling fluid ejection nozzle 21 and the metal band 1.
- the cooling fluid is discharged from the nozzle with a certain spread, the direction of the central axis of the cooling fluid discharged from the nozzle can be adopted as the ejection direction of the cooling fluid.
- the angle 21a can be set according to the amount of cooling fluid ejected from the upper cooling fluid ejection nozzle 21, the distance between the opening of the upper cooling fluid ejection nozzle 21 and the upper surface of the metal band 1, and the like.
- the inclination angle 22a of the lower cooling fluid ejection nozzle 22 can be set.
- Preferable examples of the angle 21a and the angle 22a include 10 ° or more. Moreover, 60 ° or less is mentioned as a preferable example of this. If the angle 21a or the angle 22a is 10 ° or more, it is not necessary to reduce the distance between the upper water ejection nozzle 21 or the lower water ejection nozzle 22 and the metal band 1, and the upper movable masking 31 and the lower movable masking 32 are installed. It becomes easy to secure space. Further, when the angle 21a or the angle 22a is 60 ° or less, the stagnant fluid easily flows in the transport direction of the metal band. Further, it is more preferable that the angle 21a and the angle 22a are 20 ° or more.
- the angle 21a and the angle 22a are 45 ° or less.
- the angle 21a and the angle 22a are 45 ° or less.
- the upper and lower cooling fluids land on the water due to the influence of gravity.
- the position may be different. Therefore, considering the influence of gravity, it is preferable to make the angle 22a larger than the angle 21a (angle 21a ⁇ angle 22a).
- the movable masking (upper movable masking 31 and lower movable masking 32) may be of any material and thickness as long as it is not deformed by the pressure of the cooling fluid, but it is preferably as thin as possible in consideration of the nozzle installation space. Further, since the movable masking is used for the purpose of preventing the cooling fluid from colliding with the metal strip 1 such as a steel strip, it must be wider than the width of the metal strip 1. Further, the movable masking needs to be moved in the longitudinal direction (horizontal direction) in order to control the cooling start position (the jet collision position of the inlet upper gas ejection nozzle 41 and the inlet lower gas ejection nozzle 42 with the metal band 1). is there. Since this movable masking is provided in the metal band quenching device 11, the cooling stop temperature can be controlled at low cost without using a special ionic liquid or the like.
- the injection direction of the gas ejection nozzles (the inlet upper gas ejection nozzle 41 and the inlet lower gas ejection nozzle 42) provided in the movable masking shall be oblique toward the traveling direction of the metal band 1 as shown in FIG. Is preferable. That is, it is preferable that the horizontal component of the injection direction is obliquely injected from the nozzle so that the metal band 1 is in the traveling direction.
- the inclination angle 41a of the inlet upper gas ejection nozzle 41 may be the same as or substantially the same as the angle 21a
- the inclination angle 42a of the inlet lower gas ejection nozzle 42 may be the same as or substantially the same as the angle 22a. preferable. By doing so, it becomes easy to prevent the stagnant fluid from flowing back to the positions of the upper movable masking 31 and the lower movable masking 32.
- the cooling fluid discharge roll discharges the stagnant fluid from above the metal band 1 by sandwiching the metal band 1 between the upper cooling fluid discharge roll 51 and the lower cooling fluid discharge roll 52.
- the material of the cooling fluid discharge roll (upper cooling fluid discharge roll 51 and lower cooling fluid discharge roll 52) is preferably rubber, and particularly preferably urethane rubber.
- the roll diameter is preferably 100 mm or more. Further, the roll diameter is preferably 400 mm or less.
- the nip pressure is preferably 5 kg / cm or more. The nip pressure is preferably 20 kg / cm or less.
- the cooling fluid discharge roll may be a non-driving roll, but a driving roll is preferable.
- the injection directions of the gas ejection nozzles are opposite to the traveling direction of the metal band 1 as shown in FIG. It is preferable to make it diagonal toward. That is, it is preferable that the horizontal component of the injection direction is obliquely injected from the nozzle so that the horizontal component of the injection direction is opposite to the traveling direction of the metal band 1. By doing so, it becomes easy to discharge the stagnant fluid such as the stagnant water leaked from the cooling fluid discharge roll.
- the inclination angle 61a of the upper gas ejection nozzle 61 on the exit side (the angle formed by the injection direction of the gas ejected by the nozzle 61 and the metal band 1) and the inclination angle 62a of the lower gas ejection nozzle 62 on the outlet side (the gas ejected by the nozzle 62).
- 5 ° or more can be mentioned as a preferable example of the injection direction of the metal band 1 and the angle formed by the metal band 1.
- 80 ° or less is mentioned as a preferable example of this.
- the angle 61a or the angle 62a is 5 ° or more, it is possible to prevent the injection direction from becoming nearly parallel to the traveling direction of the metal band 1 and further improve the discharge capacity.
- the angle 61a or the angle 62a is 80 ° or less, it is possible to prevent the injection direction from becoming close to perpendicular to the traveling direction of the metal band 1 and further improve the discharge capacity. Further, it is more preferable that the angle 61a and the angle 62a are 20 ° or more. Further, it is more preferable that the angle 61a and the angle 62a are 45 ° or less.
- the temperature of the injected air or gas such as nitrogen is preferably 10 ° C or higher. Further, the temperature of the injected air or gas such as nitrogen is preferably 30 ° C. or lower. Further, the injection pressure is preferably 0.2 MPa or more. Further, the injection pressure is preferably 1.0 MPa or less.
- the cooling length b (mm) which is the distance from the cooling start position to the cooling stop position (the contact position between the upper cooling fluid discharge roll 51 and the lower cooling fluid discharge roll 52 with respect to the metal band 1), is the transport speed v (mm / s). , Set based on the thickness t (mm) of the metal band 1, the cooling start temperature T 1 (° C), the target cooling stop temperature T 2 (° C), and the cooling rate CV (° C / s) of the metal band 1. Is preferable.
- the cooling start temperature T 1 (° C.) is the temperature of the metal band 1 at the cooling start position
- the cooling stop temperature T 2 (° C.) is the temperature of the metal band 1 at the cooling stop position
- the cooling rate CV is a constant ⁇ (° C. mm / s) determined according to the cooling conditions (nozzle shape, type of cooling fluid to be injected (here, water 211 and water 222), temperature, injection amount, etc.).
- the thickness t of the metal band 1 can be expressed by the following equation (3).
- the cooling rate CV (° C./s) and ⁇ (° C. mm / s) may be obtained in advance by experiments, numerical analysis, or the like, and created in a database or calculation formula.
- the above embodiment can be applied to the production of metal strip products (metal strips shipped as products), and can be applied to the manufacture of steel strips such as high-strength cold-rolled steel strips and molten zinc-plated steel strips. Is particularly preferable. More specifically, it is preferably applied to the production of steel strips having a tensile strength of 580 MPa or more. The upper limit of the tensile strength is not particularly limited, but as an example, it may be 1600 MPa or less.
- C is 0.04% or more and 0.25% or less
- Si is 0.01% or more and 2.50% or less
- P is 0.001% or more and 0.090% or less
- S is 0.0001% or more and 0.0050% or less
- Al is 0.005% or more and 0.065% or less, and if necessary, at least one of Cr, Mo, Nb, V, Ni, Cu, and Ti contains 0.5% or less, and the balance is 0.5% or less.
- B and Sb may each contain 0.01% or less, if necessary.
- the present invention can be applied to cooling the entire metal strip other than the steel strip, and a refrigerant other than water can be used. It can also be applied to the quenching used.
- the quenching device according to the embodiment of the present invention shown in FIG. 1 was used.
- the angle 21a was 30 °
- the angle 22a was 40 °
- the angle 41a was 30 °
- the angle 42a was 40 °
- the angle 61a was 30 °
- the angle 62a was 30 °.
- the temperature of the air as the gas to be injected was 20 ° C., and the injection pressure was 0.6 MPa.
- the roll diameter was 200 mm and the nip pressure was 10 kg / cm.
- a high-strength hot-dip galvanized steel strip having a thickness t of 1.0 mm and a width of 1000 mm and a tensile strength of 1470 MPa class was produced.
- the transport speed v was set to 500 to 3000 mm / s
- the cooling start temperature T 1 was set to 400 ° C
- the target cooling stop temperature T 2 was set to 100 ° C.
- the water temperature was 30 ° C.
- the cooling rate ⁇ / t was set to 1500 / t (° C./s) based on the preliminary measurement and the above equation (5).
- Comparative Example 1 the cooling device shown in Patent Document 1 was used, and the other conditions were the same as in the example of the present invention, and the above-mentioned high-strength hot-dip galvanized steel strip was manufactured. Further, as Comparative Example 2, the cooling device shown in Patent Document 2 was used, and other conditions were the same as in the example of the present invention, and the above-mentioned high-strength hot-dip galvanized steel strip was manufactured. Further, as Comparative Example 3, the cooling device shown in Patent Document 4 was used, and other conditions were the same as in the example of the present invention, and the above-mentioned high-strength hot-dip galvanized steel strip was manufactured.
- Comparative Example 4 the cooling device shown in Patent Document 6 was used, and other conditions were the same as in the example of the present invention, and the above-mentioned high-strength hot-dip galvanized steel strip was manufactured. Then, in each case (Examples of the present invention, Comparative Examples 1 to 4), the relationship between the transport speed v (mm / s) and the cooling stop temperature T 2 (° C.) was investigated.
- the results of the examples of the present invention are shown in FIG. 2, the results of Comparative Example 1 are shown in FIG. 3, the results of Comparative Example 2 are shown in FIG. 4, the results of Comparative Example 3 are shown in FIG. 5, and the results of Comparative Example 4 are shown in FIG.
- the cooling stop temperature T 2 (° C.) is almost the same as the water temperature (30 ° C.) regardless of the transport speed v (mm / s). the same as it was not possible to control the cooling stop temperature T 2 of the target.
- the steel strip was immersed in the water tank when the steel strip was cooled. Therefore, the temperature of the steel strip after quenching became the same as the water temperature, and the cooling stop temperature T 2 could not be controlled.
- Comparative Example 4 unlike the example of the present invention, a method was adopted in which a water injection device and an air injection device were arranged at a position above the steel strip, and the accumulated water on the upper surface of the steel strip was discharged by draining water. Therefore, it is necessary to inject high pressure water in order to discharge the accumulated water, it causes the temperature of the steel strip is cooled to a temperature by draining water, it is not possible to control the cooling stop temperature T 2.
- the cooling stop temperature T 2 greatly changes depending on the transport speed v (mm / s) and cannot be controlled. It was. Specifically, in Comparative Example 2, unlike the example of the present invention, a method of keeping the cooling stop temperature constant by performing rapid heating after rapid cooling in a vertical path in which the steel strip moves from the bottom to the top. It was adopted. Therefore, water leakage from the cooling device below the roll by the effect of gravity occurs, it is impossible to control the cooling start position and the cooling stop temperature T 2. Further, in Comparative Example 3, unlike the example of the present invention, an attempt was made to discharge the retained water using only the gas nozzle without using the cooling fluid discharge roll. Therefore, not completely control the cooling start position, also failed to control the cooling stop temperature T 2 without being completely discharged the accumulated water.
- the cooling stop temperature T 2 (° C.) is entirely controlled within the range of 100 ⁇ 5 ° C. regardless of the steel strip manufacturing condition of the transport speed v (mm / s). It was possible.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Coating With Molten Metal (AREA)
Abstract
Description
[1]金属帯を水平方向に搬送しながら冷却する急冷装置であって、
前記金属帯の両面側から前記金属帯に冷却流体を噴射する1組または水平方向に配列した複数組のノズルを備えた冷却流体噴射装置と、
前記冷却流体が噴射された前記金属帯上の滞留流体を排出する冷却流体排出ロールと、
前記ノズルと前記金属帯が通過する金属帯搬送ラインとの間かつ前記金属帯搬送ラインの両面側に設けられ、水平方向に移動することで前記冷却流体による前記金属帯の冷却開始位置を調整して、該冷却開始位置から前記冷却流体排出ロールまでの距離を制御する可動マスキングと
を備えている金属帯急冷装置。
[2]前記冷却流体排出ロールの出側に気体噴出ノズルを備えている前記[1]に記載の金属帯急冷装置。
[3]前記可動マスキングは気体噴出ノズルを備えている前記[1]または[2]に記載の金属帯急冷装置。
[4]前記冷却流体を噴射する前記ノズルの軸線方向と前記金属帯のなす角度が10°以上60°以下である前記[1]~[3]のいずれかに記載の金属帯急冷装置。
[5]連続的に水平方向に搬送する金属帯の表面に複数のノズルから冷却流体を噴射することで冷却する急冷方法であって、冷却流体排出ロールによって前記金属帯上の滞留流体を排出しつつ、可動マスキングによって前記冷却流体による前記金属帯の冷却開始位置を調整して、該冷却開始位置から前記冷却流体排出ロールまでの距離を制御する金属帯急冷方法。
[6]前記金属帯の冷却開始位置から前記冷却流体排出ロールまでの距離を、前記金属帯の搬送速度、冷却開始温度、目標とする冷却停止温度、前記金属帯の冷却速度に基づいて設定する前記[5]に記載の金属帯急冷方法。
[7]前記金属帯の搬送速度をv(mm/s)、冷却開始温度をT1(℃)、目標とする冷却停止温度をT2(℃)、前記金属帯の冷却速度をCV(℃/s)として、前記金属帯の冷却開始位置から前記冷却流体排出ロールまでの距離b(mm)を下式で表す前記[6]に記載の金属帯急冷方法。
b=(T1-T2)v/CV
[8]前記金属帯の冷却開始位置から前記冷却流体排出ロールまでの距離を、前記金属帯の搬送速度、冷却開始温度、目標とする冷却停止温度、冷却条件、前記金属帯の厚みに基づいて設定する前記[5]に記載の金属帯急冷方法。
[9]前記金属帯の搬送速度をv(mm/s)、冷却開始温度をT1(℃)、目標とする冷却停止温度をT2(℃)とし、冷却条件により定まる定数α(℃・mm/s)と、前記金属帯の厚みt(mm)を用いて、前記金属帯の冷却開始位置から前記冷却流体排出ロールまでの距離b(mm)を下式で表す前記[8]に記載の金属帯急冷方法。
b=(T1-T2)vt/α
[10]金属帯製品を製造する際に、前記[5]~[9]のいずれかに記載の急冷方法を用いて急冷を行う金属帯製品の製造方法。
[11]前記金属帯製品は、高強度冷延鋼帯、溶融亜鉛鍍金鋼帯、電気亜鉛鍍金鋼帯、合金化溶融亜鉛鍍金鋼帯のいずれかである前記[10]に記載の金属帯製品の製造方法。
この可動マスキングが金属帯急冷装置11には設けられているため、特殊なイオン性液体等を用いずに、低コストで冷却停止温度を制御することができる。
冷却流体排出ロール(上部冷却流体排出ロール51と下部冷却流体排出ロール52)の材質はゴムであることが好ましく、特にウレタンゴムであることが好ましい。また、ロール径は100mm以上であることが好ましい。また、ロール径は400mm以下であることが好ましい。また、ニップ圧は5kg/cm以上であることが好ましい。また、ニップ圧は、20kg/cm以下であることが好ましい。冷却流体排出ロールは非駆動ロールとすることもできるが、駆動ロールである方が好ましい。
b=(T1-T2)v/CV ・・・(2)
なお、冷却速度CVは、冷却条件(ノズル形状、噴射される冷却流体の種類(ここでは、水211と水222)・温度、噴射量など)に応じて定まる定数α(℃・mm/s)と、金属帯1の厚みtとを用いて、下記(3)式で表すことができる。
例えば、厚みt=1~2mmの金属帯1では、下記(4)式で表され、中間値をとれば、下記(5)式で表される。
CV=1500/t(℃/s) ・・・(5)
すなわち、この場合は、αは下記(6)式または(7)式ということになる。
α=1500(℃・mm/s) ・・・(7)
このことから、上記(2)式は下記(8)式で表すことができる。
なお、冷却速度CV(℃/s)やα(℃・mm/s)については、事前に、実験や数値解析等によって求めておき、データベース化や計算式化しておけばよい。
より具体的には、引張強度が580MPa以上である鋼帯の製造に適用することが好ましい。引張強度の上限は特に制限されないが、一例として1600MPa以下であればよい。
本発明例として、図1の本発明の実施形態に係る急冷装置を用いた。
このとき、角度21aは30°、角度22aは40°、角度41aは30°、角度42aは40°、角度61aは30°、角度62aは30°とした。また、噴射する気体として空気の温度は20℃、噴射圧力は0.6MPaとした。またロール径は200mm、ニップ圧は10kg/cmとした。
上記の装置を用いて、厚みtが1.0mm、幅が1000mmである引張強さ1470MPa級の高強度溶融亜鉛鍍金鋼帯を製造した。搬送速度vを500~3000mm/s、冷却開始温度T1を400℃、目標とする冷却停止温度T2を100℃とした。水温は30℃で、冷却速度α/tについては、事前測定と上記(5)式に基づいて1500/t(℃/s)と設定した。
なお、冷却開始位置から冷却停止位置までの冷却長b(mm)は、上記(8)式に基づいてb=100~600mmで制御した。
また、比較例2として、特許文献2に示した冷却装置を用い、その他の条件は、本発明例と同じにして、上記の高強度溶融亜鉛鍍金鋼帯を製造した。
また、比較例3として、特許文献4に示した冷却装置を用い、その他の条件は、本発明例と同じにして、上記の高強度溶融亜鉛鍍金鋼帯を製造した。
また、比較例4として、特許文献6に示した冷却装置を用い、その他の条件は、本発明例と同じにして、上記の高強度溶融亜鉛鍍金鋼帯を製造した。
そして、それぞれの場合(本発明例、比較例1~4)について、搬送速度v(mm/s)と冷却停止温度T2(℃)との関係を調査した。
本発明例の結果を図2に示し、比較例1の結果を図3、比較例2の結果を図4、比較例3の結果を図5、比較例4の結果を図6に示す。
具体的には、比較例1では、本発明例とは異なり、鋼帯の冷却時、鋼帯を水槽内に浸漬していた。そのため、急冷後の鋼帯の温度が水温と同一となり、冷却停止温度T2を制御することができなかった。
また、比較例4では、本発明例とは異なり、鋼帯の上方の位置に水噴射装置と空気噴射装置を配設し、水切り水により鋼帯上面の滞留水を排出する手法を採用した。そのため、滞留水を排出するために高圧の水を噴射する必要があり、水切り水によって鋼帯の温度が水温まで冷却されてしまい、冷却停止温度T2を制御することができなかった。
具体的には、比較例2では、本発明例とは異なり、鋼帯が下方から上方へ移動する縦パス中で、急速冷却後に急速加熱を行うことで、冷却停止温度を一定に保持する手法を採用した。そのため、重力の影響によって冷却装置下方のロールから漏水が発生し、冷却開始位置や冷却停止温度T2を制御することができなかった。
また、比較例3では、本発明例とは異なり、冷却流体排出ロールを使用せずに気体ノズルのみを用いて滞留水を排出しようとした。そのため、冷却開始位置を制御しきれず、また、滞留水を排出しきれずに冷却停止温度T2を制御することができなかった。
11 金属帯急冷装置
21 上部冷却流体噴出ノズル(冷却流体噴射装置)
211 上部冷却流体噴出ノズルから噴射された冷却流体
22 下部冷却流体噴出ノズル(冷却流体噴射装置)
222 下部冷却流体噴出ノズルから噴射された冷却流体
21a 上部冷却流体噴出ノズルの軸線方向(冷却流体の噴出方向)と金属帯とのなす角度のうち、鋭角となる角度
22a 下部冷却流体噴出ノズルの軸線方向(冷却流体の噴出方向)と金属帯とのなす角度のうち、鋭角となる角度
31 上部可動マスキング(可動マスキング)
32 下部可動マスキング(可動マスキング)
41 入側上部気体噴出ノズル(気体噴出ノズル)
411 入側上部気体噴出ノズルから噴射された気体
42 入側下部気体噴出ノズル(気体噴出ノズル)
422 入側下部気体噴出ノズルから噴射された気体
41a 入側上部気体噴出ノズルの軸線方向(気体の噴出方向)と金属帯とのなす角度のうち、鋭角となる角度
42a 入側下部空気噴出ノズルの軸線方向(気体の噴出方向)と金属帯とのなす角度のうち、鋭角となる角度
51 上部冷却流体排出ロール(冷却流体排出ロール)
52 下部冷却流体排出ロール(冷却流体排出ロール)
61 出側上部気体噴出ノズル(気体噴出ノズル)
611 出側上部気体噴出ノズルから噴射された気体
62 出側下部気体噴出ノズル(気体噴出ノズル)
622 出側下部気体噴出ノズルから噴射された気体
61a 出側上部気体噴出ノズルの軸線方向(気体の噴出方向)と金属帯とのなす角度のうち、鋭角となる角度
62a 出側下部気体噴出ノズルの軸線方向(気体の噴出方向)と金属帯とのなす角度のうち、鋭角となる角度
b 冷却長(金属帯の冷却開始位置から冷却流体排出ロールまでの距離)
Claims (11)
- 金属帯を水平方向に搬送しながら冷却する急冷装置であって、
前記金属帯の両面側から前記金属帯に冷却流体を噴射する1組または水平方向に配列した複数組のノズルを備えた冷却流体噴射装置と、
前記冷却流体が噴射された前記金属帯上の滞留流体を排出する冷却流体排出ロールと、
前記ノズルと前記金属帯が通過する金属帯搬送ラインとの間かつ前記金属帯搬送ラインの両面側に設けられ、水平方向に移動することで前記冷却流体による前記金属帯の冷却開始位置を調整して、該冷却開始位置から前記冷却流体排出ロールまでの距離を制御する可動マスキングと
を備えている金属帯急冷装置。 - 前記冷却流体排出ロールの出側に気体噴出ノズルを備えている請求項1に記載の金属帯急冷装置。
- 前記可動マスキングは気体噴出ノズルを備えている請求項1または2に記載の金属帯急冷装置。
- 前記冷却流体を噴射する前記ノズルの軸線方向と前記金属帯のなす角度が10°以上60°以下である請求項1~3のいずれかに記載の金属帯急冷装置。
- 連続的に水平方向に搬送する金属帯の表面に複数のノズルから冷却流体を噴射することで冷却する急冷方法であって、冷却流体排出ロールによって前記金属帯上の滞留流体を排出しつつ、水平方向に移動可能な可動マスキングによって前記冷却流体による前記金属帯の冷却開始位置を調整して、該冷却開始位置から前記冷却流体排出ロールまでの距離を制御する金属帯急冷方法。
- 前記金属帯の冷却開始位置から前記冷却流体排出ロールまでの距離を、前記金属帯の搬送速度、冷却開始温度、目標とする冷却停止温度、前記金属帯の冷却速度に基づいて設定する請求項5に記載の金属帯急冷方法。
- 前記金属帯の搬送速度をv(mm/s)、冷却開始温度をT1(℃)、目標とする冷却停止温度をT2(℃)、前記金属帯の冷却速度をCV(℃/s)として、前記金属帯の冷却開始位置から前記冷却流体排出ロールまでの距離b(mm)を下式で表す請求項6に記載の金属帯急冷方法。
b=(T1-T2)v/CV - 前記金属帯の冷却開始位置から前記冷却流体排出ロールまでの距離を、前記金属帯の搬送速度、冷却開始温度、目標とする冷却停止温度、冷却条件、前記金属帯の厚みに基づいて設定する請求項5に記載の金属帯急冷方法。
- 前記金属帯の搬送速度をv(mm/s)、冷却開始温度をT1(℃)、目標とする冷却停止温度をT2(℃)とし、冷却条件により定まる定数α(℃・mm/s)と、前記金属帯の厚みt(mm)を用いて、前記金属帯の冷却開始位置から前記冷却流体排出ロールまでの距離b(mm)を下式で表す請求項8に記載の金属帯急冷方法。
b=(T1-T2)vt/α - 金属帯製品を製造する際に、請求項5~9のいずれかに記載の急冷方法を用いて急冷を行う金属帯製品の製造方法。
- 前記金属帯製品は、高強度冷延鋼帯、溶融亜鉛鍍金鋼帯、電気亜鉛鍍金鋼帯、合金化溶融亜鉛鍍金鋼帯のいずれかである請求項10に記載の金属帯製品の製造方法。
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202080067935.5A CN114450424B (zh) | 2019-09-30 | 2020-09-18 | 金属带急冷装置、金属带急冷方法以及金属带产品的制造方法 |
| US17/765,236 US12365956B2 (en) | 2019-09-30 | 2020-09-18 | Metal-strip rapid cooling apparatus, metal-strip rapid cooling method, and method of producing metal strip product |
| EP20871593.8A EP4012057A4 (en) | 2019-09-30 | 2020-09-18 | METAL STRIP QUENCHING DEVICE, METAL STRIP QUENCHING METHOD AND METAL STRIP MANUFACTURING METHOD |
| KR1020227010186A KR102698313B1 (ko) | 2019-09-30 | 2020-09-18 | 금속대 급냉 장치 및 금속대 급냉 방법 그리고 금속대 제품의 제조 방법 |
| MX2022003705A MX2022003705A (es) | 2019-09-30 | 2020-09-18 | Aparato de enfriamiento rapido de tiras de metal, metodo de enfriamiento rapido de tiras de metal y metodo para producir productos de tiras de metal. |
| JP2021509932A JP7103511B2 (ja) | 2019-09-30 | 2020-09-18 | 金属帯急冷装置及び金属帯急冷方法並びに金属帯製品の製造方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-178175 | 2019-09-30 | ||
| JP2019178175 | 2019-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021065583A1 true WO2021065583A1 (ja) | 2021-04-08 |
Family
ID=75337297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2020/035571 Ceased WO2021065583A1 (ja) | 2019-09-30 | 2020-09-18 | 金属帯急冷装置及び金属帯急冷方法並びに金属帯製品の製造方法 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US12365956B2 (ja) |
| EP (1) | EP4012057A4 (ja) |
| JP (1) | JP7103511B2 (ja) |
| KR (1) | KR102698313B1 (ja) |
| CN (1) | CN114450424B (ja) |
| MX (1) | MX2022003705A (ja) |
| WO (1) | WO2021065583A1 (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118080563B (zh) * | 2024-04-23 | 2024-09-03 | 福建省闽侯县建腾工艺品有限公司 | 一种薄金属板精压装置 |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58153733A (ja) | 1982-03-09 | 1983-09-12 | Nippon Kokan Kk <Nkk> | 連続熱処理工程におけるストリツプの冷却方法及び装置 |
| JPS59153843A (ja) | 1983-02-18 | 1984-09-01 | Nippon Kokan Kk <Nkk> | ストリップの冷却装置 |
| JPS60194022A (ja) | 1984-03-16 | 1985-10-02 | Nippon Kokan Kk <Nkk> | 連続熱処理工程におけるストリツプの冷却方法及び装置 |
| JPS6468427A (en) * | 1987-09-09 | 1989-03-14 | Kawasaki Steel Co | Method for uniformly cooling thick steel plate |
| JP2001353515A (ja) | 2000-06-14 | 2001-12-25 | Nkk Corp | 高温鋼板の水切り方法及びその装置 |
| JP2008019505A (ja) | 2006-06-13 | 2008-01-31 | Jfe Steel Kk | 鋼帯の冷却方法および冷却設備 |
| JP2009144189A (ja) * | 2007-12-12 | 2009-07-02 | Jfe Steel Corp | 鋼板の冷却方法および装置 |
| JP2012051013A (ja) | 2010-09-02 | 2012-03-15 | Jfe Steel Corp | 熱鋼板の水切り装置および水切り方法 |
| JP5991282B2 (ja) | 2013-08-19 | 2016-09-14 | Jfeスチール株式会社 | 鋼帯の製造方法および製造設備 |
| JP2019090106A (ja) * | 2017-11-15 | 2019-06-13 | Jfeスチール株式会社 | 急冷焼入れ装置及び急冷焼入れ方法並びに金属板製品の製造方法 |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5852416A (ja) | 1981-09-24 | 1983-03-28 | Ishikawajima Harima Heavy Ind Co Ltd | 金属冷却装置 |
| JPS5991282U (ja) | 1982-12-08 | 1984-06-20 | 石川島播磨重工業株式会社 | グラブクレ−ン |
| JPS61119623A (ja) * | 1984-11-15 | 1986-06-06 | Ishikawajima Harima Heavy Ind Co Ltd | 金属板等の冷却装置 |
| DE4009868A1 (de) * | 1990-03-28 | 1991-10-02 | Schloemann Siemag Ag | Vorrichtung zum kuehlen von walzband |
| JPH07252538A (ja) | 1994-03-15 | 1995-10-03 | Sumitomo Metal Ind Ltd | 薄鋼板の冷却方法 |
| JP4337157B2 (ja) | 1998-12-22 | 2009-09-30 | 住友金属工業株式会社 | 鋼板の冷却方法およびその装置 |
| JP2003034818A (ja) * | 2001-07-25 | 2003-02-07 | Kawasaki Steel Corp | 金属帯の冷却方法 |
| WO2006137187A1 (ja) | 2005-06-23 | 2006-12-28 | Nippon Steel Corporation | 厚鋼板の冷却装置 |
| EP1935522B1 (en) * | 2005-08-30 | 2015-11-18 | JFE Steel Corporation | Reversing rolling mill with cooling facility and corresponding method of cooling a steel plate or sheet |
| KR101144028B1 (ko) * | 2006-03-03 | 2012-05-09 | 제이에프이 스틸 가부시키가이샤 | 열연 강 스트립의 냉각 장치 및 냉각 방법 |
| JP4518117B2 (ja) * | 2006-08-21 | 2010-08-04 | Jfeスチール株式会社 | 熱延鋼帯の冷却装置および冷却方法 |
| JP4238260B2 (ja) | 2006-09-19 | 2009-03-18 | 新日本製鐵株式会社 | 鋼板の冷却方法 |
| JP4449991B2 (ja) * | 2007-02-26 | 2010-04-14 | Jfeスチール株式会社 | 熱延鋼帯の冷却装置及び方法 |
| DE102007055475A1 (de) * | 2007-06-27 | 2009-01-08 | Sms Demag Ag | Kühlvorrichtung zum Kühlen eines Metallbandes |
| DE202015104565U1 (de) | 2015-08-27 | 2015-09-15 | Northeastern University | Kühl- und Spritzwassersystem für mitteldickes Blech nach dem Walzen |
| JP6332878B2 (ja) * | 2016-09-28 | 2018-05-30 | 中外炉工業株式会社 | 帯状ワーク処理設備のシャッター機構 |
| CN110050077A (zh) * | 2016-12-07 | 2019-07-23 | 艾伯纳工业筑炉有限公司 | 用于对构件进行调温的调温装置 |
| JP6687090B2 (ja) * | 2017-11-30 | 2020-04-22 | Jfeスチール株式会社 | 急冷焼入れ装置及び急冷焼入れ方法並びに金属板製品の製造方法 |
| CN120647760A (zh) | 2019-08-12 | 2025-09-16 | 安托拉诊疗公司 | 卷曲受体抗体及其用途 |
| JP7470394B2 (ja) | 2020-06-09 | 2024-04-18 | 株式会社大一商会 | 遊技機 |
| JP7532477B2 (ja) | 2022-11-18 | 2024-08-13 | 三菱鉛筆株式会社 | 筆記具 |
-
2020
- 2020-09-18 EP EP20871593.8A patent/EP4012057A4/en active Pending
- 2020-09-18 CN CN202080067935.5A patent/CN114450424B/zh active Active
- 2020-09-18 WO PCT/JP2020/035571 patent/WO2021065583A1/ja not_active Ceased
- 2020-09-18 US US17/765,236 patent/US12365956B2/en active Active
- 2020-09-18 JP JP2021509932A patent/JP7103511B2/ja active Active
- 2020-09-18 KR KR1020227010186A patent/KR102698313B1/ko active Active
- 2020-09-18 MX MX2022003705A patent/MX2022003705A/es unknown
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58153733A (ja) | 1982-03-09 | 1983-09-12 | Nippon Kokan Kk <Nkk> | 連続熱処理工程におけるストリツプの冷却方法及び装置 |
| JPS59153843A (ja) | 1983-02-18 | 1984-09-01 | Nippon Kokan Kk <Nkk> | ストリップの冷却装置 |
| JPS60194022A (ja) | 1984-03-16 | 1985-10-02 | Nippon Kokan Kk <Nkk> | 連続熱処理工程におけるストリツプの冷却方法及び装置 |
| JPS6468427A (en) * | 1987-09-09 | 1989-03-14 | Kawasaki Steel Co | Method for uniformly cooling thick steel plate |
| JP2001353515A (ja) | 2000-06-14 | 2001-12-25 | Nkk Corp | 高温鋼板の水切り方法及びその装置 |
| JP2008019505A (ja) | 2006-06-13 | 2008-01-31 | Jfe Steel Kk | 鋼帯の冷却方法および冷却設備 |
| JP2009144189A (ja) * | 2007-12-12 | 2009-07-02 | Jfe Steel Corp | 鋼板の冷却方法および装置 |
| JP2012051013A (ja) | 2010-09-02 | 2012-03-15 | Jfe Steel Corp | 熱鋼板の水切り装置および水切り方法 |
| JP5991282B2 (ja) | 2013-08-19 | 2016-09-14 | Jfeスチール株式会社 | 鋼帯の製造方法および製造設備 |
| JP2019090106A (ja) * | 2017-11-15 | 2019-06-13 | Jfeスチール株式会社 | 急冷焼入れ装置及び急冷焼入れ方法並びに金属板製品の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114450424A (zh) | 2022-05-06 |
| EP4012057A4 (en) | 2022-10-12 |
| US12365956B2 (en) | 2025-07-22 |
| KR102698313B1 (ko) | 2024-08-22 |
| CN114450424B (zh) | 2023-10-31 |
| JP7103511B2 (ja) | 2022-07-20 |
| EP4012057A1 (en) | 2022-06-15 |
| MX2022003705A (es) | 2022-04-26 |
| JPWO2021065583A1 (ja) | 2021-11-04 |
| US20220349018A1 (en) | 2022-11-03 |
| KR20220052999A (ko) | 2022-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108474052B (zh) | 骤冷淬火装置及骤冷淬火方法 | |
| TWI460031B (zh) | 熱軋鋼板之冷卻裝置 | |
| KR101128316B1 (ko) | 연속 소둔 설비 | |
| WO2019087805A1 (ja) | 厚鋼板の製造設備及び製造方法 | |
| JP6870701B2 (ja) | 鋼板の冷却方法、鋼板の冷却装置および鋼板の製造方法 | |
| JP6687084B2 (ja) | 急冷焼入れ装置及び急冷焼入れ方法並びに金属板製品の製造方法 | |
| WO2017115742A1 (ja) | 急冷焼入れ装置及び急冷焼入れ方法 | |
| CN113677811A (zh) | 淬火装置以及金属板的制造方法 | |
| JP7103511B2 (ja) | 金属帯急冷装置及び金属帯急冷方法並びに金属帯製品の製造方法 | |
| US11230748B2 (en) | Method and section for quick cooling of a continuous line for treating metal belts | |
| JP6879428B2 (ja) | 焼入れ装置及び焼入れ方法並びに鋼板の製造方法 | |
| JP7338783B2 (ja) | 金属板の焼入れ装置及び焼入れ方法、並びに鋼板の製造方法 | |
| JP6687090B2 (ja) | 急冷焼入れ装置及び急冷焼入れ方法並びに金属板製品の製造方法 | |
| KR101360748B1 (ko) | 도금강판 냉각장치 | |
| US20240344158A1 (en) | Quenching apparatus for metal sheet, continuous annealing equipment, method for quenching metal sheet, method for manufacturing cold rolled steel sheet, and method for manufacturing coated steel sheet | |
| JPWO2020085353A1 (ja) | 焼入れ装置及び焼入れ方法並びに鋼板の製造方法 | |
| JP7180636B2 (ja) | 金属板の焼入れ装置及び金属板の焼入れ方法並びに鋼板の製造方法 | |
| KR20240035543A (ko) | ??칭 장치 및 ??칭 방법 그리고 금속판의 제조 방법 | |
| CN117999366A (zh) | 淬火装置及连续退火设备、以及淬火方法、钢板的制造方法及镀覆钢板的制造方法 | |
| KR101505271B1 (ko) | 가스 와이핑 장치 및 이를 이용한 용융아연도금강판 제조 방법 | |
| JP6760002B2 (ja) | 鋼板の冷却方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ENP | Entry into the national phase |
Ref document number: 2021509932 Country of ref document: JP Kind code of ref document: A |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20871593 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2020871593 Country of ref document: EP Effective date: 20220311 |
|
| ENP | Entry into the national phase |
Ref document number: 20227010186 Country of ref document: KR Kind code of ref document: A |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| WWG | Wipo information: grant in national office |
Ref document number: 17765236 Country of ref document: US |