ATE553344T1 - MULTI-CHAMBER CONTINUOUS FURNACE WITH PROTECTIVE GAS OPERATION AND METHOD FOR OXIDE-FREE HEATING OF GALVANIZED WORKPIECES - Google Patents

MULTI-CHAMBER CONTINUOUS FURNACE WITH PROTECTIVE GAS OPERATION AND METHOD FOR OXIDE-FREE HEATING OF GALVANIZED WORKPIECES

Info

Publication number
ATE553344T1
ATE553344T1 AT06004360T AT06004360T ATE553344T1 AT E553344 T1 ATE553344 T1 AT E553344T1 AT 06004360 T AT06004360 T AT 06004360T AT 06004360 T AT06004360 T AT 06004360T AT E553344 T1 ATE553344 T1 AT E553344T1
Authority
AT
Austria
Prior art keywords
workpiece
protective gas
oxide
continuous furnace
furnace
Prior art date
Application number
AT06004360T
Other languages
German (de)
Inventor
Rolf-Josef Schwartz
Original Assignee
Schwartz Eva
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schwartz Eva filed Critical Schwartz Eva
Application granted granted Critical
Publication of ATE553344T1 publication Critical patent/ATE553344T1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F27B9/028—Multi-chamber type furnaces
    • 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
    • C21D1/673—Quenching devices for die 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • 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
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere
    • C21D1/763—Adjusting the composition of the atmosphere using a catalyst
    • 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
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
    • 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
    • C21D9/0056—Furnaces through which the charge is moved in a horizontal straight path
    • 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
    • C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
    • F27B9/045—Furnaces with controlled atmosphere
    • F27B9/047—Furnaces with controlled atmosphere the atmosphere consisting of protective gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B9/3005—Details, accessories or equipment specially adapted for furnaces of these types arrangements for circulating gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining or circulating atmospheres in heating chambers
    • F27D7/02—Supplying steam, vapour, gases or liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining or circulating atmospheres in heating chambers
    • F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/007—Partitions

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Tunnel Furnaces (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Coating With Molten Metal (AREA)
  • Furnace Details (AREA)

Abstract

In a method for heating a galvanized workpiece (20) by passage on a transporter (50) through a run-through furnace (10) with a heater (60), the workpiece is passed through successive chamber regions (11-14), each with a protective gas supply point (31-34), the gas flowing against the direction of motion of the workpiece. Convective circulation of the gas through the overall furnace is inhibited by guiding systems (71-73) between the chambers : Independent claims are included for: (1) the corresponding furnace; and (2) a method for press-hardening workpieces, where the workpiece is heated by the present process before introduction into the press.
AT06004360T 2006-03-03 2006-03-03 MULTI-CHAMBER CONTINUOUS FURNACE WITH PROTECTIVE GAS OPERATION AND METHOD FOR OXIDE-FREE HEATING OF GALVANIZED WORKPIECES ATE553344T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06004360A EP1830147B1 (en) 2006-03-03 2006-03-03 Multi-chamber continuous furnace with protective gas supply and process for the scale free heating of galvanized workpieces

Publications (1)

Publication Number Publication Date
ATE553344T1 true ATE553344T1 (en) 2012-04-15

Family

ID=36676584

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06004360T ATE553344T1 (en) 2006-03-03 2006-03-03 MULTI-CHAMBER CONTINUOUS FURNACE WITH PROTECTIVE GAS OPERATION AND METHOD FOR OXIDE-FREE HEATING OF GALVANIZED WORKPIECES

Country Status (3)

Country Link
EP (1) EP1830147B1 (en)
AT (1) ATE553344T1 (en)
ES (1) ES2383964T3 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009017610A1 (en) 2009-04-15 2010-10-21 Gemkow, Stefan, Dipl.-Ing. Treatment tunnel for operation in high or low temperature and/or in protective gas atmosphere, comprises a paternoster-like conveyor for transporting materials to be treated through the tunnel
ES2528001T3 (en) * 2011-02-10 2015-02-03 Schwartz, Eva Oven
DE102012221120B4 (en) * 2012-11-19 2017-01-26 Kirchhoff Automotive Deutschland Gmbh Roller hearth furnace and method for heat treatment of metallic sheets
DE102013107777A1 (en) 2013-07-22 2015-01-22 Thyssenkrupp Steel Europe Ag Apparatus for the heat treatment of coated semi-finished steel products
DE102014110415B4 (en) 2014-07-23 2016-10-20 Voestalpine Stahl Gmbh Method for heating steel sheets and apparatus for carrying out the method
CN105937853B (en) * 2016-05-26 2018-03-06 孙颖 Steel belt type reducing furnace protective atmosphere gas system
DE102017110221A1 (en) * 2017-05-11 2018-11-15 Gottfried Wilhelm Leibniz Universität Hannover Process for heat treatment of a component and plant therefor
CN113905832B (en) * 2019-12-20 2024-08-20 现代制铁株式会社 Hot stamping blank and method for producing the same, hot stamping part and method for producing the same
CN113924373B (en) * 2019-12-20 2023-09-01 现代制铁株式会社 Hot stamping part and manufacturing method thereof
KR102366284B1 (en) * 2020-12-28 2022-02-23 현대제철 주식회사 Hot stamping component and method of manufacturing the same
DE102024125622A1 (en) 2024-09-06 2026-03-12 Onejoon Gmbh Process device for the thermal treatment of process material

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0619106B2 (en) * 1984-09-20 1994-03-16 大同特殊鋼株式会社 Continuous atmosphere heat treatment equipment
JPH03125897A (en) * 1989-10-12 1991-05-29 R I Denshi Kogyo:Kk Extremely low oxygen concentration atmospheric furnace
EP0632842B1 (en) * 1992-03-27 1995-11-02 HEIMSOTH VERWALTUNGEN GmbH & CO. KG Beteiligungsgesellschaft Heat treatment process for metal articles
US5968457A (en) * 1994-06-06 1999-10-19 Praxair Technology, Inc. Apparatus for producing heat treatment atmospheres
DE19719203C2 (en) 1996-05-10 2000-05-11 Eisenmann Kg Maschbau Sintering process for made of metal powder, in particular of multicomponent systems based on iron powder, pressed molded parts and sintering furnace suitable for carrying out the process
DE19621036C2 (en) 1996-05-24 2000-07-06 Westfalen Ag Device for generating endogas
US6283748B1 (en) * 1999-06-17 2001-09-04 Btu International, Inc. Continuous pusher furnace having traveling gas barrier

Also Published As

Publication number Publication date
EP1830147A1 (en) 2007-09-05
ES2383964T3 (en) 2012-06-27
EP1830147B1 (en) 2012-04-11

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