JPS5471709A - Soaking method for hot steel ingot - Google Patents

Soaking method for hot steel ingot

Info

Publication number
JPS5471709A
JPS5471709A JP13856677A JP13856677A JPS5471709A JP S5471709 A JPS5471709 A JP S5471709A JP 13856677 A JP13856677 A JP 13856677A JP 13856677 A JP13856677 A JP 13856677A JP S5471709 A JPS5471709 A JP S5471709A
Authority
JP
Japan
Prior art keywords
steel
ingot
insulated
hot
mold
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.)
Granted
Application number
JP13856677A
Other languages
Japanese (ja)
Other versions
JPS5631334B2 (en
Inventor
Toshinori Naka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP13856677A priority Critical patent/JPS5471709A/en
Priority to GB7840294A priority patent/GB2008007A/en
Priority to NL7810454A priority patent/NL7810454A/en
Priority to BR7807469A priority patent/BR7807469A/en
Priority to FR7832524A priority patent/FR2409314A1/en
Priority to DE19782849968 priority patent/DE2849968A1/en
Publication of JPS5471709A publication Critical patent/JPS5471709A/en
Publication of JPS5631334B2 publication Critical patent/JPS5631334B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00—Casting ingots, e.g. from ferrous 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/84—Controlled slow 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/70—Furnaces for ingots, i.e. soaking pits

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

PURPOSE:To soak steel without use of fuel, by adiabatic soaking of hot ingot drawn from a mold in an insulated furnace in making ingot of rimmed steel or semi-killed steel. CONSTITUTION:In making ingot of rimmed steel or semi-killed steel, molten steel is drawn from the mold when the peripherel part has solidified and the central part has not yet solidified, then the steel ingot is charged into an insulated furnace, where it is adiabatically soaked. During the step from completion of pouring the steel into the mold until completion of charging the hot steel ingot to the insulated fornace, solidification ratio is set at 80% or lower. A definite time achedule is experimentally obtained previously according to the kind of steel and the quality of the material. When the solidification ratio comes to 90%, the hot steel ingot is taken out and transferred to the blooming step E. In place of the insulated furnce D, an insulated box D' may be used. This method is pref. from the energy-consumption-saving point of view because the fuel used for conventional soaking furnace becomes useless.
JP13856677A 1977-11-18 1977-11-18 Soaking method for hot steel ingot Granted JPS5471709A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP13856677A JPS5471709A (en) 1977-11-18 1977-11-18 Soaking method for hot steel ingot
GB7840294A GB2008007A (en) 1977-11-18 1978-10-12 Soaking partly solidified castings
NL7810454A NL7810454A (en) 1977-11-18 1978-10-18 PROCEDURE FOR SOAKING HOT STEEL CAST BLOCKS.
BR7807469A BR7807469A (en) 1977-11-18 1978-11-14 PROCESS FOR PROLONGED HEATING OF HOT STEEL INGOTS
FR7832524A FR2409314A1 (en) 1977-11-18 1978-11-17 HOT STEEL INGOT QUENCHING METHOD
DE19782849968 DE2849968A1 (en) 1977-11-18 1978-11-17 PROCEDURE FOR PERFORMING A THERMAL COMPENSATION PROCESS ON STEEL BLOCKS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13856677A JPS5471709A (en) 1977-11-18 1977-11-18 Soaking method for hot steel ingot

Publications (2)

Publication Number Publication Date
JPS5471709A true JPS5471709A (en) 1979-06-08
JPS5631334B2 JPS5631334B2 (en) 1981-07-21

Family

ID=15225126

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13856677A Granted JPS5471709A (en) 1977-11-18 1977-11-18 Soaking method for hot steel ingot

Country Status (1)

Country Link
JP (1) JPS5471709A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS569322A (en) * 1979-07-03 1981-01-30 Kawasaki Steel Corp Soaking of steel ingot

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5322806A (en) * 1976-08-17 1978-03-02 Kawasaki Steel Co Method of heating steel ingot uniformly
JPS53134756A (en) * 1977-04-28 1978-11-24 Nippon Steel Corp Method of directly bloom-rolling stell mass

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5322806A (en) * 1976-08-17 1978-03-02 Kawasaki Steel Co Method of heating steel ingot uniformly
JPS53134756A (en) * 1977-04-28 1978-11-24 Nippon Steel Corp Method of directly bloom-rolling stell mass

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS569322A (en) * 1979-07-03 1981-01-30 Kawasaki Steel Corp Soaking of steel ingot

Also Published As

Publication number Publication date
JPS5631334B2 (en) 1981-07-21

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