JPS5511140A - Combustion-controlling process for soaking pit and method for making it airtight therefor - Google Patents

Combustion-controlling process for soaking pit and method for making it airtight therefor

Info

Publication number
JPS5511140A
JPS5511140A JP8331478A JP8331478A JPS5511140A JP S5511140 A JPS5511140 A JP S5511140A JP 8331478 A JP8331478 A JP 8331478A JP 8331478 A JP8331478 A JP 8331478A JP S5511140 A JPS5511140 A JP S5511140A
Authority
JP
Japan
Prior art keywords
furnace
steel ingot
airtight
combustion
dampers
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
JP8331478A
Other languages
Japanese (ja)
Other versions
JPS5755772B2 (en
Inventor
Minoru Kitamura
Yusuke Hamazaki
Nobutomo Masuda
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP8331478A priority Critical patent/JPS5511140A/en
Publication of JPS5511140A publication Critical patent/JPS5511140A/en
Publication of JPS5755772B2 publication Critical patent/JPS5755772B2/ja
Granted legal-status Critical Current

Links

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
    • C21D11/00—Process control or regulation for heat treatments

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Details (AREA)
  • Regulation And Control Of Combustion (AREA)

Abstract

PURPOSE:To decrease fuel consumption per unit product without decreasing heat efficiency, by stopping the operation of a blower, and by shutting dampers for secondary air and for a flue after the steel ingot having been heated is drawn off from a soaking pit, then by charging new not steel ingot into the furnace and making the furnace airtight so as to raise the temp. in the furnace. CONSTITUTION:After steel ingot having been heated is drawn off, a blower 10 is stopped, and dampers 11, 14 for secondary air and flue gas are closed so as to make the soaking pit airtight, hereby temp. in the furnace falls gradually. Then the cover 13 is opened in order to charge new not steel ingot, and the cover is immediately closed. The temp. in the furnace is raised by the sensible heat of the hot steel ingot 3 and furnace wall 4 to reach an equilibrium. Just before that time, the dampers 11, 14 are opened and the blower 10 is started so as to cause automatic combustion. After completion of the soaking of the steel ingot 3, combustion is stopped, and simultaneously above described operations are repeated to make the furnace 1 airtight.
JP8331478A 1978-07-07 1978-07-07 Combustion-controlling process for soaking pit and method for making it airtight therefor Granted JPS5511140A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8331478A JPS5511140A (en) 1978-07-07 1978-07-07 Combustion-controlling process for soaking pit and method for making it airtight therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8331478A JPS5511140A (en) 1978-07-07 1978-07-07 Combustion-controlling process for soaking pit and method for making it airtight therefor

Publications (2)

Publication Number Publication Date
JPS5511140A true JPS5511140A (en) 1980-01-25
JPS5755772B2 JPS5755772B2 (en) 1982-11-26

Family

ID=13798952

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8331478A Granted JPS5511140A (en) 1978-07-07 1978-07-07 Combustion-controlling process for soaking pit and method for making it airtight therefor

Country Status (1)

Country Link
JP (1) JPS5511140A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5728772A (en) * 1995-07-26 1998-03-17 Mitsubishi Chemical Mkv Company Thermoplastic elastomer composition

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52142611A (en) * 1976-05-25 1977-11-28 Nippon Kokan Kk <Nkk> Heating method in soaking pit
JPS5345610A (en) * 1976-10-06 1978-04-24 Sumitomo Metal Ind Ltd Soaking method for steel ingot

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52142611A (en) * 1976-05-25 1977-11-28 Nippon Kokan Kk <Nkk> Heating method in soaking pit
JPS5345610A (en) * 1976-10-06 1978-04-24 Sumitomo Metal Ind Ltd Soaking method for steel ingot

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5728772A (en) * 1995-07-26 1998-03-17 Mitsubishi Chemical Mkv Company Thermoplastic elastomer composition

Also Published As

Publication number Publication date
JPS5755772B2 (en) 1982-11-26

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