JPS57188620A - Temperature controlling method of continuous heat treatment furnace - Google Patents

Temperature controlling method of continuous heat treatment furnace

Info

Publication number
JPS57188620A
JPS57188620A JP7445681A JP7445681A JPS57188620A JP S57188620 A JPS57188620 A JP S57188620A JP 7445681 A JP7445681 A JP 7445681A JP 7445681 A JP7445681 A JP 7445681A JP S57188620 A JPS57188620 A JP S57188620A
Authority
JP
Japan
Prior art keywords
temperature
furnace
heat treatment
found
upset part
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
JP7445681A
Other languages
Japanese (ja)
Other versions
JPS6143414B2 (en
Inventor
Shigeru Sano
Katsumi Sakurai
Kazuo Atago
Haruhiro Noguchi
Shigeo Kawabata
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP7445681A priority Critical patent/JPS57188620A/en
Publication of JPS57188620A publication Critical patent/JPS57188620A/en
Publication of JPS6143414B2 publication Critical patent/JPS6143414B2/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)
  • Control Of Heat Treatment Processes (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

PURPOSE:To obtain the uniform temperature of a pipe body efficiently by finding the ability of heat treatment from the staying time of a material to be treated in a heat t reatment furnace and its heating temperature, and heating the upset part of the steel tube so that it matches with the ability of heat treatment. CONSTITUTION:An arithmetic device 60 determines the heat pattern of each zone of a heat treatment furnace 20 previously on the basis of various data, and controllers 40 and 50 are controlled to heat each zone of the heat treatment furnace 20 to prescribed temperature before a material to be treated is conveyed. The desired temperature of the material on the extraction side of the furnace 20 is determined already and its furnace staying time is estimated. Then, the temperature of the upset part of a pipe at a prescribed time before the extraction side of the furnace 20 is found by reversed arithmetic from the desired temperature and heating temperature, and on the basis of the upset part temperature, the temperature prior to a prescribed time is found by reversed arithmetic. Thus, the temperature of the upset part of the charging end of the furnace 20 is found finally. While attention to natural cooling between a preheater 10 and the furnace 20 is paid, the temperature of the upset part of the exit side of the preheater 10 is found and the heating of the preheater 10 is controlled so that said temperature is obtained.
JP7445681A 1981-05-18 1981-05-18 Temperature controlling method of continuous heat treatment furnace Granted JPS57188620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7445681A JPS57188620A (en) 1981-05-18 1981-05-18 Temperature controlling method of continuous heat treatment furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7445681A JPS57188620A (en) 1981-05-18 1981-05-18 Temperature controlling method of continuous heat treatment furnace

Publications (2)

Publication Number Publication Date
JPS57188620A true JPS57188620A (en) 1982-11-19
JPS6143414B2 JPS6143414B2 (en) 1986-09-27

Family

ID=13547755

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7445681A Granted JPS57188620A (en) 1981-05-18 1981-05-18 Temperature controlling method of continuous heat treatment furnace

Country Status (1)

Country Link
JP (1) JPS57188620A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105177400A (en) * 2015-10-27 2015-12-23 张荣斌 Intelligent alloy plate hammer manufacturing system and method
CN105242633A (en) * 2015-10-27 2016-01-13 张荣斌 Alloy plate hammer intelligent preparation method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105177400A (en) * 2015-10-27 2015-12-23 张荣斌 Intelligent alloy plate hammer manufacturing system and method
CN105242633A (en) * 2015-10-27 2016-01-13 张荣斌 Alloy plate hammer intelligent preparation method
CN105242633B (en) * 2015-10-27 2018-09-21 浙江国正安全技术有限公司 A kind of intelligent preparation method of alloy bar

Also Published As

Publication number Publication date
JPS6143414B2 (en) 1986-09-27

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