JPS55119136A - Heating method for metallic material - Google Patents

Heating method for metallic material

Info

Publication number
JPS55119136A
JPS55119136A JP2548679A JP2548679A JPS55119136A JP S55119136 A JPS55119136 A JP S55119136A JP 2548679 A JP2548679 A JP 2548679A JP 2548679 A JP2548679 A JP 2548679A JP S55119136 A JPS55119136 A JP S55119136A
Authority
JP
Japan
Prior art keywords
steel pipe
steel
heating apparatus
heated
portions
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.)
Pending
Application number
JP2548679A
Other languages
Japanese (ja)
Inventor
Hitoshi Arai
Takeo Adachi
Tokio Nakagawa
Hideo Noguchi
Hiroshi Ishiyama
Koichi Yamamoto
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.)
KOKAN AEN MEKKI KK
JFE Engineering Corp
Original Assignee
KOKAN AEN MEKKI KK
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 KOKAN AEN MEKKI KK, NKK Corp, Nippon Kokan Ltd filed Critical KOKAN AEN MEKKI KK
Priority to JP2548679A priority Critical patent/JPS55119136A/en
Publication of JPS55119136A publication Critical patent/JPS55119136A/en
Pending 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
    • 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
    • C21D9/60—Continuous furnaces for strip or wire with induction heating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Abstract

PURPOSE:To control the heating of an end portion of a steel pipe freely by a method wherein a point of time when the end portion of the steel pipe reaches an inlet of a heating apparatus is detected, the transfer speed of the steel pipe is adjusted by the detected value, and the steel pipe is extracted from the heating apparatus while controlling the temperature of the steel pipe in the operation when the steel pipe, etc. are heated by means of an induction heating furnace while transporting the steel pipe, etc. CONSTITUTION:Steel materials such as round steel, a steel pipe, shape steel, etc. are heated being transferred by means of an induction heating apparatus. In this case, a point of time when the nose portions and rear end portions of the steel materials reach an inlet of the heating apparatus is detected, and transfer is halted for 0.2 second and 0.4 second. According to this method, such defect as the both end portions of the steel materials become lower than the central portions is removed, and the steel materials are heated at the same temperatures as the central portions or at temperatures even higher than those in response to the halting time of the steel materials.
JP2548679A 1979-03-07 1979-03-07 Heating method for metallic material Pending JPS55119136A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2548679A JPS55119136A (en) 1979-03-07 1979-03-07 Heating method for metallic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2548679A JPS55119136A (en) 1979-03-07 1979-03-07 Heating method for metallic material

Publications (1)

Publication Number Publication Date
JPS55119136A true JPS55119136A (en) 1980-09-12

Family

ID=12167375

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2548679A Pending JPS55119136A (en) 1979-03-07 1979-03-07 Heating method for metallic material

Country Status (1)

Country Link
JP (1) JPS55119136A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51145943A (en) * 1975-05-06 1976-12-15 Mitsui Eng & Shipbuild Co Ltd Induction heating device
JPS5296914A (en) * 1976-02-10 1977-08-15 Nippon Steel Corp Method and apparatus for uniformly heating end parts in continuous ind uction heating of metallic material
JPS5312709A (en) * 1976-07-22 1978-02-04 Nippon Steel Corp Uniform heating method for end parts of long-sized material in induction heating system
JPS53119440A (en) * 1977-03-25 1978-10-18 Mitsubishi Electric Corp Heater

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51145943A (en) * 1975-05-06 1976-12-15 Mitsui Eng & Shipbuild Co Ltd Induction heating device
JPS5296914A (en) * 1976-02-10 1977-08-15 Nippon Steel Corp Method and apparatus for uniformly heating end parts in continuous ind uction heating of metallic material
JPS5312709A (en) * 1976-07-22 1978-02-04 Nippon Steel Corp Uniform heating method for end parts of long-sized material in induction heating system
JPS53119440A (en) * 1977-03-25 1978-10-18 Mitsubishi Electric Corp Heater

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