JPS56158219A - Manufacture of high-grade steel sheet - Google Patents

Manufacture of high-grade steel sheet

Info

Publication number
JPS56158219A
JPS56158219A JP6325980A JP6325980A JPS56158219A JP S56158219 A JPS56158219 A JP S56158219A JP 6325980 A JP6325980 A JP 6325980A JP 6325980 A JP6325980 A JP 6325980A JP S56158219 A JPS56158219 A JP S56158219A
Authority
JP
Japan
Prior art keywords
dehydrogenation
steel sheet
cooling bed
cooling
heat insulating
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
JP6325980A
Other languages
Japanese (ja)
Inventor
Yasuta Shirai
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 JP6325980A priority Critical patent/JPS56158219A/en
Publication of JPS56158219A publication Critical patent/JPS56158219A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/008—Heat shields
    • 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
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Abstract

PURPOSE:To shorten the time of dehydrogenation treatment for a steel sheet just finished a hot rolling pass, and to attain a superior dehydrogenation effect, by slowly cooling the said steel sheet in a cooling bed covered with a heat insulating cover. CONSTITUTION:A hot slab after removing its surface flaws, is heated by a heating furnace and is hot rolled by a rolling mill into a steel sheet 7 which is then successively conveyed by a roller table 8 into the feed-in side of a dehydrogenation-purpose cooling bed 9 provided with a heat insulating cover; plural steel sheets 7 in a piled- up style are passed in the cooling bed 9 and are slowly cooled for the purpose of dehydrogenation treatment. Hereupon, the time of slow cooling for the purpose of dehydrogenation of the steel sheet 7, and the number of steel sheets 7 in one pile, are determined correspondingly to the hydrogen content of the molten steel and the thickness of the steel sheet 7. The dehydrogenation-purpose cooling bed 9 is covered with a bellows type heat insulating cover 10 internally lined with a heat insulating cloth 11 and freely stretchable in the direction of longitude of the cooling bed 9; hereby, the cooling bed 9 is isolated from the external air and is kept at temperature effective for carrying out a dehydrogenation treatment for the steel sheets 7 by slow cooling them for many hours, so that a superior dehydrogenation effect is attained.
JP6325980A 1980-05-12 1980-05-12 Manufacture of high-grade steel sheet Pending JPS56158219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6325980A JPS56158219A (en) 1980-05-12 1980-05-12 Manufacture of high-grade steel sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6325980A JPS56158219A (en) 1980-05-12 1980-05-12 Manufacture of high-grade steel sheet

Publications (1)

Publication Number Publication Date
JPS56158219A true JPS56158219A (en) 1981-12-05

Family

ID=13224086

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6325980A Pending JPS56158219A (en) 1980-05-12 1980-05-12 Manufacture of high-grade steel sheet

Country Status (1)

Country Link
JP (1) JPS56158219A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103182396A (en) * 2011-12-30 2013-07-03 中冶赛迪工程技术股份有限公司 Cooling bed thermal-insulation cover

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103182396A (en) * 2011-12-30 2013-07-03 中冶赛迪工程技术股份有限公司 Cooling bed thermal-insulation cover

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