JPS57142702A - Method and device for hot rolling which suppress formation of secondary scale of steel material - Google Patents

Method and device for hot rolling which suppress formation of secondary scale of steel material

Info

Publication number
JPS57142702A
JPS57142702A JP56026177A JP2617781A JPS57142702A JP S57142702 A JPS57142702 A JP S57142702A JP 56026177 A JP56026177 A JP 56026177A JP 2617781 A JP2617781 A JP 2617781A JP S57142702 A JPS57142702 A JP S57142702A
Authority
JP
Japan
Prior art keywords
covers
steel material
secondary scale
gas
oxygen partial
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
JP56026177A
Other languages
Japanese (ja)
Inventor
Toshitaro Mimaki
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
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP56026177A priority Critical patent/JPS57142702A/en
Publication of JPS57142702A publication Critical patent/JPS57142702A/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
    • B21B9/00—Measures for carrying out rolling operations under special conditions, e.g. in vacuum or inert atmosphere to prevent oxidation of work; Special measures for removing fumes from rolling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • 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
    • B21B45/04—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 for de-scaling, e.g. by brushing
    • B21B45/06—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 for de-scaling, e.g. by brushing of strip material
    • 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 suppress the formation of secondary scale and to decrease the watt loss and heat loss of steel materials by using gases of specific oxygen partial pressures as gaseous atmospheres for the steel materials under rolling. CONSTITUTION:Covers 4 which cover a steel material 3 are installed between the final roughing mill 1 and the 1st stage 2 of finishing mills, and gas of <=0.10 oxygen partial pressure is fed from a gas source 10 into the covers 4 through a blast duct 5 mounted to a part of said covers. Ducts 8, 9 wiich suck the blown- out gas and release the same to the outside of buildings are installed to the side faces 6, 7 of the covers. The atmosphere of the steel material in the covers 4 is the gas of <=0.10 oxygen partial pressure fed therein, whereby the formation of secondary scale is prevented.
JP56026177A 1981-02-26 1981-02-26 Method and device for hot rolling which suppress formation of secondary scale of steel material Pending JPS57142702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56026177A JPS57142702A (en) 1981-02-26 1981-02-26 Method and device for hot rolling which suppress formation of secondary scale of steel material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56026177A JPS57142702A (en) 1981-02-26 1981-02-26 Method and device for hot rolling which suppress formation of secondary scale of steel material

Publications (1)

Publication Number Publication Date
JPS57142702A true JPS57142702A (en) 1982-09-03

Family

ID=12186241

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56026177A Pending JPS57142702A (en) 1981-02-26 1981-02-26 Method and device for hot rolling which suppress formation of secondary scale of steel material

Country Status (1)

Country Link
JP (1) JPS57142702A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS613603A (en) * 1984-06-07 1986-01-09 ル・エール・リクイツド・ソシエテ・アノニム・プール・ル・エチユド・エ・ル・エクスプルワテシヨン・デ・プロセデ・ジエオルジエ・クロード Method and device for protecting solid metal from oxidation
WO2020053268A1 (en) * 2018-09-12 2020-03-19 Sms Group Gmbh Method for producing a metal article

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS613603A (en) * 1984-06-07 1986-01-09 ル・エール・リクイツド・ソシエテ・アノニム・プール・ル・エチユド・エ・ル・エクスプルワテシヨン・デ・プロセデ・ジエオルジエ・クロード Method and device for protecting solid metal from oxidation
WO2020053268A1 (en) * 2018-09-12 2020-03-19 Sms Group Gmbh Method for producing a metal article
CN112739469A (en) * 2018-09-12 2021-04-30 Sms集团有限公司 Method for manufacturing metal article
US11883868B2 (en) 2018-09-12 2024-01-30 Sms Group Gmbh Method for producing a metal article
CN112739469B (en) * 2018-09-12 2024-02-02 Sms集团有限公司 Method for producing a metal object

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