JPS5557301A - Production of thick steel plate - Google Patents

Production of thick steel plate

Info

Publication number
JPS5557301A
JPS5557301A JP12853578A JP12853578A JPS5557301A JP S5557301 A JPS5557301 A JP S5557301A JP 12853578 A JP12853578 A JP 12853578A JP 12853578 A JP12853578 A JP 12853578A JP S5557301 A JPS5557301 A JP S5557301A
Authority
JP
Japan
Prior art keywords
blank
rolls
rolling
steel plate
thick steel
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
JP12853578A
Other languages
Japanese (ja)
Inventor
Shizutada Yamagishi
Takeshi Hirasawa
Original Assignee
Nippon Kokan Kk <Nkk>
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 Kokan Kk <Nkk> filed Critical Nippon Kokan Kk <Nkk>
Priority to JP12853578A priority Critical patent/JPS5557301A/en
Publication of JPS5557301A publication Critical patent/JPS5557301A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-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
    • B21B1/02Metal-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 heavy work, e.g. ingots, slabs, blooms billets, in which the cross-sectional form is unimportant Rolling combined with forging or pressing
    • B21B1/026Rolling

Abstract

PURPOSE:To increase the rolling pressure in the central part of rolling blank and produce the thick steel plate of high quality free from loose structure, etc. by providing serrations to roughing rolls and rolling the blank with these rolls then rolling the same flat. CONSTITUTION:Steel ingot 4 is rolled with serrated rolls 5 which comprise providing serrations of convex or concave form of more than 10mm in diameteral difference to roughing rolls, by which a blank 6 of convex or concave form in section is made. Next, this is rolled with flat rolls 7 to a flat blank or thick steel plate 8. This method increases the rolling pressure in the central part of the blank of the specific range, and causes the casting structure in the central part of the steel ingot of the specific range to be well forged.
JP12853578A 1978-10-20 1978-10-20 Production of thick steel plate Pending JPS5557301A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12853578A JPS5557301A (en) 1978-10-20 1978-10-20 Production of thick steel plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12853578A JPS5557301A (en) 1978-10-20 1978-10-20 Production of thick steel plate

Publications (1)

Publication Number Publication Date
JPS5557301A true JPS5557301A (en) 1980-04-28

Family

ID=14987148

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12853578A Pending JPS5557301A (en) 1978-10-20 1978-10-20 Production of thick steel plate

Country Status (1)

Country Link
JP (1) JPS5557301A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58161501A (en) * 1982-03-19 1983-09-26 Matsushita Electric Ind Co Ltd Band-pass filter
JPH04305301A (en) * 1991-04-01 1992-10-28 Nkk Corp Rolling method of billet
JPH04327301A (en) * 1991-04-30 1992-11-16 Nkk Corp Method for rolling billet
JP2015217392A (en) * 2014-05-14 2015-12-07 新日鐵住金株式会社 Cast metal continuous casting method and continuously cast cast metal
JP2016016450A (en) * 2014-07-11 2016-02-01 新日鐵住金株式会社 Continuous casting method of steel and continuous casting cast bloom

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58161501A (en) * 1982-03-19 1983-09-26 Matsushita Electric Ind Co Ltd Band-pass filter
JPH04305301A (en) * 1991-04-01 1992-10-28 Nkk Corp Rolling method of billet
JPH04327301A (en) * 1991-04-30 1992-11-16 Nkk Corp Method for rolling billet
JP2015217392A (en) * 2014-05-14 2015-12-07 新日鐵住金株式会社 Cast metal continuous casting method and continuously cast cast metal
JP2016016450A (en) * 2014-07-11 2016-02-01 新日鐵住金株式会社 Continuous casting method of steel and continuous casting cast bloom

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