JPS54153749A - Inprovement in ridging of ferrite stainless steel manufactured by continuous casting method - Google Patents

Inprovement in ridging of ferrite stainless steel manufactured by continuous casting method

Info

Publication number
JPS54153749A
JPS54153749A JP6215578A JP6215578A JPS54153749A JP S54153749 A JPS54153749 A JP S54153749A JP 6215578 A JP6215578 A JP 6215578A JP 6215578 A JP6215578 A JP 6215578A JP S54153749 A JPS54153749 A JP S54153749A
Authority
JP
Japan
Prior art keywords
ridging
rolls
stainless steel
ferrite stainless
thickness
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
JP6215578A
Other languages
Japanese (ja)
Other versions
JPS6016281B2 (en
Inventor
Soichi Izumi
Yoshiro Koyasu
Hisashi Uchida
Tadaharu Okajima
Tatsuo Mogi
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 JP6215578A priority Critical patent/JPS6016281B2/en
Publication of JPS54153749A publication Critical patent/JPS54153749A/en
Publication of JPS6016281B2 publication Critical patent/JPS6016281B2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02—Rolling special iron alloys, e.g. stainless steel
    • 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
    • B21B1/02—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 heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
    • 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
    • B21B1/46—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 metal immediately subsequent to continuous casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2267/00—Roll parameters
    • B21B2267/02—Roll dimensions
    • B21B2267/06—Roll diameter

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

PURPOSE:To improve the ridging of continuously cast ferrite stainless steel by rolling a cast steel piece with rolls of different diameters by controlling the number and size of crystal grains during hot rolling in terms of the thickness and equiaxed crystal grain ratio of cast steel. CONSTITUTION:A continuously cast steel piece, the equiaxed crystal grain ratio and thickness of which are controlled to more than 50% and more than 130 mm preferably, respectively, is heated to 1250 deg.C or less and then rolled at a draft of more than 20 % by using a continuous hot rolling machine provided with one or more rolling machines with rolls of different diameters, or working rolls of a different diameter ratio of more than 15 %, to obtain hot rolled steel plate. Thus, the ferrite stainless steel is subjected to a specific deformation in the direction of plate thickness and the deformation restricted by rolls comes, therefore, deeply into the inside of plate, whereby greatly improving the ridging.
JP6215578A 1978-05-26 1978-05-26 Method for improving ridging of ferritic stainless steel manufactured by continuous casting method Expired JPS6016281B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6215578A JPS6016281B2 (en) 1978-05-26 1978-05-26 Method for improving ridging of ferritic stainless steel manufactured by continuous casting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6215578A JPS6016281B2 (en) 1978-05-26 1978-05-26 Method for improving ridging of ferritic stainless steel manufactured by continuous casting method

Publications (2)

Publication Number Publication Date
JPS54153749A true JPS54153749A (en) 1979-12-04
JPS6016281B2 JPS6016281B2 (en) 1985-04-24

Family

ID=13191928

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6215578A Expired JPS6016281B2 (en) 1978-05-26 1978-05-26 Method for improving ridging of ferritic stainless steel manufactured by continuous casting method

Country Status (1)

Country Link
JP (1) JPS6016281B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59133952A (en) * 1983-01-21 1984-08-01 Sumitomo Metal Ind Ltd Production of ferritic stainless steel plate
CN104801643A (en) * 2015-02-01 2015-07-29 江苏金源锻造股份有限公司 Forging technology of lifting hook

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63268091A (en) * 1987-04-27 1988-11-04 株式会社タツノ・メカトロニクス Cash drawer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59133952A (en) * 1983-01-21 1984-08-01 Sumitomo Metal Ind Ltd Production of ferritic stainless steel plate
CN104801643A (en) * 2015-02-01 2015-07-29 江苏金源锻造股份有限公司 Forging technology of lifting hook

Also Published As

Publication number Publication date
JPS6016281B2 (en) 1985-04-24

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