JPS5564901A - Method and apparatus for broadside rolling - Google Patents

Method and apparatus for broadside rolling

Info

Publication number
JPS5564901A
JPS5564901A JP13690878A JP13690878A JPS5564901A JP S5564901 A JPS5564901 A JP S5564901A JP 13690878 A JP13690878 A JP 13690878A JP 13690878 A JP13690878 A JP 13690878A JP S5564901 A JPS5564901 A JP S5564901A
Authority
JP
Japan
Prior art keywords
slab
rolling
breadth
broadside
rolled
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
JP13690878A
Other languages
Japanese (ja)
Other versions
JPS5855842B2 (en
Inventor
Nobuhiro Tazoe
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.)
IHI Corp
Original Assignee
Ishikawajima Harima Heavy Industries Co 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 Ishikawajima Harima Heavy Industries Co Ltd filed Critical Ishikawajima Harima Heavy Industries Co Ltd
Priority to JP13690878A priority Critical patent/JPS5855842B2/en
Publication of JPS5564901A publication Critical patent/JPS5564901A/en
Publication of JPS5855842B2 publication Critical patent/JPS5855842B2/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
    • 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
    • B21B1/026—Rolling
    • 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
    • B21B1/224—Edge rolling of flat products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2263/00—Shape of product
    • B21B2263/20—End shape; fish tail; tongue

Landscapes

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

Abstract

PURPOSE:To diminish the crop loss, and to improve the product yield, by first rolling so as to reduce the thickness of the middle portion of the slab breadth at a greater rate than the reduction of thickness at the lateral edge portions, and then, by carrying out the broadside rolling to obtain the uniform thickness of the sheet. CONSTITUTION:The continuously cast slab 8 is discharged from the continuous casting machine 7 and is introduced into the rolling mill 1; in which, the slab 8 is rolled by the middle convexed reducing roll 2 so as to make the rolling reduction at the middle portion 9 of the breadth of the slab 8 to be greater than the reduction at the broadside edges of the slab 8. As a result, the material included in the middle portion 9 of the slab 8 breadth, is extruded in the direction of the tip and tail of the slab 8 forming a tongue type flat shape C. Next, this continuously cast slab 8 is broadside rolled by the vertical mill 3 into the specified breadth size, and the salb 8 is rolled in the final pass by the flat drum type reducing roll 6 of the finishing mill 5 into the slab of the specified form. According to this constitution, a small concave (d) is only formed in the surface of the tip and tail end of the post-rolling slab.
JP13690878A 1978-11-07 1978-11-07 Width reduction rolling method and its equipment Expired JPS5855842B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13690878A JPS5855842B2 (en) 1978-11-07 1978-11-07 Width reduction rolling method and its equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13690878A JPS5855842B2 (en) 1978-11-07 1978-11-07 Width reduction rolling method and its equipment

Publications (2)

Publication Number Publication Date
JPS5564901A true JPS5564901A (en) 1980-05-16
JPS5855842B2 JPS5855842B2 (en) 1983-12-12

Family

ID=15186374

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13690878A Expired JPS5855842B2 (en) 1978-11-07 1978-11-07 Width reduction rolling method and its equipment

Country Status (1)

Country Link
JP (1) JPS5855842B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62123854U (en) * 1986-01-29 1987-08-06

Also Published As

Publication number Publication date
JPS5855842B2 (en) 1983-12-12

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