JPS56114561A - Width adjusting method of end part in slab lengthwise direction - Google Patents

Width adjusting method of end part in slab lengthwise direction

Info

Publication number
JPS56114561A
JPS56114561A JP1647480A JP1647480A JPS56114561A JP S56114561 A JPS56114561 A JP S56114561A JP 1647480 A JP1647480 A JP 1647480A JP 1647480 A JP1647480 A JP 1647480A JP S56114561 A JPS56114561 A JP S56114561A
Authority
JP
Japan
Prior art keywords
width
slab
forging
end part
deltah
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
JP1647480A
Other languages
Japanese (ja)
Other versions
JPS6036337B2 (en
Inventor
Shiro Ichikawa
Minoru Baba
Masahiko Oda
Masayasu Hoshitani
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 JP55016474A priority Critical patent/JPS6036337B2/en
Publication of JPS56114561A publication Critical patent/JPS56114561A/en
Publication of JPS6036337B2 publication Critical patent/JPS6036337B2/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

Landscapes

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

Abstract

PURPOSE:To prevent the formation of any irregular shaped part at the end part and improve the yield of width adjustment by screwing down by the amount of predetermined calculation at the time of adjusting to decrease the width of the end parts in the lengthwise direction of a slab by a predetermined amount. CONSTITUTION:The end part 2 of a slab 1 of width H0, thickness W0, and length L0 is screwed down by a forging to 6. The width draft is defined as DELTAh, mean forging width as Hm, the contact length between the parallel screw-down face 7 of the forging tool 6 and the side end face 3 of the slab 1 as ld, and the target width after screw down as H1. From the results of experiment, crops may be eliminated when Hm/ld 4. Namely, if the width draft DELTAh of the slab is determined in the formula Hm=(H0+H1)/2=H0-DELTAh/2, ld=Hm/4, the optimum contact length ld is obtained. Both end parts 2 of the slab are screwed down by using the forging tools 6 having the ld determined by the calculation and the broadside screw-down rolling is accomplished with vertical rolls 9, whereby the width H1 of the slab is adjusted.
JP55016474A 1980-02-13 1980-02-13 How to adjust the width of the longitudinal end of the slab Expired JPS6036337B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55016474A JPS6036337B2 (en) 1980-02-13 1980-02-13 How to adjust the width of the longitudinal end of the slab

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55016474A JPS6036337B2 (en) 1980-02-13 1980-02-13 How to adjust the width of the longitudinal end of the slab

Publications (2)

Publication Number Publication Date
JPS56114561A true JPS56114561A (en) 1981-09-09
JPS6036337B2 JPS6036337B2 (en) 1985-08-20

Family

ID=11917263

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55016474A Expired JPS6036337B2 (en) 1980-02-13 1980-02-13 How to adjust the width of the longitudinal end of the slab

Country Status (1)

Country Link
JP (1) JPS6036337B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6096301A (en) * 1983-10-27 1985-05-29 Hitachi Ltd Method and device for reducing width of rectangular material
JPS60166101A (en) * 1984-02-08 1985-08-29 Hitachi Ltd Method and device for reducing width of slab
JPS60203303A (en) * 1984-03-29 1985-10-14 Kawasaki Steel Corp Method for rolling hot slab in its width direction by press
JPS60203304A (en) * 1984-03-29 1985-10-14 Kawasaki Steel Corp Method for rolling hot slab in its width direction
JPS61103601A (en) * 1984-10-25 1986-05-22 Kawasaki Steel Corp Edging method of hot slab
JPS61202705A (en) * 1985-03-07 1986-09-08 Kawasaki Steel Corp Continuous edging press for hot slab

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5326759A (en) * 1976-08-26 1978-03-13 Kobe Steel Ltd Plate material rolling
JPS5510363A (en) * 1978-07-10 1980-01-24 Kawasaki Steel Corp Edging method for slab
JPS5630008A (en) * 1979-08-16 1981-03-26 Kawasaki Steel Corp Rolling method for hot strip
JPS5630009A (en) * 1979-08-16 1981-03-26 Kawasaki Steel Corp Rolling apparatus for hot strip
JPS5630007A (en) * 1979-08-16 1981-03-26 Kawasaki Steel Corp Rolling method for hot strip

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5326759A (en) * 1976-08-26 1978-03-13 Kobe Steel Ltd Plate material rolling
JPS5510363A (en) * 1978-07-10 1980-01-24 Kawasaki Steel Corp Edging method for slab
JPS5630008A (en) * 1979-08-16 1981-03-26 Kawasaki Steel Corp Rolling method for hot strip
JPS5630009A (en) * 1979-08-16 1981-03-26 Kawasaki Steel Corp Rolling apparatus for hot strip
JPS5630007A (en) * 1979-08-16 1981-03-26 Kawasaki Steel Corp Rolling method for hot strip

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6096301A (en) * 1983-10-27 1985-05-29 Hitachi Ltd Method and device for reducing width of rectangular material
JPS60166101A (en) * 1984-02-08 1985-08-29 Hitachi Ltd Method and device for reducing width of slab
JPS60203303A (en) * 1984-03-29 1985-10-14 Kawasaki Steel Corp Method for rolling hot slab in its width direction by press
JPS60203304A (en) * 1984-03-29 1985-10-14 Kawasaki Steel Corp Method for rolling hot slab in its width direction
JPH0330441B2 (en) * 1984-03-29 1991-04-30
JPS61103601A (en) * 1984-10-25 1986-05-22 Kawasaki Steel Corp Edging method of hot slab
JPH0683842B2 (en) * 1984-10-25 1994-10-26 川崎製鉄株式会社 Width reduction method of hot slab
JPS61202705A (en) * 1985-03-07 1986-09-08 Kawasaki Steel Corp Continuous edging press for hot slab
JPH0221322B2 (en) * 1985-03-07 1990-05-14 Kawasaki Seitetsu Kk

Also Published As

Publication number Publication date
JPS6036337B2 (en) 1985-08-20

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