JPS5570403A - Method and apparatus for edging to reduce breadth - Google Patents

Method and apparatus for edging to reduce breadth

Info

Publication number
JPS5570403A
JPS5570403A JP14510278A JP14510278A JPS5570403A JP S5570403 A JPS5570403 A JP S5570403A JP 14510278 A JP14510278 A JP 14510278A JP 14510278 A JP14510278 A JP 14510278A JP S5570403 A JPS5570403 A JP S5570403A
Authority
JP
Japan
Prior art keywords
breadth
edging
tip
edges
reduced
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
JP14510278A
Other languages
Japanese (ja)
Inventor
Hikonori Ishii
Hajime Watanabe
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
IHI 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 IHI Corp filed Critical IHI Corp
Priority to JP14510278A priority Critical patent/JPS5570403A/en
Publication of JPS5570403A publication Critical patent/JPS5570403A/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
    • 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
    • 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 reduce the amount of fish tail, and to contrive improvement of the yield, by installing the press machine for deforming both edges of the tip of material into narrower breadth on this side of the reducing roll, and by executing the edging work to reduce the breadth. CONSTITUTION:On this side of the reducing roll 4 of the edging mill (at the position on the entry and exist sides), the press machine 5 for deforming the breadth at both edges of the tip and the rear end of the material 1 like as the slab, etc., into narrower breadth than that of the material 1, is installed so as to be movable with the cylinder 6 in the opposite directions. Before the material 1 is fed into the reducing roll 4 for carrying out several passes of the edging work, the breadth at both edges is reduced with the entry side press machine 5 in order to prevent the contact between the tip of material 1 and the roll 4. By executing the edging work under these conditions, the amount of fish tail to be generated is reduced, the crop loss due to cutting works is reduced, and the yield is improved.
JP14510278A 1978-11-24 1978-11-24 Method and apparatus for edging to reduce breadth Pending JPS5570403A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14510278A JPS5570403A (en) 1978-11-24 1978-11-24 Method and apparatus for edging to reduce breadth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14510278A JPS5570403A (en) 1978-11-24 1978-11-24 Method and apparatus for edging to reduce breadth

Publications (1)

Publication Number Publication Date
JPS5570403A true JPS5570403A (en) 1980-05-27

Family

ID=15377410

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14510278A Pending JPS5570403A (en) 1978-11-24 1978-11-24 Method and apparatus for edging to reduce breadth

Country Status (1)

Country Link
JP (1) JPS5570403A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS579502A (en) * 1980-06-20 1982-01-19 Sumitomo Metal Ind Ltd Forming method for end of steel billet
US4344309A (en) * 1978-10-20 1982-08-17 Kawasaki Steel Corporation Process for preventing growth of fishtails during slabbing
US4387586A (en) * 1979-10-31 1983-06-14 Hitachi, Ltd. Method of widthwise rolling of rolled material and apparatus therefor
JPS58192601A (en) * 1982-05-07 1983-11-10 Sumitomo Metal Ind Ltd Preforming method of bloom

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5393158A (en) * 1977-01-27 1978-08-15 Kawasaki Steel Co Fish tail growth preventive at blooming

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5393158A (en) * 1977-01-27 1978-08-15 Kawasaki Steel Co Fish tail growth preventive at blooming

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344309A (en) * 1978-10-20 1982-08-17 Kawasaki Steel Corporation Process for preventing growth of fishtails during slabbing
US4387586A (en) * 1979-10-31 1983-06-14 Hitachi, Ltd. Method of widthwise rolling of rolled material and apparatus therefor
JPS579502A (en) * 1980-06-20 1982-01-19 Sumitomo Metal Ind Ltd Forming method for end of steel billet
JPS5854883B2 (en) * 1980-06-20 1983-12-07 住友金属工業株式会社 How to form the end of a steel billet
JPS58192601A (en) * 1982-05-07 1983-11-10 Sumitomo Metal Ind Ltd Preforming method of bloom

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