JPS5548401A - Latitudinal rolling method of plate and its device - Google Patents

Latitudinal rolling method of plate and its device

Info

Publication number
JPS5548401A
JPS5548401A JP11935278A JP11935278A JPS5548401A JP S5548401 A JPS5548401 A JP S5548401A JP 11935278 A JP11935278 A JP 11935278A JP 11935278 A JP11935278 A JP 11935278A JP S5548401 A JPS5548401 A JP S5548401A
Authority
JP
Japan
Prior art keywords
working
taper
width
rolling
plate
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
JP11935278A
Other languages
Japanese (ja)
Inventor
Toshiyuki Kajiwara
Tomoaki Kimura
Hiroshi Awatsuhara
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11935278A priority Critical patent/JPS5548401A/en
Publication of JPS5548401A publication Critical patent/JPS5548401A/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
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0035—Forging or pressing devices as units
    • 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
    • B21B1/024—Forging or pressing

Landscapes

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

Abstract

PURPOSE:Not only to decrease the fish tail amount but also to make the vertical roll fit in easily, by working the plate end part to a taper shape so that its width becomes small, and subsequently, by rolling it latitudinally. CONSTITUTION:A taper working machine is installed at the upper stream side of the width rolling mill consisting of one pair of vertical rolls. The tip of the plate 1 prior to latitudinal rolling is compressed to a taper shape since its sides are pressed by being placed between one pair of levers 3, on the way of being carried in the direction indicated with an arrow. One end of the lever 3 makes a pin 4 its supporting point and is rotated by the reciprocating motion of the piston 6 owing to oil pressure in the cylinder 5. In case this working is carried out, the stopper 8 is pressed from both the sides of material by the pressure device such as the cylinder 7, etc. in order to prevent the material from being pushed back in the direction of the upper stream. Also, as far as the taper working is concerned, since the fish tail amount becomes less than 70% as a result of reducing the width by more than 30% of the whole width screw-down amount, the yield rate of the product is elevated. Also, the material can be fitted into the vertical rolls 2 owing to the taper working, and both the diameter of the vertical roll and the necessary rolling force can be reduced.
JP11935278A 1978-09-29 1978-09-29 Latitudinal rolling method of plate and its device Pending JPS5548401A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11935278A JPS5548401A (en) 1978-09-29 1978-09-29 Latitudinal rolling method of plate and its device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11935278A JPS5548401A (en) 1978-09-29 1978-09-29 Latitudinal rolling method of plate and its device

Publications (1)

Publication Number Publication Date
JPS5548401A true JPS5548401A (en) 1980-04-07

Family

ID=14759356

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11935278A Pending JPS5548401A (en) 1978-09-29 1978-09-29 Latitudinal rolling method of plate and its device

Country Status (1)

Country Link
JP (1) JPS5548401A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57141801U (en) * 1981-02-26 1982-09-06
JPS58196101A (en) * 1982-05-10 1983-11-15 Sumitomo Metal Ind Ltd Hot rolling method of bloom
JPS5933001A (en) * 1982-08-17 1984-02-22 Sumitomo Metal Ind Ltd Preforming installation for bloom
JPS60203303A (en) * 1984-03-29 1985-10-14 Kawasaki Steel Corp Method for rolling hot slab in its width direction by press

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57141801U (en) * 1981-02-26 1982-09-06
JPS58196101A (en) * 1982-05-10 1983-11-15 Sumitomo Metal Ind Ltd Hot rolling method of bloom
JPS5933001A (en) * 1982-08-17 1984-02-22 Sumitomo Metal Ind Ltd Preforming installation for bloom
JPS60203303A (en) * 1984-03-29 1985-10-14 Kawasaki Steel Corp Method for rolling hot slab in its width direction by press
JPH0330441B2 (en) * 1984-03-29 1991-04-30

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