JPS6431504A - Piercing rolling method - Google Patents

Piercing rolling method

Info

Publication number
JPS6431504A
JPS6431504A JP62189307A JP18930787A JPS6431504A JP S6431504 A JPS6431504 A JP S6431504A JP 62189307 A JP62189307 A JP 62189307A JP 18930787 A JP18930787 A JP 18930787A JP S6431504 A JPS6431504 A JP S6431504A
Authority
JP
Japan
Prior art keywords
roll
solid billet
plugging
plug
generation
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
JP62189307A
Other languages
Japanese (ja)
Other versions
JPH0692006B2 (en
Inventor
Tomio Yamakawa
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
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP62189307A priority Critical patent/JPH0692006B2/en
Publication of JPS6431504A publication Critical patent/JPS6431504A/en
Publication of JPH0692006B2 publication Critical patent/JPH0692006B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills

Landscapes

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

Abstract

PURPOSE:To constrain the generation of a plugging by varying the crossed angle of an inclined roll or the roll opening in the closing direction of the roll outlet side in the case of the bottom part of the material to be worked drawing out of the inclined roll. CONSTITUTION:When a solid billet B is bitten into the roll inlet side of inclined rolls 11, 12, it is transferred in the shaft length direction with being rotated around the axial core line by the inclined rolls 11, 12 and pierced with being expanded at its diameter by a plug 13 and a hollow blank pipe H is obtd. At the time when the bottom part of the solid billet B is drawn out of the inclined rolls 11, 12 the crossed angle of the inclined roll or roll opening is varied in the closing direction of the roll outlet side. The thickness working amt. for the solid billet B is thus increased at the bottom drawing time, the motive force more than the drag by the plug 13 is given to the solid billet B and the generation of the plugging is restrained with the motive force thereof.
JP62189307A 1987-07-28 1987-07-28 Piercing and rolling method Expired - Lifetime JPH0692006B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62189307A JPH0692006B2 (en) 1987-07-28 1987-07-28 Piercing and rolling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62189307A JPH0692006B2 (en) 1987-07-28 1987-07-28 Piercing and rolling method

Publications (2)

Publication Number Publication Date
JPS6431504A true JPS6431504A (en) 1989-02-01
JPH0692006B2 JPH0692006B2 (en) 1994-11-16

Family

ID=16239148

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62189307A Expired - Lifetime JPH0692006B2 (en) 1987-07-28 1987-07-28 Piercing and rolling method

Country Status (1)

Country Link
JP (1) JPH0692006B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021171826A1 (en) * 2020-02-26 2021-09-02

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021171826A1 (en) * 2020-02-26 2021-09-02
WO2021171826A1 (en) * 2020-02-26 2021-09-02 Ｊｆｅスチール株式会社 Seamless tube and method for manufacturing same

Also Published As

Publication number Publication date
JPH0692006B2 (en) 1994-11-16

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term
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