JPS57130707A - Method and device for producing seamless pipe - Google Patents

Method and device for producing seamless pipe

Info

Publication number
JPS57130707A
JPS57130707A JP1544081A JP1544081A JPS57130707A JP S57130707 A JPS57130707 A JP S57130707A JP 1544081 A JP1544081 A JP 1544081A JP 1544081 A JP1544081 A JP 1544081A JP S57130707 A JPS57130707 A JP S57130707A
Authority
JP
Japan
Prior art keywords
pipe
mandrel
skew rolling
gnawed
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.)
Pending
Application number
JP1544081A
Other languages
Japanese (ja)
Inventor
Munekatsu Furukata
Hisashi Nakagawa
Hiromichi Sakamoto
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 JP1544081A priority Critical patent/JPS57130707A/en
Publication of JPS57130707A publication Critical patent/JPS57130707A/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
    • 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
    • B21B19/06—Rolling hollow basic material, e.g. Assel mills

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)

Abstract

PURPOSE:To obtain a long-sized pipe having no die line flaws and having dimensional stability by inserting a bottomed blank pipe onto a thrustable and rotatable mandrel and drawing the same with skew rolling rolls while giving reducing force to the bottom of the blank pipe. CONSTITUTION:The root end part of a mandrel 1 is connected to a carriage 2, is held rotatably around the axial line, and is thrust in the axial length direction. A bottomed blank pipe P0 inserted onto the mandrel 1 is gnawed 1 is gnawed between skew rolling rolls 3l, 3r of a skew rolling mill 3, and while it receives screw moving effect, it is rolled. The pipe P0 rolled in this way is cut off of its bottom part P'0 and is formed to a pipe.
JP1544081A 1981-02-03 1981-02-03 Method and device for producing seamless pipe Pending JPS57130707A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1544081A JPS57130707A (en) 1981-02-03 1981-02-03 Method and device for producing seamless pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1544081A JPS57130707A (en) 1981-02-03 1981-02-03 Method and device for producing seamless pipe

Publications (1)

Publication Number Publication Date
JPS57130707A true JPS57130707A (en) 1982-08-13

Family

ID=11888856

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1544081A Pending JPS57130707A (en) 1981-02-03 1981-02-03 Method and device for producing seamless pipe

Country Status (1)

Country Link
JP (1) JPS57130707A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5592207A (en) * 1978-12-29 1980-07-12 Nippon Steel Corp Production of seamless metal pipe
JPS55103206A (en) * 1979-01-31 1980-08-07 Nippon Steel Corp Manufacture of seamless metallic pipe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5592207A (en) * 1978-12-29 1980-07-12 Nippon Steel Corp Production of seamless metal pipe
JPS55103206A (en) * 1979-01-31 1980-08-07 Nippon Steel Corp Manufacture of seamless metallic pipe

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