JPS57130706A - Production of tapered pipe - Google Patents

Production of tapered pipe

Info

Publication number
JPS57130706A
JPS57130706A JP1474081A JP1474081A JPS57130706A JP S57130706 A JPS57130706 A JP S57130706A JP 1474081 A JP1474081 A JP 1474081A JP 1474081 A JP1474081 A JP 1474081A JP S57130706 A JPS57130706 A JP S57130706A
Authority
JP
Japan
Prior art keywords
pipe
rolls
assel
mandrel
long
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
JP1474081A
Other languages
Japanese (ja)
Inventor
Hiroo Tada
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP1474081A priority Critical patent/JPS57130706A/en
Publication of JPS57130706A publication Critical patent/JPS57130706A/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 efficiently and easily by disposing plural Assel rolls around the axial line of a blank pipe inserted with a mandrel of a tapered shape and subjecting the pipe to Assel working in the direction of narrowing the pass. CONSTITUTION:A mandrel 4 having a taper is inserted into a blank pipe 5, and the pipe is inserted into the body 2 of a rolling mill, then Assel rolls 8 are revolved. At this same instant, a driving chuck 3 clamping one end of the pipe 5 and the mandrel 4 is driven to pull the pipe 5. The gap between the rolls 8 is narrowed by a pass adjusting mechanism 15, so that the rolls 8 are gnawed into the pipe 5. In this way, the long-sized pipe of the thin-walled and tapered pipe is obtained efficiently and easily.
JP1474081A 1981-02-03 1981-02-03 Production of tapered pipe Pending JPS57130706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1474081A JPS57130706A (en) 1981-02-03 1981-02-03 Production of tapered pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1474081A JPS57130706A (en) 1981-02-03 1981-02-03 Production of tapered pipe

Publications (1)

Publication Number Publication Date
JPS57130706A true JPS57130706A (en) 1982-08-13

Family

ID=11869514

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1474081A Pending JPS57130706A (en) 1981-02-03 1981-02-03 Production of tapered pipe

Country Status (1)

Country Link
JP (1) JPS57130706A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0671929U (en) * 1993-03-25 1994-10-07 三菱製鋼株式会社 Leaf spring device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0671929U (en) * 1993-03-25 1994-10-07 三菱製鋼株式会社 Leaf spring device

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