JPH04722B2 - - Google Patents

Info

Publication number
JPH04722B2
JPH04722B2 JP18178889A JP18178889A JPH04722B2 JP H04722 B2 JPH04722 B2 JP H04722B2 JP 18178889 A JP18178889 A JP 18178889A JP 18178889 A JP18178889 A JP 18178889A JP H04722 B2 JPH04722 B2 JP H04722B2
Authority
JP
Japan
Prior art keywords
mandrel
rolling
tension
stand
torque
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.)
Expired
Application number
JP18178889A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0252108A (ja
Inventor
Akihiro Tanaka
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co 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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP18178889A priority Critical patent/JPH0252108A/ja
Publication of JPH0252108A publication Critical patent/JPH0252108A/ja
Publication of JPH04722B2 publication Critical patent/JPH04722B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
    • B21B17/04—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length in a continuous process

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
JP18178889A 1989-07-14 1989-07-14 マンドレルの取替時期を決定する方法 Granted JPH0252108A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18178889A JPH0252108A (ja) 1989-07-14 1989-07-14 マンドレルの取替時期を決定する方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18178889A JPH0252108A (ja) 1989-07-14 1989-07-14 マンドレルの取替時期を決定する方法

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP55152682A Division JPS5775209A (en) 1980-10-30 1980-10-30 Pipe piercing mill and its tension controlling method

Publications (2)

Publication Number Publication Date
JPH0252108A JPH0252108A (ja) 1990-02-21
JPH04722B2 true JPH04722B2 (en, 2012) 1992-01-08

Family

ID=16106885

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18178889A Granted JPH0252108A (ja) 1989-07-14 1989-07-14 マンドレルの取替時期を決定する方法

Country Status (1)

Country Link
JP (1) JPH0252108A (en, 2012)

Also Published As

Publication number Publication date
JPH0252108A (ja) 1990-02-21

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