JPS57171506A - Mandrel rolling mill and its rolling method - Google Patents

Mandrel rolling mill and its rolling method

Info

Publication number
JPS57171506A
JPS57171506A JP5497881A JP5497881A JPS57171506A JP S57171506 A JPS57171506 A JP S57171506A JP 5497881 A JP5497881 A JP 5497881A JP 5497881 A JP5497881 A JP 5497881A JP S57171506 A JPS57171506 A JP S57171506A
Authority
JP
Japan
Prior art keywords
mandrel
rolling
diameter
beneath
constitution
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
JP5497881A
Other languages
Japanese (ja)
Other versions
JPH0116564B2 (en
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
Toshiba Corp
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5497881A priority Critical patent/JPS57171506A/en
Publication of JPS57171506A publication Critical patent/JPS57171506A/en
Publication of JPH0116564B2 publication Critical patent/JPH0116564B2/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
    • B21B17/08—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 having one or more protrusions, i.e. only the mandrel plugs contact the rolled tube; Press-piercing mills
    • B21B17/10—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 having one or more protrusions, i.e. only the mandrel plugs contact the rolled tube; Press-piercing mills in a continuous process

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

PURPOSE:To perfectly eliminate frictional force between a pipe material and a mandrel and to stabilize a rolling, by fixing the mandrel with stepped sizes, large in diameter only in a range of receiving directly contact pressing force from a mill roll, to the rolling position by a restricting device. CONSTITUTION:A mandrel 11, formed of such constitution that its part located just beneath grooved rolls 1-1-1-n and related to the rolling of a pipe material 12 has large diameter and another part located in the intermediate part not related to the rolling has small diameter, is fixed to a restriction device 13 with a flange 15 in order not to move in the direction of rolling. A mandrel driving device 14 moves the mandrel 11 backward and forward only when the mandrel is in noload condition. The mandrel 11 with the material 12 inserted is arranged so as to fix the part of large diameter of the mandrel just beneath the rolls 1-1-1-n to roll the material 12. Thus the frictional force between the mandrel 11 and the material 12 after rolling is eliminated.
JP5497881A 1981-04-14 1981-04-14 Mandrel rolling mill and its rolling method Granted JPS57171506A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5497881A JPS57171506A (en) 1981-04-14 1981-04-14 Mandrel rolling mill and its rolling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5497881A JPS57171506A (en) 1981-04-14 1981-04-14 Mandrel rolling mill and its rolling method

Publications (2)

Publication Number Publication Date
JPS57171506A true JPS57171506A (en) 1982-10-22
JPH0116564B2 JPH0116564B2 (en) 1989-03-24

Family

ID=12985731

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5497881A Granted JPS57171506A (en) 1981-04-14 1981-04-14 Mandrel rolling mill and its rolling method

Country Status (1)

Country Link
JP (1) JPS57171506A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112588818A (en) * 2020-11-27 2021-04-02 中北大学 Manufacturing method of large rectangular section with inner rib belt guide rail

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH075604A (en) * 1993-06-18 1995-01-10 Konica Corp Silver halide photographic sensitive material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH075604A (en) * 1993-06-18 1995-01-10 Konica Corp Silver halide photographic sensitive material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112588818A (en) * 2020-11-27 2021-04-02 中北大学 Manufacturing method of large rectangular section with inner rib belt guide rail

Also Published As

Publication number Publication date
JPH0116564B2 (en) 1989-03-24

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