JPS53119770A - Piercing method in press-piercing mill - Google Patents

Piercing method in press-piercing mill

Info

Publication number
JPS53119770A
JPS53119770A JP3583777A JP3583777A JPS53119770A JP S53119770 A JPS53119770 A JP S53119770A JP 3583777 A JP3583777 A JP 3583777A JP 3583777 A JP3583777 A JP 3583777A JP S53119770 A JPS53119770 A JP S53119770A
Authority
JP
Japan
Prior art keywords
piercing
press
blank
mill
prevent
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
JP3583777A
Other languages
Japanese (ja)
Other versions
JPS5536402B2 (en
Inventor
Takeo Yamada
Chihiro Hayashi
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 JP3583777A priority Critical patent/JPS53119770A/en
Publication of JPS53119770A publication Critical patent/JPS53119770A/en
Publication of JPS5536402B2 publication Critical patent/JPS5536402B2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

PURPOSE:To prevent the generation of cracks in the outer surface of the pipe-blank, and to prevent the thickness-deviation due to the under-fill, etc., by keeping the piercing ratio, which is represented by the elongation, and the circumferential speed at the lead of the plug and at the groove-bottom of the rolling roll, in respectively specified range, in the case that the hollow pipe-blank is prepared from the square sectioned billet, depending on the piercing-forming work.
JP3583777A 1977-03-29 1977-03-29 Piercing method in press-piercing mill Granted JPS53119770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3583777A JPS53119770A (en) 1977-03-29 1977-03-29 Piercing method in press-piercing mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3583777A JPS53119770A (en) 1977-03-29 1977-03-29 Piercing method in press-piercing mill

Publications (2)

Publication Number Publication Date
JPS53119770A true JPS53119770A (en) 1978-10-19
JPS5536402B2 JPS5536402B2 (en) 1980-09-20

Family

ID=12453077

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3583777A Granted JPS53119770A (en) 1977-03-29 1977-03-29 Piercing method in press-piercing mill

Country Status (1)

Country Link
JP (1) JPS53119770A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6054207A (en) * 1983-09-06 1985-03-28 Nippon Steel Corp Rolling method of seamless steel pipe
JPS6054206A (en) * 1983-09-06 1985-03-28 Nippon Steel Corp Rolling method of seamless steel pipe
JPS6054204A (en) * 1983-09-06 1985-03-28 Nippon Steel Corp Rolling method of seamless steel pipe
JPS6054205A (en) * 1983-09-06 1985-03-28 Nippon Steel Corp Rolling method of seamless steel pipe
JPH02220702A (en) * 1989-02-20 1990-09-03 Nippon Steel Corp Method for preventing over-filing of press roll piercer
CN106077097A (en) * 2016-06-02 2016-11-09 天津钢管集团股份有限公司 Improve structure and the manufacture method of perforation unit top surface property

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57134770U (en) * 1981-02-16 1982-08-23
JPS582779U (en) * 1981-06-25 1983-01-08 アイワ株式会社 Automatic record size detection device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6054207A (en) * 1983-09-06 1985-03-28 Nippon Steel Corp Rolling method of seamless steel pipe
JPS6054206A (en) * 1983-09-06 1985-03-28 Nippon Steel Corp Rolling method of seamless steel pipe
JPS6054204A (en) * 1983-09-06 1985-03-28 Nippon Steel Corp Rolling method of seamless steel pipe
JPS6054205A (en) * 1983-09-06 1985-03-28 Nippon Steel Corp Rolling method of seamless steel pipe
JPH0479723B2 (en) * 1983-09-06 1992-12-16 Nippon Steel Corp
JPH0479724B2 (en) * 1983-09-06 1992-12-16 Nippon Steel Corp
JPH02220702A (en) * 1989-02-20 1990-09-03 Nippon Steel Corp Method for preventing over-filing of press roll piercer
CN106077097A (en) * 2016-06-02 2016-11-09 天津钢管集团股份有限公司 Improve structure and the manufacture method of perforation unit top surface property

Also Published As

Publication number Publication date
JPS5536402B2 (en) 1980-09-20

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