JPS62197237A - Manufacture of seamless steel pipe - Google Patents

Manufacture of seamless steel pipe

Info

Publication number
JPS62197237A
JPS62197237A JP3521986A JP3521986A JPS62197237A JP S62197237 A JPS62197237 A JP S62197237A JP 3521986 A JP3521986 A JP 3521986A JP 3521986 A JP3521986 A JP 3521986A JP S62197237 A JPS62197237 A JP S62197237A
Authority
JP
Japan
Prior art keywords
blank
hollow
pipe
steel pipe
seamless steel
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
JP3521986A
Other languages
Japanese (ja)
Inventor
Kazuo Watanabe
Ichiro Masuda
Hide Uchida
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP3521986A priority Critical patent/JPS62197237A/en
Publication of JPS62197237A publication Critical patent/JPS62197237A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce a production cost by forming a hollow blank pipe from a solid blank material through a punching press, then, inserting a mandrel to the blank pipe and forging.
CONSTITUTION: The hollow blank pipe is formed from the solid blank material by utilizing the punching press, then to deal with a generated thickness eccentricity, a rolling with a small rolling reduction or a blank rolling without a plug is performed to correct the thickness eccentricity. Furthermore, a mandrel is inserted in the hollow part of the hollow blank pipe to product a seamless steel pipe by forging. Moreover, the steel pipe is left as it is or cold worked by a pilger mill to obtain the product with a required dimension. In this way, because the product is obtained from a hardly workable material by utilizing a part of existing equipments efficiently, the production cost is largely reduced.
COPYRIGHT: (C)1987,JPO&Japio
JP3521986A 1986-02-21 1986-02-21 Manufacture of seamless steel pipe Pending JPS62197237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3521986A JPS62197237A (en) 1986-02-21 1986-02-21 Manufacture of seamless steel pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3521986A JPS62197237A (en) 1986-02-21 1986-02-21 Manufacture of seamless steel pipe

Publications (1)

Publication Number Publication Date
JPS62197237A true JPS62197237A (en) 1987-08-31

Family

ID=12435730

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3521986A Pending JPS62197237A (en) 1986-02-21 1986-02-21 Manufacture of seamless steel pipe

Country Status (1)

Country Link
JP (1) JPS62197237A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006045301A1 (en) * 2004-10-25 2006-05-04 V & M Deutschland Gmbh Method for production of a seamless hot-finished steel tube and device for carrying out said method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006045301A1 (en) * 2004-10-25 2006-05-04 V & M Deutschland Gmbh Method for production of a seamless hot-finished steel tube and device for carrying out said method
EA009851B1 (en) * 2004-10-25 2008-04-28 Ф Унд М Дойчланд Гмбх Method for production of a seamless steel tube and device for carrying out said method
JP2008517766A (en) * 2004-10-25 2008-05-29 ファウ・ウント・エム・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング Method for producing seamless hot-finished steel pipe and apparatus for carrying out this method
US8166792B2 (en) 2004-10-25 2012-05-01 V & M Deutschland Gmbh Method of making a seamless hot-finished steel pipe, and device for carrying out the method

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