JPH0263668A - Manufacture of seamless pipe - Google Patents

Manufacture of seamless pipe

Info

Publication number
JPH0263668A
JPH0263668A JP21353888A JP21353888A JPH0263668A JP H0263668 A JPH0263668 A JP H0263668A JP 21353888 A JP21353888 A JP 21353888A JP 21353888 A JP21353888 A JP 21353888A JP H0263668 A JPH0263668 A JP H0263668A
Authority
JP
Japan
Prior art keywords
steel pipe
bringing
swaging
brought
cast piece
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
JP21353888A
Other languages
Japanese (ja)
Other versions
JPH0651216B2 (en
Inventor
Hidema Takeuchi
Shogo Matsumura
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
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 JP21353888A priority Critical patent/JPH0651216B2/en
Publication of JPH0263668A publication Critical patent/JPH0263668A/en
Publication of JPH0651216B2 publication Critical patent/JPH0651216B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To manufacture a seamless steel pipe without necessitating a piercing process by injecting a molten metal between a mold and a common steel pipe inserted into its inside and forming a hollow cast piece, bringing this case piece to swaging and bringing it to pickling.
CONSTITUTION: A common steel pipe 2 is inserted into a mold 3. By injecting a molten metal 6 for a seamless pipe between both of them 3, 2 and bringing the steel pipe 2 to cast-in, a hollow cast piece is formed. This hollow cast piece is brought to swaging, and generated scale oxide is brought to pickling. Also, it is desirable that the hollow cast piece is brought to hot working after a soaking heat treatment. In such a manner, since a piercing process of a stock is not required, when inclined rolling as hot swaging is executed, it is released from the constraint of an object material and a size, and when hot extrusion is executed, the drop of the yield which follows up piercing does not occur.
COPYRIGHT: (C)1990,JPO&Japio
JP21353888A 1988-08-30 1988-08-30 Seamless pipe manufacturing method Expired - Lifetime JPH0651216B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21353888A JPH0651216B2 (en) 1988-08-30 1988-08-30 Seamless pipe manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21353888A JPH0651216B2 (en) 1988-08-30 1988-08-30 Seamless pipe manufacturing method

Publications (2)

Publication Number Publication Date
JPH0263668A true JPH0263668A (en) 1990-03-02
JPH0651216B2 JPH0651216B2 (en) 1994-07-06

Family

ID=16640849

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21353888A Expired - Lifetime JPH0651216B2 (en) 1988-08-30 1988-08-30 Seamless pipe manufacturing method

Country Status (1)

Country Link
JP (1) JPH0651216B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1085734C (en) * 1998-01-22 2002-05-29 上海奉贤钢管厂 Process for treatment of precision bright seamless steel tube
CN104874761A (en) * 2015-02-04 2015-09-02 四川鑫鼎新材料有限公司 Metallurgy composite production method of oil-gas field pipeline steel pipe
CN112317551A (en) * 2020-09-29 2021-02-05 邯郸新兴特种管材有限公司 Method for forming L80-13 Cr martensitic stainless steel seamless steel tube

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1085734C (en) * 1998-01-22 2002-05-29 上海奉贤钢管厂 Process for treatment of precision bright seamless steel tube
CN104874761A (en) * 2015-02-04 2015-09-02 四川鑫鼎新材料有限公司 Metallurgy composite production method of oil-gas field pipeline steel pipe
CN112317551A (en) * 2020-09-29 2021-02-05 邯郸新兴特种管材有限公司 Method for forming L80-13 Cr martensitic stainless steel seamless steel tube

Also Published As

Publication number Publication date
JPH0651216B2 (en) 1994-07-06

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