JPS5417363A - Core meral for seamless steel pipe piercing machine or rolling mill - Google Patents

Core meral for seamless steel pipe piercing machine or rolling mill

Info

Publication number
JPS5417363A
JPS5417363A JP8223077A JP8223077A JPS5417363A JP S5417363 A JPS5417363 A JP S5417363A JP 8223077 A JP8223077 A JP 8223077A JP 8223077 A JP8223077 A JP 8223077A JP S5417363 A JPS5417363 A JP S5417363A
Authority
JP
Japan
Prior art keywords
core
meral
steel pipe
rolling mill
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.)
Granted
Application number
JP8223077A
Other languages
Japanese (ja)
Other versions
JPS5819363B2 (en
Inventor
Seiji Tanaka
Teru Onuki
Makoto Kato
Mitsuru Yano
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 JP8223077A priority Critical patent/JPS5819363B2/en
Publication of JPS5417363A publication Critical patent/JPS5417363A/en
Publication of JPS5819363B2 publication Critical patent/JPS5819363B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Other Surface Treatments For Metallic Materials (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

PURPOSE: To provide a core metal having superior heat intercepting property and peeling resistance by allowing part of an oxide layer of a predetermined thickness formed on the surface of the matrix of the core metal to penetrate into the grain boundaries of the matrix.
COPYRIGHT: (C)1979,JPO&Japio
JP8223077A 1977-07-09 1977-07-09 Core metal for seamless steel pipe drilling machines or rolling mills Expired JPS5819363B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8223077A JPS5819363B2 (en) 1977-07-09 1977-07-09 Core metal for seamless steel pipe drilling machines or rolling mills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8223077A JPS5819363B2 (en) 1977-07-09 1977-07-09 Core metal for seamless steel pipe drilling machines or rolling mills

Publications (2)

Publication Number Publication Date
JPS5417363A true JPS5417363A (en) 1979-02-08
JPS5819363B2 JPS5819363B2 (en) 1983-04-18

Family

ID=13768596

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8223077A Expired JPS5819363B2 (en) 1977-07-09 1977-07-09 Core metal for seamless steel pipe drilling machines or rolling mills

Country Status (1)

Country Link
JP (1) JPS5819363B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5662922A (en) * 1979-10-22 1981-05-29 Shinhoukoku Seitetsu Kk Heat treating method of parts to be slided for plastic working apparatus
JPS58221284A (en) * 1982-06-18 1983-12-22 Mitsubishi Heavy Ind Ltd Roll for preventing burning
JPS5977203A (en) * 1982-07-08 1984-05-02 バブコツク日立株式会社 Steam generator
WO2011107214A1 (en) * 2010-03-02 2011-09-09 Sms Meer Gmbh Hot work tool and method for producing same
US8065901B2 (en) * 2006-03-28 2011-11-29 Sumitomo Metal Industries, Ltd. Mandrel bar for high-alloy rolling, method for surface treating a mandrel bar, method for producing mandrel bar, and method for operating seamless pipe mill
EP2111933B1 (en) 2007-02-05 2015-04-08 Nippon Steel & Sumitomo Metal Corporation Process for producing plug for use in piercing/rolling raw metallic material, process for producing metallic tube, and plug for use in piercing/rolling raw metallic material

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5662922A (en) * 1979-10-22 1981-05-29 Shinhoukoku Seitetsu Kk Heat treating method of parts to be slided for plastic working apparatus
JPS599628B2 (en) * 1979-10-22 1984-03-03 新報国製鉄株式会社 Heat treatment method for sliding parts for plastic processing equipment
JPS58221284A (en) * 1982-06-18 1983-12-22 Mitsubishi Heavy Ind Ltd Roll for preventing burning
JPS5977203A (en) * 1982-07-08 1984-05-02 バブコツク日立株式会社 Steam generator
JPH0315083B2 (en) * 1982-07-08 1991-02-28 Babcock Hitachi Kk
US8065901B2 (en) * 2006-03-28 2011-11-29 Sumitomo Metal Industries, Ltd. Mandrel bar for high-alloy rolling, method for surface treating a mandrel bar, method for producing mandrel bar, and method for operating seamless pipe mill
EP2111933B1 (en) 2007-02-05 2015-04-08 Nippon Steel & Sumitomo Metal Corporation Process for producing plug for use in piercing/rolling raw metallic material, process for producing metallic tube, and plug for use in piercing/rolling raw metallic material
WO2011107214A1 (en) * 2010-03-02 2011-09-09 Sms Meer Gmbh Hot work tool and method for producing same
JP2013521128A (en) * 2010-03-02 2013-06-10 エスエムエス メーア 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 manufacturing a hot tool
RU2508173C1 (en) * 2010-03-02 2014-02-27 Смс Меер Гмбх Method of making tool for hot deformation

Also Published As

Publication number Publication date
JPS5819363B2 (en) 1983-04-18

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