JPS5417363A - Core meral for seamless steel pipe piercing machine or rolling mill - Google Patents
Core meral for seamless steel pipe piercing machine or rolling millInfo
- 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
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
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)
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 |
-
1977
- 1977-07-09 JP JP8223077A patent/JPS5819363B2/en not_active Expired
Cited By (10)
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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