JPS5789459A - Low magnetic forming roll with resistance to wear and thermal impulse - Google Patents
Low magnetic forming roll with resistance to wear and thermal impulseInfo
- Publication number
- JPS5789459A JPS5789459A JP16359380A JP16359380A JPS5789459A JP S5789459 A JPS5789459 A JP S5789459A JP 16359380 A JP16359380 A JP 16359380A JP 16359380 A JP16359380 A JP 16359380A JP S5789459 A JPS5789459 A JP S5789459A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- quenching
- cooling
- steel
- heating
- 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
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
PURPOSE: To obtain a forming roll improved in the energy effect, line rate and roll performance, by carring out suitable heat treatment on a high C and high Cr steel for a roll to reduce the magnetism.
CONSTITUTION: A high C and high Cr steel is used for a roll, and it is subjected to suitable high temperature hardening to permit residual austenite of 20% or more to remain. Thus the magnetism is reduced as a whole, and therefore under the influence of high frequency magnetic field for heating a joining section of a steel pipe from a steel sheet, the elevation of temperature and energy loss due to the induction of the roll itself can be decreased. Generally, the quenching will be carried at about 1,080W1,250°C, and the cooling is carried out by controlled quenching such as cooling in oil, hot bath quenching or the like, but the risk of decomposition of the austenite during cooling is less due to the austenite stabilized by heating at high temperature. The aimed amount of residual austenite can be provided by controlling the heating temperature of quenching, the retention of the time and the cooling rate. Since said decomposition is accompanied when tempered, the tempering should be about 500°C or below, but the change in the hardness due to it is not significant.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16359380A JPS5789459A (en) | 1980-11-20 | 1980-11-20 | Low magnetic forming roll with resistance to wear and thermal impulse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16359380A JPS5789459A (en) | 1980-11-20 | 1980-11-20 | Low magnetic forming roll with resistance to wear and thermal impulse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5789459A true JPS5789459A (en) | 1982-06-03 |
| JPH0115569B2 JPH0115569B2 (en) | 1989-03-17 |
Family
ID=15776861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16359380A Granted JPS5789459A (en) | 1980-11-20 | 1980-11-20 | Low magnetic forming roll with resistance to wear and thermal impulse |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5789459A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5865385A (en) * | 1997-02-21 | 1999-02-02 | Arnett; Charles R. | Comminuting media comprising martensitic/austenitic steel containing retained work-transformable austenite |
| CN103316910A (en) * | 2012-03-21 | 2013-09-25 | 宝山钢铁股份有限公司 | Cr12MoV flat steel rolling method |
| CN103909092A (en) * | 2014-03-24 | 2014-07-09 | 湖北时力模具材料有限公司 | One-fire rolling method for Cr12MoV cold working die flat steel |
-
1980
- 1980-11-20 JP JP16359380A patent/JPS5789459A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5865385A (en) * | 1997-02-21 | 1999-02-02 | Arnett; Charles R. | Comminuting media comprising martensitic/austenitic steel containing retained work-transformable austenite |
| CN103316910A (en) * | 2012-03-21 | 2013-09-25 | 宝山钢铁股份有限公司 | Cr12MoV flat steel rolling method |
| CN103909092A (en) * | 2014-03-24 | 2014-07-09 | 湖北时力模具材料有限公司 | One-fire rolling method for Cr12MoV cold working die flat steel |
| CN103909092B (en) * | 2014-03-24 | 2015-11-25 | 湖北时力模具材料有限公司 | A kind of heating once and rolling method of Cr12MoV cold-work die band steel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0115569B2 (en) | 1989-03-17 |
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