JPS5732804A - Mandrel for punching and rolling - Google Patents
Mandrel for punching and rollingInfo
- Publication number
- JPS5732804A JPS5732804A JP10772580A JP10772580A JPS5732804A JP S5732804 A JPS5732804 A JP S5732804A JP 10772580 A JP10772580 A JP 10772580A JP 10772580 A JP10772580 A JP 10772580A JP S5732804 A JPS5732804 A JP S5732804A
- Authority
- JP
- Japan
- Prior art keywords
- mandrel
- coating
- carbon steel
- superior durability
- rolling
- 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
Abstract
PURPOSE: To obtain a mandrel of superior durability by coating carbon steel contg. C at specific % on the surface of a mandrel for rolling mills.
CONSTITUTION: Carbon steel which is more likely to form adhesive oxide scale during heat treatment or use than conventional mandrel materials is used for a surface coating material for the mandrel body, and the component range thereof is regulated to ≤0.4% C. Build-up welding is practicable as a coating method, and in short, any method may be used as far as it can provide the coating adhering closely to the mandrel surface. It is necessary to apply this surface coating in a position where damages occur in the mandrel. Thereby, the mandrel of superior durability is obtained and the mandrel of undesirable casting surfaces is sufficiently utilized.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10772580A JPS5947606B2 (en) | 1980-08-07 | 1980-08-07 | Core metal for drilling and rolling |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10772580A JPS5947606B2 (en) | 1980-08-07 | 1980-08-07 | Core metal for drilling and rolling |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5732804A true JPS5732804A (en) | 1982-02-22 |
JPS5947606B2 JPS5947606B2 (en) | 1984-11-20 |
Family
ID=14466360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10772580A Expired JPS5947606B2 (en) | 1980-08-07 | 1980-08-07 | Core metal for drilling and rolling |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5947606B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020062663A (en) * | 2018-10-18 | 2020-04-23 | 日本製鉄株式会社 | Piercer-plug and method of manufacturing the same |
-
1980
- 1980-08-07 JP JP10772580A patent/JPS5947606B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020062663A (en) * | 2018-10-18 | 2020-04-23 | 日本製鉄株式会社 | Piercer-plug and method of manufacturing the same |
Also Published As
Publication number | Publication date |
---|---|
JPS5947606B2 (en) | 1984-11-20 |
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