JPS5732804A - Mandrel for punching and rolling - Google Patents

Mandrel for punching and rolling

Info

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
Application number
JP10772580A
Other languages
Japanese (ja)
Other versions
JPS5947606B2 (en
Inventor
Yoshiki Kamemura
Manabu Tamura
Masao Handa
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP10772580A priority Critical patent/JPS5947606B2/en
Publication of JPS5732804A publication Critical patent/JPS5732804A/en
Publication of JPS5947606B2 publication Critical patent/JPS5947606B2/en
Expired legal-status Critical Current

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
JP10772580A 1980-08-07 1980-08-07 Core metal for drilling and rolling Expired JPS5947606B2 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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