Title:
PLUG USED IN PIERCING MACHINE AND PLUG REGENERATION METHOD
Document Type and Number:
WIPO Patent Application WO/2013/153878
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a plug which is used in a piercing machine that pierce-rolls a billet, and for which the number of uses of said plug can be improved, and to provide a method for regenerating a plug. This plug (10) is used in a piercing machine (30) that pierce-rolls a billet (36). The plug (10) is equipped with a main body part (18), a cylindrical part (20), and a sprayed coating (16). The maximum diameter of the main body part (18) is at the rear end. The cylindrical part (20) has the same diameter as the rear end of the main body part (18), and extends from the rear end of the main body part (18). The sprayed coating (16) is formed on the surfaces of the main body part (18) and the cylindrical part (20).
Inventors:
HIGASHIDA YASUTO (JP)
HIDAKA YASUYOSHI (JP)
SHIMODA KAZUHIRO (JP)
TATEBAYASHI YOSUKE (JP)
HIDAKA YASUYOSHI (JP)
SHIMODA KAZUHIRO (JP)
TATEBAYASHI YOSUKE (JP)
Application Number:
PCT/JP2013/055854
Publication Date:
October 17, 2013
Filing Date:
March 04, 2013
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
B21B19/04; B21B25/00
Foreign References:
| JP2010227999A | 2010-10-14 | |||
| JPH09276908A | 1997-10-28 | |||
| JPS6213294A | 1987-01-22 | |||
| JPH048498B2 | 1992-02-17 | |||
| JPH0474848A | 1992-03-10 | |||
| JPH04270003A | 1992-09-25 | |||
| JPS647147B2 | 1989-02-07 | |||
| JPH10180315A | 1998-07-07 | |||
| JP4279350B1 | 2009-06-17 | |||
| JP2976858B2 | 1999-11-10 |
Other References:
See also references of EP 2837434A4
Attorney, Agent or Firm:
UEBA Hidetoshi et al. (JP)
Hidetoshi Ueha (JP)
Hidetoshi Ueha (JP)
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