Title:
METHOD FOR PRODUCING PLUG FOR HEAT FORMED PIPE
Document Type and Number:
WIPO Patent Application WO/2013/157312
Kind Code:
A1
Abstract:
There is provided a plug for a heat-formed pipe that includes a sprayed coating that is difficult to peel off. A method for producing a plug for a heat formed pipe according to an aspect of the present embodiment includes a step for preparing a plug having a sprayed coating including iron and an iron oxide formed on the surface, and a step for heat processing the plug at a temperature of 400 to 550 °C maintained for 5 to 60 minutes.
Inventors:
HIDAKA YASUYOSHI (JP)
HIGASHIDA YASUTO (JP)
SHIMODA KAZUHIRO (JP)
HIGASHIDA YASUTO (JP)
SHIMODA KAZUHIRO (JP)
Application Number:
PCT/JP2013/056063
Publication Date:
October 24, 2013
Filing Date:
March 06, 2013
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
B21B25/00; B21B19/04; C23C4/08; C23C4/10; C23C4/18
Domestic Patent References:
WO2009057471A1 | 2009-05-07 | |||
WO2010100968A1 | 2010-09-10 | |||
WO2009057471A1 | 2009-05-07 |
Foreign References:
JPH03277764A | 1991-12-09 | |||
JPS5913924B2 | 1984-04-02 |
Other References:
See also references of EP 2839891A4
Attorney, Agent or Firm:
UEBA Hidetoshi et al. (JP)
Hidetoshi Ueha (JP)
Hidetoshi Ueha (JP)
Download PDF: