Title:
高耐食性カラー鋼材の製造方法
Document Type and Number:
Japanese Patent JP4639203
Kind Code:
B2
Abstract:
The present invention provides a method for producing a highly corrosion-resistant colored article made of steel, which are highly corrosion-resistant and has a variety of vivid surface colors, by subjecting the surface of a nitrided steel article to oxidizing heat treatment to form a colored oxide film layer. The method for producing a highly corrosion-resistant colored article made of steel includes the steps of (a) subjecting an article made of steel to nitriding and (b) subjecting the steel article thus treated in step (a) to surface processing such as abrasion, buffing, polishing or the like, and then to oxidizing heat treatment in an oxidizing atmosphere at 100 to 700° C. for 30 seconds to 100 hours, to form a colored oxide film layer on the surface of the steel article.
Inventors:
Yoon Hee Kim
Application Number:
JP2007013635A
Publication Date:
February 23, 2011
Filing Date:
January 24, 2007
Export Citation:
Assignee:
Yoon Hee Kim
International Classes:
C23C8/34; C21D1/06; C23C8/02; C23C8/14; C23C8/18; C23C8/26; C23C8/38; C23C8/80
Domestic Patent References:
| JP49058035A | ||||
| JP62161948A | ||||
| JP63238259A | ||||
| JP7166322A | ||||
| JP9184058A |
Attorney, Agent or Firm:
▲吉▼川 俊雄
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Katsu Sunagawa
Ryo Hashimoto
Tetsuya Kazama
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Katsu Sunagawa
Ryo Hashimoto
Tetsuya Kazama