Title:
AUSTENITIC STAINLESS STEEL SHEET EXCELLENT IN ADHESION WITH INORGANIC COATING FILM AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3664537
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To produce a stainless steel sheet having a surface from high in adhesion with an inorganic coating film by continuous production.
SOLUTION: An austenitic stainless steel sheet in which spherical pits are compactly formed on the surface of the steel sheet, the average diameter D (μm) of the opening parts of the pits and the average depth H (μm) of the pits satisfy the relations in the following inequalities I and II and excellent in adhesion with an inorganic coating film is provided: the inequality I: 1≤D≤5 and the inequality II: D/3≤H≤D/2. This stainless steel can be produced by subjecting a stainless steel sheet to alternate current electrolysis of 1 to 10Hz in which current density at the time of anode electrolysis is regulated to 1.0 to 10.0kA/m2, and current density at the time of cathode electrolysis is regulated to 0.5 to 3.0kA/m2 for 10 to 120sec in an aq. soln. of ferric chloride contg. Fe3+ by 30 to 120g/L.
Inventors:
Takeshi Shimizu
Masashi Hiraoka
Masao Nagao
Tatano Masayoshi
Yukio Uchida
Masashi Hiraoka
Masao Nagao
Tatano Masayoshi
Yukio Uchida
Application Number:
JP8052896A
Publication Date:
June 29, 2005
Filing Date:
March 11, 1996
Export Citation:
Assignee:
Nisshin Steel Co., Ltd.
International Classes:
C23D3/00; C23D5/00; C25F3/06; (IPC1-7): C25F3/06
Domestic Patent References:
| JP6136600A | ||||
| JP56077400A |
Attorney, Agent or Firm:
Kenji Wada
Koji Hagiwara
Koji Hagiwara