Title:
FERRITIC STAINLESS STEEL SHEET EXCELLENT IN ADHSION WITH COATING FILM AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3664538
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a ferritic stainless steel sheet having a surface form high in adhesion with a coating film by continuous production.
SOLUTION: This ferritic stainless steel sheet excellent in adhesion with a coating film is the one in which pits are closely formed on the surface of the steel sheet, and the average diameter D (μm) of the opening parts of these pits and the average depth H (μm) of the pits satisfy the relations in the following inequalities I and II: the inequality I: 1≤D≤5 and the inequality II: D/3≤H≤D/2. The stainless steel sheet can be produced by subjecting a stainless steel to alternating electrolysis of 1 to 10Hz in which the current density in the case of anode electrolysis to 1.0 to 10.0kA/m2 and that in the case of cathode electrolysis to 0.1 to 3.0kA/m2 for 10 to 120sec in an aq. soln. of ferric chloride contg. Fe3+ by 1 to 50g/L.
Inventors:
Takeshi Shimizu
Masashi Hiraoka
Masao Nagao
Tatano Masayoshi
Yukio Uchida
Masashi Hiraoka
Masao Nagao
Tatano Masayoshi
Yukio Uchida
Application Number:
JP8997296A
Publication Date:
June 29, 2005
Filing Date:
March 21, 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