Title:
表面処理鋼板、有機樹脂被覆鋼板、及びこれらを用いた容器
Document Type and Number:
Japanese Patent JP7074953
Kind Code:
B2
Abstract:
To provide a surface treated steel sheet capable of controlling generation of sulfidation black discoloration while considering stannous oxide and stannic oxide.SOLUTION: The surface treated steel sheet has a steel sheet, a tin plating layer formed on the steel sheet and a chemical coating formed on the tin plating layer and containing practically no chromium, and having current density ratio of current density I1 at a potential showing a reaction of stannous oxide (SnO) after subjected to a heat treatment equal to coating galling to a sum of I1 and current density I2 at potential showing a reaction of stannic oxide (SnO2), (I1+I2), of less than 0.36 in a measurement using an anode polarization.SELECTED DRAWING: Figure 1
Inventors:
Naomi Taguchi
Kenji Ryoda
Matsuhiko Masahiko
Miwa Uchikawa
Keisuke Yoshida
Kenji Ryoda
Matsuhiko Masahiko
Miwa Uchikawa
Keisuke Yoshida
Application Number:
JP2021019063A
Publication Date:
May 25, 2022
Filing Date:
February 09, 2021
Export Citation:
Assignee:
TOYO KOHAN CO.,LTD.
International Classes:
C25D5/26; B32B15/01; B65D1/00; B65D8/00; C23C28/00; C25D5/50
Domestic Patent References:
| JP2018035394A |
Foreign References:
| WO2016121275A1 |
Other References:
乾 恒夫ほか,ぶりきの硫化黒変の生成機構,鉄と鋼,1982年,第7号,pp. 850-857
Attorney, Agent or Firm:
Patent business corporation Ota patent office
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