Title:
PLATED STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2023/068303
Kind Code:
A1
Abstract:
Provided is a plated steel sheet having excellent texture visibility and scratch resistance. A protective film 11 of a plated steel sheet 1 is formed on a plating layer 10 having a texture T1 on the surface thereof. The protective film 11 contains a binder resin 31 and a plurality of resin particles 32. The surface of the protective film 11 includes a flat portion 11F and a plurality of protruding portions 11C formed by some of the resin particles 32 protruding from the flat portion 11F. The average film thickness d of the protective film 11 is 10.0 μｍ or less. A total area ratio S of the plurality of protruding portions in plan view of the surface of the protective film 11 is 10.0% or less. F1 of equation (1) is 10.0 or greater, and F2 of equation (2) is 0.7-3.0. (1): F1 = D × S; (2): F2 = D/d. In the equations, an average particle size D (μm) of the resin particles 32 is substituted for "D", the total area ratio S (%) of the protruding portions 11C is substituted for "S", and the average film thickness d (μm) of the protective film 11 is substituted for "d".
Inventors:
FUTABA TAKASHI (JP)
Application Number:
PCT/JP2022/038958
Publication Date:
April 27, 2023
Filing Date:
October 19, 2022
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C23C28/00; B32B15/08
Domestic Patent References:
| WO2018230716A1 | 2018-12-20 | |||
| WO2019194229A1 | 2019-10-10 | |||
| WO2018164276A1 | 2018-09-13 |
Foreign References:
| JP2019119203A | 2019-07-22 |
Attorney, Agent or Firm:
ASCEND IP LAW FIRM (JP)
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