Invention Grant
- Patent Title: Plated steel
-
Application No.: US16620599Application Date: 2018-06-15
-
Publication No.: US11078590B2Publication Date: 2021-08-03
- Inventor: Takashi Futaba , Kiyokazu Ishizuka , Fumio Shibao , Ikuo Kikuchi , Hidetoshi Shindo , Hiroaki Uramoto , Keita Katsumaru
- Applicant: NIPPON STEEL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NIPPON STEEL CORPORATION
- Current Assignee: NIPPON STEEL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JPJP2017-118795 20170616
- International Application: PCT/JP2018/022962 WO 20180615
- International Announcement: WO2018/230716 WO 20181220
- Main IPC: B32B15/01
- IPC: B32B15/01 ; B32B15/08 ; C22C28/00 ; C25D5/48 ; C25D3/22 ; C25D3/56 ; C25D5/36 ; C23C28/02 ; B32B15/04 ; B32B15/18 ; C23C30/00

Abstract:
A plated steel includes: a steel; a zinc based electroplated layer formed on a surface of the steel; and an organic resin coating layer formed on a surface of the zinc based electroplated layer, in which the surface of the zinc based electroplated layer has hairline extending in a predetermined direction, Ra (ML) measured on the surface of the zinc based electroplated layer is 0.10 to 0.70 μm, on the surface of the zinc based electroplated layer, a peak number PPI measured in a hairline orthogonal direction with a reference level of 10 μinch satisfies PPI≥350×Ra (MC) with respect to Ra (MC), on a surface of the organic resin coating layer, Ra (CC) satisfies Ra (CC)/Ra (CL)≥1.10 with respect to Ra (CL), and Ra (CC) satisfies Ra (CC)
Information query