Invention Grant
- Patent Title: Zinc-based coated steel sheet having excellent anti-peeling property, frictional property, and anti-galling property and method of manufacturing the same
- Patent Title (中): 具有优异的抗剥离性，摩擦性和抗磨损性的锌基涂层钢板及其制造方法
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Application No.: US10492311Application Date: 2002-10-23
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Publication No.: US07160631B2Publication Date: 2007-01-09
- Inventor: Seiji Nakajima , Tomokatsu Katagiri , Yoichi Tobiyama , Chiaki Kato
- Applicant: Seiji Nakajima , Tomokatsu Katagiri , Yoichi Tobiyama , Chiaki Kato
- Applicant Address: JP
- Assignee: JFE Steel Corporation
- Current Assignee: JFE Steel Corporation
- Current Assignee Address: JP
- Agency: DLA Piper US LLP
- Priority: JP2001-328094 20011025; JP2001-328095 20011025; JP2001-328096 20011025
- International Application: PCT/JP02/10987 WO 20021023
- International Announcement: WO03/035931 WO 20030501
- Main IPC: B32B7/04
- IPC: B32B7/04 ; B32B5/16 ; B32B15/18 ; C23C22/05 ; C23C22/68
Abstract:
The present invention provides for a zinc-based coated steel sheet having a zinc-based coating layer and a lubricant film, which is formed on the zinc-based coating layer, containing zinc phosphate particles in an amount of 50 wt. % or more, and having substantially no reaction layer formed by reaction between the zinc-based coating and the zinc phosphate particles, and a method for the manufacture thereof. The zinc-based coated steel sheet according to the present invention has an excellent anti-peeling property, excellent frictional property, even in the non-lubricated condition which occurs at areas where the press oil film is broken, and excellent anti-galling property.
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