发明授权
- 专利标题： Rotating brake member of braking device for vehicle and method for antirust treatment thereof
- 专利标题（中）： 车辆制动装置的旋转制动部件及其防锈处理方法
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申请号： US10258877申请日： 2002-10-30
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公开(公告)号： US06769518B2公开(公告)日： 2004-08-03
- 发明人: Hiroshi Uehara , Nobuaki Nagashima , Kosuke Hatasaki , Ryosuke Kawagoshi , Motoharu Murata
- 申请人： Hiroshi Uehara , Nobuaki Nagashima , Kosuke Hatasaki , Ryosuke Kawagoshi , Motoharu Murata
- 优先权： JP2001-047835 20010223
- 主分类号： E16D6512
- IPC分类号： E16D6512
摘要：
In a cast-iron disc brake rotor (1), each of an outer sliding surface (2a) and an inner sliding surface (3a) is covered with a phosphate coating (8) by electrolysis of a phosphate coating solution containing therein phosphate ions, zinc ions and nitrate ions. This makes it possible to attain dramatically improved rust preventive performance for the sliding surfaces (2a) and (3a). The phosphate coating (8) has a thickness of 1 to 10 &mgr;m, a mass of 4 to 35 g/m2 and a grain size of less than 50 &mgr;m. Preferably, the thickness of the phosphate coating (8) is adjusted to 2 to 8 &mgr;m.