Invention Grant
US08106553B2 Spindle motor component of hard disk driver with composite coating layer and composite coating method thereof
有权
具有复合涂层的硬盘驱动器的主轴电机部件及其复合涂覆方法
- Patent Title: Spindle motor component of hard disk driver with composite coating layer and composite coating method thereof
- Patent Title (中): 具有复合涂层的硬盘驱动器的主轴电机部件及其复合涂覆方法
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Application No.: US12665337Application Date: 2008-03-07
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Publication No.: US08106553B2Publication Date: 2012-01-31
- Inventor: Jinzhou He , Yan Dai
- Applicant: Jinzhou He , Yan Dai
- Applicant Address: CN Chengdu, Sichuan
- Assignee: Chengdu Galaxy Magnets Co., Ltd.
- Current Assignee: Chengdu Galaxy Magnets Co., Ltd.
- Current Assignee Address: CN Chengdu, Sichuan
- Agency: Mei & Mark LLP
- Priority: CN200710049351 20070622
- International Application: PCT/CN2008/070443 WO 20080307
- International Announcement: WO2009/000170 WO 20081231
- Main IPC: H02K5/10
- IPC: H02K5/10
Abstract:
A spindle motor component of hard disk with composite coating layer and a composite coating method hereof. The spindle motor component of hard disk includes a motor component base (1) and the composite coating layer which is coated on the base (1). The composite coating layer consists of an electrodepositing coating layer (2) and a spraying coating layer (3). The composite coating method includes a step of coating the electrodepositing coating layer (2) on the surface of the motor component base (1) and coating the spraying coating layer (3) on the electrodepositing coating layer (2), wherein the weight ratio of tin in the electrodepositing coating layer (2) is between 60 ppm to 300 ppm and the weight ratio of tin in the spraying coating layer (3) is no more than 50 ppm.
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