| 发明名称 |
METHOD FOR FORMING COATING FILM ON PISTON OF INTERNAL COMBUSTION ENGINE AND COATING FILM FORMING APPARATUS |
| 摘要 |
Disclosed is a method for forming a double-layer, solid lubricant coating film on an external surface of a skirt portion of a piston in an internal combustion engine. This method includes the steps of (a) applying on the external surface of the skirt portion a solid lubricant composition containing a dark-color component, thereby forming thereon a precursor film; and (b) solidifying the precursor film by an irradiation with a laser beam from a laser oscillator, while moving at least one of the piston and the laser oscillator. It is possible by this method to form the double-layer, solid lubricant coating film with an extremely short period of time. |
| 申请公布号 |
US2014255617(A1) |
申请公布日期 |
2014.09.11 |
| 申请号 |
US201414201094 |
申请日期 |
2014.03.07 |
| 申请人 |
Hitachi Automotive Systems, Ltd. |
发明人 |
SASAKI Masato |
| 分类号 |
F02F3/10 |
主分类号 |
F02F3/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for forming a double-layer, solid lubricant coating film on an external surface of a skirt portion of a piston in an internal combustion engine, comprising the steps of:
(a) applying on the external surface of the skirt portion a solid lubricant composition containing a dark-color component, thereby forming thereon a precursor film; and (b) solidifying the precursor film by an irradiation with a laser beam from a laser oscillator, while moving at least one of the piston and the laser oscillator. |
| 地址 |
Hitachinaka-shi JP |
