| 发明名称 |
Method for coating spark plug threads with a polytetrafluoroethylene mixutre |
| 摘要 |
The invention relates to a method for coating spark plug threads with a polytetrafluoroethylene mixture comprising the steps of (a) bringing the spark plug to room temperature of 21° C. to 26° C. (70° F. to 79° F.); (b) mixing the polytetrafluoroethylene mixture thoroughly and filtering the material through a 100-mesh stainless steel screen (0.146 mm openings); (c) applying a minimum dry film thickness of 20 microns to 30 microns (0.8 mil to 1.2 mil) to the spark plug thread; and (d) baking the spark plug for 15 minutes at a metal temperature of 232° C. to 260° C. (450° F. to 500° F.). |
| 申请公布号 |
US9231384(B2) |
申请公布日期 |
2016.01.05 |
| 申请号 |
US201313946297 |
申请日期 |
2013.07.19 |
| 申请人 |
|
发明人 |
Stewart Kevin |
| 分类号 |
B05D3/02;H01T21/02;H01T21/04;H01T13/06;H01T13/08;B05D1/02 |
主分类号 |
B05D3/02 |
| 代理机构 |
Pergament Gilman & Cepeda LLP |
代理人 |
Pergament Gilman & Cepeda LLP |
| 主权项 |
1. A method for coating spark plug threads with a polytetrafluoroethylene mixture comprising the steps of:
(a) bringing the spark plug to room temperature of 21° C. to 26° C. (70° F. to 79° F.); (b) mixing the polytetrafluoroethylene mixture thoroughly and filtering the material through a 100-mesh stainless steel screen (0.146 mm openings); (c) applying a minimum dry film thickness of 20 microns to 30 microns (0.8 mil to 1.2 mil) to the spark plug thread; and (d) baking the spark plug for 15minutes at a metal temperature of 232° C. to 260° C. (450° F. to 500° F.). |
| 地址 |
Ottawa, Ontario CA |
