Cobalt-tin alloy coating on aluminum by chemical conversion,申请号US19980050215-传众专利搜索

Cobalt-tin alloy coating on aluminum by chemical conversion

申请公布号：US5911809(A)

申请号：US19980050215

申请日期：1998.03.30

申请公布日期：1999.06.15

申请人：

FORD MOTOR COMPANY

发明人：CORDY, CARL EDWARD

分类号：C23C22/66;F04B27/08;F04B27/10;(IPC1-7):F01B3/00

主分类号：C23C22/66

摘要：A swash plate type compressor having a cylinder block with cylinder bores disposed parallel to the axis of the cylinder block. A rotary shaft rotatably mounted within the cylinder block carries an aluminum swash plate. The swash plate is fixed in the rotary shaft and has two facial surfaces and an end surface. The swash plate has a coating preferably between 0.8 to 2.5 microns, of a tin/cobalt coating of at least 0.2 wt% cobalt and the balance being tin. A piston reciprocally fitted within the cylinder bore contains shoes which slideably intervene between the piston and the swash plate facial surfaces and reciprocate the piston and the swash plate facial surfaces and reciprocate the pistons by rotation of the swash plate. The coating on the swash plate permits the use of low silicon alloy aluminum without the need of metal plating or high finish polishing.