| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a sliding material satisfying both of hardness and separation resistance. <P>SOLUTION: A shoe 76 of a compressor is prepared by forming a Ni-P electroless nickel plating layer on an aluminum alloy base material, and further forming a Ni-P-B electroless nickel plating layer on the Ni-P plating layer. The Ni-P-B plating layer has a content of phosphor of 0.5-5.0 wt.%, and a content of boron of 0.05-0.2 wt.%, and is free from heat treatment. In a scratch test, crackings are not caused from scratched marks 210, 212 with respect to a test piece 200 of the Ni-P-B plating layer free from heat treatment, but the crackings 220, 222 are caused in a state of being extended from the scratched marks 214, 216 on a surface of a test piece 202 on which heat treatment is performed. Without performing heat treatment, the impairing of the deforming performance of the plating layer can be prevented, and a hard layer 152 is hardly separated even when the scratched mark is caused by the intrusion of a foreign matter between the shoe and a piston or a swash plate. <P>COPYRIGHT: (C)2003,JPO</p> |
