| 简介 |
PROBLEM TO BE SOLVED : To provide an improved Rh-Re alloy plating bath in an electrolytic rhodium plating applied on a contact part to aim the improvement of durability to prevent the damage and the deterioration of the contact surface due to the oxidation caused by the spark on a contact point which necessitates high sensitive electroconductivity and suffers radical spark due to the repeated on-off and an alloy plating film.
SOLUTION : The Rh-Re alloy plating thin film having the alloy ratio Rh : Re of 1.0 : (0.1-1.0) and 0.1-10.0 μ film thickness using a plating bath having a Rh-Re alloy composition prepared by adding Re to a Rh plating bath, is formed.
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