| 摘要 |
PROBLEM TO BE SOLVED: To provide a silver alloy to which sulfurization resistance and oxidation resistance are added for overcoming conventional problems where oxidation coating is easy to occur under a condition of a contact material, chemicals such as a conductive member (sulfuric acid-based), heating or heating of a part of electrical resistance by flowing electricity, a conventional silver alloy hardly being sulfurized or oxidized is expensive because metal is platinum, palladium, gold or the like, discoloration cannot be avoided with sulfurization or oxidation in long term use and storage because discoloration of the silver alloy is proceeded in time course, fire is generated by heat of buff polishing in a process in working product and the silver alloy has black discoloration and cyan is used for removal it.SOLUTION: There is provided a silver alloy consisting of Cu of 0.005 to 2.5wt%, Sb of 0.01 to 4.9wt%, Bi of 0.001 to 2.0wt%, Sn of 1.0 to 49.3wt% and the balance Ag.SELECTED DRAWING: None |
