はんだ積層りん青銅板の接触性能

概要

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The development of the low-priced and marti-fanctional spring, which has the abilities of contact and solderability, is desired. Then, we carried out a trial production of solder-coated phospor bronzeplates. In this paper, the contactability, solderability and creep-performance of these materials are discussed. And the results are as follows.(1) The solder-coated phosphor bronze plates were extremely superior to the balk phosphor bronze plate, in the contactability and solderability. And the solder-coated phosphor bronze plates hardly changed in these ability, after damp heat test (40°C, 90% R. H.).(2) The contactability and solderability were tested on a few chemical components of coated solder. Then, 65/35 tin/lead solder was superior to 90/10 tin/lead solder in the stability of those abilities.(3) The solder-coated phosphor bronze plates had larger index of creepdeformation as compared with the balk phosphor bronze plate.(4) The solder-coated phosphor bronze plates will be useful to the materials for use of contactable springs.
日本ばね学会の論文