電気接点の研摩に関する研究

概要

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Mechanical polishing is recently being required for the reason of the appearance and wide-spread use of sintered alloy contacts. As the mechanical polisher, we designed a machine based on lapping, and made experiments on the sintered Ag-W alloy contacts. Furthermore, we tried to find a solution which might, in future, help to make clear the mechanism of plane contact of metal pieces. Then, substituting the measured values of their contact resistance, roughness and load into a theoretical equation based on an assumed contact condition, we calculated both the effective contact points and the true contact area. Upon studying the relations that exist among the above mentioned figures, we found that, the increase of effective contact points which is due to the high degree of surface finish, had especially a great deal of effects on both the decrease of the contact resistance and the other performances of contacts.
社団法人日本機械学会の論文
1955-06-25