低温鑞接に關する研究(第 1 報) : 鑞材の接着性について

概要

論文の詳細を見る
For an efficient joint, it is essential that the molten metal spreads sufficiently covering the surfaces of the metals to be joined. This is the reason why in the research work conducted on low temperature brazing, it is of special importance that a study is made on the wetting point and wettability of the brazing material. For this purpose an electrical measuring equipment was devised as shown in Fig. 1. This study is based on various data obtained on the wettability of different brazing materials such as silver, brass, German silver and G 185 (Eutectic Co. U. S. A.) brazing alloys which were tested on this equipment. The results obtained were as follows : 1. It has been definitely determined that the electro-resistance method can be used for measuring the wetting point of brazing materials. 2. This electro-resistance method is suitable for checking the quality of brazing materials and fluxes. 3. The silver brazing material was found most suitable for low temperature furnace brazing. 4. following points were determined regarding the wetting temperature during brazing : a. When the flow points of flux is lower than that of the brazing material, the wetting point will be above the melting point of the brazing material. b. When the flow point of flux is higher than that of the brazing material, the wetting point will be 10℃ above the flow point of flux.
社団法人溶接学会の論文
1953-05-01