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在无线电、仪表、电机、电器工业中,广泛应用着银钎焊工艺,由于银钎焊的接头强度高,导电性能好,抗腐蚀能力强等优点,在各种钎焊方法中,银钎焊占有很重要的地位。但是,目前国内外大量应用含镉银钎料,虽然有优良的综合性能,但是这种钎料在钎焊过程中,产生挥发性毒素气体,严重污染工作环境,在缺乏实际的通风除尘措施的条件下,会危害工人身体健康。为此,研究和应用性能与含镉钎料相当的无镉银钎料乃是当前焊接生产中的一个重要课题。
In the radio, instrumentation, electrical, electrical appliances industry, widely used in silver brazing process, due to silver brazing joint strength, good electrical conductivity, corrosion resistance and other advantages, in a variety of brazing methods, silver brazing Occupy a very important position. However, at present, a large amount of domestic and foreign cadmium silver brazing filler metal, although there are excellent overall performance, but this brazing in the brazing process, volatile toxins gas, serious pollution of the working environment, the lack of actual ventilation and dust removal measures Under the conditions, will endanger the health of workers. Therefore, it is an important issue in the current welding production to research and apply cadmium-free silver brazing filler metal with equivalent performance to cadmium-containing solder.