提出一种含Ni、Si的适合钎焊合金白口铸铁的Cu基CuZnMn多元钎料 ,并对BCu5 0ZnMnNiSi钎料的熔化特性、钎焊工艺性能、钎料组织以及力学性能进行了研究。研究结果表明 ,与普通CuZn合金钎料比较 ,BCu5 0ZnMnNiSi钎料钎焊冶金特性优异 ,界面冶金结合致密 ,尽管钎料中含有多元合金元素 ,钎焊后钎缝仍有较好的塑性。 A Cu-based CuZnMn brazing filler metal containing brazing alloy white cast iron containing Ni and Si was proposed. The melting properties, brazing process performance, brazing filler metal and mechanical properties of BCu5 0ZnMnNiSi brazing filler metal were studied. The results show that BCu5 0ZnMnNiSi brazing filler metal is superior in brazing metallurgy and dense interface metallurgy compared with ordinary CuZn alloy brazing filler metal. Although the brazing filler metal contains multiple alloying elements, brazing filler metal still has better plasticity after brazing.