| 摘要 |
A lead-free welding material and method for preparing scaling powder thereof, the lead-free welding material comprising a body material and scaling powder; the body material comprises, by mass percentage, 8-12% of zinc, 0.5-2% of manganese and an excess amount of tin; the scaling powder comprises organic ingredient and the body material processed via a gas atomization technique, namely by mass percentage, 2% of organic ingredients and 98% of metal powers; the mass percentage of the body material to the scaling powder is 80% to 20%. The raw material employed by the lead-free welding material has a low cost, a low request for devices, and reduces a production cost, and the lead-free material is utilized to solve technical bottlenecks of grain size, distribution, shape, oxidation level, uniformity and the like existing in the preparation process of tin-zinc-manganese lead-free alloy material, thus solving the problem relating to a performance index of an electric industrial product. |
