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研究成功一种新型的铜—锰—锌—硅系钎料。这种钎料适合于钢件和硬质合金等材料的钎焊,文中阐述了钎料合金体系选择及各组元配比拟定的理论依据,通过钎料性能和接头性能的实际试验进一步调整和确定钎料合金各成分的含量。这种钎料与黄铜料相比,具有一些明显的优点,以此钎料钎焊接头的强度远高于黄铜钎料钎焊接头的强度,具有特高的抗冲击性能,而合金的轧制性能亦良好;由于这种钎料熔点较低(825.5℃),所以能降低钎焊温度,减少钎焊能耗,节省钎焊时间,新钎料有效地降低钎焊应力,促使焊件变形小;而且,钎焊金属具有较细的晶粒,因此,提高了产品的质量;同时,由于钎焊温度降低及钎料的含锌量较低,促使钎焊时环境污染大大得到改善。
A new type of copper-manganese-zinc-silicon solder has been successfully studied. This brazing material is suitable for the brazing of steels and cemented carbides and other materials. In this paper, the theoretical basis of the choice of brazing alloy system and the formulation of each component ratio are elaborated. The actual test of the brazing material properties and the joint properties are further adjusted Determine the solder alloy content of each component. Compared with the brass material, the brazing filler metal has some obvious advantages, so the strength of the brazing filler metal brazing filler is much higher than the strength of the brazing filler metal of the brazing filler metal, so that the alloy has the extremely high impact resistance, The rolling performance is also good. Due to its low melting point (825.5 ℃), the brazing temperature can be reduced, the brazing energy consumption can be reduced and the brazing time can be saved. The brazing filler metal effectively reduces the brazing stress, The deformation is small; moreover, the brazing metal has finer grains, thereby improving the quality of the product; at the same time, the environment pollution during soldering is greatly improved due to the lower brazing temperature and the lower zinc content of the brazing filler metal.