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铜添加了能提高机械性能和耐热性能的合金元素后,往往会使材料的导热和导电性能下降。到目前为止所使用的合金具有三类折衷的性能:第一类,导电性能比铜高75%,机械指标比铜高10～60%的合金,如Cu-Ag、Cu-Cd、Cu-Te、Cu-Cr、Cu-Zr、Cu-Cr-Zr等。这些合金也有良好的导热性能;第二类,导电性能比铜低50%,但机械指标至少比铜高出一倍的
Copper added to improve the mechanical properties and heat resistance of alloying elements, tend to make the material’s thermal conductivity and electrical conductivity decreased. The alloys used so far have three types of compromises: the first, the alloys with 75% higher conductivity than copper and 10-60% more mechanical properties than copper, such as Cu-Ag, Cu-Cd, Cu-Te , Cu-Cr, Cu-Zr, Cu-Cr-Zr and the like. These alloys also have good thermal conductivity; the second category, the conductivity is 50% lower than copper, but the mechanical indicators at least double the copper