jesse862
第11楼2006/09/12
我在测试电子元件引脚时,碰到以下几种不确定用何种方法测试,请您帮忙注明一下,非常感谢!
1 Cu 47% Sn 23% Pb 16% Fe 14%
2 Zn 95% Cu 2% Cr1% Fe 0.8%
3. Sn 65% Si 18% Ca 11% Ni 2.5% Fe 2%
4. Sn 81% Cu 16% Fe 3%
5. Sn 76% Si 17% Pb 4% Cu 2%
6. Cu 60% Sn 21% Fe 18%
7. Cu 65% Fe 17% Sn 9%
8. Cu 38% Sn 30% Pb 11% Ni 11% Zn 8%
9. Sn 30% Si 29% Cu 26% Zn 15%
10. Sn 95% Cu 4% Fe 1%
11. Cu 49% Zn 36% Ni 13% Ag 1% Fe 0.5%
12. Sn 55% Cu 23% Pb 16% Fe 6%