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电积锌工业中,目前广泛使用Pb-(0.8~ 1.0) %Ag合金作为阳极,其优势地位尚无法完全被取代,Al,Ca,Sr,RE等元素能较好地提升铅银合金的综合性能,并且能弥补银的损失.分别在ZnSO4-H2SO4和ZnSO4-MnSO4-H2 SO4体系中研究了Pb-0.15%Ag,Pb-0.15%Ag-0.11%Al,Pb-1.00%Ag,Pb-0.30%Ag-0.06 %Ca-0.05%Ce的阳极腐蚀速率以及后3种阳极在ZnSO4-H2 SO4体系极化48 h阳极氧化膜的形貌和组成.结果表明:在以上2种体系中Pb-0.15%Ag-0.11%Al的耐蚀性均要好于Pb-0.15%Ag,但较Pb-1.00%Ag,Pb-0.30%Ag-0.06 %Ca-0.05%Ce合金的差.

参考文献

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