鋁輪轂無氰鍍銅電鍍液及其電鍍方法
電鍍廠資訊:
專利(li)名(ming)稱:一(yi)種鋁輪轂(gu)無氰鍍(du)(du)(du)銅電鍍(du)(du)(du)液及(ji)其電鍍(du)(du)(du)方法
專利號:201110175044
專利申請人:上海(hai)杜行電(dian)鍍有限公司
本發(fa)(fa)明(ming)(ming)提供了一種鋁輪(lun)(lun)轂(gu)無氰鍍(du)(du)銅電(dian)(dian)鍍(du)(du)液及(ji)其(qi)(qi)電(dian)(dian)鍍(du)(du)方法。所述的鋁輪(lun)(lun)轂(gu)無氰鍍(du)(du)銅電(dian)(dian)鍍(du)(du)液,其(qi)(qi)特征在于,含(han)有180~220g/L硫(liu)酸銅、30~80mL/L硫(liu)酸、80~160ppm氯離子(zi)、5.0~10.0mL/L開缸劑(ji)U-M、0.4~0.6mL/L填平劑(ji)U-A、0.4~0.6mL/L光(guang)亮(liang)劑(ji)U-B和水。所述的電(dian)(dian)鍍(du)(du)方法包括(kuo)先(xian)將鋁輪(lun)(lun)轂(gu)工件浸入(ru)無氰沉鋅(xin)液中發(fa)(fa)生置換反(fan)應以在鋁輪(lun)(lun)轂(gu)工件的表面(mian)形(xing)成鋅(xin)層;再將其(qi)(qi)作(zuo)為陰極(ji)置入(ru)無氰鍍(du)(du)銅電(dian)(dian)鍍(du)(du)液中,以磷銅作(zuo)為陽(yang)極(ji),在鋁輪(lun)(lun)轂(gu)工件的表面(mian)鍍(du)(du)銅。本發(fa)(fa)明(ming)(ming)沉積(ji)速(su)度快,鍍(du)(du)層填平度高,鍍(du)(du)層不(bu)易產生針孔、內應力(li)低、富延展性,不(bu)會污染環(huan)境。
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