鋁輪轂無氰鍍銅電鍍液及電鍍法
深圳表(biao)面(mian)處理網:本發(fa)(fa)(fa)明(ming)提供了一種鋁(lv)輪(lun)(lun)轂(gu)無(wu)氰(qing)(qing)鍍(du)(du)銅(tong)電(dian)鍍(du)(du)液及其(qi)電(dian)鍍(du)(du)方(fang)法。所述的(de)(de)鋁(lv)輪(lun)(lun)轂(gu)無(wu)氰(qing)(qing)鍍(du)(du)銅(tong)電(dian)鍍(du)(du)液,其(qi)特征在于,含有180~220g/L硫酸(suan)銅(tong)、30~80mL/L硫酸(suan)、80~160ppm氯(lv)離子、5.0~10.0mL/L開缸(gang)劑(ji)U-M、0.4~0.6mL/L填(tian)平(ping)劑(ji)U-A、0.4~0.6mL/L光亮劑(ji)U-B和水。所述的(de)(de)電(dian)鍍(du)(du)方(fang)法包括(kuo)先將鋁(lv)輪(lun)(lun)轂(gu)工(gong)件(jian)(jian)浸(jin)入無(wu)氰(qing)(qing)沉鋅液中(zhong)發(fa)(fa)(fa)生置(zhi)換反應(ying)以在鋁(lv)輪(lun)(lun)轂(gu)工(gong)件(jian)(jian)的(de)(de)表(biao)面(mian)形(xing)成鋅層(ceng);再將其(qi)作為陰極置(zhi)入無(wu)氰(qing)(qing)鍍(du)(du)銅(tong)電(dian)鍍(du)(du)液中(zhong),以磷銅(tong)作為陽極,在鋁(lv)輪(lun)(lun)轂(gu)工(gong)件(jian)(jian)的(de)(de)表(biao)面(mian)鍍(du)(du)銅(tong)。本發(fa)(fa)(fa)明(ming)沉積速度(du)快,鍍(du)(du)層(ceng)填(tian)平(ping)度(du)高,鍍(du)(du)層(ceng)不易產(chan)生針孔、內應(ying)力低(di)、富(fu)延展(zhan)性,不會污染環境。