公开(公告)号：US20050178669A1

公开(公告)日：2005-08-18

申请号：US11060019

申请日：2005-02-16

Applicant: John Strubbe

Inventor： John Strubbe

IPC: B05D5/12 ,  C23C18/16 ,  C23C18/18 ,  C23C18/31 ,  C23C22/66 ,  C23F1/20 ,  C23G1/12 ,  C25D5/44 ,  H05K3/42 ,  H05K3/44 ,  H05K3/46

CPC classification number: C23C18/31 ,  C23C18/1653 ,  C23C18/1844 ,  C23C22/66 ,  C23F1/20 ,  C23G1/125 ,  C25D5/44 ,  H05K3/429 ,  H05K3/44 ,  H05K3/4641 ,  H05K2201/0347 ,  H05K2201/09554

Abstract: This invention is a zincating process of aluminum surfaces for subsequent plating in which the aluminum surfaces are cleaned, contacted with an acidic etching solution comprising a peroxygen compound, the acidic etching solution being substantially free of corrosive nitrate compounds, and contacting the aluminum surfaces with a zincate solution containing 6-60 g/l zinc and 100-500 g/l hydroxide ion. The acidic etching solution is substantially free of toxic inorganic fluoride compounds in order to simplify waste treatment. This invention may be understood with reference to FIG. 2, in particular Step 6.

Abstract translation: 本发明是用于后续电镀的铝表面的锌化工艺，其中铝表面被清洁，与包含过氧化合物的酸性蚀刻溶液接触，酸性蚀刻溶液基本上不含腐蚀性硝酸盐化合物，并使铝表面与 含有6-60g / l锌和100-500g / l氢氧化物离子的锌酸盐溶液。 酸性蚀刻溶液基本上不含有毒的无机氟化物，以简化废物处理。 参照图1可以理解本发明。 2，特别是步骤6。