Low temperature bonding of LD31 aluminum alloys by electric brush plating Ni and Cu coatings  

作　　者：赵振清 王春青 杜淼 

机构地区：[1]Microjoining Laboratory, School of Material Science and Engineering, Harbin Institute of Technology, Harbin, 150001 [2]Harbin Welding Institute, Harbin, 150080

出　　处：《China Welding》2005年第1期24-28,共5页中国焊接（英文版）

摘　　要：Soldering of LD31 aluminum alloys using Sn-Pb solder paste after electric brush plating Ni and Cu coatings was investigated. The technology of electric brush plating Ni and Cu was studied and plating solution was developed. The microstructure of the coatings, soldered joint and fracture face were analyzed using optic microscopy, SEM and EDX. The shear strength of soldered joint could reach as high as 26.83MPa. The results showed that reliable soldered joint could be obtained at 230℃, the adhesion of coatings and LD31 aluminum alloy substrate was high enough to bear the thermal process in the soldering.Soldering of LD31 aluminum alloys using Sn-Pb solder paste after electric brush plating Ni and Cu coatings was investigated. The technology of electric brush plating Ni and Cu was studied and plating solution was developed. The microstructure of the coatings, soldered joint and fracture face were analyzed using optic microscopy, SEM and EDX. The shear strength of soldered joint could reach as high as 26.83MPa. The results showed that reliable soldered joint could be obtained at 230℃, the adhesion of coatings and LD31 aluminum alloy substrate was high enough to bear the thermal process in the soldering.

关 键 词：LD31 aluminum alloy electric brush plating coating SOLDERING 

分 类 号：TG174.4[金属学及工艺—金属表面处理]