Proceedings of the KWS Conference (대한용접접합학회:학술대회논문집)
- 2002.10a
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- Pages.545-550
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- 2002
A NOVEL APPROACH TO COMPACTLY BRAZE ALUMINUM ALLOYS
- Qian, Yiyu (The National Key Laboratory of Advanced Welding Production and Technology, Department of Welding Technology, Harbin Institute of Technology) ;
- Dong, Zhangui (The National Key Laboratory of Advanced Welding Production and Technology, Department of Welding Technology, Harbin Institute of Technology) ;
- Liu, Jun (The National Key Laboratory of Advanced Welding Production and Technology, Department of Welding Technology, Harbin Institute of Technology)
- Published : 2002.10.01
Abstract
In order to ensure the signal could be transported cocrrectly, the microwave devices made of Aluminmn alloys must be assembled and brazed flaw-freely. In this paper, a new approach of using contact reactive brazing (CRB) process to realize the compact brazing of Aluminum alloys was put forward. The reason for this is that CRB, which realizes bonding depending on the liquid alloy produced by metallurgy reaction between the materials to be joined, overcomes the limitation of traditional brazing that the macroscopically disorganized filling flow of liquid filler metal would result in defects in brazed seam. Joint ofLF21 (AA3003) with the compactness of over 95% was brazed by the method of CRB using Si powder as an interlayer. At last, the influence of the physical parameter related to the Si powder interlayer on the compactness of the joints was investigated in detail.