摘要
In order to ensure that the signal can be transported correctly, the microwave devices made of aluminum alloys must be assembled and brazed flaw freely. A new approach of using contact reactive brazing (CRB) process to realize the compact brazing of aluminum alloys is put forward. The reason for this is that CRB, which realizes bonding depending on the liquid alloy produced by metallurgical 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 of LF21 (AA3003) with the compactness of over 95% is 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 is investigated in detail.
In order to ensure that the signal can be transported correctly, the microwave devices made of aluminum alloys must be assembled and brazed flaw freely. A new approach of using contact reactive brazing (CRB) process to realize the compact brazing of aluminum alloys is put forward. The reason for this is that CRB, which realizes bonding depending on the liquid alloy produced by metallurgical 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 of LF21 (AA3003) with the compactness of over 95% is 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 is investigated in detail.
出处
《中国有色金属学会会刊：英文版》
CSCD
2002年第6期1046-1049,共4页
Transactions of Nonferrous Metals Society of China
基金
Project (118.10 .1.18)supportedbyNationalDefencePre researchFoundation
关键词
微波设备
铜铝合金
铜裂缝压致密性
microwave devices
brazed seam compactness
contact reactive brazing
defects
