铝合金小通道冷板真空扩散焊研究  

Research on vacuum diffusion welding of aluminum alloy small-channel cold plate

作　　者：黄文翔 李国超 朱遥锴 笪秋攀 李谦 HUANG Wen-xiang;LI Guo-chao;ZHU Yao-kai;DA Qiu-pan;LI Qian(No.724 Research Institute of CSIC,Nanjing 211153)

机构地区：[1]中国船舶重工集团公司第七二四研究所

出　　处：《雷达与对抗》2019年第4期50-53,共4页Radar & ECM

摘　　要：小通道结构具有良好的散热性能,但传统焊接方法无法对其进行焊接。设计了翅片对接翅片和翅片对接盖板的两种小通道结构,并采用真空扩散焊接的工艺方法将两种结构的6063铝合金冷板焊接成形。着重分析了两种冷板结构的扩散焊接头形貌、显微硬度、焊接形变和密封性。结果表明,两种结构经真空扩散焊后密封性能良好,焊接形变量低,可保证焊件的尺寸精度。Small-channel structure features favorable heat dissipation performance, but it cannot be welded by using conventional welding methods. Two kinds of small-channel 6063 aluminum alloy cold plates, namely fin-fin connection and fin-cover board connection, are welded through vacuum diffusion welding, with an emphasis on the morphology of joints, microhardness, channel deformation, and sealing. The results show that the two structures feature good sealing performance and little channel deformation after vacuum diffusion welding, which can ensure dimensional precision of the weldment.

关 键 词：真空扩散焊接 冷板 接头形貌 小通道 

分 类 号：TN957.8[电子电信—信号与信息处理]