(1. 哈尔滨工业大学 现代焊接技术国家重点实验室, 哈尔滨 150001；
2. 深圳宝安联华实业有限公司, 深圳 518106)
摘 要: 采用接触反应钎焊实现了复合电热餐具铝热管与铝板以及铝板与不锈钢板结构的高致密连接。 通过选择接触反应钎焊的中间层成分, 采用Si为中间层介质进行钎焊工艺试验。 对接头组织的显微分析表明, Si中间层介质与铝基体之间发生共晶反应所产生的Al-Si共晶液相, 能够将铝加热管与铝板以及铝板与不锈钢板大面积结构致密地连接在一起。
关键字: 复合电热餐具； 铝加热管； 接触反应钎焊
stainless steel in composite electro-thermal cooker
（1. National Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology,
Harbin 150001, China;
2. Shenzhen Bao′an Lianhua Industry Co. Ltd,
Shenzhen 518106, China）
Abstract:A new idea using contact reactive brazing for the close joining of aluminum electro-thermal tube to aluminum sheet and aluminum sheet to stainless steel sheet in composite electro-thermal cooker was put forward. The interlayer for contact reactive brazing was chosen, and the brazing technical experiments using Si interlayer were carried out. Microstructure analysis of the joint shows that, aluminum electro-thermal tube to aluminum sheet and aluminum sheet to stainless steel sheet are fully joined by Al-Si eutectic phase engendered by eutectic reaction between the interlayer Si and base Al.
Key words: composite electro-thermal cooker； aluminum electro-thermal tube； contact reactive brazing
