(1. 哈爾濱工業(yè)大學(xué) 現(xiàn)代焊接技術(shù)國家重點實驗室, 哈爾濱 150001；
2. 深圳寶安聯(lián)華實業(yè)有限公司, 深圳 518106)
摘 要: 采用接觸反應(yīng)釬焊實現(xiàn)了復(fù)合電熱餐具鋁熱管與鋁板以及鋁板與不銹鋼板結(jié)構(gòu)的高致密連接。 通過選擇接觸反應(yīng)釬焊的中間層成分, 采用Si為中間層介質(zhì)進行釬焊工藝試驗。 對接頭組織的顯微分析表明, Si中間層介質(zhì)與鋁基體之間發(fā)生共晶反應(yīng)所產(chǎn)生的Al-Si共晶液相, 能夠?qū)X加熱管與鋁板以及鋁板與不銹鋼板大面積結(jié)構(gòu)致密地連接在一起。
關(guān)鍵字: 復(fù)合電熱餐具； 鋁加熱管； 接觸反應(yīng)釬焊
stainless steel in composite electro-thermal cooker
MAI Han-hui2, HUANG Zhen-feng2
（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
