(吉林大學(xué) 材料科學(xué)與工程學(xué)院，長春 130025)
摘 要: 研究了Cu, Zn復(fù)合層對Al接觸反應(yīng)釬焊過程和接頭質(zhì)量的影響規(guī)律。Cu和Al形成共晶液相破壞了Al表面氧化膜，促使Cu-Zn包晶液相和Al-Zn-Cu共晶液相在Al表面潤濕。結(jié)果表明，采用復(fù)合層進行Al接觸共晶反應(yīng)釬焊時，Cu和Zn厚度比例合適，可提高釬焊接頭的抗電化學(xué)腐蝕性能和接頭強度。
關(guān)鍵字: Al釬焊；共晶反應(yīng)；復(fù)合層
and joint properties of Al contact
eutectic reaction brazing
（School of Materials Science and Engineering,
Jilin University，Changchun 130025, China）
Abstract:The effects of Cu-Zn compound layer on the process and joint properties of the Al contacting eutectic reaction brazing were studied. Cu-Al eutectic liquid phase can effectively destroy the Al oxide film on the parent metal, and Cu-Zn liquid phase and Al-Zn-Cu eutectic liquid phase can wet in the surface of the Al parent metal. The results show that, in Al cont acting eutectic reaction brazing with Cu-Zn as compound layer, when the thickness proportion of Zn to Cu is appropriate, the electrochemical corrosion resistance and strength of the joint can be improved.
Key words: aluminium brazing; eutectic reaction; compound layer
