ME20M镁合金的炉中钎焊试验研究  

Research on brazing furnace of ME20M magnesium alloy

作　　者：许德星[1] 徐道荣[1] 闫飞[1] 

机构地区：[1]合肥工业大学材料科学与工程学院,安徽合肥230009

出　　处：《轻合金加工技术》2009年第12期49-52,共4页Light Alloy Fabrication Technology

摘　　要：采用铜箔作中间层和BA188SiMg钎料对ME20M镁合金进行了真空炉中钎焊试验研究。结果表明,采用铜箔为中问层和BA188SiMg钎料在真空炉中钎焊ME20M镁合金时,均存在较大的溶蚀倾向,且采用BA188SiMg钎料钎焊ME20M镁合金时,钎焊温度和钎料量对溶蚀的影响更加显著;采用铜箔作中间层在525℃钎焊温度下得到的接头外观质量较好,接头区有高硬度的脆性相CuMg2生成,而在540℃钎焊温度下,由于发生严重溶蚀而不能焊合。The copper foil as intermediate layer and BA188SiMg brazing alloy were used to weld ME20M magnesium alloy in vacuum furnace. The results showed that both exited biggish erosion trend.Influence of the brazing temperature and solder quantity were more distinct for the latter;The better appearance quality of welded joint can be got with copper foil as intermediate layer under 525 ℃ .But welded joint zone exist intermetallic compound of Mg2Cu with high rigidity.While under 540℃ can＇t be soldered owing to serious erosion.

关 键 词：ME20M镁合金 炉中钎焊 溶蚀 试验研究 

分 类 号：TG454[金属学及工艺—焊接]