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焊接厚的或薄的铝板都能取得适当的深/宽比,气体消耗量大大减少,焊速高,焊缝质量好。 Hofmeister和Nolle已指出用普通的埋弧焊方法焊铝不能得到满意的接头。由于熔渣与熔融金属的密度相差甚小,分离太慢,焊接时必需减小焊速或强烈预热,使凝固变慢。因此对于铝需要选择别的焊接方法,最后采用了MIG和TIG焊,因为这二种焊接方法都提供了改变熔深、熔宽的余地——不仅通过改变He/Ar的混合比,而且可通过逐步增加气体流量来调节。然而,就最佳规范而言,
Weld thick or thin aluminum can achieve the appropriate depth / width ratio, gas consumption greatly reduced, high welding speed, weld quality. Hofmeister and Nolle have pointed out that soldering aluminum with conventional submerged arc welding does not give satisfactory joints. Due to the difference between the density of slag and molten metal is very small, the separation is too slow, the welding speed must be reduced or preheated to reduce the solidification. So choose another welding method for aluminum, and finally MIG and TIG welding, because both welding methods have room to change the penetration, melting width - not only by changing the He / Ar mixing ratio, but also by Gradually increase the gas flow to adjust. However, as far as best practices are concerned,