铝熔化极氩弧焊中的自身调节作用  

Self regulation effect of aluminum alloy wire in MIG welding

作　　者：傅希圣[1] 

机构地区：[1]甘肃工业大学材料工程系

出　　处：《甘肃工业大学学报》1997年第2期12-15,共4页Journal of Gansu University of Technology

摘　　要：采用自制装置研究了短弧区铝合金熔化极氩弧焊时的自身调节作用，测定了熔滴热焓、温度和焊丝熔化特性．证实了阳极斑点爬升现象，测定了弧长恢复时间常数。The intrinsic self regulation effect of aluminum alloy wire in the region of short arc in MIG welding is investigated with self made equipment. Melting characteristic of welding wire, the enthalpy of droplet, draptet temperature, and the recovery time constant of arc length are measured. The phenomenon of anode spot climb is verified. It is also pointed out that the intrinsic self regulation effect of wire melting rate exists in case of electrical short circuit.

关 键 词：MIG焊接 自身调节作用 氩弧焊 铝合金 焊丝 

分 类 号：TG444.74[金属学及工艺—焊接]