焊条电弧焊熔池温度的控制(国外英文资料).docVIP

焊条电弧焊熔池温度的控制(国外英文资料) China Welding Information Network - Welding Technology: control of welding pool temperature Hot spots, dynamic reports, members, dynamic pictures, news, foreign welding projects, exhibition information, China Welding fair, video news News products enterprise supply, talent, exhibition celebrity: key words: welding technology, welding machine, welding machine, welding technology forum China Welding Fair China welding network Welding technology, welding machine, welding technology forum, China Welding fair, China welding network Let the knowledge change my destiny Current position: welding technology - technical articles - other channels Control of bath temperature in electrode arc welding Wang Xiaoguang In the welding practice teaching, the students in the internship SMAW operation, often overip, burn, unweld, concave, slag, poor forming defects, analysis of the causes of these defects, mainly students during the welding operation, not observing the change of the molten pool temperature, no to effectively control the temperature of the molten pool and the defects. The temperature of the molten pool, directly affects the quality of welding, high temperature of the molten pool and pool large molten iron, good fluidity, easy to weld, but too high, easy to iron under the ice, on the back of one side welding easy to burn, the formation of welding joint forming is also difficult to control, and the decrease of ductility, bending cracking. When the bath temperature is low, the molten pool is small, the molten iron is dark, and the fluidity is poor. It is easy to produce defects such as incomplete penetration, incomplete fusion and slag inclusion. The bath temperature is closely related to welding current, electrode diameter, electrode angle, arc burning time, etc. the following measures are taken to control the bath temperature according to the relevant factors. 1, welding current and electrode diameter: according to the welding space position, weldin