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据统计,造船焊接用电量占船体建造总用电量的70％,船厂焊接设备的技术状况及构成比例对电能利用率影响极大。据有关资料介绍,在相同焊接规范下,熔化一吨焊缝金属,交流焊机耗电 3970度,整流式焊机耗电4830度,旋转式直流焊机耗电6300度(交流焊机比旋转直流焊机节电56.9％,比整流式焊机节电17.8％)。CO_2焊机与手工弧焊机相比,可节电50％。旋转式直流弧焊机不仅效率低,而且噪音污
According to statistics, shipbuilding welding electricity consumption accounted for 70% of the total construction of ship hull, shipyard welding equipment, technical conditions and the composition of the ratio of great impact on the utilization of electricity. According to the information, the same welding specifications, the melting of a ton of weld metal, AC welding machine power 3970 degrees, 4830 degrees rectifier power consumption, rotary DC welding power consumption 6300 degrees (AC welding machine than the rotation DC welding machine saving 56.9%, saving 17.8% than the rectifier welding machine). CO_2 welding machine and manual arc welding machine compared to 50% energy saving. Rotary DC arc welding machine is not only inefficient, but also noise pollution