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焊前准备做好焊前准备,是保证喷焊过程顺利进行的必要条件。①清理喷咀。保持喷咀孔道和端面光洁,并调整钨极对中(用高频火花检查)。使用一段时间后,重新打磨钨极尖端,调节内缩长度。重新装配喷咀时,应检查是否漏水,并用冷热吹风机吹净积水和余粉。②粉末过筛、烘干。③按选定的工艺参数和动作程序,检查设
Preparation before welding to prepare the welding is to ensure the smooth progress of the welding process necessary conditions. ① clean nozzle. Maintain the nozzle hole and end face clean, and adjust the tungsten pole (using high-frequency spark inspection). After a period of time, re-polished tungsten tip, adjust the length of contraction. When reassembling the nozzle, check for leaks and blow off water and excess powder with a hot and cold blower. ② sieve powder, drying. ③ Press the selected process parameters and operating procedures, check the set