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在机械制造业中,薄板之间的相互连接(排气管、水箱、油箱和风罩),一般都采用对接焊。当薄板面积较小,如在225平方厘米以下时可用气焊。但薄板面积很大时,气焊就会产生生凹不不平的现象,使产品质量低劣,外貌极不美观。几年来,我们在生产实践中采用了一种“加丝弧焊”法。这种方法用于面积大于225平方厘米、厚度为0.5～2毫米的薄扳对接焊。焊接速度快、效率高质量好,焊缝光滑美观。焊接方法:头戴头盔式面罩,一手拿着夹紧焊条的焊把,一手拿着焊丝(冷丝)。当焊条起弧时,迅速地把焊丝移到焊条端。焊条和焊丝同时熔化,
In the machinery manufacturing industry, the interconnection of sheets (exhaust pipes, tanks, fuel tanks and draft shields) generally uses butt welding. When the sheet area is small, such as 225 square centimeter below the available gas welding. But the sheet area is very large, the gas welding will produce uneven phenomenon, poor product quality, appearance is extremely beautiful. In recent years, we have adopted a “plus arc welding” method in production practice. This method is used for thin-plate butt welding with an area of more than 225 square centimeters and a thickness of 0.5 to 2 mm. Welding speed, high efficiency, good quality, smooth and beautiful weld. Welding method: wearing a helmet mask, holding the welding rod in one hand and the welding wire (cold wire) in one hand. When the electrode arcing, quickly move the wire to the end of the electrode. Welding rod and wire melted at the same time,