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在我国造船工业上,自动焊焊接薄板(2～4公厘)是当前未解決的問题之一。在国外,自动焊焊接薄板都是在电磁平台上进行的,使薄板一次焊接能够兩面成型。在我国目前的情况下,电磁平台还沒有普湿运用,薄板的焊接和焊厚鋼板一样,要进行兩面焊,这样給焊接薄板帶来了許多困难: 1.焊接电流小,焊接速度快,熔池的存在时間短,溶解于液体金屬中之气体不可能完全逸出,結果在焊縫中形成气孔。
In China’s shipbuilding industry, automatic welding of welded thin plates (2 to 4 mm) is one of the unsolved problems. In foreign countries, automatic welding of welded plates are carried out on the electromagnetic platform, so that a sheet of welding can be formed on both sides. In our country’s current situation, the electromagnetic platform is not yet universal use, the welding of thin plates and welding thick steel, to be welded on both sides, so to the welding sheet has brought many difficulties: 1. Welding current, welding speed, melting The short existence of the pool, the gas dissolved in the liquid metal can not completely escape, resulting in the formation of pores in the weld.