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(?)面焊双面成型埋弧自动焊是一种比较先进的焊接工艺,由于单面焊完后使焊缝正反面都能成型,克服了一般埋弧自动焊一条焊缝最少是焊两次(正反面各一次)的缺点,同时省去了翻转钢板的附助工序,因而具有较高的生
(?) Face welding Double-sided forming submerged arc welding is a more advanced welding technology, as the one-sided welding after welding both front and back can be formed, to overcome the general submerged arc welding a weld at least two Times (both positive and negative) shortcomings, while eliminating the need to flip the auxiliary process steel, which has a high birth