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厚板窄间隙焊接是一种优质、高效、低消耗的焊接方法,近年来在国内外得到迅速的发展。我厂生产大型换热器,管板厚度50米毫米,材质A3,需要拼板对接,每条对接焊缝长3米,焊缝要求100％射线探伤,针对这种情况,我们进行了窄间隙焊接工艺试验,并成功的应用于生产。所谓窄间隙焊接,就是将两块待焊接的钢板,边缘不开坡口(也称Ⅰ型坡口),根据焊
Thick plate narrow gap welding is a high quality, high efficiency, low consumption of welding methods, in recent years at home and abroad have been rapid development. I plant a large heat exchanger, tube thickness 50 meters, material A3, the need for puzzle docking, each butt weld length of 3 meters, the weld requires 100% ray inspection, in view of this situation, we conducted a narrow gap Welding process test, and successfully applied to the production. The so-called narrow gap welding, is to be two to be welded steel, the edge is not groove (also known as type Ⅰ groove), according to the welding