沪东造船厂在单面焊双面成型自动焊中采用了一种简易衬垫,它由玻璃纤维带、热固定化砂垫、石棉泥板及弹性纸衬等材料组成。可用于单丝焊接板厚18毫米以下的单面成型。该厂曾在七千五百吨客轮及二万五千吨货轮焊接中作了试验性使用,效果良好。 Hudong Shipyard in the single-sided welding double-sided automatic welding using a simple pad, which consists of glass fiber tape, heat-fixed sand pad, asbestos mud board and elastic paper lining and other materials. Can be used for single-wire welding plate thickness of 18 mm or less single-sided molding. The plant had been tested for use in the 7,500-ton passenger ships and 25,000-ton freighter welds and had good results.