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我厂空气压缩机储气罐采用Q235A类钢板制造,板厚4mm,筒体直径260～400mm,最大长度1100mm,工作压力0.6～1.4 MPa。气罐纵缝原采用手工焊封底的自动埋弧焊工艺,该工艺较为费料,为提高产品质量和生产效率,采用自动埋弧单面焊双面成形工艺。 1 焊接夹具为了获得较理想的背面成形,设计制造了气动琴键式焊接夹具(见图)。施焊前气带允
The air compressor tank of our factory is made of Q235A steel plate, the plate thickness is 4mm, the cylinder diameter is 260 ~ 400mm, the maximum length is 1100mm and the working pressure is 0.6 ~ 1.4 MPa. The longitudinal seam of the gas tank adopts the automatic submerged arc welding process with manual welding at the end, which is more expensive. In order to improve the product quality and production efficiency, automatic submerged arc welding with one side welding is adopted. 1 welding fixture In order to obtain a better back of the forming, the design and manufacture of pneumatic piano-type welding fixture (see photo). Gas coating before the band allowed