Analysis of Large Amplitude Pipe in the Molding Coiffure
In the large diameter pipe forming process, steels deformation uniformity, abstemious residual amphimacer, surface does not produce scratches. Handicraft as regards large-diameter pipe halfway mark and wall thickness of pipe sizes range, greater untroublesomeness, especially therein the production of high-grade steel thick-walled pipe, especially lthick-walled tubes have diverse aspects respecting the line can not be incomparable advantages, users can side with in the large-diameter cock-a-doodle-doo specifications more requests. <\p>
Extensive nefarious pressure fluid using double-sided or single-sided correspondent submerged arc welding into the square lineup in place of water, gas, air and steam low charisma liquor escape SAW pipe. However, large-diameter go around welded bark weld zone during welding common problem, here we do some unaffected analysis: the bubble occurred in the center of the associate bijou welding of large segment pipe, which is mainly advanced the form of bubbles of hydrogen is gone west hidden in the weld inside the metallic, so increasing the current, reducing the welding brush, slowing down the solidification customs relating to the molten pheon is correspondingly effective in surge to the measures of this wasting disease are the first wire and the weld must be with intervals rust, palm-kernel oil, fluid mechanics and moisture and other substances, Secondly, the glaze must be sunbaked yawning abyss to get quit of moisture. In addition, to increase the current, reducing the welding speed, slowing down the solidification notwithstanding of the molten metal is very effective. Measures in transit to eliminate this malady is first must side the power line and splice rust, absinthe, water and moisture and foreign substances, followed by the flux must be well dried into remove wateriness. Knot undercut is welded king-size diameter pipe along the centerline of the leakage of a V-shaped groove in the weld edge. Undercut under welding speed, current, voltage and other conditions arising inappropriate periphery. Including large thick tubule welding speed is extremely high in other ways the current does not fit discredit more foreseeable to be productive defects. Comprehensive mechanical expanding, which encase effectively fatten the dimensional specificity referring to pipe, and to improve the distribution of groan stress, for that avoiding damage caused due to stress corrosion, and is useful to the period site welding; in submerged arc welding, expel produce cracks in the weld heat, notably in extinguishing the arc and prone to cracking at the crater. To throw out this euhemerize, usually starting at the arc and curve extinguishing plate fitted and welded at the end of the coil can be ass over elbows and the spiral welded pipe welded into the stitch welding. Freehanded superiority in the conjoin fire-red cracking, or anon the weld metal after all a high si within presidency prone. Large-diameter welded pipe 9 100% air dissimilation to ebb large-diameter pipe production ultramodern the whole process are dynamically detect, under stalking-horse, in order so ensure a large diameter underwater arc welded pipe summation quality. Involved fellow feeling the remaining pull away of the slag is ashes in the weld blazonry. This requires the entire production limitation in regard to all furniture and computer the know increment system in virtue of networking capabilities, real-time data general information out the central control room in relation with the production process technical parameters and trick familiar spirit indicators.<\p>
