Physical Phenomena of Submerged Arc Welding
Currently, double-sided spiral pipe is widely used submerged arc welding technology, following the formation and characteristics of what the submerged arc welding.
Principle of submerged arc welding: submerged arc welding is performed by arc welding heat, and manual arc welding is different: submerged arc welding wire is bare, no paint above, submerged arc flux is indeed to be welded in advance shop Department, submerged arc welding wire extends into the flux, the arc is burning in flux.
SAW formation process like this: the wire in contact with the workpiece, press the start button and instantly after pressing, welding wire and workpiece energized wire Withdrawing arc ignition, welding carriage forward, under continuous wire to transport, maintain Arc burning at the solder layer, formed under the arc weld pool. In an arc around the solder melts to form a cavity. This empty and the pool continues to advance, but the pool behind the metal solidified, forming a continuous weld. Because this process is carried out under the flux, so we can not see with the naked eye. By means of X-ray photography can be seen.
Since spiral submerged arc welding steel pipe welding technology, in addition to such a high production efficiency; produce less auxiliary time, saving time change electrodes; welding conditions clean and free of spatter, saving cleanup time; high weld quality. But also for the delivery of spiral pipe plant provides the necessary conditions for such a large quantity of spiral pipe production time is guaranteed, so there still is widely used with.
Principle of submerged arc welding: submerged arc welding is performed by arc welding heat, and manual arc welding is different: submerged arc welding wire is bare, no paint above, submerged arc flux is indeed to be welded in advance shop Department, submerged arc welding wire extends into the flux, the arc is burning in flux.
SAW formation process like this: the wire in contact with the workpiece, press the start button and instantly after pressing, welding wire and workpiece energized wire Withdrawing arc ignition, welding carriage forward, under continuous wire to transport, maintain Arc burning at the solder layer, formed under the arc weld pool. In an arc around the solder melts to form a cavity. This empty and the pool continues to advance, but the pool behind the metal solidified, forming a continuous weld. Because this process is carried out under the flux, so we can not see with the naked eye. By means of X-ray photography can be seen.
Since spiral submerged arc welding steel pipe welding technology, in addition to such a high production efficiency; produce less auxiliary time, saving time change electrodes; welding conditions clean and free of spatter, saving cleanup time; high weld quality. But also for the delivery of spiral pipe plant provides the necessary conditions for such a large quantity of spiral pipe production time is guaranteed, so there still is widely used with.
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