Quick Coupling welding process A

Quick coupling lateral shrinkage unit weld the weld metal weight. Suffered the resistance due to the weld transverse shrinkage increase with the increase in the amount of weld metal, so the first few large shrinkage in the welding process, the resulting shrinkage in a few welding process gradually decreases.

(1) root gap with the increase of the root gap, the transverse shrinkage increased significantly, because the root gap increases, the weld volume also increased.

(2) groove. Experiments show that compared with two-sided v-shaped groove-sided v-shaped groove butt joint will have a greater lateral contraction. Part of the reason is that the v-shaped groove

Weld off the larger reason.

(3) electrode diameter. With the increase of the electrode diameter, transverse shrinkage is reduced, however, introduce a bead with a large diameter electrode otherwise use the method to increase the diameter of the electrode does not reduce the lateral contraction.

Read next article "Quick Coupling welding process B",you can know the next process.

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