(2) Correct the welding sequence

(3) Before welding, fix the weldment with a fixture to avoid warping.

(4) Avoid cooling too fast or preheating the parent material.

(5) Choose welding materials with low penetration.

(6) Reduce the gap between welds and the degree of grooving.

(7) Pay attention to the welding size, so as not to make the weld bead too large.

(8) Pay attention to the fixed measures to prevent deformation.