How to control the welding process of steel plate?

(1) Make a reasonable welding sequence to avoid the generation of welding residual stress as much as possible, so as to reduce the concentration of binding stress of welding joint.
(2) During the welding process, the welding process parameters shall be strictly implemented, the heat input of welding shall be controlled as much as possible, and the welding shall be carried out with small current.
(3) During the welding process, the interlayer temperature of the weld bead shall be strictly controlled, which shall be less than 250 ℃.

(4) To ensure the internal quality of the weld, the carbon arc gouging shall be used for root cleaning after one side welding and before the other side welding.
(5) The connection foundation of weld and thick plate base metal, i.e. the size of weld leg shall be as large as possible within the standard requirements.
(6) The local buffer between the base metal of thick plate and the weld metal should be considered when considering the distribution of weld passes.