V groove plate butt flat welding one-side welding with back formation of Q235 steel
The operation process of single-side welding and double-side forming for the butt joint of the SMAW plate was introduced in the paper.It introduced the operation process of single-side welding and double-side forming from the aspects of preparation before welding,assembly of specimens,selection of welding process parameters and welding operation,and expounded the precautions in three stages:bottom welding,filling layer welding and cover layer welding.The joint connection,the identification of welding pool and the evaluation of welding quality were discussed in detail.It had a certain guiding effect on the welding of high quality joint by one-side welding with back formation technology of shielded metal arc welding.
SMAW1Gbacking weldone-side welding with back formationoperative skills
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维普
