Quality assurance measures for steel structure welding
Quality assurance measures for steel structure welding process
1, before the construction of erection welding welding protective measures (wind proof shed shed, etc.).
2, the use of flux cored welding wire, and the use of large flow of CO2 gas welding protection, increase the degree of protection of CO2 gas column stiffness, improve wind resistance, the formation of the weld pool of slag gas joint protection.
3, before welding to clean the mouth, clear the surface of the welding mouth water, oxidation, rust, oil.
4, strictly in accordance with the welding process parameters obtained by welding.
5, strict control of the welding process temperature.
Remove slag 6, between passes must be thoroughly.
7, the completion of the welding seam, before welding to preheat treatment, after welding heat treatment.
8, welding to take reasonable welding sequence for construction (such as two, three or four symmetrical welding).
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