1. Selection of welding material: covered electrode thickness is selected according to the thickness of the material, which is most suitable to meet the requirements.
2. Current and voltage: We often encounter them in actual operation. Excessive current and voltage, damaged parts; Too small to weld completely.
3. Welding sequence: For example, sectional welding shall be carried out from the middle to both sides, and it shall be carried out by jumping from left to right during welding, so as to make it evenly heated.
4. Analysis of box deformation: It is necessary to analyze in advance whether the size will shrink longitudinally or transversely after welding, and which side will be deformed. In this case, the non-shrinking side can be welded first, so that the deformation is small.
5. The weld gap is not easy to be too large, and it is best not to use gaps for thin plates, as long as they can be welded through.
6. Welding fixture: For sheet metal parts or cabinets with high installation size requirements, fixtures are used to control deformation and shrinkage. The fixture mainly plays a supporting and fixing role to reduce the deformation caused by welding.
7. Knocking on the weld: Most of our welders don't have this habit or don't know this principle at all. Of course, tapping around the weld after welding can reduce stress and deformation. Be careful not to knock hard and slap casually, otherwise the weld will crack and the loss will outweigh the gain.
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