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UseMultifunctional butt welding machineBefore welding, we must first keep the welding end faces of the two workpieces at least 3-5mm identical in shape and size to ensure consistent heating and plastic deformation of the workpieces.
2. The end face of the workpiece and the surface in contact with the fixture must be strictly cleaned. Oxides and stains on the end surface will directly affect the quality of the joint. Oxides and stains on the surface of the workpiece in contact with the fixture will increase the resistance at the contact, cause surface burns on the workpiece, aggravate jaw wear, and increase power loss.
3. To clean the workpiece, you can use mechanical means such as sandpaper, polisher, wire brush, or pickling.