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new starAutomatic flash butt welding machineAlways set the parameters according to the product and test weld it before leaving the factory. Some common problems generally occur when the welding specifications are changed or the product cannot be debugged. There are 9 special points for backup.
1. Burning is too violent and produces a strong explosion sound Solution: Reduce the number of transformer stages; slow down the burning speed
2. The flash is unstable solveMethod:Remove oxides from the bottom and surface of the electrode; increase the number of transformer stages; speed up the burning speed
3. There is oxide film, incomplete welding or slag inclusion in the joint solveMethod:Increase the degree of preheating; speed up the degree of burning when approaching upsetting; ensure the electrified upsetting process; speed up the upsetting speed; increase the upsetting pressure.
4. There are shrinkage holes in the joints solveMethod:Reduce the number of transformer stages; avoid excessively violent burning process; appropriately increase the upsetting allowance and upsetting pressure.
5. The weld is overheated solveMethod:Reduce the degree of preheating; speed up the burning speed and shorten the welding time; avoid excessive live upsetting.
6. Joint cracks solveMethod:Check the carbon, sulfur, and phosphorus content of the steel bars. If the steel bars do not meet the requirements, replace the steel bars; adopt a low-frequency preheating method to increase the degree of preheating.
7. Small surface melting and burns solveMethod:Eliminate rust and oil stains on the clamped parts of the workpiece; eliminate oxides on the inner surface of the electrode; improve the shape of the electrode notch and increase the contact area;Clamp the workpiece.
8. The joint axis deviates or bends solveMethod:Correctly adjust the electrode position; trim the electrode jaws or replace deformed electrodes; cut off or straighten the elbows of the steel bars
9. The joints are burned unevenly solveMethod:Increase the degree of preheating; control secondary flash to avoid premature upsetting.
Wuxi Xinxing Welding Equipment Factory has been engaged in resistance welding machines for 29 years. Its core technology products include: semi-automatic butt welding machines, pneumatic-flash butt welding machines,Multi-strand wire welding machine, foot spot welding machine, pneumatic spot welding machine, medium frequency spot welding machine, row welding machine mesh welding machine, resistance automatic welding machine, energy storage welding machine, copper rod and aluminum rod disc circular welding machine, auto parts spot welding machine, sheet metal spot welding machine, home appliance hardware spot welding machine, small electrical appliance spot welding machine, copper row copper pipe welding machine, nut spot welding machine, stainless steel welding machine, foil strip There are more than 300 kinds of spot welding machines, aluminum spot welding machines, multi-head spot welding machines, bag cage spot welding machines, mesh row welding machines, ton rack welding production lines, resistance automatic welding machines, brazing machines, diffusion welding machines, projection welding machines, seam welding machines, wire and cable optical cable supporting equipment, etc. If you are interested in our welding equipment, please contact us.