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What are the reasons for the poor contact of the conductors of the can seam welding machine?

2024-03-26

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In the production process of the tank body, sometimes the surface of the can seam welding machine seems to be welded normally, and the network voltage, controller, and welded steel plates are also normal. However, serious cracking and leakage often occur in the process of tank flanging and leak testing.

It may be that a certain conductor connection part in the electrode circuit of the can seam welding machine has poor contact due to oxidation, ignition, screw shaking, etc. At this time, the direct short-circuit method can be used. Under the condition of normal water flow of the cooling water, the normal welding current is directly short-circuited. After 10 minutes up and down, it is detected which part is particularly hot, indicating that the contact surface of this part has no If there is any problem, it must be disassembled and corrected.