First, the butt welding machine should be placed indoors and have a reliable grounding (connected to zero). If multiple butt welding machines are installed in parallel, the spacing shall not be less than 3m.
Second, before the operation, check that the pressure mechanism of the butt welding machine should be flexible, the fixture should be firm, and the gas and hydraulic systems should be free of leakage. After confirming that they are normal, welding can be performed.
Third, before welding, the secondary voltage should be adjusted according to the section of the welded steel bar, and the steel bar with a diameter exceeding the specified diameter of the butt welding machine should not be welded. The contact points and electrodes of the circuit breaker should be polished regularly, and all the connecting bolts of the secondary circuit should be tightened regularly. The cooling water temperature should not exceed 40°C; the drainage should be adjusted according to the temperature.
Fourth, brackets should be provided when welding longer steel bars. Cooperate with the operator who handles the steel bars, and pay attention to prevent sparks and scalds when welding. A baffle should be set up in the flash area, and unrelated personnel are not allowed to enter during welding.
Fifth, during construction in winter, the indoor temperature should not be lower than 8°C. After the operation, drain the cooling water in the machine.
