In the electric fusion connection method, the oxide scale in the welding area must be removed; at least the oxide scale in the pipe welding area must be removed when the electric fusion saddle pipe is welded.
Both ends of the pipe should be cut into a plane perpendicular to the axis, with an error of less than 5mm, and the pipe and fittings should be inserted in place.
Check before welding to ensure that the input welding voltage and welding time are correct.
After the electrofusion welding is completed, check whether the observation hole of the electrofusion pipe fitting is lifted up and no melt flows out of the pipe fitting.
During the cooling phase, it is forbidden to remove the fixed fixture before the cooling time is reached; forced cooling methods such as air cooling and water cooling are strictly prohibited.
If a generator is used for power supply, the generator should be started and run stably before starting the electric welding machine.
