1. Fix the welding nozzle on the heat welding machine, the amount of misalignment is less than 20% of the thickness

2. Use a bilateral cutting machine to cut the weld to be smooth and smooth

3. Adjust the temperature to 190~240℃

4. Wipe the heating plate with a clean cotton cloth

5. Clamp the two sections of pipe to be welded on the welding machine to ensure the end faces are aligned

6. Align the heating plate with the end face of the pipe and close to the pipe, apply pressure, and start the timing of the first stage

7. When the flanging height reaches the technological requirements, keep the applied pressure to the drag pressure, and start the heating time

8. When the time reaches the process requirements, turn the feed handle, loosen the pipes at both ends, and take out the heating plate.

9. Quickly close the pipe and increase the pressure to the welding pressure to start the third stage timing.

10. Observe the flanging situation, relieve the pressure, and start the cooling time

11. The PPR Pipes cooling is over, the fixture is removed, and the welding is over