PE pipe welding technology
1) Preparation for welding: Check and clean the heating plate to check whether the coating of the heating plate is damaged. If it is damaged, needs to be replaced. Connect the oil circuit after cleaning the oil circuit joint. Check the power supply, voltage, and ground .Then connect the circuit, and run the air exhaust. The heating plate heats up, and after the temperature reaches the preheating temperature (215℃-235℃), the preheating continues for 10 minutes. Install clamps that conform to the pipe specifications;
2) Clamp the pipes: set soaking time and cooling time as required (if the welding equipment cannot set the time, you can use a stopwatch or watch to control); open the basic frame and put PE pipe into the basic frame; adjust the concentricity, if necessary, adjust the floating suspension device, use wooden bars or roller brackets to flatten the pipe to reduce friction; clean the inner and outer surfaces of the pipe end;
3) mill the welding surface;
4) close basic frame and pressure evenly and slowly. When the basic frame starts to move, the pressure value is recorded as the drag pressure (P0);
5) Check the gap of the welding end face <0.3mm;
6) The end face is flat and absorbs heat;
7) Switching butt welding ;
8) Remove pipe
