Specific Steps for Hot Melt Welding of PPH Pipes

As the market evolves, the application of PPH pipes has become increasingly widespread. How to carry out hot melt welding for Zhenjiang PPH pipes during use, and what specific steps are involved? Hot melt welding primarily consists of seven steps: cutting, preheating, aligning, heating, melting, cooling, and inspection. Below, we have compiled relevant instructions for you.

Firstly, we need to de-stack the PPH pipes and cut them to the required dimensions using a specialized cutter. When cutting, be cautious not to deviate from the line and gently rotate the blade in. Avoid rushing, as it may damage the blade. If the cutter is difficult to rotate, reverse it, remove the blade, and re-align the line. Next, preheat the PPH pipe using the PPH pipe hydraulic regulating valve to adjust the preheating pressure to the welding required pressure. The adjustment method is to lock the heating relief valve, push the hydraulic lever forward, and observe the pressure gauge for the pressure reading.

The next step involves alignment, selecting the appropriate mold, and securing the熔接管段 onto the work platform with a wrench; while securing, tighten the clamping screws at both ends in sequence to prevent the管段 from being uneven; ensure the spacing between the two管段 is not less than the thickness of the electric cutting machine when the hydraulic rod is retracted to ******; the welding surfaces of each管段 should protrude 40~50mm beyond the clamp, and extra attention should be given to overall levelness when the管段 is longer. Remove the heated plate that has reached the required temperature from the pph管 tool holder. Place it on the operating stand, with one side resting against the welding surface, and push the hydraulic clamp to achieve the required welding pressure. Once the hot melt flange on the welding surface reaches 1mm, release the heating and pressure relief valve, relieve the heating pressure, and wait for a period of time until the hot melt welding joint meets the requirements.