Geomembrane is a waterproof material, Geomembrane The main function is to prevent leakage. The geomembrane itself will not leak. The main reason is that the connection point between the geomembrane and the geomembrane will easily leak, so the connection of the geomembrane is very important. The connection of the geomembrane mainly depends on the hot melt welding of the geomembrane.
The following are the steps of the geomembrane welding process:
Preparation before geomembrane welding ：
Prepare equipment and materials needed for welding ：Includes Welding machine, Geomembrane, Welding tape, Cutting knives, etc.
Cleaning geomembrane surfaces ：Make sure the geomembrane surface is clean and dust-free, you can use a cleaning cloth or cleaning paper towel to wipe the surface.
Cutting geomembranes ：Use a cutting knife to cut the two pieces of geomembrane into the shape and size that needs to be welded, with the cutting surface flat.
Preheating welding machine ：Preheat the welder to the appropriate temperature, usually 220-440 °C。
Geomembrane welding steps
Overlap geomembrane ：Weigh two geomembranes StackPlace, heavy StackParts are generally 10-15 cm.
Fixed geomembrane ：Place the geomembrane on the welding table, align it with the welding position, and leave a certain weight StackQuantity.
Insert welding tape ：Insert the welding tape in the bottle into the corresponding notch of the welder.
Start the welding machine ：Turn on the power supply of the welding machine, adjust the welding speed and temperature, hold the welding machine with one hand and press the geomembrane with the other.
Uniform moving welding machine ：Move the welding machine evenly along the welding direction, and the welding belt covers the edge and part of the surface of the geomembrane to form a uniform welding seam.
Trim excess ：Once you’ve finished welding, use a hand-held cutting tool to trim off the excess of the weld.
Quality control of geomembrane welding
Temperature control ：The welding machine temperature should be between 250 and 300 ℃Between, too fast or too slow will affect the welding quality.
Pressure regulation ：The welding pressure should be moderate, too large or too small will affect the welding quality.
Bottom flatness: Ensure that the welding ground is flat and free of foreign matter.
Common Questions and Answers in Geomembrane Welding
Lap width ：The overlap width should not be less than 10cm to ensure the anti-seepage effect.
Adhesive coating ：The cement should be applied evenly in the overlapping area to avoid leakage at the interface.
Post time: Jan-09-2025
