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How to weld geomembranes with a welding machine

Release time:

2024-09-12

Correctly and effectively use the welding machine to weld the geomembrane to ensure the welding quality while improving the use effect and life of the geomembrane.

The method of welding geomembranes with a welding machine mainly includes the following steps:

Preparation phase:

1.First, cut the edges of the two geomembranes to be welded into straight lines with a blade or a cutting machine, and clean the impurities on the edges to ensure that the welding surface is clean and dry.

2.Adjust the temperature and speed of the welding machine according to the thickness of the geomembrane.

Welding process:

1.Plug in the power and turn on the switch to wait for heating. Start filming after reaching the predetermined temperature.

2.Align the edges of the two geomembranes and place them under the welding machine, and start the machine for welding.

①If it is a hot air welding method, let the hot air spray out to melt the edges of the geomembrane by heat, and then quickly press the edges of the two geomembranes together, and compact them with a pressure roller to make them firmly bonded.

②If it is a hot melt welding method, align the edges of the two geomembranes and place them under the hot plate welding machine, start the machine, and clamp the two geomembranes between the hot plates to melt them by heat and press them together.

Precautions‌:

1.Temperature and pressure should be controlled during welding to avoid damage to the geomembrane due to overheating or excessive pressure‌.

2.The welded joints must be neat and beautiful, and there must be no slip welding or jumping phenomenon‌.

3.If the geomembrane is not long enough, it is necessary to splice it in the long direction. The transverse welds should be completed first, and then the longitudinal gaps should be welded. The distance between the transverse welds should be greater than 50cm, and they should be T-shaped, and no cross should be formed‌.

4.During the welding process, when using an extrusion welding machine, the slider of the gun head should be checked regularly. If severe wear is found, the slider should be replaced immediately to avoid damage to the membrane surface‌.

Through the above steps, the welding machine can be effectively used to weld the geomembrane, ensuring the welding quality while improving the use effect and life of the geomembrane.

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