Ultra thick film geomembrane welding machine, geomembrane waterproof board welding machine, crawling welding machine wholesale

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　　Ultra thick film geomembrane welding machine, geomembrane waterproof board welding machine, crawling welding machine wholesale

　　Welding requirements for geosynthetic membrane: 1. The welding process of geosynthetic membrane hot wedge welding machine is divided into: adjusting pressure, setting temperature, setting speed, welding seam overlap inspection, installing the membrane into the machine, starting the motor, pressing and welding. 2. There should be no oil stains or dust at the joints, and the overlapping section of HDPE geomembrane should not contain mud or other debris. If there are any debris, they must be cleaned before welding. 3. At the beginning of each welding day, a 0.9mm × 0.3mm sample must be tested and welded on site, with a lap width of not less than 10cm, and a tensile machine must be used for peeling and shearing tests on site. After the sample is qualified, it can be welded at the appropriate speed, pressure, and temperature at that time. The date, time, and temperature should be indicated on the sample. During welding, it is necessary to pay attention to the operation of the hot wedge welding machine at all times and adjust the speed and temperature according to the actual situation on site. 4. Weld seams must be neat, aesthetically pleasing, and free from any slipping or jumping. 5. When encountering insufficient length of geomembrane, longitudinal splicing is required. The transverse welds should be welded first, and then the longitudinal welds should be welded. If the distance between the transverse welds is greater than 50cm, they should form a T shape and not cross each other. 6. Adjacent geomembrane welds should be staggered and overlapped as much as possible. The nodes formed between the membrane blocks should be T-shaped and cross shaped as much as possible. Welding machines should be used to strengthen the intersection of the longitudinal mold and the weld seam. 7. When welding the membrane, no dead folds should be pressed out. When laying HDPE geomembrane, the expansion deformation caused by temperature changes should be reserved according to the local temperature change amplitude and HDPE geomembrane performance requirements. 8. When the temperature control of the handheld welding machine indicates that the welding machine temperature is below 200 ℃, it should be wiped off with a clean cloth or cotton yarn before welding, and if necessary, re polished. Do not wipe it with your hands. 9. When there is condensation, mud, or other factors affecting the joint, welding should be carried out after treatment. 10. Welding cannot be carried out during rainy periods or when there is moisture, dew, or large sand in the joints, except for taking protective measures. 11. When the temperature is below 5 ℃, construction should not be carried out according to the specifications. If construction is necessary, the welding machine should be preheated before welding. 12. During welding, the slider of the welding machine should be checked regularly. If the wear is severe, the slider should be replaced in a timely manner to avoid damaging the film surface. 13. Geomembranes should be powered by generators with good voltage stabilization performance during welding. In special cases where local electricity is used, a voltage stabilizer must be used. Ultra thick film geomembrane welding machine, geomembrane waterproof board welding machine, crawling welding machine wholesale

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