polyester nonwoven fabric for shoes lining Manufacturers

Film welding method 1. The welding temperature, speed and pressure are determined after experiments and inspections. 2. The welding should be stopped when the ambient temperature is too high or too low. 3. The welding rod is the same as the membrane material. 4. Every piece of oilfield impermeable membrane is welded on the day of laying. 5. The edge of the upper impermeable membrane at the weld should be polished to an inclination angle of 45° to improve the welding quality of the weld.

Because the plastic geotextile in the construction process, the polymer high score guild starts from the first row in the direction of thermal extension, which enhances the bond between the branches and realizes the compressive strength to catch up.

Polyethylene geomembrane has the dual functions of waterproofing and preventing plant roots from penetrating. It can withstand the puncture of plant roots and maintain the waterproof function for a long time. It can form a high-strength waterproof layer, has a strong resistance to pressure water, and is resistant to puncture, cracking, tearing, and fatigue.

Laying HDPE geomembrane is the most important part of the anti-seepage system. The quality of the geomembrane itself and the quality of welding construction directly affect the success or failure of the entire anti-seepage project.

The purpose of geomembrane is to use its anti-permeability effect. Geomembrane should be impermeable to the molecular structure and manufacturing process. However, due to the unevenness and defects in manufacturing, the commonly used geomembrane must not leak. It's just that it is relatively difficult to permeate and what is more important is whether the geomembrane can maintain its anti-seepage performance under the action of long-term water head when it contacts the actual soil (or other materials). Due to the uneven contact surface, rough soil particles, large local deformation of the soil, etc., the geomembrane may be broken or torn under the action of high water head, and its anti-seepage performance will be lost or weakened. Therefore, corresponding anti-seepage tests are also required.

The anti-seepage geomembrane coil pipe connection device is used to connect the new and new membranes and the new and old membranes of the engineering anti-seepage system to block the leakage channels established by the unstable connection between the new and new membranes and the new and old membranes to improve the anti-seepage geotechnical Deformation adaptability and anti-seepage level of membrane joints, prevent and control common defects of project anti-seepage quality, improve project quality, ease office environment, and reduce project cost.