Guide: How to construct two-ply and one-membrane waterproof geotextile? When checking the geotextile membrane, it is necessary to see if there are no obvious weld marks. You can wait for it to cool down completely to conduct a compressive strength test. Immediately press down the rod to separate the upper tension wheel to prevent the rubber wheel from burning for too long.

The welding of waterproof geotextiles is carried out by hot-melt welding. The welding machine adopts Leicester products, and the geotextile is sewn by a handheld sealing machine.

How to construct two-ply and one-membrane waterproof geotextile

Welding process: The welding raw materials are overlapped along the vertical edge, facing forward, left lower, right upper, up and down. Adjust the direction of the two layers of welding edges to make the steel bars reach 10cm.

2. Before welding, the blower should blow out the surface of the film with sand, soil and other contaminants to ensure the film surface is clean. A long wooden board should be placed on the side of the welded part to facilitate the movement of the MIG welding machine on the plane and ensure the welding quality. Weld two, each 10 millimeters wide, and the two are indirectly separated from a 10-millimeter cavity. Use this cavity to check the welding quality.

3. Welding temperature can be distinguished: For new projects, when checking the geomembrane, it is necessary to see if there are no obvious weld marks. The compressive strength test can be conducted after it cools down completely.

4. When the temperature and speed are clearly defined, the raw materials to be welded must be inserted between the two rollers, so that the shell is parallel to the edge of the weld seam, and the rod cover can be self-welded. Generally speaking, the actual operator only needs to check whether there is any error between the weld mark and the edge of the butt weld and make minor corrections immediately.

5. When the raw materials are welded to the deep part, immediately press down the rod to separate the upper tension wheel to prevent the rubber wheel from burning for too long.

6. The weld seam between the welding raw material and another raw material is required to be a T-shaped weld.

7. Adjustment of work pressure. When the equipment has been in use for a period of time, the working pressure will decrease and must be adjusted immediately.

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