What are the details of geomembrane construction?
Before welding, it is necessary to carefully adjust the single membranes near the joints to allow them to reserve a certain width so that they overlap.
When welding, the welding operation should be performed by professionals, and the welding process should be observed at any time.
During the inspection, the edges welded by the hot melt machine need to be inspected to see if there are scratches, open welding, etc.
When backfilling the protective layer and masonry blocks to protect the surface, it must be handled with care to avoid breaking the geomembrane.
When laying, it must be laid from top to bottom. The membranes and the membranes and the base surface should be pressed flat and tightly, but the membrane should not be pulled too tight.
What are the raw materials for geomembrane production?
The raw materials for geomembrane production are mainly polyethylene plastic films, including polyvinyl chloride (PVC), polyethylene (PE), ethylene/vinyl acetate copolymer (EVA), etc.
Among them, HDPE geomembrane, that is, high-density polyethylene geomembrane, has good heat resistance and cold resistance, and has good chemical stability, and can resist strong acid, alkali, oil, and high corrosion coefficient.
LDPE geomembrane, that is, low-density polyethylene geomembrane, although it is not as good as HDPE geomembrane in some aspects, its aging resistance and environmental stress are stronger than HDPE geomembrane.
What are the standards for geomembrane width?
The width of the geomembrane is generally between 4m and 8m, and the commonly used ones are 4m, 5.8m, 6m, 7m, 8m, etc.
The thickness of the geomembrane is generally from 0.3mm to 3mm, and the thickness of the geomembrane above 0.8mm can be called waterproof board. The commonly used one is EVA waterproof board, which is mainly used in tunnel engineering. The length and width of geomembrane, commonly used specifications are width 1-8 meters, length 50-100 meters, most manufacturers can process and customize the size.
What is the machine for making geomembrane?
The machine for making geomembrane is blown film machine.
Geomembrane is made of high-density polyethylene resin, and the film blowing machine is a machine that makes films from high-density polyethylene resin.
The function of the film blowing machine is to make plastic particles into film materials.
The film blowing machine is mainly composed of three parts: the extruder, the machine head, and the die head. It is the last process of plastic product processing and the main process of plastic product forming.