Coal mine using the bi-directional welding with plastic top network 


 Coal mine using the bi-directional welding with plastic top network 
 Coal mine leave the top of the steel-plastic composite net (Steel-plastic net) mine Support Network ore with a false top network 
 It is made of polypropylene as the base material, after anti-static resistance, flame resistance treatment, to take the overall structure of the grid formed by biaxial stretching method, its performance is as follows: 
 1, the friction is not easy to generate static electricity. In underground coal mine environment, the plastic mesh surface resistance average were below 1 × 10 ⒐ Ω. 
 2, good flame retardant properties. Only melt do not burn in the open flame environment, even if the burning from the fire up to no more than 10s Jimie. 
 3, anti-corrosion, anti-aging. 
 4, to facilitate the construction and transportation. The plastic mesh is relatively soft and should not scratch the workers in the construction, but also has the advantage of easy to curl bundling, tailoring and light weight, and thus facilitate the underground transport, carry and construction. 
 To facilitate coal washing. The plastic net density of between 0.89-0.91, less than the density of water in the coal washing process, the broken network with floating in the water this high-strength steel wire (or fiber), specially treated with polyethylene ( PE), and add other additives, extrusion making composite high strength tensile strip and surface rough embossed, compared with high-strength reinforced geobelt. This single band, the longitudinal and cross-woven by a certain spacing or clip together arrangement, special strengthening adhesive welding technology welding its intersection forming is reinforced geogrid. 
 Steel-plastic grille 
 Product features: 
 A high strength, small deformation; 
 (2) creep is small; 
 Corrosion-resistant, long life: steel plastic geogrid plastic materials for the protective layer, and then supplemented with various additives to aging, oxidation, acid, alkali, salt and other harsh environmental corrosion. Therefore, the steel-plastic geogrid to meet the needs of all types of permanent works of more than 100 years, and the excellent performance, good dimensional stability. 
 Construction convenient, short cycle, low cost: steel plastic geogrid laid lap, positioning easy, flat, to avoid overlapping cross, which can effectively shorten the project cycle, saving 10% -50% of the project cost. 
 , Easy to rinse off.