fire resistance coal mine steel-plastic grids 50KN

1.coal mine stee- plastic grids material is pp (polypropylene) 2.coal mine steel- plastic grids not easy to produce static 1. Characters:This prodcut mainly consisted of polypropylene or polyethelene and steel wire, through the special processing of anti-static and fire resistance, adopt techniques of extrusion, cooling and welding, then form the whole grids. Its characters as following: A. Not easy to produce static when friction. Under coal mine, the resistance mean value of covered plastic is 1×109ΩB.    Good ability of fire resistance. In the environment of 760°C, only melting, no fire, it will extinguish as soon as the grids left flame if it fire.C.    Good performance of anti-corrosion. The bare steel wire is easy to be rusted under mine, it will overcome the fatal weakness after covered PP or PE on steel wires, extend the using life consumedly.D.    Convenient to construction and transport. It is not easy to hurt wokers because covered one layer soft plastic, can improve work efficiency also.E.    High bearing strength. There are enough quantity and strength steel wire in grids, so that ensure the average breaking strength more than 4000N/M, improved the bearing strength consumedly.2. Product PurposeThis products mainly used in coal mine as ceiling and shield, can act as protecting material of anchor laneway, shoring laneway, anchor splaying laneway and so on. Also can be used as fortified material in mine laneway engineering, slope protecting engineering, undergroud constrution engineering and communication engineering, it is the optimal refill of plastic braided grids and steel wire grids. 

fire resistance coal mine steel-plastic grids 50KN