Polyurethane foam has good mechanical performance and adiabatic performance, usually can be 120 ℃ of heat-resistant, through the modification or combined with other heat insulation materials can be heat resistance of 180 ℃. Rigid polyurethane insulation pipe is black and white material mixed foaming and become a kind of thermal insulation pipe shell. White material mainly of phosphorus, glycerol polyether resin polyether resin and glycol polyether resin, you also need to add flame retardant, stable foam agent, and agent. Black material ingredient is more phenyl isocyanate, purity at 90%. The outside layer of glass fiber reinforced plastic is moistureproof layer of insulation structure, is made of fiber glass cloth impregnated resin, strong weathering and corrosion resistance, also has strong hardness 3. Single epoxy powder anticorrosive layer of epoxy powder anticorrosive is developed for nearly 30 years of compound wear-resisting pipe coating, electrostatic spraying technology on coating epoxy powder coating, film forming at a time. The coating is coated simple operation, no pollution, impact resistance and good resistance to bending performance coating, high temperature resistance, etc, outside the country has been widely used. Single epoxy powder pipe Anticorrosive double metal composite wear-resistant pipe products used in: coal mine: suitable for the coal mine underground water supply and drainage, shotcrete, positive negative pressure ventilation, drainage, gas, such as fire sprinkler carbon steel pipe network. Power plant, thermal power plant process water waste residues, backwater pipeline.
Fire protection: to prevent spray, feed line has excellent adaptability of sprinkler system. Highway: electric power, communications, such as highway cable protection sleeve. Municipal engineering: for high-rise buildings water supply, heat supply network heating, water engineering, gas supply, such as underground water pipeline.
Such kind of coating steel pipe is much better in industry useful.
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