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What are the strict requirements for the quality of the cooling tower

Author:Trlon  Views:  Time:2021-04-23
What are the strict requirements for the quality of the cooling tower

  1. Resin content: the resin content of the cooling tower body (excluding gel coating and resin rich layer) is controlled in 45%-55%, the resin content of the resin rich layer is more than 70%; Jet forming part in more than 65%; The resin content of the moulded FRP fan blade by the negative die is controlled in 43-50%.8cQCooling tower noise reduction treatment manufacturer

  Two. Flame retardant performance: for the cooling tower with flame retardant requirements, the tower body uses flame retardant resin, its oxygen index is not less than 26.8cQCooling tower noise reduction treatment manufacturer

  Three. Curing degree: the curing degree of unsaturated polyester resin FRP is not less than 80%, and the curing degree of epoxy resin FRP is not less than 90%.8cQCooling tower noise reduction treatment manufacturer

  4. Fans: fan characteristics parameters should meet the requirements of design conditions, its main accessories (such as motor, reducer, etc.) should meet the relevant technical provisions.8cQCooling tower noise reduction treatment manufacturer

  5. Fan blade: metal fan blade surface should be clean, no cracks, gaps, burrs and other defects. The surface of FRP fan blade should be smooth and uniform in all sections. The diameter of bubbles visible on the surface should not be greater than 3mm. The number of bubbles should not exceed 3 for every 100mm area. Be aware of local enhancement when connecting.8cQCooling tower noise reduction treatment manufacturer

  6. Forming process environmental conditions of FRP parts: the room temperature is more than 15℃ and the relative humidity is less than 80%.8cQCooling tower noise reduction treatment manufacturer

  VII. FRP bending strength: the bending strength of unsaturated polyester resin FRP shall not be less than 147MPa(1500kgf/cm2), and the bending strength of epoxy resin FRP shall not be less than 196MPa(2000kgf /cm2).8cQCooling tower noise reduction treatment manufacturer

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