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Anti-corrosion insulation bend
Anti-corrosion insulation bend
  • PRODUCT NAME:

    Anti-corrosion insulation bend

  • DESCRIPTION:
    The anti-corrosion and thermal insulation bending pipe is made of a complete set of bending die...

DESCRIPTION

The anti-corrosion and thermal insulation bending pipe is made of a complete set of bending die, which is divided into two processes of cold stewing and hot pushing. No matter which kind of machine equipment and pipelines, most of them use curved pipes, mainly for oil, gas, liquid and so on. The main production equipment of anti-corrosion insulation pipe bending is pipe bending machine, which can be roughly divided into nc pipe bending machine, hydraulic pipe bending machine and so on. Different thermal bending processes are selected according to functional requirements, pipe diameter and wall thickness, thermal bending equipment and control techniques, etc., and appropriate thermal bending process parameters are developed to ensure that qualified bending pipes are made.

The bottom of the anti-corrosion insulation bending pipe is fused epoxy (> 80 solution m). The intermediate layer is adhesive (170-250 x m); The surface layer is extruded polyethylene (about 2mm). The total thickness of the protective layer is about 1.8-3.7mm. In the three-layer structure, the main function of the fused epoxy powder coating is to form continuous coating film, which is directly bonded to the surface of the bend pipe and has good chemical corrosion resistance and cathodic stripping resistance. Chemical bond is formed by reaction with the active group of the intermediate layer adhesive to guarantee the good bond of the whole anti-corrosion layer at higher temperature. The intermediate layer is usually a copolymer binder, whose main component is polyolefin. At present, vinyl copolymer adhesive is widely used. The polar functional groups of copolymer adhesive and epoxy groups of fused epoxy powder coating can react to form hydrogen bonds or bonds, making the middle layer and the bottom layer bond well. The non-polar ethylene part and the surface polyethylene have good pro-cooperation, so the middle layer and surface layer also have good bonding performance. The main function of polyethylene is mechanical protection and anticorrosive, which has the same function with the traditional two-layer structure polyethylene.


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