Raw materials.

It is a steel-plastic composite pipe with high-quality seamless steel pipe as the base pipe and a nano-scale plastic anti-corrosion layer coated on the inner and outer surface of the steel pipe by hot-dipping process. The hot impregnation process adopts the fluidized impregnation process for one-time film formation; The coating is based on polyethylene resin, with anti-corrosion thermoplastic powder coating, and the coating layer should have excellent chemical resistance, aging resistance, impact resistance, bending resistance, acid and alkali corrosion resistance, weather resistance, cracking resistance, etc., and have strong adhesion, and should not peel off when subjected to external pressure or impact.

appearance

Color: The appearance color is generally eye-catching orange-red, and the pigment is molybdenum chromium red. And can be supplied according to the other color needs of the project unit.

Quality: The protective tube should be rounded, the inner wall should be smooth and clean, and there should be no bubbles and burrs; The appearance should be free of obvious scratches, dents, impurities, and uneven color; The end of the pipe should be cut flat and perpendicular to the axis of the pipe; One end is flared, and the other end is chamfered on the inside, and the hand is smooth. The coating is complete, the color is consistent, the surface is smooth, there is no agglomeration, no bubbles, no cracking.

size

The nominal length of the conduit is expressed as the effective length, which is the distance from the end of the socket to the bottom of the socket, and the nominal length deviation is (0~+0.5%) of the effective length. The length should be determined according to the production process and transportation requirements, and the general value range is 3.0~9.0m. The curvature of the catheter (according to the effective length of the catheter): should not be greater than 0.25% of the effective length. The specifications, dimensions and deviations of hot-dip plastic steel pipes can be customized through negotiation.