In the plastic pipe and steel plastic composite pipe has what difference
There are a lot of steel plastic composite pipe can be classified according to the classification, structure of pipe: steel reinforced plastic composite pipe, seamless steel pipe reinforced plastic composite tube, mesh steel plastic composite pipe and steel mesh skeleton plastic composite pipe. At present, the market is the most popular steel reinforced steel plastic composite pipe, that is we often say that the steel plastic composite pressure pipe, the pipe layer and the middle layer is the steel strip of high carbon steel by curling forming butt welding, the inner and the outer layers are high density polyethylene (HDPE).
The middle layer is a steel pipe, so the pipe bearing performance is very good, is different from the aluminum bearing is not high, the largest diameter pipe can only 63mm, the largest diameter of steel pipe can be done 200mm, even more; the middle layer of the steel tube is sealed, so the steel plastic pipe also has the effect of oxygen barrier, can for direct drinking water projects, and the inner layer and the plastic material, has good corrosion resistance. So excellent performance makes the use of steel plastic composite pipe very extensive, oil, natural gas transportation, industrial and mining pipes, drinking water pipes, drainage pipes, and so on, can be seen in various fields of this kind of pipe.
Inside and outside the plastic pipe, plastic pipe and the inner wall of the steel pipe is thawing polyethylene layer thickness of 0.5 ~ 1.0mm (PE) resin, ethylene acrylic acid copolymer (EAA), epoxy (EP) powder, non-toxic polypropylene (PP) polyvinyl chloride (PVC) or non-toxic organic compounds such as a steel plastic composite pipe, it not only has the high strength steel, easy connection, water impact resistance and other advantages, but also overcome the shortcomings of steel water pollution, corrosion, scaling and plastic tube strength is not high, the performance is poor, life can reach 50 years of design. The main drawback is that the installation can not be bent, hot processing and welding, cutting and other operations, the cutting surface should be used by manufacturers with non-toxic temperature curing gel coating, repair the damaged parts.
