PE water supply pipe is a commonly used water supply pipe. Due to its good flexibility and high pressure resistance, it has become a common pipe material for modern water supply and drainage. However, it is sometimes found that the surface of the PE water supply pipe is rough and does not meet the qualified standard. There are many reasons for the rough surface of pipes. Therefore, only when the root cause is clear can a targeted solution be taken to make the PE water supply pipe have a high-quality surface. If the PE water supply pipe is made of new materials, the reason for the rough surface of the pipe caused by the moisture in the raw material can be eliminated; if the PE water supply pipe roughness only appears in a thin layer of the surface, it may be formed in the mold section. The surface roughness of the PE water supply pipe is caused by the friction between the melt and the surface of the mold, and has nothing to do with the surface roughness of the mold. For high-viscosity polyethylene, due to the strong entanglement between molecular chains, the surface of the PE water supply pipe is very rough, and it is not easy to separate from the melt and cannot form effective lubrication. So, if you want to be smooth, you have to add another lubricant.
