PE mining pipe advantages
PE矿用 管材 是以改性超高分子量聚乙烯为原料，经过特殊的挤出机挤出成型的。 The PE pipe for underground coal mine is made of modified ultra high molecular weight polyethylene and extruded through a special extruder. Ultra-high molecular weight polyethylene ( UHMWPE) is a linear structure polyethylene with a viscosity average molecular weight of more than 1.5 million. It is called "magic plastic". It has almost the advantages of various plastics, and has unparalleled wear resistance of other plastics. , Impact resistance, self-lubrication, corrosion resistance, low temperature resistance, non-adhesion, etc. Compared with ordinary mining polyethylene pipes, it has various advantages, especially the impact strength is 4 times that of ordinary polyethylene pipes. the above.
PE mining pipe uses polyethylene resin as the main raw material, adding a suitable amount of additives, and extruded at high temperature.Its performance has both the characteristics of general polyethylene pipes and its own characteristics: antistatic and flame retardant .
管材 抗冲击性居塑料之首，无论是外力强冲击，还是内部压力波动，都难以使其开裂。 PE mining pipes have the highest impact resistance of plastics. Whether it is a strong external force impact or an internal pressure fluctuation, it is difficult to crack it. Its impact strength is 10 times that of nylon 66, 20 times that of polyvinyl chloride, and 8 times that of polytetrafluoroethylene. Its impact strength is 4 times higher than that of ordinary polyethylene. Especially in low temperature environments, its impact strength reaches the highest value. Flexibility can provide extremely safe and reliable guarantee for the conveying system.
管材 的制成材料是 在目前所有的工程塑料中耐磨性 最为优秀的 UHMW-PE，最引人注目。 The PE mining pipe is made of UHMW-PE, which has the best wear resistance among all engineering plastics . The higher the molecular weight, the more abrasion-resistant the material, even more than many metal materials (such as carbon steel, stainless steel, bronze, etc.). Under strong corrosion and high wear conditions, the service life is 4-6 times that of steel pipes, and 9 times that of ordinary polyethylene; and it improves the transportation efficiency by 20%. 管材拉伸强度达到 22～28MPa，断裂伸长率400%以上。 The tensile strength of PE mining pipe reaches 22-28MPa, and the elongation at break is more than 400%. UHMWPE has high chemical stability. Except for some strong oxidizing acids, which can be slightly corroded at high temperatures, other acids and alkalis are not easy to corrode and resist aging.
管材管壁光洁度高、摩擦系数小。 PE mining pipe wall has high smoothness and low coefficient of friction. PE矿用 管材表面与其他材料不易粘附、不易结垢。 The surface of UHMW-PE has very weak adsorption force and strong anti-adhesion ability. Therefore, the surface of PE mining pipes is not easy to adhere to other materials and it is not easy to scale.
管材可直接在母体上翻边用法兰连接，不用再焊接管件，避免了因管件焊接不好而断裂的现象，能节省管件的费用 普通 PE管法兰托连接易掉头 ， PE矿用 管材井下使用寿命超过 20年，经济效益显著。 PE mining pipes can be flanged directly on the mother body and connected by flanges. There is no need to weld pipe fittings, avoiding the phenomenon of fracture due to poor welding of the pipe fittings, which can save the cost of pipe fittings. Common PE pipe flange bracket connections are easy to turn around . The downhole service life of the pipe is more than 20 years, and the economic benefits are significant.