In the municipal pipe market, plastic pipes are developing steadily. Plastic pipes replace traditional cast iron pipes and cement pipes in terms of water supply, gas supply and sewage application. PE, PP-R and UPVC all have a place in the market, of which PE pipes are more Because the flexibility of PE has always been considered as one of the important characteristics of pipes, the flexibility of PE can give PE advantages compared with other materials: easier pipe connection, quicker installation, and less impact from earthquakes. It is easier to add lining and so on. In recent years, in view of the physical properties, PE is more and more widely used in pressure pipes (such as water supply pipes and air supply pipes), and non-pressure pipes (such as t-cable protection pipes: PE corrosion resistance, light weight, etc. are also a substitute for the tradition. An important reason for tubing. The emergence of polyethylene material PElO0, since the 1950s, high-density polyethylene (PE63 and PE80) and subsequent medium-density polyethylene (PESO) pipes, namely high-density polyethylene pipes, have been coated with natural gas, water, sewage and A variety of other fluids. With the development of high-performance PE, the material properties are continuously improved, and the performance of the new type of polyethylene phthalate is significantly improved, providing a new generation of materials for pipeline manufacturing. In the late S0s, PElO0 was founded by Solvay Polyolefins in Europe, and PElO0 represents a milestone in the connection between environmental stress cracking and rigidity. Performance characteristics of PE100: PElO0 means at 20. Under the condition of C, the polyethylene pipe can maintain the minimum necessary strength of IOMPa after 50 years. PE is a plastic whose properties depend on the distribution of the short chain, its molecular weight and its distribution, and its semi-crystalline structure. Molecular weight is a major factor in determining the relevant properties of a polymer, such as long-term strength, toughness, plasticity, and fatigue. The molecular weight and its distribution play an important role in the rheological properties of the three processability. The molecular weight and short chain determine the mechanical properties of the pipe. Its short-term properties are explained by the crystalline state of the hardness stone; while long-term properties such as environmental stress cracking depend on the degree of involvement of the long-chain in the amorphous form. For the application of bismuth, stiffness and stress crack resistance are the most important performance indicators. In the design of materials, these two properties are required to reach PElO0 with bimodal distribution, two polyethylene molecules, one very Short, while the other is quite long, the high molecular weight chain peaks are distributed and more molecules are attached. This structure gives the resin excellent physical properties while retaining good processability, to creep resistance, The perfect combination of crack resistance and good processability. Application performance of PE100: Polyethylene 100 resin can maintain the lowest strength of lOMPa after 50 years, and the pressure resistance of PE80 and previous resin is higher than that of the previous resin. The use of PElO0 can enhance the conveying capacity of water and natural gas pipelines. PElO0 is effective in crack resistance and fastness, ensuring the safety and reliability of the pipe under extremely high pressure. Many users are concerned about the slow crack growth of PE pipes, that is, the cracks of pipes slowly increase over a long period of time. The initial value and growth of the wall cracking of the grain is determined by the combined results of internal pressure, residual stress in the pipe, installation stress and soil. Once cracking occurs, it will slowly grow, and the rate of growth depends on the ability to cause cracking forces and tube splitting. The reason why the wall is fragile due to the occurrence of cracking can be explained as: the joint of the microcrystals is not disintegrated, and the molecular structure is in a chaotic state. While PElO0 contains a relatively high number of linking molecules, it provides good crack resistance. In addition, for the manufacture of large-diameter water and water pipes (including roof drainage), the use of thinner walls has special advantages. On the one hand, it can save material (10 节约 save water collateral can save 1/3), on the other hand, it can enlarge the cross-section area of ​​the pipe. When repairing the pipe, when the pipe is used to make extravagance using the insertion arm, the cross-sectional diameter of the original pipe is reduced, reducing its conveying capacity. However, such losses can be avoided by using the way that the thickness of the liner is still reduced. The application prospect of PE100 PE100: PElO0 has the excellent performance of the capsule, and its mechanical properties are obviously improved, which makes PElO0 have many special advantages. Since the advent of PElO0, its series of products have been rapidly around the world. is widely used. · PElO0 (Suwe series components) is recognized and practically applied by many natural gas companies and water tanks in Europe. Some oilfields in China have been used as oil pipelines, and the old pipelines have been repaired as internal lining pipes in the old pipeline network replacement project. China's urban airbags will soon be made of artificial coal gas and liquid fossils. Sleeve gas is the main development of natural gas. Many cities are facing the problem of gas source conversion and the expansion and reconstruction of the city's social record. The selection of pipe is an important part. We are convinced that the emergence of PE100 will be selected for the majority of users. The sturdy coffin provides more space for the ding. Permanent Magnet,Strong Magnet,Motor Magnet Hawell Magnetics Co., Ltd. , http://www.nbdfebmagnetic.com