A good pipe for HDPE winding pipe should not only have excellent economy, but also have a series of benefits such as stable and reliable interface, impact resistance, cracking resistance, aging resistance, corrosion resistance, etc. Compared with traditional pipes,

(1) Reliable connection: The electric hot melt method is used to connect the polyethylene pipeline system, and the strength of the joint is higher than that of the pipeline body.

(2) Good low temperature impact resistance: The low temperature embrittlement temperature of polyethylene is extremely low, and it can be used reliably in the temperature range of -60-60 ° C. During winter construction, due to the good impact resistance of the materials, pipe embrittlement will not occur.

(3) Good stress cracking resistance: HDPE has low notch sensitivity, high shear strength and excellent scratch resistance, and its environmental stress cracking resistance is also very good.

(4) Good chemical corrosion resistance: HDPE pipes can resist corrosion of various chemical media, and chemicals present in the soil will not cause any degradation effect on the pipes. Polyethylene is an electrical insulator, so it will not be pedantic, rusting or electrochemical corrosion; in addition, it will not add algae, bacteria or fungi to grow.

Nonetheless, there is the release of harmful substances during incineration.

(5) Aging resistance and long service life: Polyethylene pipes containing 2-2.5% evenly distributed carbon black can be stored or used outdoors for 50 years without being harmed by ultraviolet radiation.

(6) Good wear resistance: The wear resistance of HDPE pipes and steel pipes shows that the wear resistance of HDPE pipes is 4 times that of steel pipes. In the field of mud transportation, compared with steel pipes, HDPE pipes have better wear resistance, which means that HDPE pipes have longer service life and better economy.

(7) Good flexibility: The flexibility of HDPE pipes makes it simple and tortuous. In engineering, obstacles can be bypassed by changing the direction of the pipes. In many occasions, the flexible work of the pipes can reduce the amount of pipe fittings and reduce equipment costs.

(8) Low water flow resistance: HDPE pipes have a smooth inner surface with a Manning coefficient of 0.009. The smooth performance and non-adhesion characteristics ensure that HDPE pipes have higher transportation capabilities than traditional pipes, and at the same time reduce the pressure loss of the pipeline and the energy consumption of water delivery.

(9) Convenient handling: HDPE pipes are lighter than concrete pipes, galvanized pipes and steel pipes. It is easy to handle and equipment, and the lower manpower and equipment requirements mean that the equipment cost of the project is greatly reduced.

(10) A variety of new construction methods: HDPE pipelines have a variety of construction technologies. In addition to the traditional excavation methods for construction, a variety of new non-excavation technologies such as pipe jacking, directional drilling, lining pipes, and cracked pipes can also be used. Therefore, HDPE pipelines are more widely used. This product can be green and environmentally friendly in the process of production, use and recovery. First of all, the production process of this product does not have waste gas, waste water and waste, which is environmentally friendly; the production process of cement materials required for cement pipelines and the production process of cement pipelines themselves seriously pollute the environment and become a key treatment policy for environmental protection departments. Secondly, waste plastic pipes can be recycled and reused. To incinerate it, only carbon dioxide and water vapor are generated, and no other harmful gases are emitted.