In modern industrial activities Sandblasting pipe Its application is very extensive, especially in shipbuilding, machining, spraying industry and so on. Under the condition of strong corrosion and high wear, the sand blasting pipe fully demonstrates the advantages of "energy conservation, environmental protection, economy and efficiency". Because the sandblasting pipe has the minimum necessary strength of 10MPa, it has more advantages in use. What conditions need to be met if it wants to be well applied in practical applications?

The function of sand blasting pipe depends largely on its semi crystalline layout. Its short-term strength, impact strength, tensile strength and hardness are mainly limited by the crystalline phase of the data; However, its long-term strength, such as resistance to environmental stress cracking, depends on the chain entanglement molecules in the amorphous region.

1 Service temperature: the service temperature of the hose is - 20-70 ℃.

2 Material and structure: The sand blasting pipe shall be composed of the following parts: inner lining (inner rubber layer); Reinforcing layer of natural or synthetic fabric laid by appropriate method; Outer coating (outer glue layer); Among them, the reinforcement layer mostly adopts the adhesive cloth method and cord winding method.

3 Hydraulic requirements: the working pressure of the hose is 0.63MPa. The hose shall be free from water seepage, local bulge, expansion and other abnormalities when conducting hydraulic test under twice the working pressure. Keep the pressure of anti-static hose for 1min, and the length change shall not exceed ± 0.8%, the outer diameter change shall not exceed ± 10%, and the torsion per meter shall not exceed 60&ordm. The bursting pressure of the hose shall not be less than 4 times of the working pressure.

What aspects of sandblasting pipe affect its resistance

Generally speaking, the development of the pipe industry is relatively fast. The demand of different industries directly determines the development of the pipe industry. Sand blasting pipe is a typical example. In practical application, we found that the sandblasting pipe has a very strong resistance. Today we need to understand the aspects that affect its performance:

1 The service life of sand blasting pipe is 6-10 times that of steel pipe under strong corrosion and high wear conditions, which fully demonstrates the advantages of "energy conservation, environmental protection, economy and efficiency".

2 Ultra high molecular weight Sandblasting pipe The impact resistance and absorption of impact energy of nylon 66 are the first among plastics. It is difficult to crack the plastic, whether it is impacted by external force or shaken by internal pressure. Its impact strength is 10 times that of nylon 66, 20 times that of PVC, and 4 times that of polyethylene. Its flexible function provides an extremely safe and reliable guarantee for the transportation system.

3 Because the sandblasting pipe has a minimum necessary strength of 10MPa, which is more pressure resistant than other polyethylene, it can transport gas and liquid under high pressure. Generally, the polyethylene pipe data is graded according to SDR (SDR=nominal outside diameter/nominal regular wall thickness). The greater the SDR, the higher the grade.

4 The function of sand blasting pipe depends largely on its semi crystalline layout. Its short-term strength, impact strength, tensile strength and hardness are mainly limited by the crystalline phase of the data; However, its long-term strength, such as resistance to environmental stress cracking, depends on the chain entanglement molecules in the amorphous region.