Steel lined polyurethane pipeline Hengyi New Materials

Description :

Steel lined polyurethane pipeline

Polyurethane, short for polyurethane, is a type of polymer material. Polyurethane is an emerging polymer material widely used in many fields. Its performance is also of great significance in chemical engineering and tailings pipeline transportation.

Steel lined polyurethane pipes are lined with a certain thickness of polyurethane anti-corrosion and wear-resistant material on the inner surface of metal pipes, giving them the strength of metal pipes and anti-wear and anti-corrosion properties. Steel lined polyurethane pipelines are ideal pipelines in the transportation industry. Polyurethane lined pipelines are widely used in metallurgical mining process pipelines, tailings transportation pipelines, coal mine washing, coal preparation plant process pipelines, long-distance transportation of finished coal slurry, ash removal transportation pipelines in thermal power plants, chemical water workshop process pipelines, desulfurization and dust removal pipelines, non-metallic mining process pipelines, tailings transportation pipelines, urban water supply and drainage buried pipelines, sewage treatment plant process pipelines, as well as chemical, petroleum, and various pipelines used for anti-corrosion and wear-resistant transportation.

The polyurethane raw material is an active elastic material. After being subjected to stress, the shape change of polyurethane lags behind the stress application time, thereby converting most of the scouring force generated by stress into internal energy and dissipating it in the form of thermal energy. And the remaining small part of the scouring force rebounds back to the conveying medium with the hysteresis deformation of polyurethane, to offset the subsequent stress scouring. Therefore, the clever use of this characteristic of polyurethane reduces the wear and erosion of the wear-resistant layer by the conveying medium through the use of force, thereby achieving durability.

Characteristics of steel lined polyurethane pipeline:

1. Excellent wear resistance: The wear resistance of steel lined polyurethane wear-resistant pipes is generally about 3-5 times that of natural rubber, and the wear value test results are generally in the range of 0.03-0.2mm/m, enjoying the reputation of "wear-resistant rubber" and its distinctive characteristics;

2. Strong corrosion resistance: Polyurethane materials can withstand corrosion from media such as acid, alkali, salt, and seawater;

3. Low project cost; Due to its wear-resistant, anti-corrosion, and aging properties, compared to other rubber pipes, polymer pipes, cast iron pipes, etc., it has a longer service life, lower maintenance rates, and reduces maintenance costs;

4. High tensile strength and tear strength. Under the hardness of rubber, the tensile strength and tear strength of polyurethane elastomers are much higher than those of general rubber; Under the hardness of plastic, their impact strength and bending modulus are much higher than those of plastic; What is valuable is that polyurethane elastomers have good rubber elasticity and elongation under high hardness conditions; The lining in the pipeline undoubtedly increases the service life of the pipeline;

5. Oil resistance: Its oil resistance is higher than that of nitrile rubber;

6. Good seismic performance: This material is lined inside the pipeline, and due to its elasticity of rubber and hardness of plastic, the processed pipeline has obvious seismic resistance;

7. Excellent low temperature resistance: Generally, the low temperature resistance of PE plastic is -30 ℃, and its low temperature resistance range is (-50 ℃~-70 ℃);

8. Aging resistance and long service life: Polyurethane material has strong aging performance, with an aging rate of no more than 0.3% within 50 years; For over 50 years.

9. Easy connection: Both pipes and fittings are connected by flanges, which saves time and effort during on-site installation;

Steel lined polyurethane pipelines are suitable for transporting coarse particles, high-pressure, and high-speed media.

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