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Wear-Resistant Polyurethane Screen Mesh

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Wear-Resistant Polyurethane Screen Mesh

Polyurethane materials themselves possess excellent wear resistance. Polyurethane screen meshes have good elastic recovery ability. Polyurethane screen meshes have high tensile strength and tear strength. Polyurethane screen meshes have good tolerance to many chemical substances. They have good tolerance to various oils. The mesh holes of polyurethane screen meshes have high precision, which can effectively classify and screen materials. Polyurethane screen meshes are relatively light in weight and are easier to handle and install compared to metal screen meshes.

    product description

    Polyurethane materials themselves possess excellent wear resistance. Their wear resistance is 3 - 5 times that of rubber screen meshes and 8 - 10 times that of metal screen meshes. This is because the polyurethane molecular chain contains a large number of polar groups, and strong hydrogen bonds can form between molecular chains, endowing the material with high hardness and toughness. During the long-term friction with materials, it can effectively resist wear.
    For example, in the mining industry, during the screening process of ores and other materials, polyurethane screen meshes can withstand the impact and friction of ore particles for a long time, greatly extending the service life of the screen meshes.
    Polyurethane screen meshes have good elastic recovery ability. When subjected to the impact of materials, they can quickly return to their original shape, reducing the damage of materials to the screen meshes. Their elastic modulus is usually between 10 - 1000 MPa, enabling them to adapt to different degrees of impact force.
    For instance, in some vibrating screen equipment that requires screening of granular materials, polyurethane screen meshes can undergo elastic deformation along with the vibration and immediately restore their shape after the vibration ends, ensuring the stability and accuracy of the screening process.

    product advantageadvantage

    Polyurethane screen meshes have high tensile strength and tear strength. Their tensile strength is generally between 20 - 50 MPa, and the tear strength is about 40 - 80 kN/m. This high strength enables the screen meshes to withstand relatively large tension and are not easily torn or broken by materials.

    Take the screening of sand and gravel in the construction industry as an example. During the screening process, due to the weight of the sand and gravel and the operation of the screening equipment, the screen meshes need to bear a certain amount of tension. The high-strength characteristics of polyurethane screen meshes enable them to work stably without being damaged due to factors such as the weight of the sand and gravel.

    good tolerance to many chemical substances

    Polyurethane screen meshes have good tolerance to many chemical substances. They can resist the corrosion of chemical media such as acids, alkalis, and salts and can work stably for a long time in an environment with a pH value of 3 - 11. For example, in the chemical industry, for the screening of some materials containing acidic or alkaline components, polyurethane screen meshes will not be easily corroded like metal screen meshes, thus ensuring the screening quality and the service life of the screen meshes.

    good tolerance to various oils

    They have good tolerance to various oils. When in contact with oily substances such as lubricating oil and mineral oil, they will not swell, soften, or other similar phenomena, maintaining the performance of the screen meshes. For example, in some mechanical processing industries, when screening metal debris containing oil stains, polyurethane screen meshes can effectively prevent the oil stains from damaging the screen meshes.

    high precision

    The mesh holes of polyurethane screen meshes have high precision, which can effectively classify and screen materials. The mesh hole size can be customized according to different screening requirements, with a small error range, generally within ±0.1 mm, ensuring the accuracy of screening. For example, in the food industry, when screening grains and other materials, the precise mesh hole size can accurately separate grain particles of different sizes, improving product quality.

    relatively smooth

    The surface of polyurethane screen meshes is relatively smooth, and materials are not easy to block the mesh holes. Moreover, during the vibrating screening process, their elasticity enables some blockages to be more easily shaken off, reducing the frequency of manual cleaning. For example, when screening powdery materials, compared with screen meshes made of other materials, polyurethane screen meshes are less likely to be blocked by powder, maintaining the efficiency of screening.

    Polyurethane screen meshes are relatively light in weight and are easier to handle and install compared to metal screen meshes. They can be fixed in various ways, such as being fixed on the screen frame using rubber strips, pressing plates, etc. The installation process is simple and quick.
    When replacing the screen meshes, operators can easily complete the disassembly and installation work, reducing the downtime of the equipment.
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