Features of Polyurethane Covered Wheels

Features of polyurethane covered wheels

1. The physical properties of polyurethane can be flexibly changed within a certain range through the selection of raw materials and the adjustment of formula, so as to meet the unique requirements of users for the performance of rubber-covered wheels. Many users have special requirements for an important index of the product, such as hardness. Polyurethane elastomers can be processed into soft paper pulleys around Shore A40, and can be processed into hard load wheels above Shore D80. Materials that are difficult to achieve, polyurethane covered wheels can suit the needs of different users.

2. Good wear resistance.

In the presence of wet media such as water or oil, the wear resistance of polyurethane covered wheels is several to ten times that of ordinary rubber materials. Although other materials are very hard, they do not have elasticity and are not necessarily wear-resistant. Polyurethane still maintains a certain degree of elasticity in the case of high hardness, which also determines that it has outstanding cushioning and wear resistance. For example, rice hulling rollers for rice milling, The use of other hard materials will first destroy the grain and is not wear-resistant, and the polyurethane coated roller does not damage the grain and is wear-resistant. Elevator wheels and roller skate wheels, etc. are also applied polyurethane elastomers.

3. It can be processed in a variety of ways and has a wide range of applications.

Polyurethane rubber-covered wheel elastomer casting and compression molding or spraying, potting, centrifugal molding (referring to pouring type or CPU); it can also be made into pellets, which are formed by injection, extrusion, calendering, blow molding, etc. like ordinary plastics (refers to TPU or extruded). Molded or injection-molded parts can also be machined for cutting, grinding, drilling, etc. within a certain hardness range. The diversity of processing makes the applicability of polyurethane elastomers very wide, and the application fields continue to expand.

4. Oil resistance, hydrolysis resistance, ozone resistance, aging resistance, radiation resistance, low temperature resistance, good sound permeability and strong bonding ability. These advantages are why polyurethane rubber-covered wheel elastomers are widely used in military, aerospace, logistics, automation and other fields.

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