The Advantages of Polyurethane Wheels

The Advantages of Polyurethane Wheels 

1. The performance can be adjusted in a large range.

A number of physical and mechanical performance indicators 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 product performance. For example, hardness is often an important indicator for users on products. Polyurethane elastomers can be made into soft printing rubber rollers with a Shore A hardness of about 20, and hard rolling rubber rollers with a Shore D hardness of more than 70. This is difficult for general elastomer materials, and it can suit the needs of different users. Polyurethane elastomer is a polymer material composed of many flexible segments and rigid segments. As the proportion of rigid segments increases and the group density increases, the original strength and hardness of the elastomer will increase accordingly.

2. Superior wear resistance

Under the working conditions of water, oil and other moist media, the wear resistance of polyurethane casters is often several times to ten times that of ordinary rubber materials. Although metal materials such as steel are very hard, they are not necessarily wear-resistant: others such as rice huller rubber rollers for rice milling, vibrating sieve plates for coal preparation, track tracks for sports fields, and dynamic oil seals for cranes and forklifts. Hoops, elevator wheels and roller skate wheels, etc. are also where polyurethane elastomers come in handy. What needs to be mentioned here is that to improve the friction coefficient of medium and low hardness polyurethane elastomer components and improve the wear resistance under load, a small amount of aluminum disulfide, graphite or silicone oil can be added to this type of polyurethane elastomer. lubricant.

3. Various processing methods and wide applicability.

Polyurethane elastomers are molded, mixed and vulcanized (MPU) like general-purpose rubber: they can also be made into liquid rubber, poured and molded or sprayed and potted. Centrifugal molding (referring to CPU) can also be made into pellets, like ordinary plastics, formed by injection, extrusion, calendering, blow molding and other processes (referring to CPU), molded or injection molded parts, within a certain range of hardness

Inside, it can also be used for cutting, grinding, drilling and other mechanical processing. The variety of processing makes the polyurethane elastomer have a wide range of applicability and the application field is constantly expanding.

4. Oil resistance, royal oxygen resistance, aging resistance, low temperature resistance, good sound permeability, strong adhesion, good compatibility and blood compatibility. These advantages are the reasons why polyurethane elastomers are mainly used in military, aerospace, acoustics and other fields.

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