Pu castor, is what material?

Polyurethane material is short for polyurethane, English name is polyurethane, it is a kind of polymer material. Polyurethane (pu) is a new kind of organic polymer materials, has been hailed as a & quot; The fifth big plastic & quot; , because of its excellent performance and is widely used to national economy numerous fields. Products are involved in the application of light industry, chemical industry, electronics, textile, medical, construction, building materials, automotive, defense, aerospace, aviation, etc. In the castor industry is emerging a new type of polyurethane caster and let us know about the below. Pu castor, is what material? Pu castor elastomer with good wear resistance, resistance to chemical attack, high strength, high elasticity, strong resistance to low pressure, shock absorption, tear resistance, radiation resistance, high load and shock absorption, etc. Good performance. Polyurethane casters at the same time have a wide range of hardness, from shaw A10 - - - - - - - 100. Currently on the market has been beyond the shaw A100 or above products. In addition, the superior sound-absorbing properties of the pu castor wheels in the process of movement does not produce noise, can be silent. These characteristics of PU wheel, very suitable for as castor material. Pu castor the performance of the main advantages of wide adjustable range. A number of physical and mechanical performance indexes can be adjusted through the selection of raw materials and formulations, flexible changes within a certain scope, so as to meet the unique requirements of users on the product performance. Such as hardness, is often the user an important index of products, polyurethane elastomer can be made into Shao Er A hardness of the 20 or so soft printing rubber roller, and can be made more than 70 Shao Er D rigidity rolling roller, this is the general elastomer material is difficult to do, can suit the needs of different users. Polyurethane elastomer is composed of many flexible chain segment and rigid chain segments of the polarity of polymer materials, with the improvement of rigid chain segment ratio and the increase of density of polar group, elastomer original strength and hardness will be increased accordingly. 2, wear-resisting performance is superior. In the presence of water, oil and other wetting medium work conditions, the wear resistance of polyurethane casters are often several times to dozens times of ordinary rubber materials. Metal materials such as steel, although very hard, but not a - The wear-resisting; Other rice huller rubber roller, such as milling, coal preparation with sieve sieve plate, stadium track the runway, forklift truck crane dynamic oil seal, elevator wheels and wheel roller skates, etc are also polyurethane elastomer. Need to mention here is that to improve the low and middle hardness, the friction coefficient of polyurethane elastomer parts, improve the bearing under the load of wear-resisting performance, can add a small amount of sulfide in this type of polyurethane elastomer aluminum and graphite or silicone oil lubricant. 3, processing methods diversity, wide applicability. Polyurethane elastomer can be the same as general rubber plastication, mixing and vulcanization process molding ( The MPU) ; Also can be made into liquid rubber, mould pressing or spraying, sealing, centrifugal casting molding ( The CPU) ; Can also be made from grain, like ordinary plastic material, in process such as injection, extrusion, calendering, blow molding, The CPU) 。 Mold or injection molding parts, in a - The hardness of range, cutting, grinding, drilling and other mechanical processing. The applicability of the process, the diversity of the polyurethane elastomer is very extensive, application domain expands unceasingly. 4, oil resistance, ozone resistance, aging resistance, radiation resistance, good low temperature resistance, good acoustic, stick relay is strong, biological compatibility and blood compatibility. Good. These advantages is polyurethane elastomer in military industry, aerospace, acoustics, and biology extensively in the fields of application. Users should recognize when using pu castor castor and its accessory products bearing the weight, choose appropriate load castor for use. Before use to anticipate to carry weight, select the caster and its supporting products bearing the weight bearing weight should be greater than 1. More than 5 times. According to different use place choose different material of castor: caster wheel in different materials have different physical and chemical properties. Castor material is different, use place environment is different, can lead to the service life of the castor is different. The user should know when using castor castor suitable for use, avoid to cause unnecessary loss. Castor for effective maintenance: users should regularly to maintain functioning part of the caster. Maintenance is divided into lubricating and cleaning operation of the site and entanglement and good anticorrosion, specific as follows: the caster wheel bracket steel ball running parts, wheel bearing running parts should add lubricating oil regularly. For regular cleaning wrapped around the caster stents ball running parts, wheel bearing cloud parts of winding or thread; Most castor bracket is made of metal, corrosion prevention is very important for the service life of castor, prevent rusting caster stents can daub antirust paint, rust-proof oil on a regular basis.