How about pu castor new materials, bring the actual experience

All kinds of pu castor and light wheel and aggravating iron wheel, etc, polyurethane products are wear-resisting, good elasticity, impact resistance, corrosion resistance characteristics, the production of polyurethane casters use agile and convenient, durable, in different occasions has abrasion resistance, impact resistance, chemical corrosion resistance, good low temperature resistance, high temperature resistant, driving wheel, protect the floor, little noise quiet performance. 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 into more than 70 Shao Er D rigidity. Pu castor new materials, bring about the actual experience of 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. Found that in the process of the development of the castor wheels can only run on a straight line, the change in the direction of when handling heavy objects are difficult, people invented with a steering wheel structure, namely castor or universal wheel, the invention of the castor for handling efficiency is greatly improved, with the development of the industry is becoming more and more widely, become one of the indispensable parts, castor also became a special industry. Fixed castor castor castor, including activities and activities with brake casters, caster is what we call universal wheel, it can be 360 & deg; Rotating and stationary castor also called directional casters, it has no rotating structure, cannot turn, often are the two castor collocation is used. Castor's main components are: anti-wind cover: to avoid the object into the wheels and the gap between the bracket, can protect the wheel rotational freedom. Brake switch: can lock steering and fixed wheel brake switch device. Supporting frame: installation on the means of transport, connected to the wheels. Wheels, made of rubber or nylon materials, on which the rotation of the transport of goods. Bearing: on steel ball sliding bearing inner bearing to overweight load and energy saving. Shaft: between bearing and racks, bearing the gravity of the goods. Throughout human history, people created many great inventions, these inventions have greatly changed our life, the wheel is one of them, you travel every day, whether it is the bicycle, bus, or drive, these vehicles are accomplished by the wheels. It is hard to research exactly who invented the wheel, one thing is certain, the invention of the wheel is a process of slow evolution, originally a lot of people found rolling than sliding to energy saving. People in heavy logs, through the logs of the rolling transport of goods, later was inspired from logs invented the wheel, the wheels should be and the car is at the same time, a single wheel useless, combination of several of the wheels and axles, can play its biggest role. Hard to phenomenon, assuming that humans did not invent the wheel, whether in ancient or modern, what our society would be like, the role of the wheel is self-evident, but more important is the social significance. The appearance of the wheels, makes the human can not only travel, but also can transport heavy objects to farther afield, so large city and commerce developed, the wheel is the simplest but it is a great invention, the invention of it directly or indirectly determines the development and progress of the society, the appearance of the wheels, apparently, is an important symbol of human civilization progress. Pu castor and cement the bottom friction coefficient is 0. 8 or so. Called the pu polyurethane, is on the main chain containing repeat carbamate groups of macromolecular compounds. It is made of organic diisocyanate or more isocyanate and polyol dihydroxy or addition polymerization. Polyurethane material, the use is very wide, can substitute for rubber, plastic, nylon, etc. , used in airport, hotel, building materials, automobile factory, coal plants, cement plants, senior apartments, villas, garden beautification, colored stone art, park, etc.