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What Methods Are Used to Determine the Friction Coefficient of Polyurethane Casters?

What Methods Are Used to Determine the Friction Coefficient of Polyurethane Casters?

Nov. 13, 2020

The extensive use of PU Castor Wheels not only promotes the progress of society, but also has a great influence on the development of our lives; for example, polyurethane castor wheels in our furniture, polyurethane castor wheels in chairs, and in industry Some large-scale machinery has now followed the polyurethane casters for the convenience of movement. It is conceivable how much convenience the use of polyurethane casters has brought us. Among the polyurethane casters we see in our lives, it is not that they can be used after being produced. They can also be boxed, packaged, and used after a series of tests.

1. Resistance performance test:

When testing this performance, the polyurethane casters should be kept dry and clean. Place the polyurethane casters on a metal plate on the edge of the ground, keep the wheel edges in contact with the metal plate, and load 5% to 10% of its nominal load on the polyurethane casters. . Use an edge resistance tester (the nominal open-circuit voltage is 500V, the measured resistance value fluctuates within 10% and the loss on the product does not exceed 3W) to measure the resistance value between the polyurethane caster and the metal plate. For conductive polyurethane casters, the resistance value should not exceed 104 ohms, while the resistance of antistatic polyurethane casters should be between 105 ohms and 107 ohms.

2. Impact test:

Any item due to transportation, use, storage, and other conditions may produce impact and vibration, which will make the product unable to be used normally for a certain period of time. Furniture is often vulnerable to impact due to its large size and weight. The polyurethane at the bottom determines whether the furniture is stable. Casters should have good impact resistance.

Pu Castor Wheels

Pu Castor Wheels

3. Static load test:

Industrial PU Wheels should always run stably on the ground, but that is almost a purely theoretical state. On uneven surfaces, or when crossing thresholds, tracks, and pits, the polyurethane casters will leave the ground briefly. So when they are suddenly overloaded or when three of the four polyurethane casters touch the ground, they must carry the load of the entire furniture.

The development of the polyurethane caster industry is a systematic project. Supporting the efficient operation of this system must include at least the following aspects: financial support. The polyurethane caster industry is a typical capital-intensive industry. To form economies of scale, a certain investment threshold must be reached. With the improvement of technology, the investment threshold is rising. At the same time, in order to meet the needs of process research and development, capacity expansion and upgrading, the integrated circuit industry also needs continuous investment. Market support. If an integrated circuit company wants to survive, it must produce products that meet market demands, continuously obtain orders from customers, and establish a market-oriented sales team and sales network is crucial. Technical Support. The process technology and chip design capabilities to be possessed have a number of independent intellectual property rights and patents. Talent support. It is necessary to cultivate a team of process technology, chip design and management talents to ensure continuous innovation of technology and products and efficient operation of the enterprise. Management support. The management of industries and enterprises should start with strategic decision-making, capital management, logistics management, and talent management.