What are the disadvantages of polyurethane?

AURY Polyurethane screen plate is a mesh product produced with polyurethane as raw material.

Because it is for the purpose of screening, it takes on a mesh shape. Its main raw material is made of polyurethane. This emerging plastic raw material ensures the quality of the screen plate and prevents it from easily deforming when separating materials.

AURY Polyurethane Screen Panel is a new type of product developed in recent years that is used to replace metal screen mesh on screening machines such as mine dressing, classification, and dehydration. It is mainly used in coal mines, iron ores, copper mines, gold mines and other ores. Classification, screening, dehydration and other places are one of the necessary accessories for vibrating screens.

Since the use conditions of the screen mesh are very harsh, it not only requires wear resistance, corrosion resistance, and aging resistance, but also must maintain precise mesh and seam sizes during use. In the past, the screen mesh was mainly made of stainless steel, but due to the metal screen plate’s resistance to It has poor wear resistance, elasticity and corrosion resistance, and has high noise, high processing cost and short life. In most cases, it is being replaced by polyurethane screen plate. Compared with metal screen plate, polyurethane screen plate gives full play to the high wear resistance and high performance of polyurethane screen plate. It has the characteristics of elasticity, sound absorption, shock absorption, etc. It has the characteristics of convenient molding and processing, good wear resistance, long service life, high screening quality, strong self-cleaning ability, good screen penetration performance, reduced noise, improved operating environment, and wide application range. It has the advantages of dry material, wet material, raw ore, crushed ore and other materials with different particle sizes, so the prospect of using polyurethane screen plate to replace metal screen plate or ordinary rubber screen plate is promising.

The hole shapes of the sieve plate are: slit, rectangular, round, square

Main application industries: coal washing plants, coking plants, mines, power plants, dredging companies, metallurgy, petroleum, petrochemical and other enterprises

Main application equipment: vibrating screen

The performance of polyurethane screen plates is better than other screen plates.

Its service life is several times that of ordinary screen plates, and the maintenance workload is very small. It will not be damaged even if it is not a big impact. And because polyurethane is used as the raw material, its total cost is very low, so compared with other screen plates, it is more cost-effective. It also has no odor like rubber screen plates, is non-toxic and odorless, and is anti-corrosion and fire-proof.

★Main performance and features

✬It has good wear resistance and long service life. Its wear resistance is 3 to 5 times that of steel screen plates and more than 5 times that of ordinary rubber screen plates.

✬The maintenance workload is small, the polyurethane screen plate is not easy to be damaged and has a long service life, so the maintenance workload and loss of production shutdown can be greatly reduced.

✬The total cost is low. Although the one-time investment of Polyurethane Screen Panel of the same specification (area) is higher (about 2 times) than that of stainless steel screen plates, the service life of polyurethane screen plates is 3 to 5 times that of stainless steel screen plates, and maintenance and replacement are The number of times is small, so the total cost is not high and it is economically very cost-effective.

✬ It has good moisture resistance and can work with water as the medium. In the case of water, oil and other media, the friction coefficient between polyurethane and materials is reduced, which is more conducive to screen penetration, improves screening efficiency, and can avoid wet particles. At the same time, due to the reduced friction coefficient, the wear is reduced and the service life is improved.

✬Corrosion-resistant, non-flammable, non-toxic and tasteless.

✬Due to the reasonable design of the sieve holes and the unique manufacturing process of the sieve plate, particles of extreme sizes will not block the sieve holes.

✬It has good vibration absorption performance and strong silencing ability, which can reduce noise and make the objects on the screen less likely to break during the vibration process.

✬Due to the characteristics of secondary vibration of polyurethane, the polyurethane screen plate has a self-cleaning effect, so the screening efficiency is high.

✬Save energy and reduce consumption. Polyurethane has a small specific gravity and is much lighter than a steel screen of the same size, thus reducing the load on the screen machine, saving power consumption, and extending the life of the screen machine.

However, the manufacturing process of polyurethane screen plates is complex, the noise is high, and the technology is relatively weak. We can choose according to our own needs.

Umair Akram

Umair Akram

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