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Metallurgical equipment ultra-high molecular weight polyethylene wear-resistant lining product information:

■Product Features

Ultra-high molecular weight polyethylene material is a thermoplastic engineering plastic with a molecular weight of more than 2.5 million. Compared with general PE polyethylene, due to its huge molecular weight, it has the following special properties:

1. Excellent wear resistance: UHMWPE material has extraordinary wear resistance. Under characteristic conditions, its wear resistance is 7 times that of carbon steel, 27 times that of brass, 5 times that of nylon 66 and PTFE, and 10 times that of rigid PVC;

2. Excellent impact resistance: UHMWPE material not only has good wear resistance, but also has extremely high impact resistance, its impact strength is greater than 140kg/cm2.

3. Good self-lubrication: the friction coefficient of ultra-high molecular weight polyethylene material is 0.07-0.11. After being used as the lining plate of the closing hopper in the metallurgical industry, basically no sticking and plugging occur;

4. Excellent corrosion resistance: The ultra-high molecular weight polyvinyl alcohol material has excellent corrosion resistance. Except for a few strong oxidants, it is resistant to corrosion by various chemical substances, such as acids, alkalis, salts, etc.; no electrochemical corrosion occurs, and it also has good resistance to various oil stains and harsh environments (ambient temperature exceeds 90 °C). adaptability;

5. Very small water absorption: the water absorption of the ultra-high molecular weight polyethylene material used as the lining plate of the lower closing hopper of the coal bunker in the metallurgical industry is less than 0.1%;

■Product advantages

1. High wear resistance and extremely low friction coefficient to prevent material flow from being blocked;

2. It is almost non-absorbent, it is not wetted by water, and is not moderately affected by the material. Therefore, the material will not stick to the lining wall, and even if it is operated in the special open air, the wet material will not freeze together with the wall of the container due to too low temperature; because the UHMW-PE material has the above advantages, this kind of The material lining can effectively avoid the flow obstruction of bulk materials in silos, chutes and hoppers, and can flow stably and continuously. Especially when the fine bulk material particles are stored and transported, it is more economical and effective to use UHMW-PE material lining, because the fine bulk material particles usually agglomerate and bridge with the increase of fineness and moisture. severe.

3. The ultra-high molecular weight polyethylene (UHMWPE) inner liner has a very low surface friction coefficient, which can make the installation materials with high adhesion and not easy to flow freely flow smoothly. The surface properties of the original structure can be improved by cutting the UHMWPE board to suitable size and fixing the lining board on steel, concrete, mortar material and wood by mechanical means. Through years of practical experience, the phenomenon of material blockage in the silo has been completely solved and the production efficiency has been improved.

Application examples of ultra-high molecular weight polyethylene wear-resistant lining products for metallurgical equipment:

During the storage and transportation of silos, bins, batching room silos and chutes, hoppers, conveying chutes and similar equipment in the sintering plant, they are usually blocked due to material agglomeration, bridging and freezing, resulting in funnel-like flow, ditch formation In severe cases, it will cause arch blockage and bridge blockage, which will lead to the suspension of production links, waste of energy and a series of safety problems in production. Solving these problems will cost a lot of money and precious production time. The most effective way to solve this problem at home and abroad is to use ultra-high molecular weight polyethylene material as lining, and it has been widely used and achieved good results.