Professional processing and manufacturing of ultra-high molecular weight polyethylene custom parts and polyethylene wear-resistant partsProfessional processing and manufacturing of ultra-high molecular weight polyethylene custom parts and polyethylene wear-resistant parts
Ningjin Xinxing Chemical Co., Ltd. in Shandong Province warmly welcomes you to visit our factory for guidance and inspection!
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Ultra-high molecular weight polyethylene engineering plastic is a miraculous engineering plastic that possesses excellent properties such as lightweight, impact resistance, wear resistance, corrosion resistance, UV resistance, aging resistance, low friction coefficient, non-toxicity, pollution-free, not easily adhered by foreign substances, vibration and shock absorption, and noise reduction. It is a material that can replace metal materials such as steel, aluminum, and copper. Various products made from this material can directly replace metal products without changing the original design dimensions. The strength, rigidity, fatigue resistance, and other properties meet the requirements.
The nine major characteristics of ultra-high molecular weight polyethylene sheets:
• (1) Self-lubrication Ultra-high molecular weight polyethylene sheets (UHMWPE) have an extremely low friction coefficient (0.05-0.11), thus exhibiting excellent self-lubrication. The dynamic friction coefficient of UHMWPE under water lubrication conditions is half that of PA66 and POM, and under dry conditions, it is only second to the self-lubricating plastic PTFE; when working in sliding or rotating forms, it has better lubrication than steel and brass with lubricating oil.
• (2) Non-stickiness The surface adhesion of ultra-high molecular weight polyethylene sheets (UHMWPE) is very weak, and its anti-adhesion capability is only second to the non-stick PTFE among plastics, making it difficult for the product surface to adhere to other materials.
• (3) Hydrophobicity UHMWPE has a very low water absorption rate, generally less than 0.01%, only 1% of PA6, so it usually does not require drying treatment before molding and processing.
• (4) Wear resistance UHMWPE has the highest wear resistance among plastics, exceeding that of certain metals. Compared to other engineering plastics, the mortar wear index of UHMWPE is only 1/5 of PA66, and 1/10 of HDPE and PVC; compared to metals, it is 1/7 that of carbon steel and 1/27 that of brass. Such high wear resistance makes it difficult to test its wear level using common plastic wear testing methods, leading to the design of a special mortar wear testing device. The wear resistance of UHMWPE is proportional to its relative molecular weight; the higher the relative molecular weight, the better the wear resistance.
• (5) Impact resistance The impact strength of UHMWPE ranks among the top in all engineering plastics, being about twice that of impact-resistant PC, five times that of ABS, and over ten times that of POM and PBTP. Its high impact strength makes it difficult to break using conventional impact testing methods. The impact strength increases with the increase of relative molecular weight, reaching a maximum at 1.5 million, and then gradually decreasing as the relative molecular weight continues to increase. Notably, it maintains excellent impact strength even at liquid nitrogen temperatures (-196℃), and its surface hardness increases after repeated impacts.
• (6) Acid and alkali resistance Apart from strong oxidizing acids, it can withstand various corrosive media (acids, alkalis, salts) and organic media (except naphthalene solvents) within certain temperature and concentration ranges.
• (7) Shock energy absorption The shock energy absorption value is high among all plastics, providing excellent noise damping and sound insulation effects.
• (8) Low-temperature resistance It exhibits outstanding low-temperature performance, remaining ductile at liquid nitrogen temperatures (-269℃), making it suitable for use as low-temperature components in the nuclear industry.
• (9) Sanitary and non-toxic Fully compliant with the standards of the Japan Sanitation Association, and recognized by the U.S. Food and Drug Administration and the U.S. Department of Agriculture, it can be used in contact with food and drugs.
Ultra-high molecular weight polyethylene sheets are a type of thermoplastic special engineering plastic. They combine the superior properties of all plastic materials and represent high value among existing engineering plastics. With the advancement of technology in the plastic processing industry, the application fields of ultra-high molecular weight polyethylene will continue to expand.
Now let's introduce the practical applications of ultra-high molecular weight polyethylene sheets in various industries:1. Paper industry: Vacuum box panels, dewatering boards, scraper blades, sealing strips, paper cutting machine bushings, etc.
2. Beverage and food machinery: Utilizing wear resistance, impact resistance, non-stick, and sanitary non-toxic properties to produce work tables, conveyors, gears, etc.
3. Water treatment: Sludge scrapers for sewage treatment plants, screw conveyor liners, slurry pump impellers, pump shaft sleeves, clarifier gears, and sedimentation tank liners, etc.
4. Textile machinery: Utilizing impact resistance, wear resistance, and self-lubrication properties for gears, shuttle, buffer baffles, bearing bushings, etc.
5. Medical devices: Human implants, artificial joints, orthopedic instruments and braces, surgical instruments.
6. Automotive manufacturing: Ultra-high molecular weight polyethylene products not only reduce the number of parts but also play a significant role in noise reduction. Manufacturers should utilize the molding characteristics of ultra-high molecular weight polyethylene products to integrate multiple parts into one, reducing the number of components, and aim to achieve complex parts in one molding. The usage of ultra-high molecular weight polyethylene in automobiles is on the rise annually.
7. Due to its extremely low friction coefficient, high impact strength, low water absorption rate, excellent self-lubrication, and outstanding corrosion resistance, it can be used in coal bunkers, material bins, blend chutes, and dump truck liners.
8. Transport machinery: Guide rails, conveyor belts, sliding blocks for transfer devices, fixed plates, timing star wheels for assembly lines.
9. Food machinery: Star wheels, bottle counting screws, filling machine bearings, bottle grabbing machine parts, washer guide pins, cylinders, gears, roller chain wheel handles.
10. Paper machinery: Water absorption tank covers, deflection rollers, scrapers, bearings, nozzles, filters, oil storage devices, anti-wear strips, felt cleaning machines.
11. Textile machinery: Open width machines, vibration dampers, connectors, crank connecting rods, edging rods, flower picking needles, deflection shaft sleeves, swinging rear beams.
12. Construction machinery: Push plates for bulldozers, materials in dump truck compartments, and tractor blade liners.
13. Chemical machinery: Valve bodies, pump bodies, gaskets, filters, gears, nuts, sealing rings, nozzles, rotary valves, shaft sleeves, corrugated tubes.
14. Port machinery: Ship components, edge support rollers for bridge cranes, wear-resistant blocks and other parts.
15. General machinery: Various gears, bushings, liners, sliding plates, clutches, guide bodies, brakes, hinges, elastic couplings, roller supports, fasteners, and sliding parts for lifting platforms.
16. Dyeing and finishing: Bearing for dyeing machines, sliding plates for scrapers, pads, seals, and width guide plates.
17. Large cranes and heavy machinery: Placed under the legs of large cranes for support.
Ningjin Xinxing Chemical Co., Ltd. in Shandong Province is equipped with 8 large hydraulic presses, 4 new electric cutting machines, 3 thickness testers, 4 CNC engraving machines, 4 large milling machines (6m x 2m), and 2 small drilling and milling machines, along with 6 bench drills. With a strong technical team and solid technical knowledge, as long as it is ultra-high molecular weight polyethylene material, we can accurately process various custom parts as long as you can provide the drawings!
