Views: 0 Author: Site Editor Publish Time: 2025-05-08 Origin: Site
In papermaking equipment, BEYOND's engineering plastics such as polyethylene (PE), nylon (PA), polyoxymethylene (POM), polytetrafluoroethylene (PTFE) and polyetheretherketone (PEEK) have become key material choices due to their core advantages such as wear resistance, corrosion resistance, self-lubrication, lightweight and low maintenance. The following is an analysis of its specific applications and advantages:
1.Polyethylene (PE) series
UHMWPE sheets/rods: Excellent chemical inertness, resistant to acid, alkali and organic solvent corrosion, suitable for paper machine scrapers, deflectors, nozzles and other wear-resistant parts. Its excellent self-lubrication (friction coefficient 0.1-0.2) and wear resistance (7-10 times that of steel) can reduce lubrication requirements and extend equipment life.
HDPE sheets: Lightweight (density is 1/8 of metal), used for conveyor belts and slide rails, and meet food-grade safety standards.
2. Nylon (PA)
Nylon gears and seals: Reduce equipment noise and extend the life of transmission components through self-lubrication and impact resistance. MC nylon is used for vacuum box panels and dewatering plates. It has low water absorption and is resistant to hydrolysis, reducing the risk of sticking materials in mixers.
Wear-resistant guide rails: The cylindrical surface design improves material carrying efficiency and reduces the wear of cast stone plates by more than 3 times.
3. Polyoxymethylene (POM)
Gears and valves: high mechanical strength, fatigue resistance (excellent creep resistance), resistant to gamma ray sterilization and organic solvent corrosion, and meets USP Class VI standards.
Low friction coefficient (no lubrication required) adapts to precision transmission systems and improves equipment stability.
4. Polytetrafluoroethylene (PTFE)
Corrosion-resistant coating: excellent chemical stability (resistant to strong acids and alkalis), used on the surface of the pressing roller to prevent pulp adhesion.
Low friction coefficient (0.04) reduces power loss and extends the life of the copper mesh.
5. Polyetheretherketone (PEEK)
High-temperature components: resistant to 260°C and resistant to radiation sterilization, used for aseptic filling equipment and pressure-resistant valves.
Chemical resistance: Resistant to corrosion from papermaking black liquor, replacing metals to reduce equipment weight by more than 30%.
Comprehensive Advantage Comparison
Cost-effectiveness: Engineering plastics are easy to process, and replacing metals reduces manufacturing costs by 30%-50%.
Environmental protection: Recyclable materials reduce the environmental burden of the papermaking industry.
Multifunctional adaptation: Injection molding, extrusion and other processes support complex structural design, covering the entire process of storage, transportation, pressing and drying.
These materials promote the upgrading of papermaking equipment to high cleanliness, intelligence and sustainability through the characteristics of wear resistance, corrosion resistance, biosafety and efficient processing.
