Port special care tailpiece, impact plate pier fender panels, ultra-high molecular weight polyethylene has a molecular chain length is high density polyethylene 10 to 20 times. Longer chains (higher molecular weight) to give the main advantage of UHMWPE toughness, abrasion resistance and resistance to stress cracking. Because it is a kind of polyethylene, UHMWPE also has lubricity, chemical resistance and excellent electrical properties of HDPE GM. Long molecular chains of the material in general difficult molding and extrusion processing equipment. Heated to above the melting point, UHMW become transparent, but does not flow. Chemical and performance UHMWPE is produced by Ziegler polymerization. Process requires a particularly high purity, impurity control in ethylene monomer few parts per million. Product is a white powder, similar to particle size and salt. The polymer solution viscosity by the method to detect, thus calculating intrinsic viscosity (IV) and molecular weight (MW). UHMWPE according to ASTM define its molecular weight (MW) greater than 300 million. Existing grade of UHMWPE to 600 MW at 300 million. Generally classified according to IV, IV to 20dl. / G approximately equal to the MW of 300 million. IV for 30 MW of 600 million, said. Some grades contain additives, the final application for the special. Typically, UHMW material without additives, and without sintering and forging stabilizer system. In the processing conditions, including temperature, holding pressure at 392F in the hours and 0.5 if t / square inch or higher pressure conditions, UHM3V can be cured into a block, plate or simply extruded. Under these conditions, oxidative cross-linking will occur. If most of the material has become insoluble by crosslinking, UHMWPE in IV value can not be accurately measured. Crosslinked with peroxide to enhance the wear resistance appropriate. UV-or heat resistance can be extended by adding UV stabilizers or antioxidants to achieve. UHMWPE has some exceptional properties, especially wear resistance (10 times better than steel), and low temperature (even colder than liquid nitrogen) toughness. UHMW bearing for low speed. Add siloxane, aluminum disulfide, graphite and special wax, so that the lower coefficient of friction is further reduced. In the food processing industry, UHMW self-lubricating, easy cleaning, low gas smell / taste transfer and resistance to boiling water to be used. Has met the FDA and USDA requirements for food, water and medicines work. Some of UHMWPE is based on its use of suction noise and shock absorption. If you need UHMW available dye color, but slightly worse with some paint. Some researchers have developed processing of UHMW plastic or screw extrusion technology. Restructuring of the equipment used according to specifications and design of simple thick-walled parts in injection molding has been limited success. In the attempt to lead screw extruded polymer degradation or damage to equipment. For UHMWPE is the most common compression molding process technology. Use a large hydraulic press to produce 50Sq ? ft. Size and thickness of the plate number of inches. Thin sheet or strip is usually short sections or pieces of material to produce. Thick extruded material can be used by a reciprocating push rod feeding with specialty die residence time of feeding. Forging technology has been developed, under the hot pressing at about 390F in the hot mold and compression. UHMWPE can be hot plate welding or spinning welding together. Sheet metal can be heated to 302T impact on the impact of the device. The formation of adhesive joints subjected to shear the system value of 6.3MPa. Use sharp tools and cooling, UHMW easier processing. For more book sections or parts with more precise, mechanical method is commonly used processing methods. Process, such as drilling, grinding, rotary, saw, plane, and thread cutting for routine processes. Production operation for a long time, it is recommended to use carbide tools. Several processes based on blends of UHMWPE and oil-based. The formation of the gel can be extruded normal plastic extruder processed into sheets or filaments. Separate the oil from the plate to become porous material, suitable for cell isolation plate or membrane. Filament in the direction from the gel and separation characteristics of the oil to produce a drawing of God is superior to steel for some of the properties of UHMWPE fiber applications very different purposes. It is motorized sled for the wind and snow gear, and drum machines of the impeller, on these occasions, the use of UHMWPE low temperature toughness, corrosion resistance and lubricity. In the mining industry, UHMW chute and hopper for the sliding surface, the use of its excellent abrasion and chemical resistance. A new generation of automatic unloading ore carriers, freight trains and trucks may be applied UHMWPE, because of its smooth surface, non-stick and wear resistance. These features make it also be used for agricultural and earthmoving machinery, steel with UHMW material protection. Chemical resistance and surface smoothness of the composite can involve a number of uses. Food processing industry as a meat such as UHMW-PE surface with the plate material, non-porous surfaces where necessary. Processing of food and medicine for conveyors with UHMWPE contact surface and roll, self-lubricity, chemical resistance, resistance to boiling water and detergent performance. To extend the service life and to run smoothly, bottling production line perfusion system synchronization is often used UHMWPE and teeth with screw feeder. UHM3VPE in the paper and waste water treatment industry for bearings, dehydration floor, slide and filter. Porous UHMWPE as cell separator, showing excellent corrosion resistance materials. UHMW high-strength fiber is a newly developed materials currently in development. This fiber has been used in sailing competitions, where the requirement that materials with anti-mildew and parts made of dimensionally stable and lightweight with overall performance. This fiber is also used as a composite structure of reinforcing material.