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- home > Supply > The supply of new limited edition "port fender board port crash board" port fenders, bumper plates "
The supply of new limited edition "port fender board port crash board" port fenders, bumper plates "
Information Name: | The supply of new limited edition "port fender board port crash board" port fenders, bumper plates " |
Published: | 2012-02-01 |
Validity: | 365 |
Specifications: | |
Quantity: | 0.00 |
Price Description: | |
Detailed Product Description: | Port dedicated care tailpiece, the impact plate pier fender panels, ultra-high molecular weight polyethylene has a molecular chain length is 10 to 20 times that of the high-density polyethylene. Longer molecular chains (higher molecular weight) to give of UHMWPE main advantage of toughness, wear resistance and resistance to stress cracking resistance. Since it is a kind of polyethylene, UHMWPE has lubricity, chemical resistance and excellent electrical properties of the generic HDPE. Long molecular chains to make the materials difficult to machine in a common molding and extrusion equipment. Heated to above the melting point of UHMW become transparent, but does not flow. The chemistry and properties of UHMWPE is legally produced with Ziegler polyethylene. Processing requirements of particularly high purity ethylene monomer impurity control in a few parts per million. The product is a white powder, similar particle size and salt. The polymer solution viscosity method to detect the basis of intrinsic viscosity (IV) and molecular weight (MW). UHMWPE according to ASTM definition of the weight average molecular weight (MW) greater than 3 million. Existing UHMWPE grades of MW between 300 to 600 million. Generally in accordance with Category IV, IV 20dl. / G is approximately equal to MW to 3 million. IV of 30 MW to 600 Million. Some grades contain additives for a particular end-use applications. Typically, UHMW material without additives, and can no stabilizer sintering and forging. Processing conditions, including the hour and 0.5 tons / square inch or higher pressure conditions, UHM3V can be solidified into a block, plate, or a simple extrusion pressure in the 392F temperature. Under these conditions, the occurrence of some oxidative cross-linking. If most of the material due to the cross-linked to become insoluble, of UHMWPE IV value can not be accurately measured. The appropriate cross-linked with peroxide for the enhanced wear resistance. UV resistance or to extend the heat resistance add UV stabilizer or antioxidant. UHMWPE has some extraordinary performance, in particular, is the wear resistance (10 times better than carbon steel), and low (even colder than liquid nitrogen) toughness. UHMW used for low-speed bearing. Join siloxane, disulfide, aluminum, graphite and special paraffin, to further reduce the low coefficient of friction. In the food processing industry, of UHMW self-lubricity, easy purification, low gas smell / taste of transitivity and resistance to boiling water be utilized. Has complied with the FDA and USDA requirements for food, water and medicines work. Some of the uses of the UHMWPE is based on the absorption of noise and shock absorption. If you need UHMW available dye coloring pigment slightly worse than some. Processing a number of researchers have come up with UHMW injection molding or screw extrusion technology. Use according to the specifications of the restructuring of the device and very simple design of thick-walled parts in the injection molding has been limited success. Lead to polymer degradation or damage to equipment in the screw extruder in the attempt. The most common processing techniques used for UHMWPE plastic pressure. Using a large hydraulic press to produce 50Sq ? ft. Plate sizes and many inches of thickness. The sheet or strip usually slice short strips or blocks of material production. The thick-walled extrusion die feeder for feeding with a specialty residence time by reciprocating pusher rod. Forging technology has been developed, thermoforming and compression in a hot mold under about 390F. UHMWPE can be connected together by hot plate welding or spin welding. Plate heated to 302T impact in the metal impact on the device. The joints formed by the bonding system to withstand the shear value of 6.3MPa. Use of sharp tools and cooling, and easier processing of UHMW. To make parts book cross-section or a more sophisticated mechanical method is commonly used processing methods. Process, such as drilling, grinding, spin, sawing, planing, and thread cutting routine processes. For a long time production operation, it is recommended that the use of carbide tools. The number of process is based on UHMWPE and oil blends. The formation of the gel can be ordinary plastic extrusion machine extrusion processing into sheet or filament. Oil isolated from the plate to become porous materials, applicable to the the electrolyzer isolation plates or filter membranes. UHMWPE fiber applications God pull characteristics superior to steel for some of the nature of a very different purpose from the gel filament orientation and separation of oil to produce. It is used to motorized sled gear drive and impeller drum wind and snow machines, and on these occasions, the use of UHMWPE low-temperature toughness, corrosion resistance and lubricity. In the mining industry, the sliding surface of UHMW used as a chute and hopper, the use of its excellent wear resistance and chemical resistance. A new generation of automatic unloading ore carriers, freight trains and trucks possible applications of UHMWPE, because of its smooth surface, non-stick and wear resistance. These features are also available for agricultural and earthmoving machinery, protective steel with UHMW material. Chemical resistance and surface smoothness can involve many uses. The food processing industry, UHMW-PE with a plate of meat and other surface materials, where non-porous surface. Processed food and medicine conveyor UHMWPE to make contact with the surface and the roller, self-lubricity, resistance to the performance of the boiling water and chemical cleaning agents. To extend the service life and operation smooth, bottling bottling lines often UHMWPE system synchronization screw feeder and the toothed belt. UHM3VPE paper and wastewater treatment industry for bearings, dehydration floor, rails, and filtration devices. Porous UHMWPE is used as the electrolytic cell partitions, to show the material excellent corrosion resistance. High-strength the UHMW fiber is a newly developed material is currently in development. This fiber has been used for competition sailing, the material has anti-mildew and parts made from dimensionally stable and lightweight performance. This fiber is also used as reinforcements for composite structure. |
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Copyright © GuangDong ICP No. 10089450, Shandong Ningjin Emerging Chemical Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
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You are the 12570 visitor
Copyright © GuangDong ICP No. 10089450, Shandong Ningjin Emerging Chemical Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility