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Improving properties and resistance

Source: Release Date:2009-07-30 124
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巴斯夫最新推出的工程塑料Ultramid?#23545;聚酰胺特性有重大改善,并为汽车、电子电气和食品等制造领域挺高成本效率与提升安全性。
BASF's introduction of its Ultramid?line signifies the emergence of a new breed of engineering plastics possessing improved properties. The Ultramid瓾igh Speed products include the three highly filled Polyamide 66 grades: Ultramid瓵3WG10 High Speed, Ultramid瓵3WG7 High Speed and the optimum-warpage Ultramid瓵3WGM53 High Speed. The first two products are filled with 50% and 35% glass fibers, respectively, while the third one is filled with glass fibers and minerals. The incorporation of special nanoparticles into the plastic accounts for a marked improvement of these products not only in terms of the flow properties but also of the heat-ageing resistance at high temperatures. These polyamides possess extraordinary combination of properties. Depending on the glass fiber content, Ultramid High Speed flows at least twice as far as comparable standard grades. This results in a reduction of cycle time, reduction in the size of the injection molding machine as well as longer lifetime of tools, thereby providing several costs benefits. In keeping with market needs to provide high value products that reduce part cost, Ultramid?A3W2G10 can endure a continuous temperature of 210℃, surpassing PA 66 typical long-term useful range of 140℃ - 150℃. This grade can replace more expensive resins like polyphthalamide and polyamide 46, lowering the overall part cost. Even with 50% glass reinforcement, this material has excellent processing flow properties, and provides a superior surface appearance. Ultramid瓵3W2G10 also provides "metal-to-plastic" opportunities, enabling OEM's to reduce vehicle weight, improve gas mileage and reduce emissions. Enhanced automotive parts Even before the launch of a new generation of Ultramid瓾igh Speed products, this line has been used in highly complicated applications, such as in automotive parts. The Bosch alternator cover made of Ultramid瓵3UG5 LS is a plastics material being used for the first time in automotive parts due to its flame retardant properties. The product - dyed black - is rendered flame retardant without halogen or red phosphorus and it is rated V0 according to the UL 94 fire safety standard. This is the only way to properly protect the alternator while meeting the high requirements made by Bosch standard N 2580-1 governing the contents of components.

"The introduction of the Ultramid ?line signifies the emergence of a new range of engineering plastics possessing improved properties"

Moreover, these plastics can also be laser-written, a property that is becoming increasingly important: The logistics of large companies as well as the administration of detailed parts information often call for barcodes and data-matrix codes that can be flexibly and cost effectively applied by means of laser technology. Another example where plastics replaced the use of magnesium construction is in the Audi Q7 fitted with an airbag housing made of Ultramid?offering sufficiently elastic properties under cold conditions but also rigid enough at high temperatures, easier to process than magnesium and exhibits good flame retardant behavior. Dual-clutch transmissions are among the most innovative automatic transmissions and another area where Ultramid?has been applied. Continental's dual-clutch transmissions have been systematically improved over the last few years since they were first used at Volkswagen. The plastic parts of the integrated control units for these dual-clutch transmissions used at VW, Audi, Ford and BMW are made of Ultramid?A3WG6. The transmission control unit is a sophisticated, compact mechatronic component that is installed directly on the transmission and is thus also surrounded by hot transmission oil. Consequently, the main requirement made of this plastic part - into which numerous sensors, molded interconnect devices and other metallic structures have to be securely integrated -Junior
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