19 December 2003
19 December 2003
Plastic intake manifolds molded from Dow Automotive’s Questra crystalline polymer have been specified for use on the 1.5L and 1.6L SOHC and 1.6L DOHC Lada vehicles, manufactured in Russia by Avtovaz.
These are the first plastic intake manifolds in the Russian market and are the result of a cooperative effort between Avtovaz, its plastics’ molding supplier OAO Plastik in Syzran, Russia and Dow Automotive.
“Plastic intake manifolds are used on nearly 70 percent of all vehicles manufactured in Europe,” says Vyacheslav Meshkov, Deputy Division Manager for Gasoline Engines, Avtovaz. “We previously specified aluminum intake manifolds, but switched to thermoplastics in these applications primarily for cost and weight saving benefits along with other manufacturing efficiencies. Dow Automotive has supplied us in the past for other plastic applications on our vehicles and we knew they could help us find a solution for this under-the-hood application.”
The linear vibration welded plastic intake manifolds are molded from Questra N, a 35% glass fiber reinforced grade of Questra crystalline polymer that is a blend of syndiotactic polystyrene and polyamide. This material is typically suited for replacing metal in under-the-hood applications as it offers strength, stiffness, creep resistance and chemical resistance under high temperature operating environments.
“The material from Dow Automotive is a good solution not only for its strength and heat resistant properties, but also for its ease in processing and dimensional characteristics that are essential to the molding operation,” says Anatoli Knyazev, Chief Engineer, OAO Plastik. “Assistance from Dow Automotive in product development and validation also helped us create a solution that brought value to our customer.”
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