Gas & Water Assist
New Machines & Processes Unveiled By Wittmann Battenfeld
At an open house in Kottingbrunn, Austria, last month, Wittmann Battenfeld GmbH showed what it has been doing to make good on its pledge to reinvigorate the venerable Battenfeld name and its reputation for innovation.
Read MoreANTEC at NPE: Editors' Picks
One of the unusual features of NPE 2009 in Chicago June 22-24 will be the first-ever concurrent presentation of the SPE ANTEC conference, by far the largest of seven conferences at McCormick Place during the show.
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Sequential Hard/Soft Injection Molding with Water Assist
In 2004, the value of pairing two-material injection with water assist was demonstrated in production of two-layer automotive pipes and ducts (see Learn More). Further potential for this combination of advanced techniques in sequential injection of hollow automotive parts with rigid and flexible sections is being developed at the German Institute of Plastics Processing (known as the IKV). Water injection technology (WIT) was first developed at the IKV in the 1990s.
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What's New at the Show in INJECTION MOLDING
At the big “K” Show next month, top billing goes to new all-electric machines aimed at every segment of the market, from general-purpose to high-end.
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New Injection Machines and Processes To Debut at K 2007
A brand-new line of all-electric machines priced on par with comparable hydraulic presses and the first public demonstration of insert molding RFID chips into plastic parts will be two highlights of the Engel display at the mammoth K 2007 show in Dusseldorf, Germany, this October.
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Dual Gas-Assist Techniques Advance Large-Part Molding
A novel combination of internal and external gas assist is the secret to injection molding a large panel that is both structural and requires a highly cosmetic surface.
Read MoreNPE 2006 News Flash
Injection MoldingSimplified Hot Runners Save Time & CostA new lower-cost hot-runner alternative to valve gating is suited to less critical cosmetic applications where users need predictable and reliable gate opening but not sequential gate operation.
Read More50 Ideas That Changed Plastics
Very few readers of this issue can remember, or even imagine, what it was like when an injection molding machine did not have a screw, but only a smooth-bore plunger.
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Water Injection Molding: It's All Coming Together
Commercial applications in hollow-part molding with water—or water and gas—are starting to accelerate. They are driven by recent enhancements of process technology, equipment, and materials.
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