Articles
Polymotive 3 2011
Moulding and welding within the mould
In collaboration with Hummel-Formen and KVT Bielefeld, Engel sets the path for a new kind of process integration. The joinmelt process supports hot gas welding directly in the mold. Besides cost savings, the new process is also said to improve parts quality and functional safety.
Kunststoffe International 10 2010
Virtual Process Design in Expansion Injection Molding
Expansion injection molding facilitates the production of very thin-walled parts by the explosive relaxation of compressed melt. A research group has now developed a software that simulates the process based on a physical model. The program’s practical capability is demonstrated by a comparison between the virtual and actual process in the production of check cards.
Kunststoffe 09/2009
Cleanliness Counts
Particle load and heat emissions are the creteria that are always quoted when decisions about machine operating principle are to be made. A comparison of hydraulic, electrical and hybrid injection moulding machines gives an indication of which principle has the lowest emissions and is therefore best suited for cleanroom production.
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Kunststoffe 07/2009
Resistant Screws
Modern injection moulders add increasing amounts of mineral additives and glass fibres to their plastics moulding compounds to modify the material properties. These mixtures make severe demands on the resistance of the plastifying components. A new screw system significantly improves the wear protection.
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Kunststoffe 07/2009
A Breath of Fresh Air in the Crisis
It was almost possible to gain the impression that all was normal: the 2,000 visitors attending the ENGEL Symposium 09 experienced a high-class event with intense discussions about the future of injection moulding technology.
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Kunststoffe 06/2009
Tapping Hidden Reserves
The large number of cooling circuits, hydraulic connections makes conventional setting up of large molds a complex and time consuming undertaking, with many sources of error. New set-up package make it easy to automate mold exchange.
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Kunststoffe 04/2009
Focus on Precision
With above-average growth rates, optical technologies can be considered as setting the pace for the 21st century. However, the challenges when injection moulding optical parts frequently differ from those encountered when injection moulding conventional parts. In the face of international competition, the focus is shifting increasingly to innovative processing techniques.
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MedPlast 01/2008
Risk elimination
Medical technology is the most sensitive area in plastics processing, posing great challenges to processors and machine suppliers. ENGEL has been concerning itself for several years with the development of injection moulding machines to be used in medical technology. This has resulted in an economic clean room-capable machine design and a variety of accomplishments and experiences in this area.
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Kunststoffe 01/2008
When Two Come Together
To produce large injection moulded parts from special material formulations, ENGEL is offering the modular combination of a standard injection moulding machine with an extrusion compounding line.
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Kunststoffe 11/2007
Water Injection via an Additional Injection Unit
Water injection technology in injection moulding allows the manufacture of moulded parts with hollow cross-sections and is used in particular when such parts can not be produced by blow moulding or conventional injection moulding techniques.
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Kunststoffe 09/2007
The right machine for GMP
Medical technology is one of the most sensitive applications in machinery and plant construction since medical products do not allow any compromises in production safety, traceabilityof the qualification processes or product liability. This means details really count when developing an injection moulding machine for cleanroom manufacturing.
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