3. Examples of parts produced and problems encountered
Since there are no legal constraints on the use of feeders, virtually all parts produced to date use one or more feeders.
3.1 Automotive parts
Without doubt, transformers working for the automotive industry can be considered the forerunners of the water-assisted injection process. The applications are many and varied.
Hydraulic line (figure 4 )
Target: cycle time savings.
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Feeder process :
material: 30% glass-fibre reinforced polypropylene (PP) ;
...
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Examples of parts produced and problems encountered
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Patents
While the situation is complicated with gas-assisted injection molding, it's simple with water-assisted injection molding. In fact, the Institut fûr Kunststoffverarbeitung (IKV) in Aachen, Germany, has been working on this process since 1996, and published its findings in full in the April 1999 issue of Kunststoffe. This publication prevents patent applications from being filed in Europe, enabling the process to be promoted rather...
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