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1. General principles of gas-assisted injection processes
Broadly speaking, there are three main processes:
partial filling ;
Filling using a feeder;
filling, with the material being forced into the sleeve.
But there are also derivative applications
filling with mobile core;
gas injection for compacting aspect parts ;
external gas injection ;
injection of hyper-cooled gas;
simplified tooling.
But the gas-assisted injection process can also be combined with a number of other processes.
compression injection with gas injection ;...
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General principles of gas-assisted injection processes
Bibliography
Patents
It wasn't until 2010 that the legal situation reached an epilogue: the legal wrangling that had disrupted the development of the gas-assisted injection process came to an end the day the feeder patent fell into the public domain. But the damage had been done, and many processors had become discouraged by the difficulties.
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The Ultimate Scientific and Technical Reference