Injection
Structure development in polymers - Applications

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AM3121 V1 Article

Injection
Structure development in polymers - Applications

Author : Jean-Marc HAUDIN

Publication date: April 10, 2015 | Lire en français

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4. Injection

4.1 Process overview

In the injection process, the molten polymer is injected under pressure into a mold, regulated at a temperature well below the polymer's injection temperature (Figure 17) [AM3695]. During this filling phase, the flow of liquid polymer causes the orientation and deformation of macromolecules. On contact with the mold wall, a layer of polymer solidifies very rapidly, and there is a significant thermal gradient...

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