Knives of granulator for cutting polyethylene. RAPID COMMUNICATION (in English)
A new method of manufacturing polymeric parts called "injection moulding of decorative articles" was presented. In this method it is possible in a single operation of injection moulding to join the decorative material forming the surface layer of the article with its polymeric core. A characteristic feature of the method is the elimination (or a very considerable reduction) of the compression and clamp phase during injection. An accurate control of the injection moulding parameters (injection temperature, pressure, and time) as well as an appropriate design of the injection mould is required. In the present state of knowledge, an application of this method is to be preceded by experimental investigations.
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