Abstract
stage of the injection molding process. This paper shows the influence of cavity surface roughness and technological parameters on the flow length of polymers into mold cavity. Application of the measurement results may have significant influence on the production of shaping parts of the injection molds especially in changing the so far used processes and substituting them by less costly production processes which might increase the competitiveness of the tool producers and shorten the time between product plan and its implementation. This research focused into the influence of technological parameters on filling of the injection mold cavity and the flow length respectively.
Highlights
Injection molding is one of the most extended polymer processing technologies
The aim of the measurements was to find out the influence of separate parameters, especially the quality of the injection mold cavity surface, filler type and filler amount, on the flow length
Influence of the flow length on surface quality is shown on the figures
Summary
Injection molding is one of the most extended polymer processing technologies. It enables the manufacture of final products, which do not require any further operations. The tools used for their production – the injection molds – are very complicated assemblies that are made using several technologies and materials. Working of shaping cavities is the major problem involving the cavity of the mold itself, giving the shape and dimensions of the future product, and the flow pathway (runners) leading the polymer melt to the separate cavities.
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