defect in plastic injection moulding process defect in plastic injection moulding process in plastic injection molding the molded part produced are higher potential to have a plastics defects these defects ...
Filetype PDF | Posted on 27 Feb 2023 | 2 years ago
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...Defect in plastic injection moulding process molding the molded part produced are higher potential to have a plastics defects these may be due design materials resin molds fabrication material machine parameters and others black spot dot generally caused by foreign look like as contamination or presence of dead space nozzle sometime it also grease at side pull lifter mechanism countermeasure clean screw barrel purging check bubles known voids generated inside usually insufficient mold filling air trap example critical products lens light pipe vent sub insert ejector pin...