3. Understanding and solving quality problems
Defects in injected parts are commonly listed as follows:
incomplete documents ;
non-conforming part weight: bubble, shrinkage, non-conforming dimensions;
deformation of parts in relation to mould dimensions: dimensional deviation ;
surface defects: shrinkage, burrs, appearance ;
burning of parts: diesel effect.
Paragraph describes the consequences of setting errors, and paragraph those of variations in material viscosity. Paragraph links some of the above defects to their causes and remedies:
presence of bubble: ;
incomplete...
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Understanding and solving quality problems
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Bibliography
Standards and norms
Euromap recommendations www.euromap.org
Description of injection molding machines. EUROMAP 01 (1983)
Injection molding machines. Mould fixing and connection dimensions. EUROMAP 02 (1996).
Injection molding machines. Determination of the actual injection efficiency. EUROMAP 04 (1994).
Injection molding process. Determination of important...
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