Trouble-Shooting In Plastic Injection Molding Processes And Machinery

As with any manufacturing procedure, the processes of plastic injection molding can at times require a vigilant analysis and trouble-shooting methodology to ensure efficiency of the operation and end product quality. This article will provide an overview of some of the core components of plastic injection molding processes and machinery and an approach for trouble shooting. 

Efficiency throughout every phase of any plastic molding operation is fundamental to Quality Control and Quality Assurance. In order to effectively implement trouble-shooting methods for plastic injection molding machines, it is necessary to understand the full range of the processes, detailed criteria of those processes, the materials, and subsections and specifics of each. Though this is clearly a comprehensive topic, an abbreviated outline is being provided here for space considerations. 

Trouble-shooting plastic injection molding processes ultimately comes down to an analysis of four major components: (1) Material; (2) Mold; (3) Molding Cycle; and (4) Machine Performance. Additionally, in the practical world of injection molding, any existing problems tend to narrow down to the following three classifications: (1) Pre-molding; (2) Molding, and; (3) Post-molding. An outline of plastic injection molding machines, materials, and processes – as it applies to trouble shooting – generally consists of the following:

Molding procedures (i.e., extrusion blow molding, injection blow molding, etc.)

Different machine types and systems

Molding and finishing processes

Clamp systems

Feed systems

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