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Troubleshooting Guide for Injection Molding II Moisture Streaks Physical cause During storage or processing, moisture is absorbed by the granules, forming water vapour in the melt. Due to the velocity profile at the flow front, gas blisters are pushed to the surface of the melt as shown in Figure. Since they want to compensate the

Troubleshooting Guide for Injection Molding I In most cases, the surface quality of thermoplastic injection moulded parts is the main criterion for their quality. Due to the complex interrelationship between the moulded part and the mould, the moulding compound and the processing, it is often very hard to recognise the origin of problems and thus

Before we cut a single line of steel for a new injection mold, our engineering team always conducts a thorough review of the plastic part design. In our 30-plus years of manufacturing experience, we’ve seen how seemingly small design decisions — a wall that’s slightly too thick here, a corner left sharp there — can

Injection molding is a process by which plastic pellets are melted using heat and shear in an extruder and injected, at high pressure and flow, into an injection mold to form the part. It is one of the most productive and cost-effective means of producing a high-quality product. While this process seems straightforward, it is

The designer should always decide whether using injection molding is the best approach to mold the item before moving further with it. Have other approaches or product designs that employ different production techniques and utilize the same, comparable, or different materials—or materials that would allow for a similar final result, or even one of higher