Why do plastic products often have dimensional inaccuracies during injection molding?

There are several factors that can contribute to dimensional inaccuracies in plastic products during injection molding:

1.Mold design: Improper mold design can lead to uneven cooling and inadequate venting, resulting in dimensional variations.

2.Material shrinkage: Plastic materials undergo shrinkage as they cool down after injection. If the shrinkage rate is not properly accounted for in the mold design and process parameters, it can cause dimensional inaccuracies.

3.Process parameters: Injection molding involves various process parameters such as melt temperature, injection speed, and packing pressure. Inaccurate control or improper settings of these parameters can affect the final dimensions of the product.

4.Mold temperature: Improper mold temperature control can lead to uneven cooling and dimensional variations in the plastic part.

Injection molding mold temperature controller can precisely control the mold temperature, evenly cool the plastic products, prevent demolding breakage, and improve production efficiency and product quality.

5.Warping and stress: Internal stresses can develop within the plastic part during cooling, leading to warping and dimensional inaccuracies.

To address these issues, it is important to ensure proper mold design, accurate material selection, precise process control, and adequate mold temperature management. Regular monitoring and adjustment of process parameters can help minimize dimensional inaccuracies and ensure consistent product quality during injection molding.

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