Does cooling time affect my product?
The cooling time of the mold is a crucial parameter in the plastic injection molding process. Cooling too quickly or too slowly can significantly affect the quality of the finished product.
Effects of cooling time on the product:
- Dimensions and tolerances: Rapid cooling can cause uneven shrinkage, compromising the dimensions and tolerances of the piece. Conversely, slow cooling can lead to deformations and internal stresses.
- Mechanical properties: The cooling rate changes the crystalline structure of the polymer. This affects the strength, rigidity, and toughness of the piece.
- Surface appearance: Suboptimal cooling can cause flow lines, blemishes, or deformations on the product's surface.
Process chillers: a precise solution
Process chillers made for the plastics industry provide accurate control of cooling water temperature. This helps ensure the best cycle time. With these systems, it is possible to:
- Optimise cooling time by adjusting the water temperature according to the material and mold characteristics to minimise cycle time without compromising product quality.
- Ensure uniform cooling: Homogeneous temperature distribution within the mold prevents the formation of zones with excessive or insufficient cooling.
- Increase productivity: Reducing cycle times increases production and lowers costs.
- Improve quality: Accurate cooling contributes to products with superior mechanical and surface characteristics.
In conclusion, process chillers are a good way to improve the injection molding process. They help produce high-quality parts.