Ten Key Factors of Selction of the Hot Runner Nozzle for Preform Mold

November 24, 2022

Ten key factors of selection of the hot runner nozzle for Preform Mold

In the production process, we often worry about what kind of hot runner nozzle to choose for the preform mold, and the factors that affect the selection of the hot runner nozzle for the preform mold are: plastic raw materials, product quality, nozzles, molds, cycle times, gates, runners, temperature controllers, performance of injection molding machines and product design.

1. Plastic raw materials: Different plastic raw materials have different processing variables, and those processing variables will affect the choice of hot runner system.

2. Product weight: Products with different weights have completely different requirements for hot runners.

3. Nozzles: Nozzles can generally be differentiated by size, temperature distribution, physical properties, material used (copper, steel, etc.), and ease and price of maintenance.

4. Mold: For example, what is the number of cavities? What is the nozzle distribution distance? What kind of material is processed? And so on, these are the mold elements related to the optional hot runner system.

5. Cycle time: Fast production cycles mean increased requirements on nozzles. For example, nozzles need to transfer heat accurately and be durable.

6. Gate: For the point gate, in order to maintain a good heat balance in each molding cycle, the tip of the hot flow nozzle must have the function of melting the material and cooling the seal. The valve gate uses a mechanical method to seal the gate.

7. Runner: The use of the hot runner system avoids the production of material handles, which not only saves raw materials, but also saves the previous process of removing material handles by hand, manipulator or other methods.

8. Temperature control: Each nozzle must be connected to a relatively complex temperature controller.

9. The performance of the Injection Molding Machine: the ability to install a mold of a given size, provide sufficient clamping force, operate according to the requirements of the cycle time, plasticize enough materials, etc.

10. Product design: Generally speaking, we all know that the product design is completed first, but the final molding is completed in the hot runner mold. In order to ensure a smooth product appearance and easy mold release at the end of molding, those factors must be considered in the structural design of the product.

When the enterprise has an accurate understanding and grasp of the above, it can choose the appropriate hot runner nozzle for the preform mold.

The above is the Ten Key Factors of Selction of the Hot Runner Nozzle for Preform Mold we have listed for you. You can submit the following form to obtain more industry information we provide for you.

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