What kind of preform mold is good?

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

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

3. Mold: 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.

4. Cycle cycle: Fast production cycle means higher requirements for nozzles. For example, nozzles need to transfer heat accurately and be durable.

5. Gate: For a point gate, in order to maintain a good thermal 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.

6. Nozzles: Nozzles can generally be distinguished by size, temperature distribution, physical properties, materials used (copper, steel, etc.), and the difficulty and price of maintenance.

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 with a relatively complex temperature controller

9. The performance of the injection molding machine: it can 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.