Components of Injection Mold Tooling

Mold Base: The foundation of the mold, typically made from steel or aluminum, provides stability and houses other components.

  1. Cavity and Core: The cavity is the hollow space that defines the outer shape of the part, while the core forms the inner shape. These are precisely machined to ensure accuracy.

  2. Ejector System: This system helps push the finished part out of the mold once it has cooled and solidified. It often includes ejector pins, plates, and springs.

  3. Cooling Channels: Integrated into the mold, these channels allow for efficient cooling of the molten material, reducing cycle times and improving part quality.

  4. Runner System: This network of channels directs the flow of molten plastic from the injection nozzle to the mold cavities.

  5. Gate: The point at which the molten material enters the mold. The design of the gate can significantly impact flow characteristics and part quality.

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Basics of Injection Molding

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Decorative and Specialized Finishes for Steel Parts