2025-01-02
Injection molding is a very efficient and widely used plastics manufacturing process for the high volume production of parts. Mold development is a key aspect of the process and is critical to accurately molding and shaping molten plastics with high accuracy. The creation of the mold, as the first step, requires extreme precision and accuracy to ensure quality and consistency in the final product.An example of an injection molding mold for plastic flower pots has been given.
What is injection molding?
Injection molding is a manufacturing process in which molten material is injected into a prepared mold and allowed to cool. Once cooled, the material solidifies and takes the shape of the mold and is then ejected. While the process can be used for one-off production, it is often used for mass production of identical parts. The most common materials used in injection molding are plastics or elastomers.
Advantages of injection molding
1.High throughput
This is one of the most important advantages of the process. The process takes 20-120 seconds to complete a cycle, making it possible to manufacture hundreds of parts per hour.
2.Lowest Labor Costs
The injection molding process is fully automated and requires only one operator to operate. As a result, production costs are reduced due to the reduced number of heads.
3.Design Flexibility
Injection molding allows manufacturers to create a wide variety of designs, regardless of complexity.
4.Low Waste
Unlike other production processes such as CNC machining, injection molding produces very little waste. The small amount of unused material can be collected and recycled.
5.Multiple Material Compatibility
With this process, you can use multiple materials and colors at the same time. Since the pop-up part has a finished look, little work is required afterward.
Runner Type
Runner type affects mold design flexibility, material waste, and the amount of post-processing required.
Cold Runner Molds: Use unheated channels to direct molten plastic into the mold cavity. They are less expensive, but require more post-processing to remove the runners from the final product.
Hot Runner Molds: Use heated channels to keep the plastic molten until it reaches the cavity. They reduce waste and post-processing requirements, but are more complex and expensive.
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