- Material Selection: The process begins by selecting the appropriate raw material, usually in the form of pellets or granules. Common materials include various types of plastics, such as polyethylene, polystyrene, or polypropylene.
- Melting: The selected material is fed into a heated barrel of an injection molding machine. Inside the barrel, the pellets are gradually heated to their melting point, forming a viscous molten liquid.
- Injection: Once the material is molten and homogenized, it’s injected into a mould cavity under high pressure. The mould is typically made of two halves, and the molten material fills the cavity to take the shape of the desired product.
- Cooling: After the mould cavity is filled, the molten material is allowed to cool and solidify within the mould. Cooling can be accelerated using cooling channels or other methods to maintain efficiency in production.
- Ejection: Once the material has solidified, the mould opens, and the newly formed part is ejected from the mould cavity. This step can involve automatic ejection mechanisms or manual removal, depending on the complexity of the part.
- Finishing: Post-processing steps might be necessary, such as trimming excess material, adding surface finishes, or performing additional treatments to achieve the desired final product.
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