Injection Molding
The injection molding process can be broadly divided into six stages: mold closing, injection molding, pressure holding, cooling, mold opening, and product removal.
This process is repeated to produce products in batches and on a regular basis. The molding of thermoset plastics and rubber involves the same process, but the barrel temperature is lower than for thermoplastics, while the injection pressure is higher. The mold is heated, and after injection, the material undergoes a curing or vulcanization process in the mold before being removed from the mold while still hot.
Current processing technologies are moving toward high-tech, including micro-injection molding, highly filled composite injection molding, water-assisted injection molding, a combination of specialized injection molding processes, foam injection molding, mold technology, and simulation technology.
