How does a plastic injection mold work?
1. Injection steps: The raw material is melted by the high-speed rotation of the screw. The rotation speed is critical to the melting. If it is too slow, the plastic will not melt enough and if it is too fast, the plastic will be carbonized. Of course, the barrel is also important for heating. After the raw material is melted, the melted material is injected into the mold. It also requires an injection molding machine to provide injection pressure to inject molten raw materials into the mold. Then it takes some time to hold the pressure. After that, cool the mold and close the gate of the mold. Finally, the mold is cooled by air and water. Picking up the product: This is the last step. Some customers need a robot to pick up the product, and some let the product fall off automatically after molding. Mainstream Road It is a passage in the mold that connects the injection nozzle of the injection machine to the runner or cavity. The top of the main flow channel is concave