Akhil User: Akhil, CC BY-SA 4.0 | Injection Molding | Description |
|---|---|
| Produces plastic parts | By forcing molten material into a mold where it cools and hardens. The molded shape produced is a reverse image of the mold tool. |
| Low cost molding | Used for simple and complex parts. The pressure of injection is high, dependent on the material being processed. |
| Commonly used for thermoplastics | The powder compound is first heated to drive moisture and then fed into the hopper. When the ram is drawn back, some of the powder drops into the chamber. The mold is closed, and the ram is moved forward, applying pressure behind the powder. This compresses the material and forces it forward through the thin space left around the heated torpedo. The material comes in contact with the heated source and solidifies. The temperature during heating in the chamber ranges between 175°C to 275°C. The heated material is then forced into the mold, which is cooled and opened. The part is knocked out by knockout pins. |
Labels:
Manufacturing processes
