Power Requirements
The power required for this process of injection molding depends on many things and varies between materials used. Manufacturing Processes Reference Guide states that the power requirements depend on "a material's specific gravity, melting point, thermal conductivity, part size, and molding rate." Below is a table from page 243 of the same reference as previously mentioned that best illustrates the characteristics relevant to the power required for the most commonly used materials.
| Material | Specific gravity (g/cm3) | Melting point (°F) | Melting point (°C) |
|---|---|---|---|
| Epoxy | 1.12 to 1.24 | 248 | 120 |
| Phenolic | 1.34 to 1.95 | 248 | 120 |
| Nylon | 1.01 to 1.15 | 381 to 509 | 194 to 265 |
| Polyethylene | 0.91 to 0.965 | 230 to 243 | 110 to 117 |
| Polystyrene | 1.04 to 1.07 | 338 | 170 |
Read more about this topic: Injection Molding
Famous quotes containing the word power:
“They [women] can use their abilities to support each other, even as they develop more effective and appropriate ways of dealing with power.... Women do not need to diminish other women ... [they] need the power to advance their own development, but they do not “need” the power to limit the development of others.”
—Jean Baker Miller (20th century)