1. Different types of molds
1.1 Principle
Polymer injection molding relies on temperature-dependent changes in polymer properties: in the press barrel, molten polymers are viscoelastic, compressible fluids, and are transferred in this state to the mold cavities.
The mould is maintained at a temperature below the glass transition temperature. for amorphous polymers and below the crystallization temperature for crystalline polymers. In the mold, the temperature of the polymer falls below...
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Different types of molds
Problems encountered
Bibliography
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