2. The materials
The materials used in injection moulding processes come in a variety of forms:
powdered state, for thermosetting resins such as phenoplasts (bakelite, formophenolic resin), for certain thermoplastics (polyvinyl chloride, for example) and for silicones;
granules, for thermoplastics ;
pasty state, for fiber-reinforced unsaturated polyester resins used in the BMC (Bulk Molding Compound) process.
2.1 Packaging and storage
Powdered and granulated materials are delivered :
either in bulk in tankers and transferred to silos located near the processing plants;
...
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The materials
Injection molding machine
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