Technology

The injection molding cycle of thermoplastic materials begins with the melting of the granule of the thermoplastic material.

If brought to its melting temperature, thermoplastic materials (Polypropylene, Polyethylene, Polycarbonates, Methacrylate, Polyamides - known as nylon, ABS, Polyester, etc.) have the characteristic of becoming similar to a very viscous, visco-elastic liquid, without lose their characteristics.

The melted thermoplastic material is then "injected" into the mold cavities, inside which it cools down taking the shape of the impression / cavity inside the mold, requested by the customer.

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  • product technology injection moulding
  • product technology injection moulding

Technology - How It Works

1
Plasticization

The thermoplastic material is placed inside the "hopper" where, by gravity, it descends inside the "plasticizing cylinder". The "plasticizing screw" enters in rotation in order to transport the granules on its own large thread, up to the front of the plasticizing cylinder, in front of the screw itself. During this phase, called "plasticization", the granular material is completely melted by the heating action of the "electric heating resistors" placed outside the cylinder.

2
Casting

The injection molding cycle of thermoplastic materials starts with the melting of the granule of the thermoplastic material, which occurs at temperatures of the order of 200-250 ° C thanks to which the granule is liquefied.

3
Injection

Each type of thermoplastic material (Polypropylene, Polyethylene, Polycarbonate, Methacrylate, Polyamide 6 - known as nylon, ABS, Polyester, etc.) has the characteristic of becoming a visco-elastic liquid if brought to its melting temperature, without losing its own features. The "mixture" of molten thermoplastic material is then "injected" into the cavities of the mold where it is cooled in the shape required by the customer.

4
Control and packaging

The printed material is inspected in compliance with the control cycle and packed to be transferred to the warehouse.