Mr Hartmut Nafz
+49 (0) 74 74 / 6 96 - 64
Thermoplastic injection moulding is the most commonly used process in plastic moulding. It forms the basis for all further injection moulding processes.
Plastic granules are drawn from a hopper into the helical mounts, then cut and sheared. The resulting frictional heat in combination with the warmth from the heated cylinder causes the plastic to melt homogeneously. These molten plastics then collect in front of the tip of the receding mount.
In the subsequent injection phase, the mount is hydraulically pressurized at the rear. The melted plastic is pushed out under very high pressure of about 500 to 2000 bar and flows through the non-return valve into the moulding cavity of the injection moulding tool.
The thermoplastic mould in the tool cools down. Then the tool opens automatically and the finished part is ejected.
- Millions of pieces
- high surface quality and very good size accuracy
- many different material combinations possible
- wide range of materials allows for many different material properties
- Can be thermoformed again after solidification