GSM mixing nozzle

APPLICATION

The GSM mixing nozzle is used for processing thermoplasts in injection moulding processes.

The design principle of the GSM mixer is unique. Each ele- ment divides the diameter into two channels, which decrease to half of the diameter before expanding again. The channel inlet and outlet are offset by 90°.

The conductive surfaces have a curved geometric definition. Homogenous mixing is achieved by two effects; exponential layer formation and speed differences of part flows. This enables continual mixing on a minimal mixing line.

INDIVIDUAL PRODUCTION

Polymers are poor conductors of heat. Tests in extruder sys- tems have shown that significant temperature differences can occur at the screw outlet (up to +/- 20°C).

This problem leads to tolerance deviations in the injection moulding process and therefore to an increased reject rate; especially among technical parts.

Any differences in temperature also mean increased cycle times, because during cooling the max. temperature peaks in the moulded parts must be considered. A reduction of the cycle time means additional savings in operating costs.