Monitoring and documentation of the quality of mouldings were hitherto
virtually impossible to automate, could only be carried out on random
samples and involved expensive test methods. Moreover, the test metho
ds only allowed most features of the moulding, for example its dimensi
ons and mechanical strength, to be determined hours or days later. The
online continous quality control (CQC) method described here, on the
other hand, allows the quality characteristics of the mouldings to be
calculated highly accurately and during the production cycle. Through
an exact knowledge of the process, CQC permits complete automation of
quality control and therefore a drastic reduction in the number of rej
ects.