To derive a representative assessment of the achieved level of control
in the production of heavy plates the increasing relevancy and the va
rious aspects of homogeneity and reproducibility criteria, the role of
process control and the investigation methods have to be considered.
The aspects of fitness for use and of fabrication are driving forces f
or a narrow control of plate properties, which includes the homogeneit
y within all parts of a delivered plate and also the repeatability of
properties from plate to plate produced for the same specification or
order. With view to the specified range of composition, process parame
ters and mechanical properties adapted target ranges are defined, The
steps of production are controlled and monitored by process computers.
So the desired level of the capability of the process can be assured.
This is a prerequisite for process control.