· Fundición ·
C. Debray*, M. Dussud*, M. Biardeau*, and P. Canon**
* SERT, France, ** ACI Le Mans, France
67th World Foundry Congress
Foundries expect such performance from automatic pouring that their
requisites are going beyond the reach of a classic approach to automatic
control. A particular shortcoming that has been evidenced is that an
automatic system based on a single level sensor is not apt to cope with
the phenomena related to mould filling speed, such as refeeding. Multiloop
strategy answers those needs: it implies a second camera, called
post-pouring sensor, installed a little downwards after the pouring point.
The results obtained with that solution at ThyssenKrupp Waupaca (USA)
and ACI Le Mans (France) have shown a drastic reduction in
pouring-related downgrading, reduced human involvement and optimised
yield.
