Optimal System for Improved Internal Model Control of Argon-Oxygen Decarburization Process Based on the Piecewise Linear Model and Time Constant of Filter Optimization

Table 3

Test data from the 5 ton argon-oxygen refining furnace.

Refining no.	Initial mass (t)	Initial temperature (°C)	Initial carbon content (mass %)	Final temperature (°C)	Endpoint carbon content (mass %)	Unit refining time (min)
1#	4.75	1413	8.31	1706	0.45	15.58
2#	4.55	1403	8.35	1712	0.51	14.07
3#	3.54	1394	7.98	1697	0.49	17.51
4#	4.98	1436	8.14	1709	0.49	12.65
5#	5.04	1428	8.34	1702	0.52	12.90
6#	4.63	1411	8.06	1704	0.51	14.67
7#	4.13	1419	7.86	1704	0.47	13.80
8#	3.89	1388	8.42	1707	0.52	15.94
9#	4.37	1410	8.11	1699	0.49	14.42
10#	4.81	1422	8.33	1705	0.48	13.51