Process Control and Materials Characterization within the Steel Industry
Within the steel industry, chemical, thermal and mechanical processing of materials are the means by which the final properties are developed within the material. Historically, these procedures often evolved as an art perfected by practice over an extended period of time. The processes can be complex, interactive, and extremely rapid and though the processing steps may not always be completely understood, the outcome is generally known and controllable within limits. The control problem is complicated by the unhappy circumstance that important processing parameters may not be measured and in some cases are unobservable.
The approach to many of these control problems may lie in the development of sensor systems which are able to comment more directly on the controlled parameters. Some can be approached by using multiple sensory information, mathematical algorithms, and inference. Other problems can benefit from the use of a reference process model, particularly if imbedded within the control system. Some control problems are best solved by modifying the process to something which is inherently more controllable.
KeywordsPorosity Furnace Attenuation Mold Boron
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