IT

RSSEGNA STAMPA

25 August 2022

First phase of automation system upgrade at SMW ISPAT in India

AIC India was contracted to upgrade the steel manufacturer's existing automation systems based on S7-400 using the most recent software in order to increase availability and yield.

The upgrade will be carried out in two phases: 1st phase involved the control systems replacement for the crop shears and divide shear including aprons and rake; the 2nd phase will upgrade the speed control system of the continuous mill comprising 18 continuous stands by implementing AIC’s algorithms for cascade control, MTC and Looper control.

The achieved results obtained after 1st stage of AIC intervention are:
- 1.5% yield gain;
- Improved productivity due to the elimination of cobbles in the finishing area;
- High cutting accuracy and repeatability as well as cutting optimization strategy: the system automatically calculates an optimal cutting strategy to minimize material scrapping. This system can also take advantage of a pre-optimization shear to scrap the material in the middle of the rolling process.

The 2nd phase is due for commissioning in the month of November and the overall availability of the control system is expected to be improved to 99.5%.

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