Microprocessor studies in process metallurgy

CIM Bulletin, Vol. 73, No. 820, 1980

S.A. ARGYROPOULOS and R.I.L GUTHRIE, Department of Mining and Metallurgical Enginneering, K. ANANTHANARAYANAN, School of Computer Science, McGill University, Montreal, Quebec

The low cost and availability of micro-computers and their peripherals provides the metallurgical engineer with the opportunity to use such computers in a wide variety of applications. In this paper, the authors describe the development of a low-cost data acquisition system capable of measuring up to 8 analogue channels at a sampling rate of up to 5000 measurements per second. This system is equipped with proper hardware and software so that the micro-computer can be linked to a central computer facility such as the McGill System for Interactive Computing (MUSIC). This central computer facility is supported by an AMDAHL V7 computer. Using the present interface, communication rates between the microcomputer and the central computing facility can be as high as 9600 (baud).The above mentioned data acquisition system is currently used for monitoring dissolution kinetics of ferro-alloy additions in liquid steel. In addition to this, special software has been developed which enables the user of this system to monitor solidification rates of ingots, etc.As economic considerations are always important, comparisons have been made with existing recorders which show that the cost of the present system is only 30 per cent more than a two-pen strip chart recorder.
Keywords: Computers, Microprocessors, Process metallurgy, Dissolution kinetics, Steel baths, Castings.