Application of microprocessors to foundry processes

✍ Scribed by J. Dunlop

• Publisher: Elsevier Science
• Year: 1985
• Weight: 814 KB
• Volume: 8
• Category: Article
• ISSN: 0745-7138
• DOI: 10.1016/0745-7138(85)90021-1

✦ Synopsis

This paper describes the principles of operation of a microprocessor based instrument designed for use in the foundry industry. The instrument automatically determines the carbon and silicon content of molten cast irons by monitoring the cooling profile of a sample in a mould which contains a quantity of tellurium. The liquidus arrest temperature (TL) and solidus arrest temperature (TW) of the cooling profile of such a sample of unalloyed cast iron are related to the carbon and silicon content of the metal. Manipulation of these data produce an estimate of the carbon content of the molten metal to within 0.1% and, under certain circumstances, an estimate of the silicon content to within 0.14%. The automation of this process has resulted in high reliability of results, reduction in calculation time and elimination of subjective error present in manual analysis methods.