Abstract
The development of methods for evaluating the cooling capacity of quenching media can be divided into two main eras. In the first era (before the appearance of computers) the estimation of the cooling capacity of quenching media was qualitative. The second era is characterized by the appearance of new technologies, for example, automatically controlled heat treatment that require a quantitative description of the physical processes occurring in hardening and creation or refinement of mathematical models with correctly specified boundary conditions. Special software and algorithms for implementation of the technological processes are created on the basis of such models. Automatically controlled systems of thermal strengthening of steel parts are unthinkable without a mathematical description of the hardening process and a correct choice of the boundary conditions based on a comprehensive investigation of the cooling capacity of quenching media. Such an investigation will make it possible to replace expensive and inflammable quenching oils by aqueous solutions or water. With the development of intense quenching methods it became necessary to evaluate the cooling capacity of liquids fed in jets or directed flows.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 2, pp. 2 – 8, February, 1996.
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Kobasko, N.I. Current state of the problem and principal criteria for evaluating the cooling capacity of quenching media. Met Sci Heat Treat 38, 49–55 (1996). https://doi.org/10.1007/BF01362156
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DOI: https://doi.org/10.1007/BF01362156