Conclusions
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1.
The process of heating ammonia in the furnace for nitriding is practically inertialess.
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2.
Analytical expressions for the dynamic characteristic of the dissociation of ammonia during nitriding were obtained in relation to its input in the form of a nonlinear differential equation of the first kind.
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Literature cited
L.V. Beloruchev and V. V. Dembovskii, "Automatic control of the degree of dissociation of ammonia in furnaces for nitriding steels," Metalloved. Term. Obrad. Med., No. 8, 52 (1966).
V. V. Dembovskii, "Automating the controls and controlling the degree of dissociation of ammonia in furnaces for nitriding metals," Zashchitnye Pokrytiya Na Metallakh, No. 2, 86 (1968).
O. N. Tikhonov, Solving the Problem of Automation and Enrichment in Metallurgy [in Russian], Nedra, Moscow (1969), p. 17.
V. V. Kafarov, Methods of Cybernetics in Chemistry and Chemical Engineering [in Russian], Khimiya, Moscow (1968), p. 160.
N. M. Émanuél' and D. G. Knorre, Course of Chemical Kinetics [in Russian], Vysshaya Shkola, Moscow (1969), p. 377.
MacAdams, Heat Transfer [Russian translation], Metallurgizdat, Moscow (1961), p. 137.
Additional information
Northwestern Correspondance Polytechnical Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7, pp. 49–51, July, 1978.
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Dembovskii, V.V., Kudryavtsev, V.N. Dynamics of the process of change in the degree of dissociation of ammonia in nitriding furnaces. Met Sci Heat Treat 20, 569–572 (1978). https://doi.org/10.1007/BF00780339
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DOI: https://doi.org/10.1007/BF00780339