УДК 621. 22. 011
Finkelstein Z., Yamkova M. Donbass state technical university, Alchevsk, Ukraine (
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Финкельштейн З.Л. д.т.н., проф., Ямковая М.А. к.т.н., доц. ДонГТУ, г. Алчевск, Украина
ГИДРОДИНАМИЧЕСКИЙ РАСЧЕТ СИЛОВОЙ ЦЕПИ КОМПЛЕКСА ДЛЯ ЭЛЕКТРОХИМИЧЕСКОЙ ОБРАБОТКИ
Abstract. Purpose. Hydrodynamic calculation of flow of the electrolyte in the interelectrode gap of electrotechnical complex for the dimensional electrochemical machining Design/methodology/approach. The most significant scientific and applied results, conclusions and recommendations are as follows: for the first time invited to the dependence of the total resistance of the interelectrode gap from electrical, hydraulic and geometric parameters. Set the Ushaped dependence of the resistance of the working current, which leads to its instability, that is, for the first time theoretically explained by the frequent appearance of the regime of a short circuit when electrochemical processing; for the first time considered the inductance of the interelectrode gap, which helped to create a more accurate mathematical model of the complex. Рroposed the mathematical model of the power circuit of electrotechnical complex for electrochemical treatment of metals and alloys, which allows you to: correct in theory to calculate the values of the operating current; theoretically explain the property of selfregulation interelectrode gap (the presence of the derivative in the law regulation). Findings. The essence of the carried out researches is in the theoretical explanation of the properties of selfregulation interelectrode gap and the possibility of a regime of a short circuit, as well as in the theoretical calculation of the operating current of the complex depending on its electrical, geometric and hydraulic parameters. Originality/value. Рroposed the mathematical model of the power circuit of electrotechnical complex for electrochemical treatment of metals and alloys, which allows you to: correct in theory to calculate the values of the operating current; heoretically explain the property of selfregulation interelectrode gap (the presence of the derivative in the law regulation).
Keywords: hydrodynamic calculation, electrochemical machining, spark plug gap, nonlinear resistance, acid.
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