In this paper the authors used non-destructive technological monitoring of defects insulation enameled wire with poliimid polymer. The paper is devoted to the statistical method for processing, comparison and analysis of results of measurements of parameters of insulation of enameled wire because of mathematical model of trend for application in active technological monitoring is developed; the recommendations for parameters of such monitoring are used. It is theoretically justified and the possibility of determination of dependence of the error on the velocity of movement of a wire for want of quantifying of defects in enameled insulation by non-destructive tests by high voltage. The dependence of average value of amount of defects for enameled wire with two-sheeted poliimid insulation in a range of nominal diameter 0.56 mm is experimentally determined. The technological monitoring purpose is to reduce the quantifying defects of enameled insulation. References 10, figures 5. Key words: enameled wire, poliimid insulation, defects of insulation, technological monitoring, tests by voltage.Представлены результаты неразрушающего технологического контроля количества дефектов в изоляции эмаль провода на основе полиимидного полимера. Рассмотрено применение статистического анализа результатов измерения показателей контроля с помощью математической модели тренда для использования результатов в активном технологическом контроле. Предложены рекомендации для практического использования параметров функции тренда для контроля гарантированного уровня бездефектности изоляции методами статистики предельных значений. Параметром тренда является скорость уменьшения (или увеличения) длины провода с заданной дефектностью в течение технологического цикла. Теоретически показана и подтверждена измерениями возможность количественной оценки тенденции изменения дефектности эмальизоляции для провода ПЭЭИДХ2 -200 с двухслойной полиимидной изоляцией номинальным диаметром 0,56 мм в течение технологического цикла. Определение количественной оценки тенденции изменения дефектности эмаль изоляции позволяет также выделить и количественно оценить случайную ошибку технологического процесса -суммарную ошибку результатов технологического контроля, которая является количественной характеристикой случайной составляющей стабильности технологического процесса и обусловлена большим количеством причин, каждой из которых можно пренебречь по сравнению с суммой. Библ. 10, рис. 5. Ключевые слова: эмаль провод, полиимидная изоляция, дефектность изоляции, технологический контроль, испытания напряжением.
Forecasting the durability of asphalt-and polymer concretes which is actual in the aspect of the eternal (or high durability) roads concept is executed in recent years on the basis of the testing results under cyclic loading on bending with constant amplitudes of stress or deformation. Such tests are rather complicated, expensive and ambiguous because of the difficulties with providing symmetrical loading with respect to the zero value stress. It is far easier to determine the asphalt concretes lifetime from the begining of loading till the total destruction of the sample by means of double-point loading via series of constant loads (the static fatigue while creeping). As a result a dependences similar to Woehler diagrams are received. Analysis of literature reveals that dependences of a number of cycles and times of destruction via stress for the same objects have close values of exponents (they are almost similar) in case of relatively congruous stressed states and temperatures. In this case the objectively equitable lifetimes of various asphalt-concretes can be achieved under the equal levels of stressed state which are defined by the ratio of the quantity of stress which is imposed on the asphalt concrete sample to the asphaltconcrete strength at the preset speed of deformation. The available lifetimes range from 10 seconds to many days. This allows to detect the lifetimes under near-critical stresses which correspond to the boundary of the transition to the linear viscoelastic behavior of asphalt concretes at a wide range of temperatures as well as under the simultaneous effect of stresses and liquid corrosive media (water, water solution of deicing agents, oil and lubricants etc.).
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