Эрозионный износ - ER

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Гидроабразивная эрозия приводит к уменьшению толщины или полному износу тела шарошек. В долотах с твердосплавным вооружением это ведет к выпадению зубков.

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контакт абразивных пород с телом шарошки, вызванный рейкообразованием на забое скважины, эксцентричным вращением долота или избыточной нагрузкой на долото;

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износ тела шарошек абразивными частицами породы вследствие недостаточной промывки забоя;

избыточная скорость потока промывочной жидкости;

плохая очистка бурового раствора.

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Эрозионный износ - ER

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