Випуск 88 Том 1 / Выпуск 88 Том 1

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Improving wear resistance of responsible hydraulic hammer details with ion-plasma treatment
(Харківський національний автомобільно-дорожній університет, 2020) Glushkova, D. B.; Ryzhkov, Yu. V.; Kostina, L. L.; Chigrin, A. A.; Stepanyuk, A. I.; Глушкова, Д. Б.; Рижков, Ю. В.; Костіна, Л. Л.; Чигрин, А. О.; Степанюк, А. І.; Глушкова, Д. Б.; Рыжков, Ю. В.; Костина, Л. Л.; Чигрин, А. А.; Степанюк, А. И.
Details of the hammer during operation are subject to wear, which leads to a decrease in their service life. In accordance with the literature data in the practice of engineering uses many methods of hardening, which do not give a significant effect. Therefore, the application of new methods of surface hardening has become topical. These methods include ion-plasma chromium plating. On the basis of experimental studies, the effect of ion-plasma chromium plating on the wear resistance and mechanical properties of hydraulic hammer parts has been established, structural changes in the material have been analyzed. Ion-plasma chromizing of the parts pro-motes the increase of their wear resistance in 1.75 times as compared to those which are not strengthened. The technology of ion-plasma chromizing secures the running of the strengthened parts without breaking off and chipping. The zones of structural changes are marked on the sec-tions of parts damages, which are typical for the effects of the second hardening.

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Перегляд Випуск 88 Том 1 / Выпуск 88 Том 1 за Ключові слова "10.30977/BUL.2219-5548.2020.88.1.7"