DOI: https://doi.org/10.32515/2664-262X.2022.5(36).1.23-39
Формування еквідистантних робочих поверхонь прецизійних спряжень деталей машин
Об авторах
А.Є. Чернай, аспірант, Центральноукраїнський національний технічний університет, м. Кропивницький, Україна, e-mail: chernayae91@gmail.com, ORCID ID: 0000-0002-7262-0984
Анотація
Показано, що процеси триботехнологій припрацювання і відновлення з накладанням змінного струму та формуванням еквідистантних спряжених поверхонь є найбільш ефективними у порівнянні з іншими методами. Виділені основні фактори та дано їх характеристику. Розглянуті етапи припрацювання і відновлення поверхонь тертя при використанні змінного електричного струму. З'ясована сутність методу накладання змінного струму на спряжені деталі машин й отримання еквідистантних робочих поверхонь. Виявлено істотне покращення триботехнічних характеристик поверхонь тертя, їх формування під дією електрохімічної і механічної складових. Показано можливість припрацювання основних спряжень деталей гідроагрегатів, використання розроблених триботехнологій припрацювання і відновлення на основі законів електрохіміко-механічних процесів. З'ясовано дію електроліту, як рідкого адсорбенту при адсорбції на поверхнях тертя. Одним з таких адсорбантів використана олеїнова кислота. Показано, що при цьому найкращого результату можна досягти протіканням електрохімічної реакції травлення поверхонь спряжених деталей та їх механічного активування. В запропонованих технологіях використовується робоча напруга, яка не перевищує 5 В змінного електричного струму, а щільність струму 104 А/м2. Стравлювання поверхонь відбувається з частотою анодної поляризації. Електрохімічне травлення при припрацюванні базується на законах Фарадея. Реалізація зазначеного стравлювання відбувається за допомогою пасивуючого електроліту, що забезпечує максимальне вирівнювання (еквідистантність) поверхонь впливом відносної швидкості руху і навантаження. Зазначено, що розроблені технології залежать від характеру експлуатації та режимів тертя спряжень деталей вузлів, систем і агрегатів машин.
Формування еквідистантних робочих поверхонь прецизійних спряжень деталей машин
Об авторах
А.Є. Чернай, аспірант, Центральноукраїнський національний технічний університет, м. Кропивницький, Україна, e-mail: chernayae91@gmail.com, ORCID ID: 0000-0002-7262-0984
Анотація
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