Южно-Российский государственный политехнический университет (НПИ) имени М. И. Платова,
Новочеркасск, Россия:

С. Н. Сергеенко, доцент, старший научный сотрудник, канд. техн. наук, эл. почта: sergeenko@gmail.com
А. Н. Васильев, аспирант, эл. почта: sasha_vasilev55@mail.ru
А. Н. Яценко, доцент, канд. техн. наук

Южный федеральный университет, Ростов-на-Дону, Россия:
М. А. Мараховский, начальник сектора, канд. техн. наук

Рассмотрена технология получения горячекомпактированных композиционных материалов (КМ) Pb – C на основе стружковых отходов утилизированных электродов аккумуляторных батарей. На основе двухфакторного эксперимента изучено влияние содержания графита CГК и времени механической активации (МА) τ_МА на относительную плотность формовок, твердость (HRR) и прочность на срез (τ_В) горячекомпактированного композиционного материала Pb – C. В результате исследования гранулометрического состава активированных шихт Pb – С выявлена агломерация мелких и крупных частиц при получении шихты в режиме смешивания. Увеличение продолжительности МА до экстремальных значений (τ_МА = 1,8 кс) приводит к разрушению агломератов. Показано, что минимальные значения относительной плотности формовки зависят от содержания в шихте фракции с размерами 35–63 мкм и наблюдаются при введении 0,5 % (мас.) графита и продолжительности МА 1,8 кс. На основе многокритериальной оптимизации определены оптимальные значения технологических факторов (τ_МА = 3,0 кс; С_ГК = 0,15 % (мас.)) приготовления шихты, полученной в режиме МА, обеспечивающие повышенные значения прочности и твердости (HRR = 85, τ_в = 15,6 МПа) горячекомпактированного композиционного материала Pb – С.

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