Carbon-carbon composite pantograph slide plate and preparation method thereof
The invention discloses a preparation method of a carbon-carbon composite material pantograph slide plate, which is characterized by comprising the following steps: uniformly mixing petroleum coke, pitch coke and carbon black, carrying out mixing and kneading treatment, adding modified graphene oxid...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a preparation method of a carbon-carbon composite material pantograph slide plate, which is characterized by comprising the following steps: uniformly mixing petroleum coke, pitch coke and carbon black, carrying out mixing and kneading treatment, adding modified graphene oxide, and carrying out mixing and kneading treatment to obtain a mixed material; adding the mixed material and the modified carbon fiber into a hot rolling mill, and repeatedly rolling to obtain a rolled material; the rolled material is crushed and then added into a pressing machine to be pressed and formed, and a biscuit is obtained; adding the biscuit into a sintering furnace, and roasting in an N2 atmosphere to obtain a sintered body; putting the sintered body into an impregnation tank, and adding molten medium-temperature pitch for impregnation to obtain an impregnated material; and repeating the sintering and dipping processes for 2-3 times to obtain the carbon-carbon composite material pantograph slide plate. Th |
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