Analysis of Methods for Protecting the Working Surfaces of Disc Brakes from Moisture
DOI:
https://doi.org/10.52171/herald.395Keywords:
disc-shoe brake, friction pair, disc friction belt, surface protection methods, moisture removal, electroosmotic effectAbstract
In this article, theoretical and experimental studies of methods for protecting the working surfaces of vehicle disc-shoe brakes from moisture have been carried out. The results showed that the method for applying a coating to the disc’s friction belts should be compatible with its base material, and their linear thermal expansion rates should be approximately identical to prevent coating failure; a system for removing moisture from the friction belts, based on the effect of elec-troosmosis, was proposed, allowing moisture to move into the cooler; to limit the replenishment of water entering through the microprotrusion channels from the matte surfaces of the rotating disc, an annular recess for water collection should be provided at the boundary between matte and pol-ished surfaces; and an additional recommendation for testing wet friction pairs of vehicle disc-shoe brakes should be incorporated into Regulation №13 of the UN Economic Commission for Europe (UNECE).
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