Abstract
The truck bias tyre bead wire coating is improved, by adjusting the rubber system, reduce the bead wire wrapped filler, appropriately increasing the amount of carbon black, and using resorcinol-formaldehyde donor-silica and cobalt salt adhesion system, the strength and adhesion property of bead wire coating were improved, bead burst and the prick-out of bead wire were decreased, the bad ratio of tire caused by bead problems was reduced from 1.3% to below 0.1%, significantly improve the actual service life of tyre.
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