APPLICATION OF GRINDING STONE BLOCK TO PREVENTION OF WHEEL-SKIDDING OF HIGH SPEED VEHICLES

Resin-bonded grinding stone block was applied to the shoe of a special tire cleaning device mounted on the vehicle for the New Tokaido Line in order to improve the adhesion and prevent the wheel-skidding. The grinding stone shoe which was apt to be abraded and to grind the wheel-tread more or less had the tendency to remove undesirable adhesive material and produce a more active surface with improvement of adhesion. The abrasion of grinding stone block increased in the order of emery, single crystal aluminium oxide, regular aluminium oxide and silicon carbide as abrasive grain material and with grain percent and inversely with grain size. A running test with the vehicles has shown the tendency of the frequency of wheel-slips being reduced under use of the grinding stone shoe.