STEEL CABLE CONVEYOR BELT WITH IMPROVED PENETRATION AND RIP RESISTANCE

摘要

A steel wire or cable conveyor belt with improvedpenetration and rip resistance is made by plying up aseries of rubberized longitudinal steel cables orwires to give a core, placing a ply of rubberizedwoven fabric such as polyaramide or nylon over thecore, such as a tire breaker ply or plies over thecore, then a ply of rubberized closely placed,essentially in contact wire, preferably of heavy tireply cable, such as an earth mover ply, cut to coverthe core in transverse direction to allow the steelwire or cable to be positioned perpendicular over thelongitudinal steel wire or cable, apply a cover stockply over the transversely positioned short wire orcable. The underside of the longitudinal steel wireor cable core has a rubberized woven fabric positionedthere beneath and a rubberized pulley ply beneath thewoven fabric ply. The plied up belt is cured withpressure and heat to adhere the plies together andcure the rubber. The usual belt cure pressure of 200to 500 psi and temperatures of about 140°C to about160°C for about 30 to about 90 minutes can be used,depending on the curative.