The invention relates to the technical filed of automotive part manufacture, in particular to a high-pressure
power steering gear rubber tube and a manufacturing process of the high-pressure
power steering gear rubber tube. The high-pressure
power steering gear rubber tube is formed by sequentially
compositing an inner
pipe rubber layer, a
fiber wire enhancement layer and an outer
pipe rubber layer from inside to outside. The main
sizing material is chlorosulfonated
polyethylene rubber (CSM). Each layer of rubber enables a banburying
machine to be manufactured into rubber compounds to be compounded and extruded, two copies of
fiber wires are weaved on the outer surface of the inner
pipe rubber layer, then a pipe blank is formed by extruding the outer pipe rubber layer and wrapping on the surface of the
fiber wire, the pipe blank is sleeved on a pipe die core to be arranged in a steam
vulcanization tank for
vulcanization, and the rubber pipe is obtained after depoling and level pressure of the pipe blank. The high-pressure power steering gear rubber tube has the advantages of being heat-resisting, oil-resisting,
voltage-resisting, age-resisting, good in pulse performance, low in manufacture cost and high in percent of pass, and greatly meeting development requirements of modern automotives.