This indicates a significant increase in the variety of hoses produced, and there are more choices of reinforcing materials for other hoses. The grade of fiber and steel wire can basically satisfy the demand of hose production. In the production of air, water, low-pressure hose is still rayon, polyester fiber as reinforcing material, and in the production of high-pressure hydraulic hose is still steel wire as a hose reinforcing material, the choice of steel wire, according to the production of hydraulic hose pressure and scale of different, steel wire diameter ranging from 0.20mm to 0.80mm. In the production of large-diameter hose, but also the use of steel cord and flat steel wire as reinforcing material, with high strength, density and anti-fatigue properties.
Now from the brake hose industry, the choice of molding process with the same foreign countries, but also hard core method, soft core method and no core method of three kinds, with a soft core method and no core method to produce more hose. From the point of view of vulcanization process, the vast majority of still choose to wrap the nylon water-covered cloth after steam vulcanization. In the past ten years, nylon water wrapping cloth has replaced cotton water wrapping cloth, with nylon cloth tape has been successful in many domestic hose manufacturers, which is an ideal way to improve the appearance of the quality of the hose. The appearance quality of the hose wrapped with nylon water wrapping cloth is in full compliance with the requirements of HG2185-91 rubber hose appearance quality standards. Followed by the increase in the amount of synthetic rubber, hydraulic hose, high-pressure resin hose, oilfield hose, automotive industry hose, as well as large-diameter, large-length hose are successively industrialized production to steel wire or fiber braided and surrounded by the proportion of the structure of the great increase in the gap with the world's advanced level of the hose industry is greatly shortened!