A high-strength aging-resistant high-pulse flame-retardant hydraulic hose and its preparation method

Abstract

The invention discloses a high-strength aging-resistant anti-high-pulse flame-retardant hydraulic rubber pipe, and belongs to the technical field of novel materials. The pipe comprises an inner rubberlayer, a first glass fiber layer, a steel wire winding reinforcement layer, a second glass fiber layer, a steel wire braiding reinforcement layer and an outer rubber layer which are sequentially arranged from inside to outside; and the winding directions of the first glass fiber layer and the second glass fiber layer are opposite. According to the pipe, inner rubber plays a role in sealing underthe action of a high-pressure medium so that the pipe can be good in oil resistance, good in fatigue resistance and pulse resistance, relatively high in stress at definite elongation and tearing resistance, relatively small in stress relaxation, relatively good in process performance and relatively high in physical and mechanical performance; outer rubber mainly plays a role in protecting the inner rubber layer, the first glass fiber layer, the steel wire winding enhancement layer, the second glass fiber layer and the steel wire braiding reinforcement layer against the external environment influence so that the pipe can have wear resistance, aging resistance (ozone and hot air), good adhesion and good flexibility; and the process steps of a preparation method of the pipe are reasonable indesign, the working efficiency is improved by 20%, and the product quality of the hydraulic rubber pipe is improved.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to a high-strength aging-resistant high-pulse flame-retardant hydraulic rubber hose. The invention also relates to a preparation method of a high-strength aging-resistant high-pulse flame-retardant hydraulic rubber hose. Background technique [0002] At present, the petroleum, chemical, coal, mining, automobile, agricultural machinery, and construction machinery industries all demand a large number of hydraulic hoses. Hydraulic hoses are widely used because of their low noise, high transmission efficiency, softness, and easy installation and use. With my country's economic With the development of infrastructure and construction, the requirements for hydraulic hoses are getting higher and higher. Because of the special application occasions of hydraulic hoses, hydraulic hoses are in contact with hydraulic oil for a long time, and the hydraulic oil flowing continuousl...

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Problems solved by technology

[0003] Purpose of the invention: In order to overcome the above deficiencies, the purpose of the present invention is to provide a high-strength anti-aging and high-pulse flame-retardant hydraulic hose, which improves the product quality of the steel wire wound hydraulic hose, increases the number of pulses in the use process of the product, and reduces the use process. permanent deformation, avoid pinholes and liquid leakage during use, and prolong the service life of steel wire wound hydraulic hoses

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