Preparation method of high-pressure-resistant, high-temperature-resistant and water-resistant water pump flexible joint rubber

Abstract

The invention belongs to the technical field of high polymer materials, and particularly relates to a preparation method of high-pressure-resistant, high-temperature-resistant and water-resistant water pump flexible joint rubber. The preparation method is simple, adopts rotary forming, can achieve batch production on an assembly line, and utilizes the advantages of elasticity, high air tightness,medium resistance, weather resistance, radiation resistance and the like of a rubber composition, after iron wire cloth with high strength and strong cold and hot stability is compounded with the rubber composition, the weight is light, the elasticity is good, transverse, axial and angular displacement can be generated during installation, and the rubber is not limited by non-center-through of a pipeline and non-parallel flanges, can reduce structural transmission noise during work, is strong in vibration absorption capacity, has the advantages of being high in pressure resistance, good in elasticity, large in displacement, capable of balancing pipeline deviation and absorbing vibration, and good in noise reducing effects, convenient to install, capable of greatly reducing vibration and noise of a pipeline system, capable of solving the problems of connector displacement, axial stretching and retracting, non-concentricity and the like of various pipelines, good in sealing performance,light in weight, convenient to install and maintain, long in service life and resistant to puncture.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to a method for preparing flexible joint rubber of high-pressure, high-temperature, and water-resistant water pumps. Background technique [0002] Water pump flexible rubber joints, also known as rubber shock absorber throats, flexible rubber joints, rubber soft joints, rubber expansion joints and other names. This product is a tubular rubber part composed of inner and outer layer rubber, ply and steel traveler. After high temperature and high pressure vulcanization, it is combined with a metal flange or a loose sleeve of a parallel joint. For example, Chinese patent CN105003765A discloses a bendable flange. Rubber soft joint, Chinese patent CN204554163U discloses a split flange type shock absorber throat. Many of the above technologies have disclosed various flexible rubber joints, but there are almost no reports on flexible rubber joints. However, the purpose and core e...

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Problems solved by technology

Existing rubber spheres are generally still made of natural rubber, nitrile rubber, and EPDM rubber using hard mold technology. However, the existing water pumps can flex the joint rubber, and the corrosion of the joint rubber material by oxygen is very serious, especially It is water leakage at the installation place of the pipe and the rubber joint, and the rubber ball has been soaked in water and air for a long time. High density, ability to withstand high pressure, good elastic deformation effect and easy processing are required. It is urgent to develop a preparation method for high-pressure, high-temperature, water-resistant, water-pump flexible joint rubber to meet the existing market demand and performance requirements.

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