The impetus for the development of the rubber hose industry comes from the continuous improvement of application requirements and environmental protection requirements. Application requirements mainly include ambient temperature, pressure, bending radius, conveying medium, pulse life, inner diameter of rubber hose, etc.; environmental protection requirements mainly involve the automobile industry, including medium permeability, exhaust gas emissions, changes in medium (such as fuel and refrigerant), etc. At present, the fluid medium used in the automobile industry is improving and updating rapidly, and governments of various countries are paying more and more attention to environmental protection issues such as automobile exhaust emissions. The changes in the above-mentioned applications and environmental protection requirements are more conducive to the heat resistance, oil resistance, low temperature resistance and long service life of automobile hoses. Higher requirements have been put forward for such properties, which has made the raw materials used in automobile hoses change greatly. Many traditionally used general-purpose rubber materials (natural rubber, styrene-butadiene rubber, etc.) are no longer suitable for new environmental protection and application requirements. Special rubber materials such as butadiene rubber High-performance synthetic rubber materials such as nitrile rubber, silicone rubber, fluororubber, chlorosulfonated polyethylene rubber, and hydrogenated nitrile rubber are gradually replacing traditional materials and used in key fluid management systems such as turbocharging, air conditioning, heat dissipation, and fuel. With its excellent performance in complex environments, it has been increasingly widely used to adapt to the changes in the working environment brought about by the tightening of environmental protection policies and the improvement of media. Therefore, the current market competition in the automotive rubber hose industry is mainly reflected in the application of new materials, new processes, and new equipment. As a big country in the production and consumption of rubber hoses, my country's vigorous development of domestic automobile, machinery, agriculture, petroleum and other industries has brought continuous strong demand for rubber hoses.
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