What are the main materials used in high pressure hose?


The materials used in high-pressure hose are divided into non-metallic and metallic materials, and the non-metallic materials often used in the production process of high-pressure hose are butyl rubber, styrene-butadiene rubber, chloroprene rubber, etc. With the advancement of technology and the development of the rubber industry. EPDM rubber, chlorosulphonated polyethylene, chloroether rubber, hydrogenated butyl rubber, etc. are gradually applied to high-pressure hose manufacturers products. Used to manufacture high-performance, high value-added high-pressure hose products. Non-metallic reinforcing materials are nylon, polycool fibers, with the development of the textile industry, aramid fibers and other high-performance materials are gradually applied to high-pressure hoses. Metallic materials have a round cross-section of copper-plated steel wire, galvanized steel wire for the skeleton layer materials, with computer simulation, testing and other technological advances, flat steel wire (cross-section of oval copper-plated steel wire) will be used in high-pressure hose. New materials used in high-pressure hose:
 (1) EPDM Eli: excellent heat resistance, steam resistance, weather aging, chemical corrosion and excellent electrical insulation properties, especially for glycol ether braking fluid and vegetable oil resistance is better. Suitable for the manufacture of heat-resistant, steam-resistant and corrosion-resistant medium of high-pressure hose. (2) Chlorosulfonated polyethylene rubber: excellent resistance to ozone and weather aging properties. Good chemical resistance, excellent flame resistance, oil resistance and tear resistance. Suitable for the manufacture of high-pressure hose resistant to strong corrosive media, flame-resistant, ozone aging requirements, especially for the manufacture of hose used in harsh atmospheric conditions of the outer layer of the rubber material. (3) Chloroether rubber: excellent weather aging resistance. Good oil and solvent resistance. Good flame resistance and low permeability, suitable for the manufacture of oil, ozone, weather aging and low permeability high-pressure hose. (4) hydrogenated butadiene rubber: excellent oil resistance, corrosion resistance, high and low temperature resistance, oxidation resistance, dynamic fatigue resistance, ozone resistance. Suitable for the manufacture of oil resistance and other special requirements of high-pressure hose. (5) NBR/PVC: excellent oil resistance, abrasion resistance, ozone resistance. Extrusion performance is good, easy to process, suitable for the manufacture of wear-resistant, ozone-resistant environment used in high-pressure hose outer rubber. (6) aramid fiber: aramid fiber with ultra-high strength, high modulus and high temperature, acid and alkali resistance, light weight and other excellent properties, its strength is 7 times that of steel wire. Modulus of steel wire or glass fiber 2-3 times. Toughness is 2 times that of steel wire, and the quality is only about 1/5 of steel wire. It does not decompose or melt under the temperature of 450℃, and it has good insulation and anti-aging properties. Very long life cycle. (7) flat steel wire: high strength, high modulus, high temperature flexural resistance, good pressure-bearing properties. Especially good resistance to torsion and bending deformation performance. High-pressure steel wire braided/wound hose made with flat steel wire has much better pulse performance than hose made with high-strength (ultra-high strength) steel wire.

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