The main raw materials for API petroleum hoses include polyester fiber, steel wire, and rubber. Among them, polyester fiber is the main skeleton material of the hose, which can provide sufficient strength and stiffness; Steel wire is a reinforcing material for hoses, which can improve their pressure resistance and tensile strength; And rubber is the sealing material of the hose, which can ensure that the hose will not leak. In addition, there are some special raw materials used to manufacture special parts of hoses, such as high-temperature resistant materials used to make high-temperature hoses, and corrosion-resistant materials used to make corrosion-resistant hoses.

 

II Application of polyester fiber in API petroleum hoses

 

Polyester fiber is a synthetic fiber with high strength, high modulus, and low density, which has excellent mechanical properties and heat resistance. In API petroleum hoses, polyester fiber is usually used as the main skeleton material of the hose, which can withstand working conditions under high pressure and high temperature. Polyester fiber also has good wear resistance and fatigue resistance, which can ensure the service life of the hose. In addition, polyester fibers can also be used in combination with other materials, such as steel wires, to enhance the strength and tensile strength of hoses.

 

III. Application of Steel Wire in API Petroleum Hoses

 

Steel wire is a commonly used reinforcing material that can be used to improve the pressure resistance and tensile strength of hoses. In API petroleum hoses, steel wires are usually woven into a mesh structure and then wrapped around a polyester fiber skeleton to form a reinforcing layer. This reinforced structure can effectively improve the load-bearing capacity and service life of the hose. In addition, steel wire can also be composite with other materials, such as polyester fiber, which can further improve the strength and stiffness of the hose.

 

IV. Application of rubber in API petroleum hoses

 

Rubber is a commonly used sealing material that ensures that hoses do not leak. In API petroleum hoses, rubber is usually coated on the outer surface of the reinforcement layer, forming a sealing layer. This sealing layer can effectively prevent liquid or gas from leaking out from the inside of the hose. In addition, rubber can also be used in combination with other materials, such as polyester fiber, which can further improve the oil and corrosion resistance of hoses.