High-pressure hose and production method thereof

Abstract

The invention discloses a high-pressure hose and a production method thereof. The high-pressure hose comprises an inner rubber layer, a reinforcing layer and an outer rubber layer which are sequentially arranged from inside to outside. The reinforcing layer is composed of two layers of circularly-woven pipe blanks woven from warp and weft. The two layers of circularly-woven pipe blanks are sewn into a whole through lifting warp arranged in a reciprocating crossed manner and are of a plain weave structure. The circularly-woven pipe blanks are made of high-strength synthetic fibers. The inner rubber layer and the outer rubber layer are made of polyurethane. The production method of the high-pressure hose includes the steps that the reinforcing layer is woven from the high-strength synthetic fibers through a circular weaving machine, the outer side of the reinforcing layer is coated with the polyurethane through a thermal coating method, and the inner side of the reinforcing layer is coated with the polyurethane through an inner rubber layer steam vulcanization method. The high-pressure hose has the advantages that the pressure-bearing strength is remarkably improved and the hose can be used for conveyance under the high-pressure condition; and the soft hose is good in flexibility, capable of being flatly wound, convenient to operate, high in laying and reeling speed, flexible, high in environmental adaptability and the like.

Description

technical field [0001] The invention relates to the technical field of pipelines, in particular to a high-pressure hose and a production method thereof. Background technique [0002] The hose is widely used due to its excellent characteristics such as easy laying and use. However, due to some limitations of its own characteristics, the ordinary hose still has the following shortcomings: 1. The fiber reinforced layer of the ordinary hose is a single-layer circular twill weave. The strength of the woven tube blank is not enough; 2. The ordinary hose adopts the molding process of forming the inner and outer rubber layers of the hose at the same time by one-time thermal coating, while the high-pressure hose has a high pressure-bearing strength requirement, and the thickness and density of the fiber-reinforced layer are low. It is very high, and the molding process of one-time thermal coating of the inner and outer rubber layers cannot be adopted. [0003] Aiming at the problems...

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Problems solved by technology

[0002] The hose is widely used due to its excellent characteristics such as easy laying and use. However, due to some limitations of its own characteristics, the ordinary hose still has the following shortcomings: 1. The fiber reinforced layer of the ordinary hose is a single-layer circular twill weave. The strength of the woven tube blank is not enough; 2. The ordinary hose adopts the molding process of forming the inner and outer rubber layers of the hose at the same time by one-time thermal coating, while the high-pressure hose has a high pressure-bearing strength requirement, and the thickness and density of the fiber-reinforced layer are low. Very high, unable to adopt the molding process of one-time thermal coating of the inner and outer rubber layers

[0003] For the problems in the above-mentioned related technologies, no effective solution has been proposed yet

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