High-toughness abrasion-resistant PVC hose and processing method thereof

Abstract

The invention provides a high-toughness abrasion-resistant PVC hose and a processing method thereof. A rib line layer is processed between an inner layer and an outer layer of a hose body. The inner layer of the hose body is an elastic layer made of a high-toughness material. The outer layer of the hose body is an abrasion-resistant layer made of an additive abrasion-resistant material. The rib line layer is formed by sleeving and weaving nylon lines in an interlinked mode. The processing method of the high-toughness abrasion-resistant PVC hose mainly comprises the following steps that the inner-layer raw material is extruded through a first screw extruder and cooled to form the inner layer of the hose body, the rib line layers are woven on the surface of the inner layer through a net weaving machine, and one of the rib line layers is extruded through a second screw extruder to cover the outer layer on the rib line layer, so that the hose body is formed. According to the adopted technical scheme, due to the fact that the rib line layer is formed by weaving the nylon lines in a net shape and intersected mode, and upper, lower, left and right rib lines are connected together in an intersected mode, the tensile strength and the tear-resistant strength of the rib line layer and the elasticity of the hose body are enhanced; and because the inner layer and the outer layer of the hose are subjected to function division design according to the using environment, the outer layer is made of the abrasion-resistant material, and the inner layer is made of the high-toughness material, so that the structure of the hose body is more reasonable, and the service life of the hose body is longer.

Description

technical field [0001] The invention belongs to the technical field of PVC plastic hoses, and relates to a high-toughness wear-resistant PVC hose and a processing method thereof. Background technique [0002] In the prior art, a PVC plastic hose is composed of an inner layer, an outer layer, and a rib layer sandwiched between the inner and outer layers. The inner layer and the outer layer are made of the same material, and the rib layer is formed by extrusion molding on the inner layer of the hose. Finally, the ribs are wound forward for one layer, and then reversely wound on the inner layer, and then the outer layer of the hose is squeezed outside the ribs layer. The PVC plastic hose processed in this way is only layer by layer due to the forward and reverse winding ribs on the inner layer, and no cross connection between the wire layers is formed. Its tensile and folding resistance , rebound and other mechanical properties are relatively poor. The inner layer and the out...

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Problems solved by technology

[0003] Aiming at the problems in the prior art that the rib structure of the PVC plastic hose is unreasonable and the design of the inner and outer layers is unreasonable, the present invention provides a high-toughness wear-resistant PVC hose, which is placed between the inner layer and the outer layer of the pipe body. A layer of ribs is processed. The inner layer of the pipe body is an elastic layer made of high-toughness materials. The outer layer of the pipe body is a wear-resistant layer made of added wear-resistant materials. The ribs layer is woven with nylon threads. Winding on the inner layer, the upper line of the winding is pulled out of the concave ferrule, the down line passes through the ferrule, and the down line is also pulled out of the downward ferrule at the position of the ferrule, and the next line The wire is wound and passed through the ferrule, and the coil is connected to form a rib layer

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