Sleeve connecting method and product

Abstract

The invention relates to a sleeve connecting method. A continuous fiber reinforcement fabric sleeve is arranged on components needing to be connected in a sleeving manner, then resin is coated or a resin coating is pasted so that the fabric sleeve is soaked with the resin, or a continuous fiber reinforcement fabric resin prepreg sleeve is arranged on the components needing to be connected in a sleeving manner, and finally a vacuum bag or a plastic sleeve contracting after heating is used for solidification so as to enable the connecting position of the components needing to be connected to be covered with a continuous fiber reinforcement composite material. The invention further discloses a connecting product which is obtained through the above sleeve connecting method and is at least provided with the connecting position covered with the continuous fiber reinforcement composite material. According to the sleeve connecting method and the product, the components needing to be connected serve as mandrels of the final product, the development cost for dies is saved, the advantage that the fabric sleeve is deformable is sufficiently used, connection between the different components can be good, and the components can be connected in a clamping manner; and a load-carrying structure of the composite material of the sleeve acts and can serve as a main load-carrying structure, so that the production cost is reduced, and the process of the product is simplified.

Description

technical field [0001] The invention relates to the technical field of preparation of structural composite materials, in particular to a casing connection method and a product. Background technique [0002] Continuous fiber-reinforced resin matrix composites have high specific strength and specific stiffness, and are widely used in aerospace, oil pipelines, high-pressure vessels, civil sports equipment and other fields. Continuous fiber reinforced resin matrix composites are also commonly used for further reinforcement of other materials and structures, such as reinforcement of building walls. [0003] However, in practical applications, it is often necessary to prepare parts with complex structures, such as the frame of a bicycle, the fuselage assembly of an airplane, and the like. However, the direct preparation of these complex structures is not only technically difficult, but also has a relatively high manufacturing cost. The common solution is to prepare simple compone...

AI Technical Summary

Problems solved by technology

However, the above-mentioned process is relatively complicated, and the size of the casing needs to be customized according to different connectors, and the cost is high

[0008] In addition, none of the connection methods described in the above patent documents can be directly applied to continuous fiber-reinforced casing materials, which are limited by the characteristics of the casing material itself and the bonding and joining methods, the strength of the casing finally obtained and the impact on the overall product. The reinforcing effect of the continuous fiber reinforced casing material is far lower than that of the continuous fiber reinforced casing material, which cannot meet the needs of the growing society for light, high strength, low cost and easy to form materials.