Carbon fiber composite spiral spring and manufacturing method and molding mold of carbon fiber composite spiral spring

Abstract

The invention relates to a carbon fiber composite spiral spring and a manufacturing method and molding mold of the carbon fiber composite spiral spring. The spring comprises a spiral spring wire. The spring wire is composed of a core shaft, a middle layer wrapping the outer portion of the core shaft and an outer layer wrapping the outer portion of the middle layer. The core shaft is composed of a plurality of carbon fiber reinforcement bodies. The core shaft is in a twisting shape. Each carbon fiber reinforcement body is composed of a plurality of carbon fiber bundles where resin is steeped and a layer of carbon fiber cloth where resin is steeped, wherein the carbon fiber cloth wraps the outer portions of the multiple carbon fiber bundles. The middle layer is formed by a plurality of layers of carbon fiber cloth where resin is steeped or carbon fiber bundles where resin is steeped. The outer layer is a protection sleeve formed by a hose. Compared with the prior art, the spring is low in mass, high in strength and rigidity and long in fatigue life, and the capacity of absorbing self vibration of the spring is high; meanwhile, insulation and rust resistance are good, the manufacturing method is simple and easy to achieve, operability is high, cost is reduced, and resources are saved; and the molding mold is high in designability, low in mold opening cost, easy to demount and small in mold pollution.

Description

technical field [0001] The invention relates to a composite material spring, in particular to a carbon fiber composite material helical spring, a manufacturing method thereof and a molding die. Background technique [0002] In recent years, the world's energy crisis, rising oil prices and environmental issues have urgently required the development of automobiles in the direction of lightweight. Usually, lightweight materials (or new materials) are used to replace traditional materials to achieve structural lightweight and further improve fuel efficiency. has become one of the hotspots of research. [0003] Lightweight materials (or new materials) include high-strength steel, aluminum, magnesium and titanium alloys, plastics and composite materials, etc.; compared with metal materials, carbon fiber composite materials (such as carbon fiber reinforced plastics (hereinafter referred to as CFRP)) It has the advantages of light weight, high rigidity, high strength, high fatigue ...

AI Technical Summary

Problems solved by technology

[0007] In addition, the existing molds for manufacturing fiber-reinforced composite material springs (EP 2647481 A1; US ​​4434121A; US 5988612 A; US 4473217 A; US 6986203 B2; CN 102909870 A) have complicated design process, high cost of mold opening, and Difficult to demould, low production efficiency

And in the process of mold closing and heating, due to uneven infiltration of carb

Images