Composite material bicycle component manufacturing method

Abstract

The invention relates to a composite material bicycle component manufacturing method. The composite material bicycle component manufacturing method comprises the steps that hot molten sodium chlorideis injected into a first mold; the hot molten sodium chloride is cooled to form a core material, and the core material is removed from the first mold; the core material is wrapped in an air bag; at least one fiber layer is located outside the air bag and in a second mold to form a to-be-formed part, wherein the at least one fiber layer comprises a bonding material; the air bag is expanded so thatthe at least one fiber layer is supported to abut against the inner surface of the second mold; heating and pressurizing are conducted to cure the bonding material; and the core material is removed. By means of the composite material bicycle component manufacturing method, a high-quality product can be prepared, the cost is low, and the pollution is low.

Description

technical field [0001] The invention relates to a method for manufacturing a composite material bicycle component. Background technique [0002] Generally, the wheel rim of a vehicle is made of metal (such as aluminum alloy or steel). Although it is easy to manufacture, it has the problem of heavy weight. In order to meet the demand for lightweight, carbon fiber rims are produced accordingly. Carbon fiber rims are light in weight and can have better structural strength. [0003] However, the conventional manufacturing method of carbon fiber rims is to bond multiple carbon fiber cloths layer by layer with resin bonding, and form them through moulding. Laying carbon fiber cloth layer by layer is extremely cumbersome and will reduce product production efficiency. Carbon fiber cloth bonding process Pores are prone to occur, there are gaps in the overlapping joints, and the structure is relatively uneven, resulting in poor stability of the product, and surface treatment (such as...

AI Technical Summary

Problems solved by technology

[0003] However, the conventional manufacturing method of carbon fiber rims is to bond multiple carbon fiber cloths layer by layer with resin bonding, and form them through moulding. Laying carbon fiber cloth layer by layer is extremely cumbersome and will reduce product production efficiency. Carbon fiber cloth bonding process Pores are prone to occur, there are gaps in the overlapping joints, and the structure is relatively uneven, resulting in poor stability of the product, and surface treatment (such as grinding, polishing, etc.) is necessary to obtain a product with a smooth surface, and the manufacturing cost is relatively high. high

Among them, in the process of stretching the carbon fiber cloth with the internal pressure method of the air bag, because the air bag is soft and easy to deform, if there is no relatively stable and flat core material, the outer peripheral surface is prone to unevenness, and the product quality and yield are not good.

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