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Manufacturing method for composite hub

A technology of composite materials and manufacturing methods, applied in household appliances, other household appliances, household components, etc., can solve problems such as complex shapes, inability to manufacture structural performance requirements, low fiber content, etc.

Inactive Publication Date: 2016-12-07
HARBIN FRP INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of this method is that, because it is a natural inhalation resin, the fiber content is low, and the hub produced by it has no spokes, it cannot manufacture a one-piece automobile hub with strict structural performance requirements and complex shapes.

Method used

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  • Manufacturing method for composite hub
  • Manufacturing method for composite hub
  • Manufacturing method for composite hub

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 manufactures carbon / epoxy composite material wheel hub

[0023] 1. Fabrication of Preforms

[0024] 1) The overall hub structure ( figure 2 As shown in (a), it is divided into three sub-structures according to the lay-up and process requirements of the product ( figure 2 Shown in (b), (c), and (d)) as the preform model, design and manufacture the mold according to the preform model, and pre-cut the reinforcement material (T-700 carbon fiber and fabric) according to the requirements of the design layer; the preform The cut reinforcement material is placed in the designed and manufactured mold according to the design level requirements and order, and 2 grams of shaping glue is spread on each layer. After all layers are laid, the mold is clamped, heated and shaped, and the heating time is 2 hours. The temperature is 130 degrees, after cooling to room temperature, the exposed burrs are cut, and the wheel core preform (1), the spoke preform (2), and the rim ...

Embodiment 2

[0033] Embodiment 2 manufactures carbon / phenolic composite material hub

[0034] 1. Fabrication of Preforms

[0035] 1) The overall hub structure ( figure 2 As shown in (a), it is divided into three sub-structures according to the lay-up and process requirements of the product ( figure 2 Shown in (b), (c), and (d)) as the preform model, design and manufacture the mold according to the preform model, and pre-cut the reinforcement material (T-700 carbon fiber and fabric) according to the requirements of the design layer; the preform The cut reinforcement material is placed in the designed and manufactured mold according to the design level requirements and order, and 2 grams of shaping glue is spread on each layer. After all layers are laid, the mold is clamped, heated and shaped, and the heating time is 2 hours. The temperature is 130 degrees Celsius, after cooling to room temperature, the exposed burrs are cut and pressed into wheel core preforms (1), spoke preforms (2), a...

Embodiment 3

[0043] Example 3 Glass fiber / multi-component heterocyclic resin composite hub

[0044] 1. Fabrication of Preforms

[0045] 1) The overall hub structure ( figure 2 As shown in (a), it is divided into three sub-structures according to the lay-up and process requirements of the product ( figure 2 Shown in (b), (c), and (d)) as the preform model, design and manufacture the mold according to the preform model, and pre-cut the reinforcement material (T-700 carbon fiber and fabric) according to the requirements of the design layer; the preform The cut reinforcement material is placed in the designed and manufactured mold according to the design level requirements and order, and 2 grams of shaping glue is spread on each layer. After all layers are laid, the mold is clamped, heated and shaped, and the heating time is 2 hours. The temperature is 130 degrees Celsius, after cooling to room temperature, the exposed burrs are cut and pressed into wheel core preforms (1), spoke preforms ...

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Abstract

The invention relates to a manufacturing method for a composite hub. The manufacturing method comprises the following steps that a reinforced fiber perform is manufactured in advance; a sealed die cavity is filled with the reinforced fiber perform, and then is vacuumized; a resin system is injected in the die cavity with compressed air; and the composite hub is obtained after curing. The resin system is injected in a die with the compressed air, and pressure is maintained for a certain time after injection is completed, so that the acceptable volume content of a reinforced material is increased, the purpose that the volume content of the reinforced material is controllable is achieved, and the mechanical strength of the hub is controlled and improved. The composite hub, manufacturing according to the manufacturing method, is extremely low in void ratio and high in fiber content, fibers are uniformly distributed in a composite material structure, without folds, and since the perform is manufactured in a blocked manner, a complex product is split into simple components, the production efficiency is high, and the quality is controllable and stable.

Description

technical field [0001] The invention relates to a method for manufacturing a wheel hub, in particular to a method for manufacturing a composite material wheel hub through a preformed body. Background technique [0002] Reducing the quality of automobiles, reducing fuel consumption and reducing emission pollution have become the core issues of the development of the automobile industry. Wheels are one of the important safety components of automobiles. At present, the use of carbon composite materials to manufacture automobile wheels can reduce the weight of aluminum alloy wheels by 20-40%. The current production method of automobile wheel is prepreg method. The steps are to lay a roughly cut prepreg sheet on the surface of the mold on a prepared male or female mold, and then cut it according to the shape required by the mold. The redundant part is changed according to the design level and fiber direction of each layer, and at the same time, it must be pressed manually to mak...

Claims

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Application Information

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IPC IPC(8): B29C70/48B29C70/36B29L31/32
CPCB29C70/36B29C70/48B29L2031/32
Inventor 刘在阳
Owner HARBIN FRP INST
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