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Spiral spring production method based on continuous fibers

A technology of continuous fiber and manufacturing method, applied in the field of composite material parts forming, can solve the problems of low spring stiffness coefficient, complex forming process, pollution of equipment cost, etc., and achieve the effect of improving stiffness coefficient, simple forming process and good surface quality

Inactive Publication Date: 2017-05-10
JILIN UNIV
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Problems solved by technology

[0003] The present invention provides a new method of manufacturing a coil spring based on continuous fibers, the purpose of which is to overcome the problems of "low spring stiffness coefficient, poor surface quality, complicated molding process, mold pollution and equipment problems" existing in the existing coil spring method manufactured by pultrusion process High cost” and other shortcomings, provide a high-performance coil spring production method based on continuous fiber reinforcement with “large stiffness coefficient, good surface quality, and simple forming process”, so as to improve the forming theory of fiber reinforced coil springs, realize its technological innovation, and promote Its application in my country's aviation, aerospace, national defense, high-speed rail, automobile and other industrial technologies

Method used

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  • Spiral spring production method based on continuous fibers
  • Spiral spring production method based on continuous fibers
  • Spiral spring production method based on continuous fibers

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specific Embodiment approach

[0032] In order to further illustrate the technical solution of the present invention, in conjunction with the accompanying drawings, the specific implementation of the present invention is as follows:

[0033] Such as figure 1 Shown, the present invention discloses a kind of coil spring manufacturing method based on continuous fiber, and concrete process is as follows:

[0034] S1: rolling continuous fiber;

[0035] The continuous fiber is rolled as a reinforcement. In this process, only the continuous fiber 1 can be rolled independently, or the continuous fiber 1 can be rolled into a non-metallic core material 22, a metal core material 23, or a non-metallic / metal hybrid composite core material 24 One of.

[0036] S2: a resin infiltration;

[0037] Put the rolled continuous fiber reinforcement into the prepreg tank 2, and the prepreg tank 2 is filled with the resin prepreg 3 to prepare the fiber resin prepreg 4;

[0038] S3: secondary resin infiltration;

[0039] The fib...

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Abstract

The invention discloses a spiral spring production method based on continuous fibers and relates to a composite part forming technology. In the invention, the production of a spiral spring is realized based on continuous fiber reinforcement through the processes of resin wetting, prepreg coating, vacuum assisted resin injection, mandrel winding and demoulding. According to the experimental result, the produced spiral spring based on continuous fibers can be lightened by 40-60% in comparison with the traditional spiral spring, the fatigue life is prolonged by 80%, and the rigidity coefficient is improved by 1-2 times. Moreover, the spiral spring also has the advantages of relatively high specific strength and specific rigidity, good corrosion resistance, impact resistance and high-temperature property, good surface quality, simple forming technology, little pollution to a forming mould, and the like.

Description

technical field [0001] The invention belongs to the technical field of forming composite material parts, and in particular relates to a continuous fiber-based coil spring manufacturing method. Background technique [0002] Coil springs based on continuous fiber reinforcement have high specific strength, specific stiffness, and good corrosion resistance, fatigue resistance, impact resistance and high temperature performance, making them widely used in aviation, aerospace, national defense, high-speed rail, automobiles and other industries. It has a very broad application prospect. Unfortunately, with the help of the pultrusion process, the coil springs produced have problems such as "low spring stiffness coefficient, poor surface quality of spring forming, complicated forming process, mold pollution and high equipment cost". Contents of the invention [0003] The present invention provides a new method of manufacturing a coil spring based on continuous fibers, the purpose ...

Claims

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Application Information

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IPC IPC(8): B29C53/60B29C53/80B29B15/14
CPCB29C53/60B29B15/14B29C53/8008B29C53/825B29L2031/7742
Inventor 韩奇钢仲济轮
Owner JILIN UNIV
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