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Bionic composite material disc spring part and preparation method thereof

A bionic composite material and composite material technology, applied in the field of bionic composite disc spring parts and its preparation, can solve the problem of low forming pressure and achieve the effects of ensuring dimensional accuracy, easy and sufficient infiltration, and process optimization

Active Publication Date: 2018-09-07
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional hand lay-up process, vacuum bag pressure, autoclave and other processes commonly used in the forming of composite material parts are limited by the low forming pressure, and it is difficult to meet the above requirements.

Method used

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  • Bionic composite material disc spring part and preparation method thereof
  • Bionic composite material disc spring part and preparation method thereof
  • Bionic composite material disc spring part and preparation method thereof

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Experimental program
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specific Embodiment approach

[0057] 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:

[0058] The invention discloses a bionic composite disc spring part, such as figure 1 As shown, the disc spring part is formed by fully infiltrating the fiber reinforced layer structure with the resin with filler; the fiber reinforced layer structure is a shell-like multi-layer fiber reinforced layer structure, and the fiber reinforced body The shape of the fiber reinforced body 1 is the same as the external shape and size of the prefabricated disc spring. In this embodiment, it is a circular ring cut according to the external shape and size of the prefabricated disc spring. Such as Figure 3a and Figure 3b shown;

[0059] In order to further improve the strength and isotropy of the bionic composite disc spring part of the present invention, the fiber of the fiber reinforce...

Embodiment 1

[0064] The process of "finishing the fiber reinforcement layer through online infiltration with resin" refers to: cutting the fiber reinforcement according to the shape and size of the prefabricated disc spring parts, and laying up layers to form a layer structure; in the infiltration mold with a special structure The process of making composite material disc spring parts after fully infiltrating and curing on-line with resin, the specific preparation process is as follows:

[0065] Step 1: cutting fiber reinforcement 1;

[0066] In this embodiment, the fiber reinforced body 1 is cut twice. First, the fiber reinforced body 1 is cut according to the planar projection shape of the prefabricated part, such as Figure 3a shown; then, the fiber reinforced body 1 after the primary cutting is subjected to secondary cutting according to the geometric shape and size matched with the disc spring mould, as Figure 3b As shown, thereby completing the cutting of the fiber reinforced body ...

Embodiment 2

[0079] The process of "prepreg made of fiber reinforcement by off-line infiltration of resin, and then cured by heating the mold" refers to: cutting the prepreg of fiber reinforcement made by off-line infiltration according to the shape and size of the prefabricated disc spring parts, Then the fiber reinforced body prepreg is laminated in multiple layers to form a fiber reinforced body layer structure, and is cured in a heating mold through a hot pressing process to make a composite disc spring part. The specific preparation process is as follows:

[0080] Step 1: According to the volume ratio of fiber resin, the pre-prepared resin is infiltrated off-line to make a fiber reinforced body prepreg;

[0081] Step 2: Cut the fiber reinforced body prepreg according to the shape and size of the prefabricated disc spring parts;

[0082] Step 3: lay out the multi-layer cut fiber reinforced prepreg layer by layer on the surface of the heating mold to form a fiber reinforced layer struct...

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Abstract

The invention provides a bionic composite material disc spring part and a preparation method thereof. The disc spring part is formed by fully infiltrating and curing a fiber reinforcement layer structure in resin; the fiber reinforcement layer structure is formed by overlapping and laying of multiple single-layer fiber reinforcements; and the fiber reinforcement layer can be completely cured through online infiltrating of the resin and can also be prepared in the mode that fiber reinforcement prepreg is made through offline infiltrating of the resin and then curing is completed through heatingof a mold of a special structure. The preparation method creatively adopts the resin transfer molding process and the hot pressing process to prepare the light-weighted composite material disc springpart. The bionic composite material disc spring part and the preparation method thereof meet the urgent requirements for the high-performance and light-weighted composite material disc spring part ofthe fields like aerospace, nuclear power, ocean engineering, heavy machines, automobiles, armored cars and cannons, and solve the problems that existing widely-used metal disc spring parts in the relevant fields are high in mass, not resistant to corrosion, poor in fatigue performance and the like.

Description

technical field [0001] The invention belongs to the technical field of composite material parts manufacturing, and in particular relates to a bionic composite material disc spring part and a preparation method thereof. Background technique [0002] Disc spring, referred to as disc spring, is usually formed by metal steel strip, steel plate or forging billet. It is a truncated conical spring with high stiffness and variable stiffness. Compared with other types of springs, disc springs are smaller in the direction of load, and can withstand large loads with small deformation, and the axial space is compact; by changing the number of discs or the combination of disc springs, different springs can be obtained. The bearing capacity and characteristic curve, so as to adapt to a wider range of use. As a strong buffer and shock absorbing spring, disc springs can be used in aerospace, nuclear power, marine engineering, heavy machinery, armored vehicles, artillery and other military ...

Claims

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Application Information

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IPC IPC(8): F16F1/18B29C70/48B29L31/00
CPCB29C70/48B29L2031/774F16F1/021F16F1/185
Inventor 韩奇钢李琳徐凯强韩志武
Owner JILIN UNIV
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