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A Rapid Prototyping Method for Continuous Fiber Reinforced Plastic Automobile Parts

A continuous fiber and auto parts technology, applied in the field of rapid prototyping of continuous fiber reinforced plastic auto parts, can solve the problems of demanding resin viscosity and wettability, unsatisfactory appearance and performance, etc. Stomatal defects, cost reduction effect

Active Publication Date: 2021-03-02
GAC MITSUBISHI MOTORS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

WCM is high-temperature mold opening, pouring resin, and then closing the mold to cure. When forming parts, there is no vacuum. There are small air bubbles on the surface and inside of the formed parts, and the appearance and performance are not ideal.
At the same time, these two traditional rapid prototyping processes require the resin to quickly infiltrate the fiber layer, and the requirements for the viscosity and wettability of the resin are relatively strict.

Method used

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  • A Rapid Prototyping Method for Continuous Fiber Reinforced Plastic Automobile Parts
  • A Rapid Prototyping Method for Continuous Fiber Reinforced Plastic Automobile Parts
  • A Rapid Prototyping Method for Continuous Fiber Reinforced Plastic Automobile Parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] refer to figure 1 , a rapid prototyping method for continuous fiber-reinforced plastic automotive parts, comprising the steps of:

[0034] S1: Forming a silicone base mold 5: Forming a silicone base mold using a silicone resin thermosetting molding process. Specifically, coat the surface of the hard mold cavity with a release agent, heat it to a certain temperature, mix and inject the silicone resin and curing agent In the cavity of the hard mold, open the mold after curing is complete, take out the silicone bottom mold, and the thickness of the prepared silicone bottom mold is 5mm;

[0035] S2: Lay a continuous fiber layer in the cavity of the silicone bottom model 4: Wipe the surface of the silicone bottom model cavity clean, apply a release agent, and tightly fit the continuous fiber layer in the silicone bottom model cavity;

[0036] S3: Infiltrate the continuous fiber layer with resin under vacuum and low temperature conditions: Lay a covering layer on the surface...

Embodiment 2

[0043] refer to figure 1 , a rapid prototyping method for continuous fiber-reinforced plastic automotive parts, comprising the steps of:

[0044] S1: Forming a silicone base mold 5: Forming a silicone base mold using a silicone resin thermosetting molding process. Specifically, the surface of the hard mold cavity is coated with a release agent, heated to a certain temperature, and the silicone resin and curing agent are prepared and injected. In the cavity of the hard mold, open the mold after curing is complete, take out the silicone bottom mold, and the thickness of the prepared silicone bottom mold is 8mm;

[0045] S2: Laying a continuous fiber layer in the cavity of the silicone bottom model 4: Wipe the surface of the silicone bottom model cavity clean, apply a release agent, and tightly fit the continuous fiber layer in the silicone bottom model cavity;

[0046]S3: Infiltrate the continuous fiber layer with resin under vacuum and low temperature conditions: Lay a coverin...

Embodiment 3

[0053] refer to figure 1 , a rapid prototyping method for continuous fiber-reinforced plastic automotive parts, comprising the steps of:

[0054] S1: Forming a silicone base mold 5: Forming a silicone base mold using a silicone resin thermosetting molding process. Specifically, coat the surface of the hard mold cavity with a release agent, heat it to a certain temperature, mix and inject the silicone resin and curing agent In the cavity of the hard mold, open the mold after curing is complete, take out the silicone bottom mold, and the thickness of the prepared silicone bottom mold is 10mm;

[0055] S2: Laying a continuous fiber layer in the cavity of the silicone bottom model 4: Wipe the surface of the silicone bottom model cavity clean, apply a release agent, and tightly fit the continuous fiber layer in the silicone bottom model cavity;

[0056] S3: Infiltrate the continuous fiber layer with resin under vacuum and low temperature conditions: Lay a covering layer on the sur...

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Abstract

The invention discloses a rapid prototyping method for continuous fiber-reinforced plastic automobile parts, which comprises the following steps: S1: forming a silica gel bottom mold; S2: laying a continuous fiber layer in the cavity of the silica gel bottom mold; Resin-infiltrated continuous fiber layer; S4: high-temperature hot-press curing molded auto parts. By adopting the rapid prototyping method of the continuous fiber-reinforced plastic auto parts of the present application, the production cost is saved and the molding quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of continuous fiber-reinforced plastic molding, in particular to a rapid prototyping method for continuous fiber-reinforced plastic auto parts. Background technique [0002] Compared with short-fiber and long-fiber reinforced resins with discontinuous fiber bundles, continuous fiber-reinforced thermosetting resins have higher specific strength and specific modulus. When used in automobiles, they can greatly reduce the weight of the entire vehicle, so they are widely used in the field of auto parts. [0003] Auto parts are mass-produced products, and the conventional continuous fiber-reinforced resin production process is slow and cannot meet the needs of mass production of automobiles. At present, the rapid prototyping process of continuous fiber reinforced thermosetting resin parts includes high-pressure resin transfer molding process (HPRTM) and wet molding process (WCM). Pressure is used to ensure that t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/36B29C70/54
CPCB29C70/36B29C70/54
Inventor 李韶茂谢兰华李传经
Owner GAC MITSUBISHI MOTORS
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