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Composite components curing process and composite parts

A composite material component and curing process technology, applied in the field of materials, can solve the problems of high manufacturing cost, high requirements for curing pressure uniformity, and dangerous use.

Active Publication Date: 2020-12-22
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this process still has practical engineering problems such as high manufacturing cost, dangerous use, high energy consumption, and high curing pressure and uniformity requirements, which make molding and manufacturing difficult.

Method used

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  • Composite components curing process and composite parts
  • Composite components curing process and composite parts
  • Composite components curing process and composite parts

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Experimental program
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Effect test

Embodiment Construction

[0025] The invention provides a composite material component curing process, which comprises the following steps:

[0026] 1) Heat and heat-preserve the composite material parts to be processed in the vibration experiment platform, wherein the heating and heat preservation treatment is to heat the composite material parts to be processed in the vibration experiment platform at a heating rate of 1.5°C / min from 30 ℃ heating to 80 ℃, heat preservation 30min; heating and heat preservation using nickel-chromium alloy heating wire heater for heating or heat preservation; the vibration frequency range of the vibration experiment platform is 10HZ-2000HZ; the temperature range of the vibration experiment platform is -70℃-200℃; vibration The vibration acceleration of the experimental platform is not greater than 50g, g=9.8m / s.

[0027] 2) In the process of heating and heat preservation, provide vibration to the composite material parts to be processed through the vibration experiment pl...

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Abstract

The invention belongs to the field of materials, and relates to a composite component curing process and a composite workpiece. The composite component curing process comprises the following steps that (1) the to-be-processed composite workpiece is heated and subjected to heat preservation in a vibration experimental platform; (2) in the heating and heat preservation processes, the to-be-processedcomposite workpiece is vibrated through the vibration experimental platform; (3) after vibration is finished, the low pressure is applied to the to-be-processed composite workpiece through the vibration experimental platform; and (4) in the process of applying the low pressure, the to-be-processed composite workpiece is subjected to secondary temperature rise, and subsequent curing of the to-be-processed composite workpiece is completed. According to the composite component curing process, under the low curing pressure, the porosity of the composite workpiece can be significantly decreased, the performance of the composite workpiece can be significantly improved, and safe, efficient and energy-saving forming curing of the large composite workpiece can be achieved.

Description

technical field [0001] The invention belongs to the field of materials, and relates to a composite material component curing process and a composite material part, in particular to a composite material component curing process under vibration pretreatment and low-pressure environment and a composite material part prepared based on the curing process . Background technique [0002] Composite parts are widely used in aerospace and other high-tech fields due to their many advantages, but the existence of pores will seriously affect the safety and reliability of composite parts in actual engineering. Therefore, aviation standards require that the porosity of composite parts be less than 1%, and other industries require porosity to be less than 5%. At present, the way to reduce the porosity of composite parts is mainly to use the autoclave high-pressure process to complete the molding of low-porosity composite parts in a high-pressure environment. However, this process still ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/30B29C70/54
CPCB29C70/30B29C70/54
Inventor 湛利华杨晓波胡健蒋成标关成龙
Owner CENT SOUTH UNIV
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