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Microwave curing method and device for composite shaft parts

A technology for shaft parts and composite materials, which is applied in the microwave curing of shaft parts made of composite materials, and in the field of solidification of shaft parts made of composite materials, can solve the problems of deformation forming cycle, poor consistency, high energy consumption, etc., and achieve the improvement of interface bonding force , Fast heating speed and low energy consumption

Active Publication Date: 2016-08-31
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to invent a composite material shaft part based on microwave heating technology in order to solve the problems of poor consistency, serious deformation, long forming cycle and high energy consumption of the existing shaft parts when they are solidified and formed in an autoclave. microwave curing method, and provide a corresponding curing device

Method used

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  • Microwave curing method and device for composite shaft parts

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Embodiment 1

[0028] A microwave curing method for shaft parts made of composite materials. First, the uncured Shuangma resin-based composite material is laid on the surface of a smooth mandrel coated with a release agent to form a shaft part to be cured, and then the to-be-cured The shaft parts are set in a vacuum bag, and the two ends of the vacuum bag are sealed with high temperature resistant tape, and then vacuumed to compact the shaft parts to be cured. After vacuuming and standing still for at least 30 minutes without air leakage Microwave curing oven heating and curing. Then put the compacted shaft parts to be cured together with the mandrel into the microwave curing oven, set the heating parameters of the microwave curing oven according to the composite material heating process, raise the temperature to 180°C at 5°C / min, and keep it warm for 150 minutes. Heating and curing composite shaft parts; after the final heat preservation period is over, the shaft parts are directly removed ...

Embodiment 2

[0032] Such as figure 1 , 2 shown.

[0033] A microwave curing device for composite material shaft parts, which includes a microwave curing oven 1, a mandrel 6 and a vacuum device, the mandrel is in the shape of a constant diameter or a stepped structure, and the formed shaft parts are correspondingly equal diameter or a structure with multiple shoulders, the two ends of the mandrel 6 are supported on the supporting device 7 in the microwave curing furnace 1, and the position where the composite shaft parts 4 are formed on the mandrel 6 is coated with There is a release agent layer 13, a release cloth 12 is installed on the surface of the composite shaft parts 4, a porous isolation film 11 is provided on the surface of the release cloth 12, and a ventilating film 11 is provided on the surface of the porous isolation film 11. Felt 10, vacuum bag 9 suits on air felt 10, as figure 2 As shown, the two ends of the vacuum bag 9 are fixed on the mandrel 6 by high temperature adhe...

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Abstract

The invention relates to a microwave curing method and a microwave curing device of a composite shaft part. The method is characterized by comprising the following steps: firstly, laying uncured composite materials on the surface of a smooth mandrel coated with a release agent, so as to form a to-be-cured shaft part, then arranging the to-be-cured shaft part in a vacuum bag in a sleeving manner, sealing both ends of the vacuum bag by high temperature resistant adhesive tapes, then vacuumizing the vacuum bag, so as to compact the to-be-cured shaft part, then putting the compacted to-be-cured shaft part and the mandrel into a microwave curing oven, setting heating parameters of the microwave curing oven according to a composite material heating process, and heating and curing the composite shaft part; after the final heat preservation time is finished, directly moving the shaft part out of the curing oven and cooling in the outdoor environment. The microwave curing method has the advantages of short heating and curing time, low energy consumption, good temperature uniformity and easiness in control.

Description

technical field [0001] The invention relates to a composite material curing technology, in particular to a composite material shaft part curing technology, in particular to a microwave curing method and device for composite material shaft parts based on microwave heating technology. Background technique [0002] Fiber-reinforced resin matrix composites have many advantages such as high specific strength and specific stiffness, light weight, corrosion resistance, fatigue resistance and vibration damping, and have been widely used in the industrial field. The use of fiber-reinforced resin-based composite materials to manufacture shaft parts can reduce the weight of the overall structure, reduce maintenance costs, reduce vibration and noise, and increase the critical speed of shaft parts. [0003] In the traditional forming process, the autoclave forming process is mostly used for composite shaft parts. However, there are problems such as low interlayer shear strength, severe ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/44
CPCB29C70/44B29C2035/0855
Inventor 李迎光李楠垭周靖杭翔吴晓春
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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