A method for forming a composite molded product of high silica fiber and carbon fiber
A high-silica fiber and molding method technology, which is applied in the field of composite molded products of aerospace composite materials, can solve problems such as unreasonable molding methods, achieve functional difference design to meet heat insulation and ablation performance, and avoid roughness , the effect of clear interface
Active Publication Date: 2021-02-12
北京玻钢院复合材料有限公司
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Problems solved by technology
[0004] The object of the present invention is to provide a molding method of composite molded products of high silica fiber and carbon fiber, to solve the problem of unreasonable molding methods of existing composite molded products of high silica fiber and carbon fiber
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Embodiment 1
[0040] see figure 1 , figure 2 , image 3 , Figure 4, a molding method of a composite molded product of high silica fiber and carbon fiber, comprising the following steps: a. Installing the carbon fiber phenolic upper template 9, the carbon fiber phenolic molding mandrel 6 and the carbon fiber phenolic molding female mold 10 sequentially from top to bottom In the first hot press, preheating and heat preservation; high silicon oxygen fiber phenolic upper template 7, high silicon oxygen fiber phenolic forming die connecting plate 4, high silicon oxygen fiber phenolic prefabricated part end face molding die 3, high silicon Oxygen fiber phenol formaldehyde forming mandrel 5 and high silica fiber phenol formaldehyde forming female mold 8 are installed in the second hot press successively from top to bottom, and preheating insulation; B, carbon fiber phenolic resin premix is preheated; Silica fiber phenolic resin premix is preheated; c, the carbon fiber phenolic resin premi...
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Abstract
The invention relates to the field of manufacturing composite molded products, in particular to a molding method of a composite molded product made of high silica fiber and carbon fiber. It includes the following steps: including the following steps: respectively installing molding molds in the first hot press and the second hot press; preheating the carbon fiber phenolic resin premix and the high silica fiber phenolic resin premix; making carbon fiber Phenolic resin and high-silica fiber phenolic resin preform; demoulding the carbon fiber phenolic resin preform; integrally curing the carbon fiber phenolic resin preform and the high-silica fiber phenolic resin preform to obtain high-silica fiber Composite molding with carbon fiber. The object of the present invention is to provide a molding method of a composite molded product of high silica fiber and carbon fiber, so as to solve the problem that the existing molding method of composite molded product of high silica fiber and carbon fiber is unreasonable.
Description
technical field [0001] The invention relates to the field of manufacturing composite molded products of aerospace composite materials, in particular to a molding method of composite molded products of high silica fiber and carbon fiber. Background technique [0002] Rocket engine components need to withstand the ablation and erosion of high temperature, high pressure and high velocity gas, and thermal protection components need to have ablation resistance and heat insulation performance. Carbon fiber reinforced phenolic composites have excellent ablation resistance and erosion resistance, but their thermal conductivity is large; high silica fiber reinforced phenolic composites have excellent thermal insulation properties, but their ablation resistance and erosion resistance are not as good as carbon fiber composites. The composite molded product prepared by layering the two materials at the same time has excellent heat insulation performance and good ablation performance, an...
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IPC IPC(8): B29C43/58B29C43/02B29C65/02
Inventor 张薇任亮张玉琛刑宽计晨辉许亚丰张伟
Owner 北京玻钢院复合材料有限公司