Liquid phase impregnation tool for preparing C/C composite material and charging method

Abstract

The invention relates to the field of C / C composite materials, in particular to a liquid phase impregnation tool for preparing a C / C composite material. The tool comprises a dipping barrel, a dipping material frame and gaskets, wherein the dipping barrel is used for being placed into a stainless steel barrel in a pressure dipping furnace; the dipping material frame consists of a chassis with holes, a stand column and a top lifting hook, and is arranged in the dipping barrel; and the gaskets are used for separating each layer of blank. The tool and the gaskets are made of stainless steel materials. According to the tool, C / C composite material blank liquid-phase impregnation loading is carried out, so that the problems that a food steamer type impregnation material rack is small in charging amount and uses a large amount of impregnant are solved; and multiple layers of blanks which are stacked on a common material rack are adhered together after being impregnated. The production capacity of a single furnace is improved, so that the working efficiency is improved.

Description

Technical field [0001] The present invention relates to the field of C / C composites, tooling and particularly relates to a method of preparing a furnace apparatus C / C composite impregnated with a liquid phase. Background technique [0002] C / C composite material is used as the only high temperature above 2800 deg.] C structural materials can be used, in the nose cone cap space shuttle, rocket engines and the like Throat widely used. In the preparation process, the development of a liquid impregnation / carbonization process, hot isostatic pressing, CVI process or the like, manufacturing costs are reduced, a great force application and composites C / C. [0003] Immersed in the liquid phase generally furnace for pressure impregnation, impregnating agent depending on, there are two main methods impregnated with a resin impregnated with bitumen. Wherein the resin used bran ketone resin, furfural resin, phenol resin; high temperature coal tar pitch, coal tar pitch and the like ...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a tool for preparing liquid-phase impregnation of C / C composite materials to solve the problem that only blanks lower than the height of the interlayer can be placed in a single layer of the "steamer" impregnation rack, resulting in the impregnation dose required each time The problem of too many and less furnace loading; at the same time, when placing multi-layer blanks in ordinary impregnation racks, they will stick together after impregnation

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