A kind of tooling and method for deposition calibration of ceramic matrix composite material parts

Abstract

The invention relates to a ceramic matrix composite material part deposition correction tooling and method to solve the problem of high temperature deformation of the ceramic matrix composite material part prefabricated body when it is demoulded and continues to deposit, and the traditional calibration method is difficult to ensure the appearance of the part Accurate, it will also affect the problem of deposition effect. The tooling includes a calibration plate of ceramic matrix composite material, and a calibration groove is arranged on the calibration plate, the shape of the calibration groove matches the cross-sectional profile of the part to be calibrated, and its width h is wider than the wall thickness of the part to be calibrated 1‑3mm; the inner wall of the calibration groove is serrated, and the serrations on the inner walls on opposite sides are staggered, and the width of the serrated end face is greater than the distance between two adjacent serrated end faces. The calibration method includes: 1) taking at least one calibration plate of ceramic matrix composite material, and processing a calibration groove on the calibration plate according to the cross-sectional profile of the part to be calibrated; 2) putting the part to be calibrated into the calibration groove 3) Carry out CVI deposition on the part to be calibrated with a sizing plate, and perform sizing at the same time.

Description

technical field [0001] The invention relates to the field of preparation of ceramic matrix composite material parts, in particular to a ceramic matrix composite material part deposition correction tool and method. Background technique [0002] Ceramic matrix composite material is a new thermal structure / function integrated material with the advantages of metal materials, ceramic materials and carbon materials. It has high temperature resistance, low density, high specific strength, high specific modulus, oxidation resistance and ablation resistance. , Insensitivity to cracks, no catastrophic damage and other characteristics, it has a wide range of applications in machinery, aerospace, nuclear, energy and other fields. Ceramic matrix composite products are all assembled by individual parts with different shapes, so the preparation process of parts is particularly important for the assembly of final products. [0003] The preparation of ceramic matrix composite parts must go ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the high-temperature deformation of the ceramic matrix composite part prefabricated body existing in the prior art when it continues to deposit after demoulding, but the traditional calibration method is difficult to ensure the accurate appearance of the part, and will affect the deposition effect problem, and provides a ceramic matrix composite parts deposition calibration tooling and method

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