A kind of preparation method of tactical missile motor composite casing

Abstract

The invention discloses a method for preparing a composite casing of a tactical missile engine. The cloth tape used in the invention is a cloth tape cut at a 45° angle. 8000με, the minimum value is ≥6100με; the airbags used are silicone rubber airbags, and different airbag sizes can be designed according to the product size characteristics; the used airbags can be designed according to the wall thickness of different positions to achieve the sequence of pressurization positions at the beginning of pressurization; The pre-forming and pre-curing technology of the heat insulation layer is adopted, so that the assembly of the heat insulation layer can be carried out smoothly; the use of air bag pressurization technology solves the bonding technology of the heat insulation layer of the metal shell at both ends.

Description

technical field [0001] The invention relates to a method for preparing a functional part of a tactical missile, in particular to a method for preparing a composite shell of a tactical missile engine. Background technique [0002] The combustion chamber of a tactical missile engine is the main component of the engine, and it is required to withstand high internal pressure, high temperature resistance, gas erosion resistance, heat insulation and other properties. Usually, a metal shell is used as the load-bearing part, and the inner surface is covered with a thermal insulation layer, which has the properties of temperature resistance, gas erosion resistance, and heat insulation. The heat-insulating layer is usually a heat-resistant coating and ablation coating. The heat-resistant coating is metal oxide, carbide, etc., which are generally sprayed; the ablation coating is high-silica fiberglass, FX-501 thermosetting plastic, and phenolic modified rubber. Etc., generally adopts ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects in the above-mentioned prior art and application and provide a method for preparing the composite shell of the tactical missile engine, through the winding of the tape cloth tape--pre-curing molding, airbag pressure bonding-curing molding, It solves the problems of compounding at both ends and large strain insulation layer forming, and has wide adaptability in the forming process of heat insulation layer laying on inner walls of engine combustion chambers, etc.

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