METHOD OF MAKING ARTICLES FROM COMPOSITE MATERIALS Russian patent published in 2011 - IPC B29C43/30 B29C70/44 B29D22/00 

FIELD: chemistry.

SUBSTANCE: invention relates to the technology of making articles from composite materials, specifically components for basic structures, for example socket ends of nozzles of solid-propellant rocket engine (SPRE). The process of making articles from composite materials involves placing a frame of the initial material into a hollow shaping workholder with a blind bottom, saturating the frame with binder in a hydroclave with an elastic diaphragm and drying the saturated frame. A bundle of rubber cords is placed at the bottom of the workholder from the outside, one of which is put between the workholder and the frame, while the others are placed on its outer surface. The workholder is then put into an elastic diaphragm which is partially filled with binder. The frame is saturated, after which the workholder is removed from the hydroclave and the frame is dried. The rubber cords are removed before drying. The disclosed method is used to make several high-quality large-size socket ends of nozzles of SPRE, wherein preparation results of taken specimens show an almost uniform structure of the material of components, which indicates high quality of saturating the initial binding material.

EFFECT: when making large-size bushings of nozzles of SPRE, the invention ensures high quality of making components from composite materials while providing the required produceability.

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