FIELD: process engineering.
SUBSTANCE: invention relates to production of articles from composite materials, particular, parts of soli-propellant rocket engines nozzle blocks. Proposed method comprises arranging carcass of initial material on rigid tapered mandrel, impregnating said carcass with binder in hydroclave with elastic membrane, drying impregnated carcass outside of hydroclave and curing it in the same hydroclave. Carcass is cured in vacuum created in space between mandrel and elastic membrane. In curing, carcass is heated to 65-75°C at the rate of not over 10°C in hour and cured at said temperature for 3-3.5 h. Heated carcass is loaded by 27 kgf/cm2 to go heating to 155-170°C at the rate of not over 15°C/h, and cured at said temperature for 7 h. Then, carcass, is cooled down to release pressure. Note here that in two hours after cooling beginning vacuum is removed.
EFFECT: higher quality of finished products.
2 dwg
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