METHOD OF PRODUCING MISSILE ENGINE CASING OUT OF POLYMER COMPOSITES WITH GAS DUCT AND MISSILE ENGINE CASING OUT OF POLYMER COMPOSITES WITH GAS DUCT Russian patent published in 2016 - IPC F02K9/32 

FIELD: machine building.

SUBSTANCE: missile engine casing out of polymer composites with a gas duct contains a thermal erosion-proof coating and a pressure shell. The thermal erosion-proof coating of the gas duct is made out of heat-resistant rubber reinforced by layers of spiral tape turns out of fabric with the skew location of the heat-resistant fibres of the warp and weft. The tape width is 0.5-1.0 of the gas duct ID, and the tape winding pitch is 0.30-0.35 of the tape width. During the missile engine casing manufacturing on a metal mandrel the thermal erosion-proof coating and pressure shell are formed. For the deformation of the thermal erosion-proof coating of the gas duct a fabric out of heat-resistant fibres with a plate out of heat-resistant unvulcanised rubber is duplicated, the tapes with the skew location of fibres of the warp and weft are cut out, and layers of the spiral tape turns are wound.

EFFECT: group of inventions increases the reliability and manufacturability of the missile engine casing.

8 cl, 5 dwg