METHOD OF PRODUCTION OF THE PROTECTIVE AND HARDENING LAYER IN THE SHELL OF THE ANTENNA BLISTER MADE OUT OF QUARTZ CERAMICS Russian patent published in 2005 - IPC

FIELD: aircraft industry; rocket industry; mechanical engineering and other industries; production of antenna blisters made out of quartz ceramics.

SUBSTANCE: the invention is pertaining to the aircraft and rocket equipment, in particular, to production of the antenna blisters for rockets and may find application in mechanical engineering and other branches of industry at production of items possessive a high strength in combination with radiotransparency in the whole range of temperatures of operation. The technical result of the invention is formation of a protective and hardening layer on the inner surface of the antenna blister, which possesses a sealing function, humidity resistance and a hardening effect. The method of production of the defensive and hardening layer in a shell of the antenna blister made out of quartz ceramics includes impregnation of then inner surface of the ceramic shell with an acetonic solution of a mixture of organosilicon and phenol-formaldehyde resins in the ratio of 1:2 accordingly, density of 0.940-0.980 g/cm³. The produced layer is dried at an indoor temperature within 3-6 hours, then polymerized at the temperature of 220-240°C within 4-6 hours. The impregnation conduct by a method of the communicating vessels in the closed volume or by the method of pouring over with water in the closed volume.

EFFECT: the invention ensures formation of a protective and hardening layer on the inner surface of the antenna blister, which possesses a sealing function, humidity resistance and a hardening effect.

3 cl, 6 ex