METHOD OF ANTI-CORROSIVE COATING APPLICATION ON THE DETONATING EXTENDED CHARGE Russian patent published in 2017 - IPC F42B3/28 F42B1/32 C23C16/16 C23C16/455 

FIELD: blasting.

SUBSTANCE: method of applying the anti-corrosive coating on the detonating elongated charge metal shell contains the thermostating of the elongated detonating charge disposed in the working chamber and its depositing on the metal surface by decomposition of the initial metal compound of carbonyl group vapour in the gas-carrier flow. The thermostating is carried out at the temperature of 80-85°C during 3-5 minutes. The metal carbonyl is used as the initial metal compounds of the carbonyl group, the acoustic stiffness of which is greater or not less than the stiffness of the detonating elongated charge shell metal, and the hydrogen sulfide is used as the gas-carrier. The metal carbonyl vapour and hydrogen sulphide are supplied simultaneously at the rate of 1.0-1.5 g/h and 0.1-0.2 g/h, respectively, at the residual pressure in the working chamber of 10^-1-10 Pa.

EFFECT: increasing of gas, vapour, water resistance of the protective coating, its adhesion with the metal shell of the detonating elongated charge, increasing the productivity of work, the expansion of functionality and the application scope of corrosion resistant, protective coating.