METHOD OF SOLID-PROPELLANT CHARGES ARMORING Russian patent published in 2017 - IPC C06B21/00 C06D5/06 F02K9/24 

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to production of armored solid propellant charges, which coating prevents reserved surfaces burning. Heat-resistant fuel charge armoring is performed in two stages. At first stage on fuel cartridge surface glue EL-20 is applied by brush based on epoxy resin of ED-20 grade and low-molecular polyamide L-20 as adhesive interlayer, on which from above glass fabric or coarse calico impregnated with glue EL-20 is applied in two layers. Drying with simultaneous polymerization at temperature of 20–25 °C for 24–25 h or at 50–70 °C for 3–5 hours. At second stage cartridge is placed in mold in form of metal shell and in gap between shell and cartridge glue EL-20 is poured, which polymerization is carried out similar to first stage.

EFFECT: method provides simple and safe method of armor application onto small-sized solid fuel charges.

1 cl, 3 dwg, 1 tbl, 5 ex