| 摘要 |
FIELD: weapon and ammunition. ^ SUBSTANCE: cartridge case comprises protective coating, including zinc phosphate and polymer layers. Layers are serially applied onto case surface. Components of polymer layer are represented by mixture of water-soluble polyurethane or phenylsiloxane varnishes with polymethylsiloxane and copolymer of butadiene with sterol. ^ EFFECT: improved service life of cartridges and cases. ^ 2 cl, 2 dwg |
