METHOD OF MANUFACTURE OF PYROTECHNICAL CHARGES Russian patent published in 2015 - IPC C06B21/00 

FIELD: demolition works.

SUBSTANCE: method of manufacture of pyrotechnical charges comprises the heating of powder mix up to the temperature of plasticization of polymeric binder, formation from the prepared composition of the cord by through-feed pressing through the calibrated die, temperature conditioning and the cord cutting into measured pyroelements. From the powder mix portion a tablet is pre-formed by compaction with the upsetting coefficient 3-4, and the heating is conducted up to the temperature 0.4-0.6 of the polymeric binder melting temperature at which the mix is conditioned in the thermostat during 35±5 minutes then the cord is formed.

EFFECT: solution provides high reliability of ignition of piece pyroelements for bulk functional charge and their stable burning, at improvement of producibility of manufacture and shortening the production cycle time.

2 dwg