METHOD TO MAKE EXPLOSIVE CHARGE Russian patent published in 2010 - IPC F42D1/02 F42D3/04 

FIELD: weapons.

SUBSTANCE: invention relates to mining, hydrotechnical construction and other industrial branches exploiting large-weight explosives and can be used in large-section drafts. Encased explosive is placed in casing from thermosetting film and explosive is compacted to preset density along with forcing excess air from aforesaid casings. Immediately after compaction, thermosetting film is heated by hot air. Casings with lower-density explosives are arranged on draft bottom, said casings having excess air not yet forced from casings. Then casing with explosives and air completely forced therefrom are placed on draft bottom. Charge upper part accommodates casing with explosive and air forced out as much as possible. Heating temperature is determined subject to properties of thermosetting film and requirements to explosive thermal safety and varies from 120°C to 200°C. In making the explosive charge, approximately equal density of explosive is ensured across entire charge, deviation from preset density not exceeding 10 to 15% depending upon external conditions.

EFFECT: higher quality.

3 cl, 2 dwg