DEVICE FOR FORMATION OF BLAST WAVE IN EXPLOSIVE CHARGE Russian patent published in 2014 - IPC F42B3/10 

FIELD: blasting operations.

SUBSTANCE: formation device of blast wave in an explosive charge relates to blasting operations. The device includes the primary explosive charge and a matrix with detonation interconnections. The matrix represents channels filled with an explosive and having a common inlet section; sections located along the matrix surface and end sections located at an angle to the matrix surface. Sections located along the matrix surface have a cross section in the form of an isosceles trapezoid, the smaller base of which is directed to the side of the main explosive charge. Trapezoid inner angle α between the larger base and the lateral side is chosen based on the following: arctg l/t ≤ α ≤ arctg l/t_cr, where l - distance between the channels located along the matrix surface and end sections; t - matrix thickness; t_cr - critical thickness of explosive channels.

EFFECT: achieving improvement of stable activation of detonation interconnection elements.

2 dwg