Patent ID: 8904938

Claim:
A blasting cartridge to be used in a blasting apparatus that blasts an object, comprising: a single self-reactive blasting substance consisting essentially of nitromethane; a container that contains said blasting substance; a tungsten wire disposed within said blasting substance, said tungsten wire having a length greater than or equal to 10 mm and less than or equal to 120 mm and a cross-sectional area greater than or equal to 0.03 mm 2 and less than or equal to 0.13 mm 2 , said tungsten wire being configured to reach the evaporation temperature of tungsten by application of an applied voltage which is greater than or equal to 1500 V and less than or equal to 3000 V to thereby detonate said nitromethane; and a pair of leadwires whose one ends are connected to both ends of said tungsten wire and whose other ends are connected to a power supply device outside said container.