초록 ▼

The present invention relates to an electric blasting device using aluminum foil, the objective of which lies in providing an economical and safe electric blasting device. In line with this objective; a portion of the outer conductor of the cable is removed, and the aluminum foil is inserted therein

The present invention relates to an electric blasting device using aluminum foil, the objective of which lies in providing an economical and safe electric blasting device. In line with this objective; a portion of the outer conductor of the cable is removed, and the aluminum foil is inserted therein in order to electrically connect the inner and outer conductors. Between the aluminum foil and the inner conductor, water, an insulator, and a teflon tube are inserted. When pulse high-current is made to flow, the aluminum foil changes into the condition of plasma. The aluminum therefrom and water react to generate explosive power. The invention is economical in that it uses commercialized aluminum foil, in addition to having a short scattering distance of the fragments. It also allows a low-vibration blasting due to the short reaction time therein.

대표청구항 ▼

1. An electric blasting device, which comprises:(a) a coaxial cable comprising a coaxial inner conductor at the center, an outer conductor, and an insulator for insulating said outer and inner conductors; (b) aluminum foil; (c) a cable terminal which connects said coaxial cable and said aluminum foi

1. An electric blasting device, which comprises:(a) a coaxial cable comprising a coaxial inner conductor at the center, an outer conductor, and an insulator for insulating said outer and inner conductors; (b) aluminum foil; (c) a cable terminal which connects said coaxial cable and said aluminum foil: (d) a teflon tube which is inserted onto said inner conductor for preventing damage thereto; (e) an insulator for insulating said inner and outer conductors; (f) water, inserted between said aluminum foil and the teflon tube, at a location for enabling the water to react with the aluminum foil; and (g) said aluminum foil, after removing a certain portion of the outer conductor of said coaxial cable, to the extent necessary for blasting, which is inserted therein to electrically connect the outer conductor of said coaxial cable to the inner conductor, thereby attaching onto the cable terminal through a foil holder, said aluminum foil and the water being arranged to provide a reaction for generating explosive power.