| 摘要 |
PURPOSE: To provide a structure for cartridge of metal expansion cell for rock destruction, wherein an electric discharge wire is formed in the middle of the case, and a pressure pipe is formed on an inner part of a section of the case on which the electric discharge wire is mounted such that plasma channel generated by high current impressed from the electric discharge wire reaches up to the metal expansion cell. CONSTITUTION: In a structure for cartridge of metal expansion cell for rock destruction, the structure constructed in such a way that a metal expansion cell formed of a mixture of metal salts, metal powders and metal oxides is contained in a case(31), an initiating wire(44) for electric discharging high current to the metal expansion cell contained in the case is fixed to fixing terminals(41,42) diagonally inside the case, and high current supplied from a power supply part is inputted into both ends of the initiating wire through an electric wire, the structure for cartridge(30) of metal expansion cell for rock destruction is characterized in that a pressure pipe(35) formed of a high strength material durable to pressure is additionally formed on the inner wall of a section of the case in which the initiating wire is installed so that plasma channel generated from the initiating wire is guided to the lower side of the case by delay that the case in a section adjacent to the initiating wire is first broken by high heat and shock wave energy when high current is impressed to the initiating wire.
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