PLASMA BREAKER AND BREAKING METHOD USING IT

摘要

PROBLEM TO BE SOLVED: To provide a plasma breaking method and a plasma breaker capable of reducing energy loss due to reflected stock waves and breakage in a breakage electrode. SOLUTION: By arranging an inserting material 41 inside a hole (prepared hole) 31 previously provided in a breaking object 30, the inside of the hole 31 is formed into a desired internal shape. In this way, the advancing direction of a shock wave generated from the tip of the breakage electrode 11 is controlled. As to the internal shape, a conical shape projecting toward the depth of the hole 31 is desirable.