Patent ID: 6039274
Filing Date: 2000-03-21
Classification: B02C

Abstract:
A method for crushing or smashing nonconductive materials by electric discharge impulse, comprising;setting parameters of an electric discharge circuit for supplying a discharge voltage to nonconductive materials such that P as expressed by the following equation is within a range of 0.02.ltoreq.P.ltoreq.1.0; ##EQU7## where said parameters of said electric discharge circuit comprise l which is a thickness of said nonconductive materials, U.sub.0 an impulse voltage applied to said nonconductive materials, .tau. which is a time constant, and A which is a spark constant which is proportional to a sum total of currents flowing when said impulse voltage is applied to said nonconducive materials and a resistance and is inversely proportional to said thickness l; andapplying said electric discharge impulse from said electric discharge circuit to said nonconductive materials.