Patent ID: 6372950
Filing Date: 2002-04-16
Classification: C03B,C03C,G21F

Abstract:
A radiation protector treating method, for use with an electric melting furnace having electrodes, comprising the steps of:first, pulverizing a used radiation protector to obtain a pulverized radiation protector material and mixing the pulverized radiation protector material with boron powder and bismuth powder; then casting said pulverized radiation protector material mixed with said boron powder and bismuth powder into an electric melting furnace having electrodes and also casting a selected amount of silicon powder, lead oxide powder and carbon powder into the electric melting furnace; and then melting the material cast in said electric melting furnace to form a glassy melt; wherein said carbon powder amount is selected for adjusting electric current between electrodes so as to control the temperature of the glassy melt.