METHOD AND APPARATUS FOR CLEANING VULCANIZING MOLD

摘要

PROBLEM TO BE SOLVED: To provide a method and apparatus for cleaning a vulcanizing mold by removing the residue comprising a plastic material formed on the vulcanizing mold repeatedly used in the vulcanizing molding of a plastic product or the like. SOLUTION: An electrode 21 provided with air orifices communicating with jet orifices is arranged to the outer surface of a shower pipe and voltage is applied across the electrode 21 and a vulcanizing mold 10 to form a high frequency plasma region between the electrode and the mold and a reactive gas plasma is allowed to act on the vulcanizing mold 10 through the plasma region. The reactive gas plasma is ejected to the inner surface of the vulcanizing mold arranged in a vacuum treatment tank 1 from a large number of the jet orifices of the shower pipe to be allowed to act on the vulcanizing mold 10 to remove the elastomer residue on the surface of the mold by ashing.