Method of cleaning vulcanizing mold

摘要

A method of cleaning a vulcanizing mold (10) including the steps of providing, independently from a vacuum processing bath (1), a furnace (18) for generating a plasma flow mainly containing neutral active species by a microwave discharge applied for a reactive gas; introducing the plasma flow in the processing bath (1) and jetting it to the entire residue adhering surface of the mold (10) positioned in the processing bath; and ashing residues by the jetted plasma gas. With this method, uniform ashing can be performed for residues adhering on the surface of a vulcanizing mold, without any adverse effect exerted on the mold. <IMAGE>