METHOD OF MAKING SPINNER DISCS FOR ROTARY FIBERIZATION PROCESSES

摘要

A method of making a spinner disc for a rotary fiberization process, such as but not limited to a glass fiberization process, includes: forming a spinner disc fr om an alloy that forms a protective oxide film on surfaces of the spinner disc exposed to the atmosphere; forming fiberizing holes in an annular peripheral sidewall of the spinner disc; and applying a plasma to a surface of the spinner disc to remove hydrocarbons and sulfurous compounds from the surface of the spinner disc which would otherwise reduce and/or react with and degra de the protective oxide film forming on the surface of the spinner disc when the spinner disc is exposed to the atmosphere. Preferably, the surface of the spinner disc is solvent cleaned subsequent to the formation of the fiberizing holes and prior to the application of the plasma ; preferably, the plasma used to plasma clean the spinner disc is a low temperature plasma of charged particles; and the spinner disc is heat treated subsequent to applying the plasma to th e surface of the spinner disc to form a strong continuous oxide film or films on the clean surface of the spinner disc and to strengthen the alloy.