Method of protecting the surface of the molten met

专利名称：Method of protecting the surface of the

molten metal in a glass flotation operation

发明人：LOUKES DAVID GORDON,ROBINSON

ALBERT SIDNEY

申请号：US30988463申请日：19630918公开号：US3356475A公开日：19671205

摘要：In a method of manufacturing flat glass during which the glass is supported onand travels over a bath of molten metal above which a plenum of protective atmosphereis maintained, there is provided on the surface of the molten bath not covered by theglass, at least at the outlet end of the bath, a layer of a particulate material which doesnot react with the molten metal or the glass. The particulate material may compriseflakes of graphite, or alumina, silica or kieselguhr, sodium or potassium chloride, or a highmelting point glass. When graphite is so employed it may be washed down through thebath with the glass and out of the tank, and needs, therefore, to be continually replaced.This is carried out through a special hatch which has a plenum of inert gas therein.

申请人：PILKINGTON BROTHERS LIMITED

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