Method for melting highly pure, aggressive or high melting point glass in skull crucible involves heating melt with coil surrounding it, molten glass being poured off above coil and insoluble components retained by cooled bridge

摘要

Method for melting highly pure, aggressive or high melting point glass in a skull crucible (1) comprises heating the melt with a coil (1.3) surrounding it. The molten glass is poured off above the coil and insoluble components are retained in the crucible by a cooled bridge (2) which dips into the melt. An Independent claim is included for apparatus for carrying out the method with a glass outlet (1.5) in the crucible above the top of the coil.