Method and device for melting glass using an induction-heated crucible with cooled crust

A method for the rapid melting of high-purity, aggressive and/or high-melting glasses in a skull crucible, comprising:

• introducing high-frequency energy into the glasses in the skull crucible by a coil arrangement surrounding the skull crucible, in order to heat the glasses into molten glass;
• discharging the molten glass from an upper region of the skull crucible;
• and
• retaining undissolved constituents of the molten glass in the skull crucible by a cooled bridge which is immersed in the molten glass at the upper region, wherein the cooled bridge comprises an angular cross section.

A method for the rapid melting of high-purity, aggressive and/or high-melting glasses in a skull crucible, comprising:

• introducing high-frequency energy into the glasses in the skull crucible by a coil arrangement surrounding the skull crucible, in order to heat the glasses into molten glass;
• discharging the molten glass from an upper region of the skull crucible;
• and
• retaining undissolved constituents of the molten glass in the skull crucible by a cooled bridge having a curved cross section which is immersed in the molten glass.