Patent ID: 6339610
Filing Date: 2002-01-15
Classification: C03B

Abstract:
A glass melting tank for containing a glass melt, comprising at least one pair of heating electrodes projecting into the glass melt, wherein the glass melting tank has, at least in the area of the glass melt, a narrowed symmetric cross-sectional area formed by an inward arching of surfaces of the glass melting tank, wherein the narrowed cross-sectional area has a length which is up to 15% of the overall length of the glass melting tank, and wherein the glass melting tank has at least one heating electrode in front of and one corresponding heating electrode behind the narrowed cross-sectional area to achieve an increase in the temperature of the glass melt in the narrowed cross-sectional area, the temperature of the glass melt in the narrowed cross-sectional area being adjustable and controllable through the heating electrode in front of and the corresponding heating electrode behind the narrowed cross-sectional area.