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摘要

A forehearth for a glass furnace includes a roof formed of a plurality of roof blocks designed to provide below the roof blocks a central longitudinal channel and side channels on each side of the central channel. An electric heating element is positioned in a bore in the roof blocks substantially directly above the side channels to permit radiation of heat to the glass surface above the side channels. The temperature of the molten glass utilizing the construction can be effectively uniformly controlled across its cross-section.