| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heating mechanism of a molten glass sending part, wherein the heating condition can be controlled so that the sending part has a temperature at which necessary viscosity of molten glass is retained, and the outside of the sending part is made to be in an oxidizing atmosphere, whereby the service life of the sending part is prolonged and energy consumption by heating is saved. Ž<P>SOLUTION: Disclosed is the heating mechanism of the molten glass sending part which heats the sending part which connects an upstream-side container and a downstream-side container of a glass melting apparatus and flows molten glass, and keeps the molten glass at a predetermined temperature. All of the upstream-side container, the downstream-side container and the sending part are formed of platinum or platinum alloy, the sending part has the shape of a tube or trough, and electrodes formed of the same material as the sending part are attached to an outer surface of the sending part in a state where the attached faces have two-dimensional or three-dimensional broadening. When the electrodes are electrified, the sending part itself generates heat and serves as a heater. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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