| 摘要 |
This glass treatment device has molten glass flow therethrough and processes said molten glass, the inner wall thereof at least partially comprising a material containing a platinum-group metal, and is constituted in such a manner that a gas-phase space is formed in the interior by the surface of the molten glass and the inner wall. The gas-phase space is formed along the direction of flow of the molten glass. When processing the molten glass, on the wall of the gas-phase space, a temperature gradient region having a temperature gradient along the upstream or downstream direction of the flow of molten glass from the high-temperature region of the wall is formed by heating and/or radiating heat from the glass processing device. In order to enable the minimization of agglomeration of volatilized platinum-group metals present in the gas-phase space, the temperature difference between the minimum and maximum temperature in the temperature gradient region is maintained so as not to exceed 150℃. |
