| Autor: |
Galdina, N., Shatova, N., Zaliznyak, D., Mel'nik, E., Firer, M. |
| Zdroj: |
Refractories; 1965, Vol. 6 Issue 3/4, p179-185, 7p |
| Abstrakt: |
Bakor-33 in the main is as good in its physicochemical and service properties as the Corhart-ZAC refractory. The use in the walls of a tank furnace of Bakor-33 and dense silica allowed us to raise the melting temperature from 1480 to 1505-1510°C, to improve the quality of the glass, to prolong the campaign from 22 to 27 months and to melt an extra 46,000 tons of glass or more. When high-temperature melting (above 1500°C) is used it is best to employ Soviet fusion-cast Bakor-33 for the upper course of the tank walls in the melting part if window and technical glass are being produced. It is undesirable to use Bakor-33 blocks in the pouring section inside the furnace. In view of the serious wear of firebrick with high-temperature melting it is recommended that the low-lying courses of the walls of the melting part be made of fused corundum refractory Bakor-20. The first five pairs of ports in the glass furnace should be made of Bakor-33 blocks and the other of silica. To obtain high-grade glass from high-temperature melting it is desirable to make the upper courses of the walls of the cooler and working parts in fused corundum or Bakor-20, and in the extreme case, of high-AlO blocks. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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