| 1) complete conversion of the quartz, the true specific gravity is low (2.34 or less), a low content of residual silica (1%) when using a small volume change.?
2) low porosity, bulk density, high strength, good wear resistance.?
3) high purity, load softening point temperature> 1650 ℃, high temperature deformation.?
4) good resistance to high temperature creep properties?
5) low thermal expansion, high temperature volume stability.?
6) quality indicators of stability, appearance neat, precise size. |
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