A Quarzal termekek jellemzoi es viselkedese, avagy korszeru-e meg a slikkerontessel gyartott szilika az uvegiparban?

摘要

The slip-cast fused silica material Quarzal has been produced and used by SCHOTT for more than 30 years. Since 3 years Quarzal is marketed outside SCHOTT. Quarzal has a low glass defect potential both for solid defects and bubbles, as well as outstanding thermal shock resistance. It also shows excellent resistance to low-alkali glasses. The good solubility of Quarzal, which is nearly 100% SiO^sub 2^ does not occur any striaes in the glass products. The applied slip casting process allows the production of moldings like: feeder expendables (spout, tubes, plunger and orifice rings), tweel, flat arches, channel blocks, stirrers, burner blocks and of large components, which enable efficient furnace or forehearth designs. [PUBLICATION ABSTRACT]