Refractory , molding methods and uses of the glass overflow forming blocks and refractory.

摘要

Refractories can include _Al 2 _{O 3} of at least 10wt%. Furthermore, good, or refractory may also include a dopant comprising a combination of any of these oxides or Ti, Mg, Ta, and Nb can also contain SiO ₂ of about 6wt% or less. In one embodiment, it is possible to provide 2 _{O 3} as a reactive _Al, and at least about 1% of _Al 2 _{O 3} refractory. In another embodiment, the refractory can have a combination of any of the foregoing density of about 3.55g / cc, or corrosion rate of 2.69mm / year less. It is possible in certain embodiments, using a refractory to form the Al-Si-Mg glass sheets. In one embodiment, the refractory may be formed by a method using a combination of any of these compounds or Ti, Mg, Ta, a Nb.