| 摘要 |
<p>A magnesite-spinel refractory product and a method for making the refractory product is disclosed. The product includes from about 60 to 93 wt.% coarse deadburned magnesite, 5 to 30 wt.% preformed coarse spinel, or a sufficient amount of an alumina material to form in situ about 5 to about 30 wt.% of coarse spinel, and from about 2 to about 10 wt.% of a fine calcined alumina. The refractory product is pressed to form a shape and fired at temperatures suitable to form a refractory.</p> |
