Gịnị bụ nkewa nke brik na -agbanwe agbanwe?

Dị ka ihe mejupụtara ya si dị, e nwere ike kewaa ya ụzọ ise, ya bụ: brik na-eme ka silica-alumina refractory, brik alkaline, brik ndị nwere carbon, brik ndị nwere zirconium, na brik na-ekpo ọkụ na-ekpo ọkụ.

Dị ka uru PH si dị, enwere ike kewaa ya

(1) The acidic refractories bụ tumadi mejupụtara silica, nke a na-ejikarị na silica brik na ụrọ brik.

(2) Ntugharị na-anọpụ iche na-abụkarị nke alumina, chromium oxide ma ọ bụ carbon;

(3) A na-ejikarị magnesium oxide na calcium oxide mejupụtara alkaline, na brik magnesia na-ejikarị.