Zomwe ndizofunikira njerwa zaumbali?

1. Magnesia carbon refractory njerwa mndandanda: Malinga ndi mikhalidwe ntchito, akhoza kugawidwa mu ambiri mkulu-mphamvu, mkulu-carbon ndi mitundu ina. Amagwiritsidwa ntchito kwambiri posinthira kumtunda ndi pansi kuphatikiza zosinthira zowomba komanso ng’anjo zamagetsi zamphamvu kwambiri.

2. Magnesia-calcium carbon series: Ikhoza kugawidwa mu njerwa za dolomite refractory phula, phula lophatikizana ndi njerwa za carbon dolomite ndi njerwa za carbon magnesia-dolomite, zomwe zimagwiritsidwa ntchito makamaka potembenuza otembenuza.

3. Magnesium chromium refractory njerwa mndandanda: akhoza kugawidwa mu general magnesia chromium refractory njerwa, otsika pakachitsulo ndi mkulu katundu zofewa magnesia chromium refractory njerwa. Amagwiritsidwa ntchito makamaka m’makina akuluakulu ozungulira ndi kuyenga ng’anjo kunja kwa ng’anjo.

4. Magnesia-aluminium refractory njerwa mndandanda: Iwo akhoza kugawidwa mu ambiri maginito zotayidwa refractory njerwa ndi sing’anga kalasi magnesia-zotayidwa njerwa (pogwiritsa ntchito maginito munali za 95% MgO), amene makamaka ntchito poyera pamoto nsonga.