Njerwa ya alumina ya magnesite ndi mtundu wa chinthu chopanda mphamvu cha alkaline chokhala ndi perriclase ngati gawo lalikulu la magnesia alumina spinel clinker ngati zinthu zoyambira. Njerwa ya alumina ya magnesia ili ndi makhalidwe monga kugwedezeka kwa kutentha, mphamvu yabwino komanso kukhazikika kwa voliyumu kutentha kwambiri. Njerwa ya alumina yopanda mphamvu ya magnesia ili ndi kukana kutentha bwino, kukana kwambiri pansi pa katundu, kutentha kofewa kwa katundu pamwamba pa 1580 ℃, kukana kukokoloka kwa galasi ndi kwabwino. Ingagwiritsidwe ntchito m'mapulojekiti ambiri a simenti amkati ndi kunja.
Magnesia alumina firebrick imagwiritsa ntchito magnesia alumina spinel ngati matrix. Pofuna kulimbitsa kukana kutentha kwa njerwa za magnesia, ufa wosalala wa alumina kapena bauxite clinker umayikidwa mu batching kuti upange magnesia alumina spinel matrix. Magnesia alumina firebrick imakhala ndi kukana kutentha kwabwino, kukana kwambiri pamene ikunyamula katundu, kutentha kofewa kwa katundu pamwamba pa 1580 ℃, komanso kukana kukokoloka kwa galasi.
Njerwa ya Magnesium alumina ndi mtundu wa njerwa ya spinel yomwe ili ndi pafupifupi 85% MgO ndi 5% ~ 10% Al2O3. Gawo la kristalo la njerwa ya magnesium alumina limapangidwa makamaka ndi miyala ya magnesia ndi spinel ya magnesia alumina. Mizere ya spinel imasonkhana pambuyo pa crystallization kuti ipange netiweki ya kristalo, zomwe zimapangitsa kuti kapangidwe kake kakhale kakang'ono. Chifukwa popanga, musagwiritse ntchito granule yochuluka, kapangidwe ka njerwa yonse ndi kofanana, stoma imafalikira.
1. Pa ma pallet amatabwa okhala ndi chivundikiro cha pulasitiki: kukula kwa pallet yamatabwa: 930*930 kapena 1000*1000mm,
2. Kulemera kwa phaleti iliyonse: matani 1.5-2.0,
3.230*114*65mm:512PCS/Pallet, 230*114*75mm:448PCS/Pallet.
| CHINTHU | Njerwa ya Magnesia alumina | Njerwa ya alumina ya magnesia yapakatikati | Njerwa ya alumina ya magnesia yoyera kwambiri | Njerwa ya spinel ya Magnesia alumina | ||
| MgO % | 80 | 80 | 85-90 | ≥90 | ≥85 | 80-90 |
| Al2O3% | 5-10 | 5-10 | 6-8 | 4-8 | 4-8 | 9-18 |
| Kuoneka ngati Porosity % | 18 | 19 | 18 | 18 | 18 | 16-20 |
| Mphamvu Yopondereza Yozizira Mpa | 40 | 30 | 50 | 50 | 50 | 40-50 |
| 0.2Mpa Kusagwira Ntchito Kwambiri T0.6 | 1600 | 1580 | 1650 | 1680 | 1630 | 1620 |
| Kukana kutentha kwa kutentha | 4 | 4 | 5 | 8 | 8 | 10 |
Magnesia alumina block yokhala ndi magwiridwe antchito abwino kwambiri, zinthu zathu zakhala zikugwiritsidwa ntchito kwambiri m'mapulojekiti a simenti am'deralo ndi akunja. Komanso ma magnesia alumina blocks angagwiritsidwe ntchito m'malo osinthira a simenti rotary kilns, regenerators agalasi ndi ma laimu kilns.
Fakitale ya RS Refractory ndi kampani yaukadaulo yogulitsa njerwa za alumina ya magnesite yomwe idakhazikitsidwa kumayambiriro kwa zaka za m'ma 90. Fakitale ya RS Refractory yakhala ikugwira ntchito yopangira njerwa za alumina za magnesite kwa zaka zoposa 20. Ngati mukufuna magnesite alumina block, kapena muli ndi mafunso okhudza magnesite alumina firebrick yokhudza zizindikiro zakuthupi ndi zamankhwala, chonde titumizireni kwaulere. Ndipo fakitale ya Rs Refractory monga katswiri wopanga njerwa za alumina ku China, ili ndi zabwino zina zopikisana nazo motere: