Zvakanakira uye kuipa kweiyo fused chena simbi jade uye fused brown corundum:

Iyo corundum-based refractory raw material yakagadzirwa nefused corundum fused nzira ine yakakwira yealumina. Mbeu dzecorundum dzakakwana uye dzakaoma. Kugadzikana kwekemikari yepamusoro, yakakwirira-giredhi alumina kana yakakwira-alumina clinker inoshandiswa seyakabikwa kuti inyunguduke muarc Shanghai, bvisa izvo zvakasara, uye kutonhorera frit. Kune maviri makuru emhando dzefused brown corundum uye fused white corundum. Kana yakakwira alumina bauxite inoshandiswa kugadzira brown corundum, yakakwira alumina bauxite inoda kupiswa isati yaitwa electrofusion kuti ibvise adsorbed mvura uye zvimiro zvemvura mukati mayo kukurumidza kuita electrofusion uye kuderedza kushandiswa kwesimba. Kuti uderedze zvizere maitiro ekubatanidza uye kunyatsobvisa tsvina, zvakakosha kuwedzera chiyero chakakodzera cheanthracite uye iron powder kune zvigadzirwa. Apo alumina inobudisa white corundum, nekuda kwekuchena kwepamusoro kwezvinhu zvakasvibiswa, hapana chikonzero chekushandisa nzira dzekuderedza kuparadzanisa tsvina. Iyo alumina yemukati yakasanganiswa brown fused alumina yakakura kupfuura 90%, uye iyo alumina yemukati mechena yakasanganiswa alumina yakakura kupfuura 98%. Kuita kweiyo fused corundum kwakangofanana neiyo sintered alumina, asi imwe yakasanganiswa corundum ine yakakwirira inooneka porosity.