An yi alumina mai launin ruwan kasa da aka haɗa da bauxite mai inganci a matsayin kayan ƙasa, anthracite da kuma ƙarfe. Ana yin sa ne ta hanyar narkewar arc a zafin 2000°C ko sama da haka. Ana niƙa shi kuma ana sanya shi a cikin filastik ta hanyar injin niƙa kai, an zaɓi shi ta hanyar maganadisu don cire ƙarfe, an tace shi cikin girma dabam-dabam, kuma yanayinsa yana da yawa kuma mai tauri. Ana iya amfani da ƙananan ƙwayoyin halitta masu tsayi, waɗanda suka dace da samar da yumbu, resin mai jure wa da niƙa, gogewa, yashi mai laushi, simintin daidai, da sauransu, don ƙera refractories masu inganci.
| Bayanin Girman Barbashi | ||||
| JIS | 240#,280#,320#,360#,400#,500#,600#,700#,800#,1000#,1200#,1500#,2000#,2500#,3000#,3500#, 4000#,6000#,8000#,10000#,12500# | |||
| Matsayin Turai | F240, F280, F320, F360, F400, F500, F600, F800, F1000, F1200, F1500, F2000, F2500, F3000, F4000, F6000 | |||
| Ma'aunin ƙasa | W63,W50,W40,W28,W20,W14,W10,W7,W5,W3.5,W2.5,W1.5,W1,W0.5 | |||
| Aikace-aikace | Ƙayyadewa | Babban sinadaran abun da ke ciki% | Maganin maganadisu% | ||||
| Al2o3 | Fe2o3 | Sio2 | Tio2 | ||||
| Masu gogewa | F | 4#-80# | ≥95 | ≤0.3 | ≤1.5 | ≤3.0 | ≤0.05 |
| 90#—150# | ≥94 | ≤0.03 | |||||
| 180#—240# | ≥93 | ≤0.3 | ≤1.5 | ≤3.5 | ≤0.02 | ||
| P | 8#—80# | ≥95.0 | ≤0.2 | ≤1.2 | ≤3.0 | ≤0.05 | |
| 100#—150# | ≥94.0 | ≤0.3 | ≤1.5 | ≤3.5 | ≤0.03 | ||
| 180#—220# | ≥93.0 | ≤0.5 | ≤1.8 | ≤4.0 | ≤0.02 | ||
| W | 1#-63# | ≥92.5 | ≤0.3 | ≤1.5 | ≤3.0 | ----------- | |
| Mai tsaurin kai | Duansha | 0-1mm 1-3mm 3-5mm 5-8mm 8-12mm | ≥95 | ≤0.3 | ≤1.5 | ≤3.0 | ----------- |
| 25-0mm 10-0mm 50-0mm 30-0mm | ≥95 | ≤0.3 | ≤1.5 | ≤3.0 | ----------- | ||
| Foda | 180#-0 200#-0 320#-0 | ≥94.5 ≥93.5 | ≤0.5 | ≤1.5 | ≤3.5 | ----------- | |
Idan kuna da wasu tambayoyi. Da fatan za ku iya tuntuɓar mu.