I-alumina emdaka exutywe ne-brown yenziwe nge-bauxite ekumgangatho ophezulu njengezinto zokwenza i-raw, i-anthracite kunye nee-iron filings. Yenziwa ngokunyibilikisa i-arc kwi-2000°C okanye kubushushu obuphezulu. Iyatyunyuzwa kwaye yenziwe iplastiki ngomatshini ozigaya ngokwawo, ikhethwe ngemagnethi ukususa i-iron, ihluzwe ngobukhulu obahlukeneyo, kwaye ubume bayo buqinile kwaye buqinile.
Iimpawu zeKhemikhali nezeMvelo | ||||||
| Izinto | I-Al2O3 | I-Fe2O3 | I-SiO2 | Unizi lolwapho kuyiwa khona | Umbala | Isicelo |
| Ibanga loku-1 | ≥95 | ≤0.3 | ≤1.5 | 3.85 | Umbala oluhlaza okwesibhakabhaka | Izinto ezirhabaxa, |
| Ibanga lesi-II | ≥95 | ≤0.3 | ≤1.5 | 3.85 | Isuntswana elimnyama | ukupolisha kakuhle |
| Ibanga lesi-3 | ≥95 | ≤0.3 | ≤1.5 | 3.85 | Umgubo ongwevu | Ukupolisha, ukugaya |
| Ibanga lesi-IV | ≥95 | ≤0.3 | ≤1.5 | 3.85 | Isuntswana elimnyama | Ukusila, ukusika, ukuqhumisa isanti |
| Ibanga V | ≥95 | ≤0.3 | ≤1.5 | 3.85 | Umgubo ongwevu | Ukupolisha, ukugaya |
1. I-alumina emdaka exutywe kakuhle ifanelekile ekwenzeni izixhobo ze-abrasive ezibotshelelwe kwi-ceramic kunye ne-resin, ezisetyenziselwa ukugaya iintsimbi ezinamandla aphezulu, njenge-carbon steel, i-alloy steel, i-malleable cast-iron kunye ne-hard bronze njl.njl.
2. Isetyenziswa kakhulu njengokulungisa umphezulu, ukurhawuzelela, ukucoca, ukupolisha iintlobo ngeentlobo zeentsimbi, iglasi, irabha, kunye nemizi-mveliso yokubumba.
3. Ingasetyenziswa njengezinto ezichasayo.
Ukuba unemibuzo. Nceda uzive ukhululekile ukunxibelelana nathi.