I-tabular corundum, kwaziwa njengesintered tabular alumina, i-high-purity form of alumina (Al2O3) ecutshungulwa ngokukodwa ukuba ibe ne-aItheyibhile eyodwa, okanye imilo emcaba. Iveliswa nge-sintering (ukufudumala ngaphandle kokunyibilika) i-alumina powder ephezulu kwiqondo lokushisa ngaphezu kwe-1900 ° C, ibangela ukuba iinqununu ze-alumina zikhule kwaye zenze i-crystals ezinkulu, ezinqamlekileyo, ezinjenge-plate.
| Tabular corundum Ukucaciswa | ||
| Into | Umgangatho | Uvavanyo |
| Umxhuzulane obonakalayo | 3.5g/cm3 min | 3.56g/cm3 |
| I-Porosity ebonakalayo | 5.0% ubukhulu | 3.5% |
| Ukufunxwa kwamanzi | 1.5% ubukhulu | 1.1% |
| Ukuqulunqwa kwemichiza | ||
| Into | umgangatho % | Uvavanyo % |
| Al2O3 | 99.2 imiz | 99.4% |
| Na2O | 0.40 ubuninzi | 0.29% |
| Fe2O3 | 0.10 ubuninzi | 0.02% |
| CaO | 0.10 ubuninzi | 0.02% |
| SiO2 | 0.15 ubuninzi | 0.03% |
| Ukusetyenziswa: I-tabular corundum isetyenziswa ngokubanzi kwizixhobo eziphezulu zokusebenza kwi-refractory kwimimandlaintsimbi, ukugalela, iikhemikhali zepetroli, izitena eziphefumlayo, iileyiti zeladi, izinto eziphoswayo, iindawo ezenziweyo, iiseramikhi kunye nezinye iindawo.. Yimathiriyeli egqibeleleyo yerefractory egqwesileyo. I-tabular corundum isetyenziswa njengeUdityaniso lwe-refractoryingasetyenziselwa ngokudibanisa ne-spinel, i-alumina ene-calcined esebenzayo kunye nee-agent zokubopha ezifana ne-samente, udongwe okanye i-resin. Izitena ezilungiselelwe ukucoceka okuphezulu kwe-corundum zinomxholo ophantsi wokungcola (okufana ne-SiO2), ubuninzi obuninzi kunye neempawu ezintle ze-thermodynamic, ukwenza izitena ze-corundum Izitena zichasene nomonakalo obushushu, iikhemikhali kunye nezakhiwo ezibangelwa ukusebenza kwe-gasifiers kunye nezinye iziko zoshishino. | ||
| Iingenelo:i-refractoriness ephezulu; ukuxhathisa okuphezulu kwe-corrosion; ukumelana nokukhukuliseka okuphezulu; ukuxhathisa ukothuka okuphezulu kwe-thermal; amandla aphezulu, ukuqina okuhle; iipropati ezizinzileyo zeekhemikhali; ukuchasana nokukhukuliseka kwe-alkaline ye-slag, ukuchasana kakuhle nokhukuliseko lwe-slag, kunye nokumelana kakuhle nokhukuliseko lwentsimbi enyibilikisiweyo; Ukumelana nokhukuliseko yintsimbi etyhidiweyo kunye nokungena komoya okulungileyo. | ||
Ukusetyenziswa kwe-tabular corundum
Ukuba unayo nayiphi na imibuzo.Nceda uzive ukhululekile ukuqhagamshelana nathi.