Intshayelelo, isicelo kunye nenkqubo yokuvelisa i-white corundum
I-White Fused Alumina (WFA)sisiqholo esenziwe ngokwenziwa esenziwe ngomgubo we-alumina wemizi-mveliso njengesixhobo esiphambili, esipholiswayo size siqine emva kokunyibilika kwe-arc kubushushu obuphezulu. Icandelo laso eliphambili yi-aluminium oxide (Al₂O₃), enobunyulu obungaphezulu kwe-99%. Simhlophe, siqinile, sixinene, kwaye sinokumelana okuhle kakhulu nobushushu obuphezulu, ukumelana nokugqwala kunye neempawu zokugquma. Sesinye sezona ziqholo ziphambili ezisetyenziswa kakhulu.
1. Intshayelelo yeMveliso
I-corundum emhlophe luhlobo lwe-corundum yokwenziwa. Xa ithelekiswa ne-corundum emdaka, inomlinganiselo ophantsi wokungcola, ubulukhuni obuphezulu, umbala omhlophe ngakumbi, ayina-silica ekhululekileyo, kwaye ayinabungozi emzimbeni womntu. Ifanelekile ngokukodwa kwimicimbi yenkqubo eneemfuno eziphezulu zokucoceka okurhabaxa, umbala kunye nokusebenza kokusila. I-corundum emhlophe inobulukhuni be-Mohs obufikelela kwi-9.0, ilandela idayimani kunye ne-silicon carbide kuphela. Ineempawu ezilungileyo zokuzilola, kulula ukunamathela kumphezulu womsebenzi ngexesha lokusila, kwaye inokutshisa ubushushu ngokukhawuleza. Ifanelekile kuzo zombini iindlela zokucubungula ezomileyo nezimanzi.
2. Izicelo eziphambili
Ngenxa yeempawu zayo ezizodwa zomzimba nezekhemikhali, i-white corundum isetyenziswa kakhulu kwiindawo ezininzi eziphezulu, kuquka kodwa kungaphelelanga kwezi zinto zilandelayo:
Izixhobo zokurhawuzelela kunye nezixhobo zokusila
Isetyenziselwa ukwenza amavili okugaya e-ceramic, amavili okugaya e-resin, ilaphu le-emery, iphepha lesanti, ii-scouring pads, ii-grinding pastes, njl. Yinto efanelekileyo yokugaya kwintsimbi enekhabhoni ephezulu, intsimbi ye-alloy, intsimbi engatyiwayo, iglasi, ii-ceramics kunye nezinye izinto.
Ukuqhumisa isanti kunye nokupolisha
Ifanelekile ekucoceni umphezulu wesinyithi, ukususa umhlwa, ukuqinisa umphezulu kunye nonyango lwe-matte. Ngenxa yobunzima bayo obuphezulu kwaye ayinabungozi kwaye ayinabungozi, idla ngokusetyenziselwa ukugquma isanti kunye nokupolisha iimolds ezichanekileyo kunye neemveliso zentsimbi engagqwaliyo.
Izinto ezivuselelayo
Ingasetyenziswa njenge-aggregate okanye i-fine powder eyenziwe ngezitena eziphucukileyo ezirhabaxa, izinto eziphoswayo, kunye nezinto zokuphosa. Isetyenziswa kakhulu kwiindawo ezinobushushu obuphezulu ezifana nentsimbi, ii-linings ze-oven zesinyithi ezinganyangekiyo, ii-oven zeglasi, njl.njl.
Ishishini le-elektroniki/le-optical
Isetyenziselwa ukuvelisa iiseramikhi ezicocekileyo kakhulu, ukugaya iglasi ebonakalayo, ukupolishwa kwe-LED sapphire substrate, ukucoca nokugaya i-silicon wafer ye-semiconductor, njl.njl., kwaye kufuneka umgubo we-corundum omhlophe ococekileyo kakhulu.
Isizalisi esisebenzayo
Isetyenziswa kwirabha, iplastiki, i-coating, i-ceramic glaze kunye neminye imboni ukuphucula ukumelana nokuguguleka, uzinzo lobushushu kunye nokusebenza kobushushu bezinto.
3. Inkqubo yemveliso
Inkqubo yokuvelisa i-white corundum inzima kwaye isayensi, ikakhulu ibandakanya la manyathelo aphambili alandelayo:
Ukulungiswa kwezinto eziluhlaza
Khetha umgubo we-alumina wemizi-mveliso ococekileyo kakhulu (Al₂O₃≥99%), uhlole kwaye uvavanye izinto ezikrwada ngekhemikhali ukuqinisekisa ukuba umxholo wokungcola uphantsi kakhulu kwaye ubungakanani bamasuntswana buyafana.
Ukunyibilika kwe-arc
Faka umgubo we-alumina kwisithando somlilo esinezigaba ezintathu uze unyibilikise kubushushu obuphezulu obumalunga nama-2000℃. Ngexesha lenkqubo yokunyibilikisa, ii-electrode ziyafudunyezwa ukuze zinyibilikise ngokupheleleyo i-alumina kwaye zisuse ukungcola ukuze zenze i-corundum melt ecocekileyo.
Ukupholisa i-crystallization
Emva kokuba inyibiliki ipholile, inyibilika ngokwendalo ukuze yenze iikristale ezimhlophe ze-corundum eziqinileyo. Ukupholisa kancinci kunceda uphuhliso lweenkozo kunye nokusebenza okuzinzileyo, nto leyo eyintloko yokuqinisekisa umgangatho we-corundum emhlophe.
Ukutyumza kunye nokwahlulwa kwemagnethi
Iikristale ze-corundum ezipholileyo ziyatyunyuzwa kwaye zityunyuzwe kakuhle zizixhobo zoomatshini, emva koko ukungcola okufana nentsimbi kuyasuswa ngokwahlukana okunamandla kwemagnethi ukuqinisekisa ubunyulu bemveliso egqityiweyo.
Ukutyumza kunye nokuhlola
Sebenzisa iibhola, ii-air flow mills kunye nezinye izixhobo ukutyumza i-corundum emhlophe ukuya kubukhulu obufunekayo be-particle, uze usebenzise izixhobo zokuhlola ezichanekileyo kakhulu ukuze ulinganise ubungakanani be-particle ngokwemigangatho yamazwe ngamazwe (efana ne-FEPA, i-JIS) ukuze ufumane isanti okanye i-micro powder eneempawu ezahlukeneyo.
Ukulungiswa kakuhle kunye nokucoca (kuxhomekeke kwinjongo)
Kwezinye izicelo ezikumgangatho ophezulu, ezifana nomgubo we-corundum omhlophe we-elektroniki kunye nowe-optical grade, ukuhlelwa kokuhamba komoya, ukucocwa kunye nokucocwa kwe-ultrasonic kuyenziwa ukuphucula ngakumbi ubumsulwa kunye nokuchaneka kokulawula ubungakanani bamasuntswana.
Ukuhlolwa komgangatho kunye nokupakishwa
Imveliso egqityiweyo kufuneka idlule kwiinkqubo zolawulo lomgangatho ezinje ngohlalutyo lweekhemikhali (Al₂O₃, Fe₂O₃, Na₂O, njl.njl.), ukufunyanwa kobungakanani bamasuntswana, ukufunyanwa kobumhlophe, njl.njl., kwaye emva kokuphumelela uvavanyo, ipakishwa ngokweemfuno zabathengi, ngokubanzi kwiingxowa ezingama-25kg okanye kwiingxowa zeetoni.
Njengesixhobo semizi-mveliso esisebenza kakuhle kakhulu, i-corundum emhlophe idlala indima engenakutshintshwa kumashishini amaninzi. Ayisiyonto ibalulekileyo kuphela emele izinto eziqholiweyo eziphezulu, kodwa ikwayimpahla ebalulekileyo esisiseko kwiinkalo zobugcisa obuphezulu ezifana noomatshini bokuchwetheza ngokuchanekileyo, iiseramikhi ezisebenzayo, kunye nezixhobo ze-elektroniki. Ngophuhliso oluqhubekayo lwetekhnoloji yemizi-mveliso, iimfuno zomgangatho wemarike ze-corundum emhlophe nazo ziyaphucuka rhoqo, nto leyo ekwakhuthaza abavelisi ukuba baqhubeke nokwenza ngcono iinkqubo, baphucule ukusebenza kwemveliso, kwaye baphuhlise kwicala lobunyulu obuphezulu, ubungakanani besuntswana obucolekileyo, kunye nomgangatho ozinzileyo ngakumbi.