Intshayelelo, isicelo kunye nenkqubo yokuvelisa i-white corundum
IAlumina eFused White (WFA)yintsimbi eyenziweyo eyenziwe ngomgubo we-alumina we-industrial njengeyona mathiriyeli ekrwada, epholiswayo yaze yakhazimliswa emva kokunyibilika kwe-arc yobushushu obuphezulu. Icandelo layo eliphambili yi-aluminium oxide (Al₂O₃), kunye nokuhlanjululwa okungaphezulu kwe-99%. Imhlophe, iqinile, ixinene, kwaye inokumelana nobushushu obuphezulu, ukumelana nokugqwala kunye neempawu zokugquma. Yenye yezona zinto zisetyenziswa kakhulu kwi-abrasives eziphambili.
1. Intshayelelo yeMveliso
I-corundum emhlophe luhlobo lwe-corundum eyenziweyo. Xa kuthelekiswa ne-brown corundum, inomxholo ophantsi wokungcola, ubunzima obuphezulu, umbala omhlophe, akukho silica yamahhala, kwaye ayinabungozi kumzimba womntu. Ngokukodwa ifanelekile kwiziganeko zenkqubo kunye neemfuno eziphezulu zokucoceka kwe-abrasive, umbala kunye nokusebenza kokusila. I-White corundum inobulukhuni be-Mohs ukuya kuthi ga kwi-9.0, okwesibini kuphela kwidayimane kunye ne-silicon carbide. Ineempawu ezintle zokuzilola, akulula ukubambelela kumphezulu womsebenzi ngexesha lokusila, kwaye inokutshatyalaliswa kobushushu okukhawulezayo. Ifanelekile kuzo zombini iindlela zokulungisa ezomileyo nezimanzi.
2. Izicelo eziphambili
Ngenxa yeempawu zayo ezizodwa kunye neekhemikhali, i-corundum emhlophe isetyenziswa ngokubanzi kwiindawo ezininzi eziphezulu, kubandakanywa kodwa kungaphelelanga kule mibandela ilandelayo:
Iibrasives kunye nezixhobo zokugaya
Isetyenziselwa ukwenza i-ceramic grinding wheels, i-resin grinding wheels, ilaphu le-emery, i-sandpaper, i-scouring pads, i-pastes yokugaya, njl njl. Yinto efanelekileyo yokugaya i-high-carbon steel, i-alloy steel, i-stainless steel, iglasi, i-ceramics kunye nezinye izinto.
Ukuqhunyiswa kwesanti kunye nokupolisha
Ifanelekile ukucocwa kwendawo yesinyithi, ukususwa kwe-rust, ukuqinisa indawo kunye nonyango lwe-matte. Ngenxa yobunzima bayo obuphezulu kwaye ayinayo ityhefu kwaye ayinabungozi, isoloko isetyenziselwa ukuqhunyiswa kwesanti kunye nokupolisha ukubumba okuchanekileyo kunye neemveliso zensimbi ezingenasici.
Izixhobo zokuphikisa
Ingasetyenziswa njenge-aggregate okanye umgubo ocolekileyo wezitena ezihlaziyiweyo eziphucukileyo, izinto zokuphosa, kunye nezinto zokuphosa. Isetyenziswa ngokubanzi kwiindawo ezinobushushu obuphezulu njengentsimbi, intsimbi enyibilikayo enyibilikisa intsimbi, iikilni zeglasi, njl.
Umzi-mveliso we-Electronic/optical
Isetyenziselwa ukwenza ii-ceramics ezicocekileyo, i-optical glass grinding, i-LED ye-sapphire substrate polishing, i-semiconductor silicon wafer yokucoca kunye nokugaya, njl., kunye ne-high-purity ultrafine emhlophe ye-corundum powder iyafuneka.
Isigcwalisi esisebenzayo
Isetyenziselwa irabha, iplastiki, i-coating, i-ceramic glaze kunye namanye amashishini ukuphucula ukuxhathisa ukunxiba, ukuzinza kwe-thermal kunye nokusebenza kwe-insulation yezixhobo.
3. Inkqubo yokuvelisa
Inkqubo yokuvelisa i-white corundum ingqongqo kwaye yenzululwazi, ngakumbi ibandakanya la manyathelo alandelayo:
Ukulungiselela izinto ezikrwada
Khetha i-alumina powder ephezulu ye-industrial (Al₂O₃≥99%), isikrini kunye nokuvavanya iikhemikhali izinto eziluhlaza ukuqinisekisa ukuba umxholo wokungcola uphantsi kakhulu kwaye ubungakanani be-particle bufana.
Ukunyibilika kweArc
Beka umgubo we-alumina kwisithando somlilo se-arc esinamanqanaba amathathu kwaye unyibilike kubushushu obuphezulu obumalunga ne-2000℃. Ngethuba lenkqubo yokunyibilikisa, i-electrodes iyafudumala ukuze inyibilike ngokupheleleyo i-alumina kwaye isuse ukungcola ukwenza i-corundum ecocekileyo iyancibilika.
Ukupholisa ngekristale
Emva kokuba inyibilika ipholile, ikhazimla ngokwendalo ukwenza iikristale ezimhlophe ze-corundum. Ukupholisa okucothayo kunceda ukuphuhliswa kweenkozo kunye nokusebenza okuzinzile, okuyikhonkco eliphambili lokuqinisekisa umgangatho we-corundum emhlophe.
Ukutyumza kunye nokwahlukana kwamagnetic
I-crystals epholileyo ye-corundum iyachithwa kwaye icolile ngokucokisekileyo ngezixhobo zomatshini, emva koko ukungcola okufana nentsimbi kususwe ngokuhlukana okunamandla kwamagnetic ukuqinisekisa ukucoceka kwemveliso egqityiweyo.
Ukutyumza kunye nokuhlolwa
Sebenzisa iibhola zebhola, i-airflow mills kunye nezinye izixhobo zokutyumza i-corundum emhlophe kwi-particle efunekayo, kwaye emva koko usebenzise izixhobo zokuhlola ukuchaneka okuphezulu ukulinganisa ubungakanani bemilinganiselo ngokwemigangatho yamazwe ngamazwe (njenge-FEPA, i-JIS) ukufumana isanti okanye i-powder encinci yenkcazo eyahlukeneyo.
Ukuhlelwa kakuhle kunye nokucoca (kuxhomekeke kwinjongo)
Kwezinye izicelo eziphezulu, ezifana nebakala le-elektroniki kunye ne-optical grade white corundum powder, ukuhlelwa kwe-airflow, i-pickling kunye nokucocwa kwe-ultrasonic kuqhutyelwa phambili ukuphucula ukucoceka kunye nokuchaneka kokulawula ubungakanani be-particle size.
Ukuhlolwa komgangatho kunye nokupakishwa
Imveliso egqityiweyo kufuneka iqhube uchungechunge lweenkqubo zokulawula umgangatho ezifana nokuhlalutya kweekhemikhali (Al₂O₃, Fe₂O₃, Na₂O, njl.), Ukubona ubungakanani be-particle size, ukuxilongwa kobumhlophe, njl.
Njengomathiriyeli wemizi mveliso osebenza ngokugqwesileyo, i-corundum emhlophe idlala indima engenakuthathelwa indawo kumashishini amaninzi. Akuyena kuphela ummeli obalulekileyo wee-abrasives eziphezulu, kodwa kunye neyona nto ingundoqo esisiseko kwiinkalo zobuchwepheshe obuphezulu ezifana nomatshini ochanekileyo, i-ceramics esebenzayo, kunye nezixhobo zombane. Ngophuhliso oluqhubekayo lwetekhnoloji yoshishino, iimfuno zomgangatho wentengiso ye-corundum emhlophe nazo ziphucula ngokuqhubekayo, nto leyo ikhuthaza abavelisi ukuba baqhubeke nokuphucula iinkqubo, baphucule ukusebenza kwemveliso, kwaye baphuhlise kwicala lokucoceka okuphezulu, ubungakanani bamasuntswana acocekileyo, kunye nomgangatho ozinzile.