Inkqubo yokwenziwa kweBrown Corundum Micropowder kunye noLawulo loMgangatho
Ngena kuyo nayiphi na ifektri yokucubungula izixhobo, kwaye umoya uzaliswa livumba elicacileyo lothuli lwesinyithi, kunye nokuvunguza okukrakra koomatshini bokugrumba. Izandla zabasebenzi zigcotshwe ngamafutha amnyama, kodwa phambi kwabo kukho umgubo omdaka okhazimlayo—umgubo omncinci we-corundum micropowder— “ngamazinyo” abalulekileyo kunye “nomphetho obukhali” kwishishini lanamhlanje. Le nto iqinileyo, eyaziwa ngokuba yi “corundum” ngabantu abangaphakathi kwishishini, itshintsha ukusuka kwi-ore ibe yi-powder ecolekileyo, uvavanyo lobushushu obuphezulu kunye nokuchaneka.
1. Amadangatye eedigri eziliwaka: Inkqubo yokuvelisa iBrown Corundum Micropowder
Umgubo omncinci we-corundum micropowderIqala njengeziqwenga ze-bauxite ezingabalulekanga. Musa ukuyithatha lula le miqwenga yomhlaba; kufuneka ibe zi-ore ezikumgangatho ophezulu ezinomxholo we-Al₂O₃ ubuncinane we-85% ukuze ifanelekele ukunyibilikiswa. Xa isithando sokunyibilikisa sivuleka, ngumbono omangalisayo ngokwenene—ubushushu obungaphakathi kwesithando sombane se-arc buyanda, bufikelela kwi-2250°C. I-Bauxite, idityaniswe nee-iron filings kunye ne-coke, iyawa kwaye inyibilike kumalangatye anamandla, icoca kwaye isuse ukungcola, ekugqibeleni yenze iibhloko ze-corundum ezimdaka ezixineneyo. Ukukhetha uhlobo lwesithando nakho kuyafana: isithando sokunyibilikisa sinikezela ngokutyibilika okugqwesileyo kunye nobunyulu obuphezulu, esifanelekileyo kwiimveliso ezintle; isithando esizinzileyo sinika imveliso ephezulu kunye nexabiso eliphantsi. Abavelisi badla ngokukhetha ngokusekelwe kwimfuno.
I-corundum emdakaIibhloko ezisandula ukuvela esithandweni zisese "zii-roughs" nje, kude nokuba yi-powder ecolekileyo. Okulandelayo, i-crusher ithatha indawo: i-roller crusher enamazinyo amabini yokutyumza okurhabaxa, iqhekeza i-bulk, ngelixa i-vertical impact crusher ityumza kakuhle, iqhekeza amasuntswana abe ziingceba ezinobukhulu be-millimeter. Kodwa akupheleli apho—ukwahlulwa kwe-magnetic kunye nokususwa kwesinyithi kubalulekile kumgangatho. Xa ivuliwe, i-high-gradient magnetic separator inokususa ngokupheleleyo naziphi na ii-iron filings eziseleyo kwizinto. I-high-power magnetic separator ezisetyenziswa ziinkampani ezifana neHenan Ruishi zinokunciphisa i-Fe₂O₃ ibe ngaphantsi kwe-0.15%, ibeka isiseko se-pickling elandelayo.
Itanki yokukha ikwagcina iimfihlo. Isisombululo se-hydrochloric acid esiyi-15%-25% sisetyenziswa iiyure ezi-2-4. Xa idityaniswe nesixhobo sokucoca esinelungelo lokushicilela sikaZhenyu Grinding esithi “isixhobo sokucoca esityhalwayo nesitsalwayo”, umgubo uyashukunyiswa uze uhlanjwe, unyibilikise ukungcola okufana ne-silicon kunye ne-calcium, nto leyo ephucula ngakumbi ubunyulu bomgubo ocolekileyo. Inyathelo lokugqibela lokucoca lifana “nedrafti”: izikrini ezingcangcazelayo zibonelela ngovavanyo oluqhubekayo, zahlula amasuntswana amancinci ukusuka kumatye aqinileyo ukuya kumatye acolekileyo. Isixhobo sokuhlola esinelungelo lokushicilela sikaChongqing Saite Corundum sikwanazo neengqimba ezintathu zezikrini kunye nesikrini sesiqingatha, ukuqinisekisa ukusasazwa kobukhulu bamasuntswana ngokuchanekileyo ngokungathi kulinganiswa ngerula. Umgubo ocoliweyo ohluziweyo emva koko ubhalwa njengoko kufuneka—200#-0 kunye no-325#-0 ziimpawu eziqhelekileyo. Isuntswana ngalinye lifana njengesanti, impumelelo yokwenene.
2. Uhlolo Oluhle: Indlela Yokuphila Yomgangatho WeMicropowder
Isetyenziswa phi i-brown corundum micropowder? Ukususela ekupolisheni iglasi yefowuni ukuya kwii-lining steel mill blast furnitures, nokuba kuncinci kangakanani na ukwehla kokusebenza kunokukhokelela kumsindo wabathengi. Ke ngoko, ulawulo lomgangatho luyinto ehlala ibangela uxinzelelo kumzi-mveliso. Okokuqala, cinga ngolwakhiwo lweekhemikhali—umxholo we-Al₂O₃ kufuneka ube yi-≥95% (iimveliso eziphezulu zifuna i-≥97%), i-TiO₂ ≤3.5%, kunye ne-SiO₂ kunye ne-Fe₂O₃ mazigcinwe ngaphakathi kwe-1% kunye ne-0.2% ngokulandelelana. Iingcali zelebhu zijonga i-spectrometer imihla ngemihla; nokuba kukutshintshatshintsha okuncinci kwedatha kunokukhokelela ekusetyenzisweni kwakhona kwebhetshi yonke.
Uvavanyo lwepropathi ebonakalayo lunzima ngokulinganayo:
Ubunzima beMohs kufuneka bufikelele kwi-9.0. Isampulu ikrwelwa kwipleyiti yokubhekisela; naluphi na uphawu lokuthamba luthathwa njengokusilela.
Uxinano lokwenyani lulinganiselwe kwi-3.85-3.9 g/cm³. Ukuphambuka kubonisa ingxaki kwisakhiwo sekristale.
Uvavanyo oluchasene ne-refractory lunzima nangakumbi—ukuqhekeka kunye nomgubo emva kokuphoswa kwisithando somlilo esingu-1900°C kangangeeyure ezimbini? Lonke iqela liyasuswa!
Ukufana kobukhulu bamasuntswana kubalulekile kwiziphumo zokupholisha. Umhloli womgangatho usasaza icephe lomgubo phantsi kwe-laser particle size analyzer. Nakuphi na ukuphambuka kwixabiso le-D50 elidlula i-1% kuthathwa njengokusilela. Kaloku, ubungakanani bamasuntswana obungalinganiyo buya kubangela imikrwelo okanye amabala kumphezulu wesinyithi opholisiweyo, nto leyo ekhokelela kwizikhalazo ezivela kubathengi.
I-GB/T 2478-2022 esemgangathweni kazwelonke, ehlaziyiweyo ngo-2022, iye yaba yinto esetyenziswa kakhulu kushishino. Olu xwebhu lobuchwephesha lubanzi lulawula yonke into ukusuka kwimilo yeekhemikhali kunye nesakhiwo sekristale ukuya ekupakishweni nasekugcinweni kwayo.i-corundum emdakaUmzekelo, ifuna ukuba i-α-Al₂O₃ ibonise uhlobo oluqhelekileyo lwekristale ye-trigonal. Ngaba kukho i-crystallization eyahlukileyo phantsi kwe-microscope? Uxolo, imveliso iya kubanjwa! Abavelisi ngoku kufuneka babhalise amaqondo obushushu kunye nokufuma kwendlu yokugcina izinto—ngoloyiko lokuba ii-micropowders ziya kufuma kwaye zihlangane, nto leyo eyonakalisa udumo lwazo.
3. Ukuguqula Inkunkuma Ibe Yingcebo: Iteknoloji Yokurisayikilisha Iphula Ingxaki Yezixhobo
Ishishini le-corundum kudala lijongene nokuqokelelana kwezinto ezisusa inkunkuma kunye namavili okugaya, ezingathathi nje indawo kuphela kodwa zingcolisa nokusingqongileyo. Nangona kunjalo, kwiminyaka emibini edlulileyo, itekhnoloji "ye-corundum ephinda isetyenziswe" ivele, inika izinto ezilahliweyo ithuba elitsha lokuphila. Ilungelo elilodwa lomenzi wechiza eYingkou, kwiPhondo laseLiaoning, lithathe inyathelo eliya phambili lokuphinda isetyenziswe: okokuqala, iimveliso ze-corundum ezilahliweyo zinikwa "ibhafu" yokususa izinto ezingcolisayo, kulandele ukutyumzwa kunye nokwahlulwa kwemagnethi, kwaye ekugqibeleni, ukucolwa okunzulu nge-hydrochloric acid. Le nkqubo yonyusa ukususwa kokungcola ngama-40%, okuzisa ukusebenza kwezinto eziphinda zenziwe kufutshane noko kwe-virgin micropowder.
Ukusetyenziswa kwezinto ezisetyenzisiweyo kuyanda. Iifektri ezisebenzisa i-refractory ziyakuthanda ukuyisebenzisela udongwe lwe-taphole—kufuneka ixutywe nezinto ezisetyenziswayo, kwaye izinto ezisetyenzisiweyo zibonelela ngexabiso elifanelekileyo. Okungcono nangakumbi, inkqubo yokuphinda isetyenziswe inciphisai-corundum emdakaiindleko nge-15%-20%, nto leyo eyenza abaphathi bonwabe kakhulu. Nangona kunjalo, amaqhawe oshishino ayalumkisa: “Ukupholisha ngokuchanekileyo kufuna izinto ezisemgangathweni ophezulu. Ukuba ukungcola okuncinci kuxutywa nezinto ezisetyenzisiweyo, umphezulu okwisibuko uya kuba neempawu ngoko nangoko!”
4. Isiphelo: I-Micropowder, nangona incinci, ithwala ubunzima boshishino
Ukususela kumalangatye avuthayo ezitofu zombane ukuya kwisandi see-magnetic separators, ukusuka ekuqhushumbisweni kweetanki zokucoca ukuya kwimigca yokuskena yee-laser particle size analyzers—ukuzalwa kwe-brown corundum micropowder yinto encinci kakhulu kushishino lwanamhlanje. Amalungelo omenzi amatsha, imigangatho emitsha yesizwe, kunye netekhnoloji ephinda isetyenziswe iyaqhubeka nokunyusa umgangatho woshishino. Imfuno yamashishini asezantsi yokuchaneka konyango lomphezulu ophantse ube mkhulu iyaqhubeka nokunyusa umgangatho we-micropowder. Kumgca wokuhlanganisa, iingxowa ze-brown powder zivalwe kwaye zilayishwe kwiilori, zisiya kwiifektri kulo lonke ilizwe. Zisenokungadunyiswa, kodwa zixhasa amandla angundoqo e-Made in China, phantsi komphezulu we-polish yayo engaphezulu.