Inkqubo yokwenziwa kweMicropowder yaseBrown Corundum kunye noLawulo loMgangatho
Hamba uye kuyo nayiphi na imveliso ye-hardware processing, kwaye umoya uzaliswe livumba elicacileyo lothuli lwesinyithi, likhatshwa yi-shrill whirring yomatshini wokusila. Izandla zabasebenzi ziqatywe ngegrisi emnyama, kodwa umgubo omdaka omenyezelayo phambi kwabo—brown corundum micropowder—“amazinyo” kunye “nencam ebukhali” yoshishino lwanamhlanje. Le nto inzima, eyaziwa ngokuba yi "corundum" ngabangaphakathi kwishishini, iguqulelwa kwi-ore ukuya kwi-powder ecocekileyo, uvavanyo lobushushu obuphezulu kunye nokuchaneka.
1. Amadangatye eqondo eliwaka: Inkqubo yokuVeliswa kweBrown Corundum Micropowder
Brown corundum micropowderiqala njengamaqhuma angabonakaliyo e-bauxite. Ungawajongeli phantsi la maqhuma omhlaba; kufuneka babe ne-ores yodidi oluphezulu kunye nomxholo we-Al₂O₃ ubuncinane we-85% ukuze bafanelekele ukunyibilikiswa. Ukuvulwa komlilo wokunyibilikisa, ngumbono omangalisayo ngokwenene—iqondo lobushushu elingaphakathi kwi-arc yombane liyanyuka, lifikelela ngaphezu kwe-2250°C. I-Bauxite, idityaniswe ne-iron filings kunye ne-coke, iyawa kwaye inyibilika kwidangatye elivuthayo, ihlambuluke kwaye isuse ukungcola, ekugqibeleni yenze iibhloko ezishinyeneyo ze-corundum. Ukukhethwa kohlobo lwesithando somlilo nako kubambe ngokwalo: isithando somlilo sinikezela ngokugqwesileyo kwamanzi kunye nococeko oluphezulu, olufanelekileyo kwiimveliso ezintle; isithando somlilo esisisigxina sinikezela ngemveliso ephezulu kunye neendleko eziphantsi. Abavelisi bahlala bekhetha ngokusekelwe kwimfuno.
I-brown corundumiibhloko ezitsha eziko zisengama-“rough,” kude nokuba ngumgubo ocolekileyo. Okulandelayo, i-crusher ithatha indawo: i-roller crusher enamazinyo aphindwe kabini ukwenzela ukutyumza okukrakra, ukwaphula ubuninzi, ngelixa isityuli sempembelelo esithe nkqo senza ukutyumza okulungileyo, ukwaphula amasuntswana ukuya kumaqhekeza angama-millimeter. Kodwa ayisiyiyo yonke loo nto-ukwahlukana kwamagnetic kunye nokususwa kwentsimbi kubalulekile kumgangatho. Xa ilayitiwe, i-high-gradient separator magnetic inokususa ngokupheleleyo naziphi na iifayili zentsimbi eziseleyo kwizinto eziphathekayo. Izahluli zamandla aphezulu aphezulu asetyenziswa ziinkampani ezifana neHenan Ruishi zinokunciphisa i-Fe₂O₃ ukuya ngaphantsi kwe-0.15%, ibeka isiseko sokukhetha okulandelayo.
Itanki yokuchola nayo ibambe iimfihlo. I-15% -25% isisombululo se-hydrochloric acid sisetyenziselwa iiyure ezingama-2-4. Idityaniswe ne-Zhenyu Grinding enelungelo elilodwa lomenzi "isixhobo sokucoca ukutyhala-tsalwa," umgubo uyashukunyiswa kwaye uhlanjwe, ukunyibilikisa ukungcola okufana nesilicon kunye nekhalsiyam, kuphuculwa ngakumbi ukucoceka komgubo ocolekileyo. Isinyathelo sokugqibela sokuhlola sifana ne "drafti": izikrini ezingcangcazelayo zibonelela ngokuhlolwa okuqhubekayo, ukwahlula amaqhekeza amahle ukusuka kwi-coarse ukuya kwi-fine. Isixhobo sokuhlola esinelungelo elilodwa lomenzi weChongqing Saite Corundum siquka iileya ezintathu zezikrini kunye nescreen esinesiqingatha secandelo, siqinisekisa ukuhanjiswa kobungakanani besuntswana ngokuthe ngqo ngokungathi kulinganiswe ngerula. Umgubo ocoliweyo we sieved ke ubhalwe njengoko kufuneka-200#-0 kunye 325#-0 zizinto eziqhelekileyo. Isuntswana ngalinye lifana nesanti, impumelelo yokwenene.
2. Ukuhlolwa okugqwesileyo: ILifeline yoMgangatho weMicropowder
Isetyenziswa phi ibrown corundum micropowder? Ukusuka ekupholiseni iglasi yefowuni ephathwayo ukuya kwintsimbi yentsimbi yokusila, kwanokona kuthoba ukusebenza okuncinci kunokukhokelela kumsindo wabathengi. Ngoko ke, ukulawulwa komgangatho ngumthombo oqhubekayo woxinzelelo kumzi-mveliso. Okokuqala, qwalasela ukubunjwa kweekhemikhali-i-Al₂O₃ umxholo kufuneka ube ≥95% (imveliso ephezulu ifuna i-≥97%), i-TiO₂ ≤3.5%, kunye ne-SiO₂ kunye ne-Fe₂O₃ kufuneka igcinwe ngaphakathi kwe-1% kunye ne-0.2% ngokulandelanayo. Amagcisa aselabhoratri abeka iliso kwi-spectrometer yonke imihla; nokona kuguquguquka kuncinci kwidatha kunokukhokelela ekusebenzeni ngokutsha kwebhetshi iphela.
Uvavanyo lwepropathi ebonakalayo lungqongqo ngokulinganayo:
Ubunzima beMohs kufuneka bufikelele kwi-9.0. Isampulu ikrwelwa kwipleyiti yereferensi; naluphi na uphawu lokuthamba lugqalwa njengokusilela.
Uxinaniso lokwenyani lulinganiselwe kwi-3.85-3.9 g/cm³. Ukuphambuka kubonisa ingxaki ngesakhiwo sekristale.
Uvavanyo lwe-refractory lufuna ngakumbi-i-crack kunye ne-powder emva kokuphonswa kwisithando somlilo se-1900 ° C iiyure ezimbini? Ibhetshi yonke ichithiwe!
Ubungakanani besuntswana elifanayo libalulekile kwiziphumo zokupholisha. Umhloli wekhwalithi usasaza i-spoonful of powder phantsi kwe-laser particle size analyzer. Nakuphi na ukutenxa kwixabiso le-D50 elidlula i-1% kuthathwa njengokungaphumeleli. Emva kwayo yonke loo nto, ubungakanani bamasuntswana angalinganiyo buya kubangela imikrwelo okanye iipatches kwindawo yentsimbi epholisiweyo, ekhokelela kwizikhalazo ezivela kubathengi.
Umgangatho wesizwe we-GB / T 2478-2022, ohlaziywe kwi-2022, ube yi-ironclad yoshishino. Olu xwebhu lungqingqwa lobuchwephesha lulawula yonke into ukusuka kukwakheka kweekhemikhali kunye nesakhiwo sekristale ukuya ekupakishweni nasekugcinweni kwazoi-brown corundum. Ngokomzekelo, ifuna ukuba i-α-Al₂O₃ kufuneka ibonise ifom yekristale ene-trigonal. Ngaba uyayibona ikristale engaqhelekanga phantsi kwemakroskopu? Uxolo, imveliso iya kuvalelwa! Abavelisi ngoku kufuneka babhalise amaqondo obushushu kunye nokufuma kwendawo yokugcina - kuba besoyika ukuba ii-micropowders ziya kuba manzi kwaye zidibanise, zonakalise isidima sabo.
3. Ukuguqula iNkunkuma ibe liNdyebo: ITekhnoloji yokuRisayikilishwa Yophula iNgxaki yeziBonelelo
Ishishini le-corundum kudala lihlupheka ngenxa yokuqokelelwa kwenkunkuma kunye namavili okusila, angathathi nje indawo kodwa angcolise indalo. Nangona kunjalo, kule minyaka mibini idlulileyo, itekhnoloji ye-"corundum esetyenzisiweyo" iye yavela, inika inkunkuma entsha ubomi obutsha. I-patent entsha e-Yingkou, kwiPhondo laseLiaoning, ithathe i-recycling inyathelo eliya phambili: okokuqala, iimveliso ze-corundum zenkunkuma zinikezwa "ukuhlamba" ukususa ukungcola, kulandelwa ukutyumza kunye nokuhlukana kwamagnetic, kwaye ekugqibeleni, ukunyuswa okunzulu kunye ne-hydrochloric acid. Le nkqubo inyusa ukususwa kokungcola ngama-40%, kuzisa ukusebenza kwezinto ezihlaziyiweyo kufutshane naleyo ye-micropowder enyulu.
Ukusetyenziswa kwezinto ezisetyenzisiweyo kukwandiswa. Iifektri ezixhathisayo ziyathanda ukuyisebenzisela udongwe lwetaphole-kufuneka ixutywe kwizinto ezityhidiweyo, kwaye izinto ezihlaziyiweyo zibonelela ngeendleko ezimangalisayo. Ngcono nangakumbi, inkqubo yokurisayikilishwa iyanciphai-brown corundumiindleko nge-15% -20%, okwenza abaphathi bonwabe ngendlela emangalisayo. Noko ke, amagqala kwimizi-mveliso alumkisa ngelithi: “Ukukhazimliswa ngokuchanekileyo kufuna into engazange ibonwe ngaphambili.
4. Isiphelo: I-Micropowder, iNcinci njengokuba Injalo, ithwala ubunzima boShishino
Ukususela kumadangatye avuthayo ombane we-arc ombane ukuya kwi-hum ye-separators magnetic, ukusuka kwi-churning of pickling tanks ukuya kwimigca yokuskena ye-laser particle size analyzers-ukuzalwa kwe-brown corundum micropowder yi-epic encinci yoshishino lwanamhlanje. Amalungelo awodwa omenzi wechiza amatsha, imigangatho emitsha yesizwe, kunye nobuchwepheshe obusetyenzisiweyo buyaqhubeka nokutyhalela phezulu isilingi yoshishino. Imfuno yemizi-mveliso esezantsi yokuchaneka konyango lomphezulu okufutshane kakhulu iyaqhubeka nokuqhubela phambili umgangatho we-micropowder uphezulu. Kumgca wokudityaniswa, iingxowa zomgubo omdaka ziyatywinwa zize zilayishwe kwiilori, eziya kwimizi-mveliso kwilizwe lonke. Zisenokungaculwa, kodwa zixhasa amandla angundoqo e-Made in China, phantsi komphezulu wepolishi yawo engaphezulu.