7 Nooc oo ka mid ah Walxaha Ceyriinka Refractory Corundum ee Caadi ahaan loo Isticmaalo Kasabadaha Dib-u-celinta

01 Sdhexda Corundum
Korundum Sintered, oo sidoo kale loo yaqaan alumina sintered ama alumina-dhalaalaya, waa clinker refractory oo laga sameeyay alumina calcined ama alumina warshadeed sida walxo ceeriin ah, oo la geliyo kubbadaha ama jirka cagaaran, oo lagu miiray heerkul sare oo ah 1750 ~ 1900 ° C.

Alumina-dabiiciga ah oo ka kooban in ka badan 99% aluminium oxide ayaa inta badan laga sameeyaa corundum-cagaaran lebbisan oo toos ah oo la isku daray. Heerka qiiqa gaaska wuxuu ka hooseeyaa 3.0%, cufnaanta mugga ayaa gaareysa 3.60% / mitir cubic, refractoriness waxay ku dhowdahay barta dhalaalka ee corundum, waxay leedahay xasillooni mugga wanaagsan iyo xasilloonida kiimikada heerkulka sare, oo aan la baabi'in hoos u dhigista jawiga. dhalada dhalaalaysa iyo bir dhalaalaysa. , xoog farsamo oo wanaagsan oo xidho iska caabin heerkulka caadiga ah iyo heerkulka sare.

02Corundum la isku daray
Corundum Fused waa corundum macmal ah oo lagu sameeyay dhalaalay budada aluminium saafiga ah foornada koronto kuleylkeedu sarreeyo. Waxay leedahay sifooyinka barta dhalaalka sare, xoogga farsamada sare, caabbinta shoogga kulaylka wanaagsan, caabbinta daxalka xooggan iyo iskudar ballaadhineed yar oo toosan. Corundum Fused waa walxo ceeriin ah oo loogu talagalay soo saarista walxaha dib-u-celinta gaarka ah ee heerka sare ah. Inta badan waxaa ku jira corundum cad oo isku qasan, corundum brown isku qasan, corundum-cad oo hoose, iwm.

03Corundum cad oo isku dhafan
Korundum cad oo isku dhafan ayaa laga sameeyay budada aluminium saafi ah waxaana lagu dhalaalay heerkul sare. Waa midab cad. Habka dhalaalidda ee corundum cad asal ahaan waa habka dhalaalidda iyo dib-u-kicinta budada aluminium ee warshadaha, mana jirto wax yareyn ah. Waxa ku jira Al2O3 kama yara 9%, waxa ku jira wasakhduna aad bay u yar tahay. Adayggu wax yar buu ka yar yahay corundum-ka buni, adayguna wax yar buu ka hooseeyaa. Badanaa waxaa loo isticmaalaa in lagu sameeyo qalab wax-soo-saarka, ceramics gaar ah iyo qalabka dib-u-celinta horumarsan.

04Isku dhafka Brown Corundum
Corundum brown fused waxa laga sameeyaa alumina bauxite-sare oo ah alaabta ceeriin ee ugu weyn waxaana lagu dhex qasaa kookaha (anthracite), waxaana lagu dhalaaley foorno koronto oo heerkulkeedu sarreeyo heerkul ka sarreeya 2000°C. Corundum-ka bunni ee isku qasan waxa uu leeyahay qaab-dhismeed cufan iyo qallafsanaan aad u sarreeya waxaana inta badan loo adeegsadaa dhoobada, shubista saxda ah iyo alaabta dib u celinta ee horumarsan.

05Corundum-cad-hoosaad
Korundum subwhite waxaa soo saaray koronto-dhalaysa fasalka gaarka ah ama fasalka koowaad ee bauxite iyadoo hoos loo dhigayo jawiga iyo xaaladaha la xakameeyey. Markaad dhalaalayso, ku dar wakiilka yareeya (kaarboon), wakiilka dejinta (faylalka birta) iyo wakiilka decarburizing (miisaanka birta). Sababtoo ah ka kooban yahay kiimikaad iyo sifooyinka jireed waxay ku dhow yihiin corundum cad, waxaa loo yaqaan 'sub-white corundum'. cufnaanta bukku waxa ay ka sarraysaa 3.80g/cm3 iyo borosity-keeda muuqata waxa ay ka yar tahay 4%. Waa shay ku habboon in lagu soo saaro maaddooyinka dib-u-celinta ee horumarsan iyo agabka adkaysiga u leh.

06Chrome corundum
Iyada oo ku saleysan corundum cad, 22% chromium ayaa lagu daraa, waxaana lagu dhalaaley foorno koronto ah. Midabku waa guduud-guduud. Adayggu wax yar ayuu ka sarreeyaa corundum-ka brown, oo la mid ah corundum cad, iyo microhardness-ku wuxuu noqon karaa 2200-2300Kg/mm2. Adayggu wuu ka sarreeyaa kan korundum cad oo wax yar ayuu ka hooseeyaa kan corundum brown.

07Zirconium Corundum
Zirconium corundum waa nooc ka mid ah corundum macmal ah oo lagu sameeyo dhalaalay alumina iyo zirconium oxide heerkulka sare ee foornada arc koronto, crystallizing, qaboojinta, burburinta iyo baaritaanka. Marxaladda ugu weyn ee crystal zirconium corundum waa α-Al2O3, marxaladda crystal secondary waa baddeleyite, iyo sidoo kale waxaa jira xaddi yar oo wajiga galaaska. Qaab-dhismeedka crystal-ka iyo qaab-dhismeedka corundum zirconium waa arrimo muhiim ah oo saameeya tayada. Zirconium corundum waxay leedahay sifooyinka qallafsanaanta sare, adkaanta wanaagsan, xoogga sare, cufan cufan, xoog shiidis xoog leh, sifooyinka kiimikada deggan, iyo caabbinta shoogga kulaylka wanaagsan. Waxaa si weyn loogu isticmaalaa warshadaha abrasives iyo walxaha refractory. Marka loo eego nuxurkeeda zirconium oxide, waxa loo qaybin karaa laba heer oo wax soo saar ah: ZA25 iyo ZA40.