1. Waa maxay refractory?
Qalabka dib u celinta guud ahaan waxay tixraacaan walxo aan bir ahayn oo aan organic ahayn oo leh caabbinta dabka oo ka badan 1580 ℃.Waxaa ka mid ah macdanta dabiiciga ah iyo alaabooyin kala duwan oo lagu sameeyay habab gaar ah iyadoo loo eegayo shuruudaha ujeeddooyinka qaarkood.Waxay leedahay sifooyin farsamo oo heerkul sare ah oo gaar ah iyo xasilloonida mugga wanaagsan.Waa qalab lagama maarmaan u ah dhammaan noocyada qalabka heerkulka sare.Waxay leedahay adeegsi aad u ballaaran.
2. Noocyada refractories
1. Refractories Acid caadi ahaan waxay tixraacaan refractories ka kooban SiO2 ka weyn 93%.Muuqaalkeeda ugu muhiimsan waa in ay iska caabin karto nabaad-guurka aashitada heerkulka sare, laakiin way fududahay in lagu falceliyo caleenta alkaline.Lebenka silica iyo lebenka dhoobada ah ayaa sida caadiga ah loo isticmaalaa sida refractories aashitada.Leben silica waa shey siliceous ah oo ka kooban in ka badan 93% silicon oxide.Qalabka ceeriin ee la isticmaalo waxaa ka mid ah silica iyo leben silica qashinka ah.Waxay leedahay iska caabin xooggan oo ay u leedahay nabaad-guurka aashitada, heerkulka jilciya culeyska sare, mana yaraado ama xitaa ma ballaariyo wax yar ka dib caleenta soo noqnoqda;Si kastaba ha ahaatee, way fududahay in lagu baabi'iyo slag alkaline waxayna leedahay iska caabin kulaylka oo liidata.Leben silica waxaa inta badan loo isticmaalaa foornada kookaha, foornada dhalada, foornada birta aashitada ah iyo qalabka kale ee kulaylka.Leben dhoobo waxay u qaadataa dhoobada ceeriin sida alaabta ceeriin ee ugu weyn waxayna ka kooban tahay 30% ~ 46% alumina.Waa refractory aashito liidata oo leh caabbinta gariir kulaylka wanaagsan iyo iska caabbinta daxalka ee caarada aashitada.Aad baa loo isticmaalaa.
2. Dib-u-celinta alkaline guud ahaan waxay tixraacaan refractories leh magnesium oxide ama magnesium oxide iyo calcium oxide oo ah qaybaha ugu muhiimsan.Refractory-yadani waxay leeyihiin refractorness sare iyo iska caabin xooggan oo ka dhan ah alkolada.Tusaale ahaan, lebenka magnesia, leben magnesia chrome, leben magnesia chrome, leben magnesia aluminium, dolomite leben, forsterite leben, iwm inta badan waxaa loo isticmaalaa foornada ka samaysan birta alkaline, foornada dhalaalaysa biraha non-ferrous iyo foornada sibidhka.
3. Aluminium silicate refractories waxay tixraacaan refractories SiO2-Al2O3 oo ah qaybta ugu muhiimsan.Marka loo eego nuxurka Al2O3, waxaa loo qaybin karaa semi siliceous (Al2O3 15 ~ 30%), clayey (Al2O3 30 ~ 48%) iyo alumina sare (Al2O3 ka weyn 48%).
4. Dhallaanka iyo tuurista refractory waxa loola jeedaa alaabta refractory leh qaab gaar ah ka dib markii ay dhalaaliyeen dufcada heerkul sare hab gaar ah.
5. Dib-u-soo-celinta dhexdhexaadka ah waxay tixraacaan refractories-ka aan sahlanayn in lagula dhaqmo aashitada ama alkaline-ka heerkulka sare, sida refractories kaarboon iyo chromium refractories.Qaar ayaa sidoo kale u nisbeeya alumina-celinta sare ee qaybtan.
6. Nadiifinta gaarka ah waa walxo cusub oo aan biraha ahayn oo aan organic ahayn oo lagu sameeyay dhoobada dhaqameed iyo refractories guud.
7. Amorphous refractory waa isku dhafka ka kooban isku-darka isku-darka, budada, binder ama isku-darka kale ee qayb ahaan, kaas oo loo isticmaali karo si toos ah ama ka dib diyaarinta dareeraha habboon.Refractory aan qaabayn waa nooc cusub oo refractory ah oo aan lahayn calcination, iska caabintiisuna kama yarayn 1580 ℃.
3. Waa maxay refractories inta badan la isticmaalo?
Nadiifinta caadiga ah ee sida caadiga ah loo isticmaalo waxaa ka mid ah leben silica, leben silica semi, leben dhoobo, leben aluminium sare, leben magnesia, iwm.
Qalabka khaaska ah ee inta badan la isticmaalo waxaa ka mid ah lebenka AZS, leben corundum, leben magnesium chromium si toos ah ugu xidhan, leben carbide silicon, silicon nitride bonded silicon carbide leben, nitride, silicide, sulfide, boride, carbide iyo refractories kale oo aan oxide;Calcium oxide, chromium oxide, alumina, magnesium oxide, beryllium oxide iyo walxo kale oo refractory.
Dahaarka kulaylka ee inta badan la isticmaalo iyo agabka dib-u-celinta waxaa ka mid ah alaabada diatomite, alaabta asbestos-ka, guddiga kuleylka kuleylka, iwm.
Qalabka dib u celinta ee inta badan la isticmaalo waxaa ka mid ah qalabka wax lagu hagaajiyo ee foornada, alaabta dabka u adkeysata, kabka dabka u adkaysta, balaastikada dabka u adkeysata, dhoobada dabka u adkaysata, qalabka dab-demiska, qalabka dabka u adkaysta, dahaarka dabka u adkaysta, dabka fudud -kabka u adkaysta, dhoobada qoriga, valves ceramics, iwm.
4. Waa maxay sifooyinka jirka ee refractories?
Astaamaha jireed ee refractories waxaa ka mid ah dhismooyin dhisme, guryaha kulaylka, qalabka farsamada, guryaha adeega iyo sifooyinka shaqada.
Sifooyinka qaab-dhismeed ee refractories waxaa ka mid ah porosity, cufnaanta bulk, nuugista biyaha, dabar-goynta hawada, qaybinta cabbirka daloolka, iwm.
Sifooyinka kulaylka ee refractories waxaa ka mid ah conductivity kaamerada, isbahaysiga ballaarinta kulaylka, kulayl gaar ah, awoodda kulaylka, conductivity kaamerada, kulaylka sii daayo, iwm.
Astaamaha farsamaysan ee refractories waxaa ka mid ah xoogga cufan, xoogga xajinta, xoogga dabacsanaanta, xoogga jeexjeexa, xoogga dhogorta, xoogga saameynta, caabbinta xirashada, gurguurta, xoogga bond, modules laastikada, iwm.
Waxqabadka adeegga ee refractories waxaa ka mid ah caabbinta dabka, heerkulka jilcinta, isbeddelka khadka dib u kululaynta, caabbinta shoogga kuleylka, caabbinta caabbinta, caabbinta acid, caabbinta alkali, caabbinta fuuqbaxa, iska caabbinta CO nabaad guurka, conductivity, caabbinta oksaydhka, iwm.
Kartida shaqada ee alaabta dib u soo celinta waxaa ka mid ah joogteynta, qulqulka, dareeraha, caagagga, isku xirnaanta, adkeysiga, xinjirowga, adkaanta, iwm.
Waqtiga boostada: Mar-15-2022