Sababtoo ah astaamaheeda jireed ee wanaagsan, fal-celinta-sicon carbide silikoon ayaa si ballaaran loo isticmaalay walxo kiimiko ah oo ceeriin ah. Baaxadda ay ku leedahay codsigu waxay leedahay saddex dhinac: soo saarista abrasives; Waxaa loo isticmaalaa in lagu soo saaro qaybaha kululaynta iska caabinta - usha molybdenum silicon, tuubada kaarboonka silikon, iwm.; Wixii soo saarista alaabta refractory. Maaddaama qalab gaar ah, waxaa loo isticmaalaa birta iyo birta dhalaalaysa sida foornada qarxinta birta, cupola iyo farsamaynta kale ee stamping, daxalka, dhaawaca booska xooggan ee alaabta dabka; Biraha dhifka ah (zinc, aluminium, copper) dhalaaliyeyaasha loogu talagalay dhalaalinta foornada, tuubbada qaada birta dhalaalaysa, qalabka shaandhada, dheriga isku dhejinta, iwm.; Iyo tignoolajiyada meel bannaan sida biibiile dabada mishiinka shaambaynta, daab marawaxadaha gaaska dabiiciga ah oo joogto ah; Warshadaha silicate, qaar badan oo kala duwan oo ka mid ah foornada foornada warshadaha, sanduuqa nooca foornada iska caabinta, saggar; In warshadaha kiimikada, waxaa loo isticmaalaa sida jiilka gaaska, carburetor saliid cayriin, foornada desulfurization gaaska flue iyo wixii la mid ah.
Isticmaalka saafiga ah ee alaabta wax soo saarka ee α-SiC, sababtoo ah xooggeeda weyn, aad bay u adagtahay in lagu shiido budada nanoscale ultrafined, iyo qaybuhu waa taarikada ama fiilooyinka, oo loo isticmaalo in lagu shiiddo isafgaradka, xitaa kuleylinta si ay u burburto. heerkulka ku wareegsan, ma soo saari doonaa laalaab aad u cad, lama sinteed karaa, heerka cufnaanta ee alaabta waa yar yahay, iyo caabbinta oksaydhisku waa liidata. Sidaa darteed, wax soo saarka warshadaha ee alaabta, qadar yar oo ah walxaha qashinka ah ee spherical β-SiC ultrafine budada ayaa lagu daraa α-SiC iyo xulashada waxyaabaha lagu daro si loo helo alaabooyin cufan oo sarreeya. Sida wax lagu daro ee isku xidhka alaabta, sida ku cad nooca waxaa loo qaybin karaa oxides biraha, xeryahooda nitrogen, graphite daahirnimo sare, sida dhoobada, aluminium oxide, zircon, zirconium corundum, budada lime, galaas laminated, silicon nitride, silicon oxynitride, sare graphite daahirnimo iyo wixii la mid ah. Xalka aqueous ee xabagta sameynta waxay noqon kartaa mid ama in ka badan oo ka mid ah hydroxymethylcellulose, acrylic emulsion, lignocellulose, istaarijka tapioca, xal kolloidal aluminium oxide, xal kolloidal silicon dioxide, iwm. Heerkulka dabka ee is haysta ma aha isku mid, heerkulkuna waa 1400 ~ 2300 ℃. Tusaale ahaan, α-SiC70% oo leh qaybinta cabbirka qaybinta ka badan 44μm, β-SiC20% oo leh qaybinta cabbirka qaybinta wax ka yar 10μm, dhoobo 10%, oo lagu daray 4.5% lignocellulosic 8%, si siman isku dhafan, oo la sameeyay 50MPa oo shaqeynaya Cadaadiska hawada ee 1400 ℃ ee 4h, cufnaanta muuqata ee alaabta waa 2.53g / cm3, porosity muuqata waa 12.3%, iyo xoogga xajinta waa 30-33mpa. Alaabooyinka kala duwan ee noocyada kala duwan ee alaabta lagu daro waxay ku taxan yihiin shaxda 2.
Guud ahaan, refractories silicon carbide fal-celin-sitered waxay leeyihiin sifooyin tayo sare leh dhammaan dhinacyada, sida xoog cadaadis xoog leh, caabbinta kulaylka xoog leh, iska caabin wanaagsan, conductivity kulaylka xoog iyo caabbinta daxalka dareere in ka badan kala duwan ee heerkulka ballaaran. Si kastaba ha ahaatee, waa in sidoo kale la arkaa in faa'iido-darrada ay tahay in saameynta antioxidant-ku ay liidato, taas oo keenta balaadhinta mugga iyo qallafsanaanta jawiga heerkulka sare si loo yareeyo nolosha adeegga. Si loo hubiyo iska caabbinta oksaydhka ee fal-celinta silikoon carbide refractories, shaqo badan oo xulashada ayaa lagu sameeyay lakabka isku xidhka. Codsiga dhoobada (oo ay ku jiraan oksaydhyada birta ah) isku-dhafka, laakiin ma aysan bixin saameyn baraf ah, qaybaha silikoon carbide waxay weli ku xiran yihiin oksaydhka hawada iyo daxalka.
Waqtiga boostada: Juun-21-2023