Clay bonded refractory castable sidoo kale waa ka si caadi ah loo isticmaalo, in kasta oo refractoriness aanu ka sarrayn aluminium refractory castable sare, laakiin qiimuhu waa xad raqiis ah, hoos ficil of hacetaphosphate dispersant sodium iyo xinjirowga, asal ahaan helaan waxqabadka dhismaha, heerkulka iyo heerkulka hoose. xoog.Sidaa darteed, in dhoobada dhoobada ah ee dhoobada ah ee dhoobada ah, kaliya firdhiyeyaashu waxay si buuxda u kala diri karaan qaybaha dhoobada si ay u yareeyaan dheecaanka dhoobada, halka sodium hexametaphosphatine ay ka ciyaari karto door wanaagsan oo kala firdhinta dhoobada dhoobada ah, sidaas darteed dhoobada dhoobada ah. castable refractory waxa uu leeyahay dareere wanaagsan iyo constructability, si loo hubiyo in waxqabad heerkul sare oo wanaagsan.
Saamiga isku dhafka ah ee kabka refractory dhoobada waa kala duwan yahay.dhoobo lagu daray kabka refractory waxay leedahay shuruudo index gaar ah oo loogu talagalay dhoobada: AL2O3 waa 29% ~ 35%, Fe2O3 waa ka yar 1.8%, K2O waa ka yar 1.1%, gubashada waa la dhimay ilaa 10% ~ 14%, refractoriness waa ka weyn yahay. 1670℃, waxayna leedahay heerkul aad u ballaaran oo kala duwan, oo ka kooban macdanta waa in ay ku jiraan qadar yar oo montmorillonite ah iyo mica iyo walxo kale, si ay u yeelato isku xirnaan wanaagsan iyo caag.In ka badan 60% dhoobada waa in ay ka yar tahay 0.088mm ka dib marka la shiido, iyo qiyaasta waa 7% -13%.
Isku-darka isku-darka ah wuxuu badiyaa isticmaalaa clinker dhoobo iyo bauxite clinker sare, cabbir weyn 10mm, wadarta guud ee xisaabaadka qiyaastii 70%, budada ganaax dooro gaar ah ama Clinker bauxite sare ee shiidi, mararka qaarkood sidoo kale lagu qaso budada aluminium ama budada corundum, in ka yar xisaabaadka 0.088mm in ka badan 85%, in castable 17% ~ 25%.
Doorashada guud ee sibidhka sare ee aluminium ama sibidh saafi ah calcium sida wakiilka adag, qiyaasta waa 0.2% ~ 3.0%, in nidaamka kala firdhiso colloidal dhoobo, ku dar ions biraha alkali sida kala firdhiso, samayn karaa dhoobo alkali ion, sababtoo ah ions alkali leeyihiin positivity xoog leh, kala duwanaansho iman kara, xoog wax laga naxo oo u dhexeeya qaybo dhoobo ah.Waxaa jira cations badan oo dhoobo ah, iyo inta u dhaxaysa qaybo ka mid ah ayaa kordheysa, taas oo kor u qaada jel colloidal dhoobada, sii daayo biyo lacag la'aan ah, xoojisaa dareere ah ee castable, iyo waa wax ku ool ah si ay u dhalaalid walaaqaya.
Marka la barbar dhigo kabka cementiga ah ee aluminate, kabka caagga ah ee dhoobada ah ee caadiga ah ayaa leh sifooyinka xoogga sare, hoos uma dhacna xoogga heerkulka dhexdhexaadka ah iyo iska caabinta spalling.Marka la barbardhigo caagagga, waxay leedahay sifooyinka dhismaha habboon iyo kaydinta fudud.Heerkulka isticmaalkiisu guud ahaan waa 1400 -- 1500 ℃.Sodium hexametaphosphate(Hexametaphosphate) ayaa si weyn loogu isticmaalay foornooyinka ololka sida foornada wax lagu qooyay ee dhoobada ah iyo foornada kululaynta.
Waqtiga boostada: Febraayo-13-2023