Si loo fahmo habka xisaabinta ee cufnaanta kabka refractory, waa maxay godka hawada?
1. Waxaa jira saddex nooc oo daloolada:
1. Dhinac waa xidhan yahay, dhinaca kalena waxa lala xidhiidhaa dibadda, kaas oo loo yaqaan dalool furan.
2. Daloolka xiran wuxuu ku xiran yahay muunada oo aan la xiriirin dibadda.
3. Daloollada waxa loo yaqaan godad.
Total porosity, oo ah porosity run ah, waxa loola jeedaa boqolkiiba wadarta guud ee daldaloolada ee mugga guud ee muunadda;Guud ahaan, daloolka la maro ayaa lagu daraa daloolka furan, iyo daloolka xiran waa ka yar yahay oo adag tahay in si toos ah loo cabbiro.Sidaa darteed, porosity-ga waxaa lagu muujiyaa porosity furan, taas oo ah, porosity muuqda.Porosity muuqata waxa ay tilmaamaysaa boqolkiiba wadarta guud ee daldaloolooyinka furan ee muunadda ilaa wadarta mugga muunada.
Cufnaanta bulk waxa ay tilmaamaysaa saamiga mugga la kasban karo ee muunadda la qalajiyey ilaa wadarta muggeeda, taas oo ah, saamiga mugga kabka ah ee jidhka daloolsan ilaa muggiisa guud, oo lagu muujiyey Kg/m3 ama g/cm3.Qulqulka muuqda iyo cufnaanta bulk waa mid ka mid ah saldhigyada lagu xakameynayo tirada kabka kabka ah ee dhismaha.Labada tilmaame ee waxqabadka waxa lagu qiyaasi karaa muunad isku mid ah.Kuwa soo socdaa waa cufnaanta bulk iyo porosity-ka muuqda ee kabka la iska leexiyo ee inta badan la isticmaalo.
2. Kuwa soo socdaa waa cufnaanta bulk iyo porosity muuqda ee kabka dib-u-celinta ee caadi ahaan la isticmaalo.
CA-50 sibidhka sare ee aluminium castable, 2.3-2.6g/cm3, 17-20
CA-50 dhoobo sibidhka ah oo la tuuri karo, 2.2-2.35g/cm3, 18-22
dhoobo ku xidhan alumina sare, 2.25-2.45g/cm3, 16-21
Sibidhka hooseeya ee aluminium kabka ah, 2.4-2.7g/cm3, 10-16
Sibidhka aadka u hooseeya ee aluminium kabka ah, 2.3-2.6g/cm3, 10-16
CA-70 cement corundum castable, 2.7-3.0g/cm3, 12-16
Dhoobada dhalada biyaha ah, 2.10-2.35g/cm3, 15-19
Fosfooraska aluminiumka sarreeya, 2.3-2.7g/cm3, 17-20
Aluminium fosfateed kabka sare ee aluminium, 2.3-2.6g/cm3, 16-20
3. Cufnaanta sibidhka hooseeya ee la tuuri karo ayaa si kooban hoos lagu soo bandhigay
Kabka sibidhka hooseeya wuxuu u qaataa sibidhka aluminate ee kalsiyumka sibinder ahaan, iyo kabka leh CaO content in ka yar 2.5% ayaa guud ahaan loo yaqaannaa kabka sibidhka hooseeya.Kasbashada dhaqameed ee ka duwan, kabka sibidhka hooseeya waxaa loo diyaariyaa iyadoo lagu beddelayo badi ama dhammaan sibidhka alumina sare leh budada superfine (xajmiga qayb ka yar 10 microns) oo leh isku-xidhka agglomeration oo leh isku mid ama isku mid ah kiimiko isku mid ah oo ka mid ah walxaha ugu muhiimsan, hagaajinta xajmiga qaybta. qaybinta, budada yar yar, qaabka walxaha iyo arrimo kale, iyo ku darida qadar yar oo kala firdhiya (biyo-yareeyaha), qadar dhexdhexaad ah oo dib-u-dhac ah iyo waxyaabo kale oo isku dhafan.
Cufnaanta dhoobada hoose ee kabka cementiga ah waa 2.26g/cm ³ qiyaastii.
Cufnaanta alumina sare ee kabka cement-ka hooseeya waa 2.3 ~ 2.6g/cm ³ qiyaastii.
Corundum hoose ee cement kabka ah oo leh cufnaanta 2.65 ~ 2.9g/cm ³ qiyaastii.
Waqtiga boostada: Oct-24-2022