Alumina birikiba ye fɛn suguya dɔ ye min tɛ se ka muɲu. Fɛn minnu bɛ se ka kɛ fɛn ye min tɛ se ka kɛ, olu ka baarakɛcogo ye minnu bɛ suman funteni caman na, i n’a fɔ: fɛn minnu bɛ se ka kɛ fɛn ye, olu ye fɛnw ye minnu bɛ se ka kɛ fɛn ye minnu bɛ se ka kɛ fɛn ye minnu bɛ se ka kɛ fɛn ye minnu bɛ se ka kɛ sababu ye ka fɛnw sɛgɛsɛgɛ, ka fɛnw sɛgɛsɛgɛ, ka fɛnw nɔgɔya, ka fɛnw nɔgɔya, ka fɛnw bila u ka fɛnw na, a ɲɔgɔnnaw. , o fɛnw bɛ se ka kɛ sababu ye ka fɛnw lajɛ minnu bɛ se ka kɛ sababu ye ka mɔgɔw bila u ka baara kɛ ni u ye. Fɛn minnu bɛ se ka kɛ fɛn ye min tɛ se ka kɛ.
1. Refractoriness .
Refractoriness ye fɛn ye min bɛ se ka funteni caman sɔrɔ. fɛnɲɛnamafagalanw i n’a fɔ mullite, kyanite, andalusite ani sillimanite, olu ka kan ka kɔrɔbɔ u ka refractoriness waati la walasa ka fɛnw saniyacogo faamuya. misali la, kɛrɛnkɛrɛnnenya la minnu bɛ ni fanga barikama ye, olu bɛna dɔ bɔ refractoriness.} la.
Refractoriness sumanikɛcogo : Aw bɛ fɛnɲɛnamafagalanw walima fɛnw kɛ minnu tɛ se ka wuli ka kɛ kɔnɔ saba ye. Kɔnɔbara sanfɛla basigilen janya ye 2mm ye, duguma da janya ye 8mm ye, a janya ye 30mm ye. o tuma na a bɛ bila disiki kelen kan ni funteni hakɛ jateminɛnan ye ani ka sumaya ni a hakɛ ye min bɛ se ka kɛ ni a hakɛ ye min bɛ se ka kɛ ni a ye{5} Cone ni a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ko a bɛ se ka kɛ ni a ka ca ni a ye. K’a sababu kɛ ji-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ--{7} ye-{7}} ye 'kɔnɔna-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ--{8}} 'kɔnɔna-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-yɔrɔ-{{
Refractoriness ka kan ka danfara don a ni a ka funteni yɔrɔ ni a ka baara kɛcogo funteni na:
(1) Refractoriness ni melting point kɔrɔ tɛ kelen ye. wuliyɔrɔ ye balannako funteni ye kristalɛfɛn kelen na ka wuli ka bɔ cogo gɛlɛn na ka taa jilama cogoya la. Refractoriness ye fɛnɲɛnamafagalan suguya caman ka wuli hakɛ ye. A ye tiɲɛ ye ko fɛnɲɛnamafagalan min bɛ kɛ ka caya, o ye fɛn ye min bɛ bɛn ɲɔgɔn ma, ani a ka funteni hakɛ min bɛ bɛn o ma, ani a ka funteni hakɛ ye o ye min bɛ bɛn o ma, ani a ka funteni hakɛ min bɛ sɔrɔ o la, o ye fɛn ye min bɛ bɛn o ma.
(2) Refractoriness should not be misunderstood as the temperature at which refractory materials can be used under high temperature. Because it has completely softened to the loss of mechanical strength. For example, the basic refractory material melts first at a lower temperature due to the bonding part, and its damage is based on the softening of the bonding agent, which is much lower than the refractoriness of the material. Generally, the use temperature ka bɔ bɔgɔ birikiw la 200~250 ɲɔgɔn ka dɔgɔ ni refractoriness. ye .
2. Layini kura jiginni .
Sumaya sira caman yeli bɛ tali kɛ sɛgɛsɛgɛli la min bɛ to ka caya walima ka a wuli a sumayalen kɔfɛ fo ka se funteni hakɛ dɔ ma, min maralen bɛ waati dɔ kɔnɔ, ka nɛnɛ fo ka se so funteni ma.
Layini kura yeli ye taamasiyɛn nafama dɔ ye min bɛ se ka kɛ sababu ye ka fɛnw hakɛ jateminɛ minnu bɛ se ka kɛ fɛn ye min tɛ se ka wuli ka bɔ u nɔ na. fɛnw hakɛ caya walima u jiginni jenilen kɔfɛ, o b’a jira ko fɛn minnu tɛ se ka wuli, olu tɛ tasuma bɔ ka ɲɛ ka da a kan, u ka funteni hakɛ dɔgɔyali walima u ka funteni tɛ se ka kɛ fɛn ye min bɛ se ka kɛ sababu ye ka mɔgɔw bila u ka fɛnw lajɛ{. ni fɛn min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min tɛ se ka kɛ fɛn ye min tɛ se ka kɛ fɛn ye min bɛ se ka fɛn caman kɛ ka ɲɛ. Walasa ka baara kɛ ni izini kilnw ye. ka da funteni caman kan, farikolo ni kemikɛli fɛn dɔw bɛna taa ɲɛ, o bɛna kɛ sababu ye ka fura in hakɛ caya walima ka dɔgɔya, wa a bonya bɛna bonya. Yɛlɛma bɛ kɛ sababu ye ka foro farikolo birikiw caman yeli kɛ, o la, a bɛ nɔ bila foro farikolo yɔrɔ dafalen na, ani o la, fɛnɲɛnamafagalan bɛ se ka tiɲɛ, o la, farilajidɛsɛ bɛ se ka tiɲɛ, o la, farilajidɛsɛ bɛ se ka tiɲɛ, o la, farilajidɛsɛ bɛ se ka tiɲɛ, o ye ko ye min bɛ kɛ ni fɛn ye min bɛ kɛ ni fiɲɛ ye, o bɛ se ka kɛ sababu ye. ko fɛn dilannen ka refire line bɛ Changé nafa kofɔlen kɔnɔ. .
Layini min bɛ segin ka segin a cogo kɔrɔ la, o jate bɛ kɛ nin cogo la:
3. Sumayabana kunbɛncogo .
Refractories ye industriw ka forow kɔnɔfɛnw ye. A bɛ nɔ bila a la ko funteni bɛ kɛ a la, wa tuma dɔw la, a bɛ nɔ bila funteni caman yeli la funteni na. funteni sɔgɔli kunbɛncogo bɛ tali kɛ se la refractories kan min bɛ sɔrɔ funteni jiginni teliya la k’a sɔrɔ a ma tiɲɛ.
An ka jamana ka sɛgɛsɛgɛli cogoyaw sɛgɛsɛgɛli la: 1100℃, ji nɛnɛ; A jiralen bɛ waatiw la.
Kun caman bɛ yen minnu bɛ nɔ bila refractoires ka funteni-sɔgɔli la, o la, kumasen caman bɛ yen. Aw bɛ nin jɛɲɔgɔnya in kɛ ka ɲɛfɔli surun kɛ:
Ka bɔ sanfɛ jɛɲɔgɔnya dafabali la (sanfɛ formula tɛ jateminɛ kɛ fɛn in cogoya n’a bonya la, funteni (nɛnɛ) cogoyaw la, sigida degun min bɛ sɔrɔ funteni caman yeli fɛ funteni na, a ɲɔgɔnnaw.), a bɛ se ka ye ko nin fɛn in ka funteni-sɔrɔ-minɛn bɛ ni nin ko kunbabaw ye:
(1) modulu élastique low;
(2) coefficient de expansion lineaire ka dɔgɔ;
(3) fɛn min bɛ kɛ ka fɛnw falen falen, o minɛnba bɛ ni funteni jiginni ye;
(4) Daɲɛgafe labɛncogo n’a jɔcogo kunba bɛnnen don. .
Fɛn minnu tɛ se ka wuli, olu dilanni taabolo la, fɛɛrɛ jɔnjɔn minnu bɛ se ka kɛ ka fɛnw falen-falen funteni kunbɛncogo ɲɛ, olu bɛ sɔrɔ nin cogo in na:
(1) ka fɛn dilannen fasa hakɛ Changer walasa ka fɛnɲɛnamafagalanw sɔrɔ minnu tɛ se ka dɔgɔya, walima minnu bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye.
(2) Sugandili ni kɔrɔsili bɛnnenw dilanni cogoyaw la walasa ka farankanw sigicogo n’u jɔcogo kunba kɛ, i n’a fɔ mikro-karabilenw dilanni ani fɛnw kɔnɔfɛnw cayali fɛn dɔw la. Tablo 1 bɛ fɛn caman ɲɛfɔ minnu bɛ se ka fɛnw falen-falen ni fɛn caman ye.
4. Co Corrosion resistance .
Industriw ka foro suguya caman bɛ yen. fɛn minnu bɛ se ka kɛ fɛn ye, olu bɛna kɛ fɛn suguya caman na, i n’a fɔ nɛgɛ wulilen, nɛgɛ wulilen, nɛgɛ sɔgɔlen, sɔgɔli, funteni jiginni, funteni degun, ani fiɲɛ hakɛ caman yeli (kɛrɛnkɛrɛnnenya la, fiɲɛ dɔgɔyali) o la, a bɛ kɛ sababu ye ka fɛnw tiɲɛ, a ɲɔgɔnnaw, a ɲɔgɔnnaw ka se ka kɛ fɛn ye min bɛ bɛn o ma. Ka se izini forow baarakɛyɔrɔ ma, minnu cɛma co corrosion resistance ye o dɔ ye.
Co corrosion resistance bɛ tali kɛ se la refractory materials ka cracking walima disintegration kɛlɛ CO fiɲɛ kɔnɔ. ni refractory product ye co fiɲɛ barikama sɔrɔ℃500 ɲɔgɔn na (300~600 degre ), chimique reaction bɛna kɛ 2Co ye 2Co ye{{{6}C, ani ka carbone separation kɛ ka crack walima ka crack walima ka kɛ sababu ye ka crack walima ka crack kɛ ka se ka crack walima ka crack kɛ ka crack walima ka se ka kɛ sababu ye. Blast foro in sɔgɔli, refractory products bɛ kari ani a jɔcogo bɛ lafiya ka da sababu kofɔlenw kan foro farikolo yɔrɔ la 400-600 degɛrɛ la , o ye kun nafama dɔ ye min bɛ kɛ sababu ye ka blast foro tiɲɛni kɛ. ka nɛgɛ ɔkisizɛni hakɛ dɔgɔya ani ka refractory products ka se ka a yɛrɛ tanga cocorsion ma{11}
5. doni nɔgɔya funteni .
The load deformation index of refractory materials at high temperature is expressed by the softening temperature under load. It is the resistance of the product to the combined effect of high temperature and load, and it also indicates the softening range of the refractory product showing obvious plastic deformation. This index is often used as the basis for determining the maximum temperature of the refractory material.
According to the load softening temperature index of refractory products, it can be judged under which conditions the refractory loses its pressure-bearing capacity during use, and the internal microstructure of the refractory can also be inferred.
6. Funteni caman bɛ sɔrɔ .
Funteni hakɛ caman bɛ tali kɛ fɛnw tiɲɛni ni fɛnw jiginni waati cɛ funteni camanba kɔnɔ ani doni dɔ la. Krepɛri hakɛ camanba in na, o bɛ kɛ sababu ye ka fɛnw falen-falen fanga, funteni ani waati jira funteni caman na, o b’a jira ko fɛn min bɛ kɛ ka fɛnw falen-falen, o b’a jira ko fɛn min bɛ kɛ ka fɛnw falen-falen, funteni hakɛ dɔ la ani waati dɔ la{2}
Sanfɛla taamasiyɛnw minnu bɛ kɛ ka ɲɛsin biriki fɛnw ma minnu bɛ kɛ ka caya, olu ka kan ka jateminɛ. industriw ka forow kɔnɔ minnu bɛ funteni caman na, k’a sababu kɛ baarakɛcogo danfaralen ye ani baarakɛcogo, taamasiyɛnba minnu jateminɛna birikiw la minnu tɛ kelen ye, olu bɛ bɔ ko kɛlenw na. misali la, aliminaba minnu bɛ kɛ ka funteni sɔrɔ, ka fara fɛn nafama kan, o ye fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ sababu ye.
