Refractories ka masinw ka se ka u yɛrɛ minɛ kosɛbɛ, o bɛ kunbɛn kosɛbɛ flexural strength fɛ, k’a sɔrɔ kari gɛlɛya nɔfɛta ka dɔgɔ. daɲɛ wɛrɛ la, ka ɲɛsin mechanical impact resistance ma, refractories with maximum flexural strength ye baara kɛcogo ɲuman sɔrɔcogo ɲuman ye.
Ni fɛnw falenni sumayalen don, fɛnw ka funteni kunbɛncogo bɛ kɔlɔsi kosɛbɛ flexural strength ni linear expansion coefficient. e modulus ni fracture baara la WOF nɔfɛta bɛ ye kosɛbɛ paramɛtɛrɛw la. paramɛtiri RST bɛ paramɛtɛrɛw jira minnu bɛ tali kɛ kari sabatilen na{{{2} A bɛ se ka ye ka bɔ equation ({3}) la min bɛ se ka kɛ fɛnɲɛnamafagalan ye. Ni kari baara ka bon, WOF ka bon, RST hakɛ ka bon, funteni danfara ka bon min ka kan ka kɛ ka faraw falen, ani kari sabatili ɲuman.
Flexural strength and paramètres bɛ se ka kɛ ka masinw ka se ka fɛnɲɛnamafagalanw kunbɛn ani ka u yɛrɛ tanga funteni ma min bɛ sɔrɔ refractories.
O cogo la, ni refractory ka flexural strength ni parameter value bɛ se ka kunbɛn ani ka ɲɛ, mechanical impact resistance (crack generation) ani thermal shock resistance (crack generation and propagation) of refractory bɛ se ka optimisé sɔrɔ. O la, refractory min bɛ bɛn o ma, o bɛ se ka ladamu baarakɛcogo cogoyaw la minnu kofɔra sanfɛ., o la, parameters kura bɛ se ka kɛ ka ɲɛsin formula in ma walasa ka se ka kɛ sababu ye ka refrectuse sɔrɔ nin cogo la: refrectuer in the refrace in the refrace of the refrace of the refrace of the refrace of the refrace of the refrace of the refrace of the refrace of the refrace in the this formula in.
Ikomi Refractory ka funteni-sɔgɔli-sɔgɔli-sɔgɔli bɛ se ka kɛ sababu ye ka tɛmɛ masinw ka fɛnɲɛnamafagalanw kɛlɛli kan, RST ka kan ka dan.
Fizikikow jateminɛ na, a bɛ jate ko kari surunw bɛ se ka fanga bonya, k’a sɔrɔ fara janw bɛna dɔ bɔ gɛlɛya la, wa fara fila bɛɛ bɛ se ka degun ni kariba sɔrɔ. o la, ka kɛɲɛ ni karicogo mekanikini hukumu ye, ka fara fɛnw kan minnu bɛ se ka kɛ sababu ye ka refractories (fɔɔnɔ) ni funteni kunbɛncogo ɲɛnabɔ.
(1) Fɛn minnu bɛ ni coefficient de expansion lineaire ye walima fɛn minnu bɛ se ka dɔgɔya kudayi, ni u bɛ ka dɔgɔya, ni u bɛ baara kɛ ni u ye ani ni u bɛ baara kɛ ni u ye, olu ka kan ka sugandi walasa ka dɔ bɔ funteni degun na.
(2) Ni fɛnɲɛnamafagalanw tilatilali ni u dilanni taabolo ɲuman ye, refractory porosity bɛ se ka dɔgɔya ani flexural strength bɛ se ka ɲɛtaa sɔrɔ.
(3) Microstructure ɲuman dabɔra walasa ka kari jɛnsɛnni bali ani ka kari jɛnsɛnni fanga dun, walasa ka karicogo ɲɛ, kɛrɛnkɛrɛnnenya la ka kari ni bifurcate crack.
(4) Walasa ka kari wuli, a ka kan ka baara kɛ ni aggregates ye minnu bonya bɛɛ bɛ. Agregate barikamaba baara bɛna kari wuli fana ani ka intergranular crack. baara ɲɛ ka ɲɛ ni transgranular crack characteristics ye, sintering at electrofusion aggregate bɛ se ka crack propagation resistance ɲɛ, o min bɛna kɛ ka crack kɛ agregage la{4}
(5) Walasa ka crack bifurcation (karili bifurcation) sabati, matrix (matrix) yɔrɔ dilanni bɛ se ka kɛ ka baara kɛ ni fɛnw ye minnu bɛ ni / walima anisotropic linear expansion coefficients ye walasa ka funteni bonya bɛnbaliya bonya, o min bɛ se ka kɛ microcracks caman ye{. nka, balansi ɲuman ka kan ka ɲini ka i yɛrɛ tanga microcrack coalescence. ma.
