ʻO ka silicate carbon brick no ka neutral refractory, ka mea e kū i ka hoʻoheheʻe ʻana o ka waika a me ka alkali slags, nā mea hoʻoheheʻe, a me nā mea ʻino ʻē aʻe. Loaʻa i ka Silicon carbide nā ʻano o ka ikaika kiʻekiʻe, ke kūpaʻa anti-oxidation maikaʻi, a ʻaʻohe hoʻololi i ke kiʻekiʻe wela. I loko o nā mea maka a pau o ka non-oxide refractory bricks, slilica carbon brick ka mea ʻoi aku ka waiwai a hoʻohana nui ʻia ma kekahi wahi. hiki ke hoʻohana ʻia i nā ʻoihana like ʻole, e like me ka ʻoihana pōhaku, ʻoihana aniani, ʻoihana metala, ʻoihana paʻi, a me ka ʻoihana māmā. Ma waho aʻe o ke kūʻai aku, ʻoi aku ka maikaʻi o ke kūʻai aku ʻana i ka ʻinoʻino o ke kaiapuni, e like me ka conductivity wela kiʻekiʻe, ke kūpaʻa abrasive maikaʻi, ke kūpaʻa haʻalulu nui, ke kūpaʻa ikaika i ka waikawa a me ka alkali slag erosion a me ka hoʻonui haʻahaʻa wela a me nā mea ʻē aʻe.
ʻO ka silicate carbide block maka kumu he silika carbide, ma kahi o 72% -99%. Kapa ʻia ʻo Silicon carbide ka moissanite, ke one corundum a i ʻole ke one refractory. i hana ʻia e ke one quartz, petroleum coke a i ʻole ka lanahu, a me nā ʻāpana lāʻau, i hana ʻia e ka hoʻoheheʻe wela kiʻekiʻe i loko o ka umu ahi kūʻē.
Hoʻokumu ʻia nā pōhaku silika carbide mai ka silicon carbide, kahi mea maka i hoʻohui ʻia i loko o kahi umu uila ʻano kūʻē i ka mahana ma mua o 2500°C, ma o ka hopena o ka silica me ke kalapona. ʻO nā pōhaku lepo kalapona silika he ʻumi mau manawa i ko nā refractory fireclay, maikaʻi ʻino a me ke kūpaʻa haʻalulu wela, a hiki ke hana i nā ʻano paʻakikī. Hiki i ka silica cabon brick ke pale aku i ka hoʻouka kaua a me ka ʻāʻī ʻana o ke ahi.
Hiki ke hoʻokaʻawale ʻia nā pōhaku lepo silicon carbide refractory i loko o ka pālolo i hoʻopaʻa ʻia i nā pōhaku silikon carbide, Si3N4 i hoʻopaʻa ʻia i nā pōhaku silika carbide, Sialon i hoʻopaʻa ʻia i nā pōhaku silika carbide, β-SiC i hoʻopaʻa ʻia i nā pōhaku silikon carbide, Si2ON2 i hoʻopaʻa ʻia i nā pōhaku silikon carbide a me nā pōhaku lepo kalikikona carbide recrystal.
Pilikia Carbide Silika | |||||
Nā mea | Unite | Pilikia SiO2 Silicon Carbide | ʻO nā pōhaku lepo karbida silikino i hoʻopaʻa ʻia ʻo Azoxty-cornpounds | Mullite Bonded Silicon Carbide Bricks | |
Al2O3 | % | ~ | ~ | ≥10 | |
SiO2 | % | ≤8 | ~ | ~ | |
Fe2O3 | % | ≤1 | ≤0.6 | ≤1 | |
ʻO Sic | % | ≥90 | ≥80 | ≥85 | |
ʻIke ʻia ka Porosity | % | ≤18 | ≤18 | ≤18 | |
ʻAiʻi Nui | g/cm3 | ≥2.56 | ≥2.60 | ≥2.56 | |
Ka Ikaika Kui anu | Mpa | ≥80 | ≥100 | ≥70 | |
Refractoriness ma lalo o ka Haawe | ℃ | ≥1600 | ≥1620 | ≥1550 | |
Paʻa Paʻa Haʻalulu(Manawa/850) | ℃ | ≥40 | ≥40 | ≥35 | |
ʻO ka hoʻoili wela | w/m*k | ≥8 | ~ | ~ | |
Ka ikaika piko o ka wela maʻamau | Mpa | ≥25 | ≥30 | ≥25 | |
ʻO ka ikaika piʻi wela wela1250 ℃ * 1h | Mpa | ≥20 | ≥25 | ≥20 | |
ʻO ka wela lawelawe kiʻekiʻe loa | ℃ | 1400 | 1500 | 1400 |
ʻO ka silica carbide brick he kiʻekiʻe ka thermal conductivity, maikaʻi ke pale ʻana i ka ʻaʻahu, ke kūpaʻa haʻalulu wela a me ke kūpaʻa corrosion. No laila, loaʻa i ka silica carbon brick ka laulā o ka noi penei: