Silicate carbon cib belongs rau nruab nrab refractory, uas tiv taus yaig ntawm cov kua qaub thiab alkali slags, cov kuab tshuaj, thiab lwm yam tshuaj corrosion. Silicon carbide muaj cov cim ntawm lub zog siab, zoo tiv thaiv oxidation, thiab tsis muaj kev hloov pauv ntawm qhov kub thiab txias. Nyob rau hauv tag nrho cov ntaub ntawv raw ntawm cov uas tsis yog-oxide refractory bricks, slilica carbon cib yog qhov zoo tshaj plaws kev lag luam thiab siv dav hauv qee qhov chaw. uas tuaj yeem siv rau hauv kev lag luam sib txawv, xws li kev lag luam pob zeb, kev lag luam iav, kev lag luam hlau, kev lag luam luam ntawv, thiab kev lag luam teeb. Tsis tas li ntawd, Silica carbon cib rau kev muag khoom muaj kev ua tau zoo heev ntawm kev tiv thaiv ib puag ncig tsis zoo, xws li kub kub conductivity, zoo abrasive tsis kam, zoo thermal shock resistance, muaj zog tiv taus acid thiab alkali slag yaig thiab qis kub expansion coefficient thiab lwm yam.
Silicate carbide block raw cov ntaub ntawv yog silicon carbide, txog 72% -99%. Silicon carbide tseem hu ua moissanite, corundum xuab zeb lossis refractory xuab zeb. uas yog tsim los ntawm quartz xuab zeb, roj av coke los yog thee tar, thiab cov khoom ntoo, yog tsim los ntawm kub kub smelting nyob rau hauv lub cub hluav taws xob kuj.
Silicon carbide cib yog tsim los ntawm silicon carbide, cov khoom siv raw ua ke hauv lub tshuab hluav taws xob tiv thaiv ntawm qhov kub siab tshaj 2500 ° C, los ntawm cov tshuaj tiv thaiv ntawm silica nrog carbon. Silcate carbon bricks muaj thermal conductivity kaum npaug ntawm fireclay refractories, zoo corrosion thiab thermal shock resistance, thiab tuaj yeem tsim rau hauv cov duab nyuaj. Silica cabon cib tuaj yeem tiv taus slag nres thiab nplaim hluav taws.
Silicon carbide refractory cib tuaj yeem muab faib ua av nplaum sib koom ua ke silicon carbide cib, Si3N4 bonded silicon carbide cib, Sialon bonded silicon carbide cib, β-SiC bonded silicon carbide cib, Si2ON2 bonded silicon carbide cib thiab recrystal silicon carbide.
Silicon Carbide Cib | |||||
Cov khoom | Chav tsev | SiO2 Bonded Silicon Carbide Cib | Azoxty-cornpounds Bonded Silicon Carbide Cib | Mullite Bonded Silicon Carbide Cib | |
Al2O3 | % | ~ | ~ | ≥10 | |
SiO 2 | % | ≤ 8 | ~ | ~ | |
Fe2O 3 | % | ≤1 | ≤0.6 | ≤1 | |
Sic | % | ≥90 | ≥80 | ≥85 | |
Pom tseeb Porosity | % | ≤18 | ≤18 | ≤18 | |
Kev ceev ceev | g/cm3 | ≥2.56 | ≥2.60 | ≥2.56 | |
Txias Crushing zog | Mpa | ≥80 | ≥100 | ≥70 | |
Refractoriness nyob rau hauv Load | ℃ | ≥1600 | ≥1620 | ≥1550 | |
Thermal Shock Stability(Lub sijhawm / 850) | ℃ | ≥40 | ≥40 | ≥35 | |
Thermal conductivity | w/m* k | ≥8 | ~ | ~ | |
Ib txwm kub khoov zog | Mpa | ≥ 25 | ≥30 | ≥ 25 | |
Kub kub dabtsi yog khoov zog 1250 ℃ * 1h | Mpa | ≥ 20 | ≥ 25 | ≥ 20 | |
Qhov Kev Pab Cuam Siab Tshaj Plaws | ℃ | 1400 | 1500 | 1400 |
Silica carbide cib muaj cov thermal conductivity, zoo hnav tsis kam, thermal shock kuj thiab corrosion kuj. Yog li silica carbon bricks muaj ntau yam kev thov raws li hauv qab no: