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Silicon Nitride Bonded Silicon Carbide Cib

Silicon nitride bonded silicon carbide refractory cib yog ib hom refractory cib tshwj xeeb raug rho tawm haujlwm hauv cov cua nitrogen. Nws muaj lub zog muaj zog heev, zoo hnav tsis kam, zoo spalling kuj, zoo acid-puag kuj thiab slag corrosion kuj. Nws yog feem ntau siv rau hauv ob sab phlu masonry thiab zawv zawg rail cib ntawm blast furnace.

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Ces

Tsham tam sim no

Hauj lwm lawm

1, Kev piav qhia ntawm Silicon Nitride Bonded Silicon Carbide Cib:

Cov khoom no yog ua los ntawm silicon carbide thiab silicon nitride ua cov ntaub ntawv tseem ceeb, uas yog tsim los ntawm high tonnage cib xovxwm thiab raug rho tawm haujlwm nyob rau hauv lub qhov cub kub uas muaj nitrogen gas.

Cov khoom muaj ib qho kev ntxhib los mos thiab Mohs hardness ntawm 9. Lub zog yog siab heev. Lub zog yuav luag zoo ib yam li ntawm chav tsev kub ntawm 1200 degree ~ 1400 degree. Qhov siab tshaj plaws ua haujlwm kub ntawm cov khoom tuaj yeem tshaj 1650 degree.

Piv nrog rau cov khoom siv silicon carbide, cov khoom muaj qis thermal expansion coefficient, thermal conductivity ntau dua, thermal stress tsawg, thermal shock kuj zoo heev thiab kev pab lub neej ntev. Cov khoom kuj muaj zog creep kuj, corrosion kuj, oxidation kuj thiab lwm yam ntxwv.

Cov khoom siv dav siv rau hauv ob sab phlu ntawm lub qhov cub tawg lub cev thiab electrolytic aluminium tank, Ceramic kiln, swb rail cib

2, Index:

Yam khoom
SIC %	72
SI 3N4%	22
Fe 2O3%	0.3
Cov porosity%	17
Qhov ceev g / cm3	2.65
Compressive zog Mpa	150
Flexural zog Mpa	45
Kub kub flexural zog 1400 degree,Mpa	50
Thermal conductivity 1000 degree, w / mk	17
Refractoriness nyob rau hauv load degree	1700

3, Kev paub txog cov khoom siv: silicon nitride ua ke nrog cov khoom siv silicon carbide yog ua los ntawm silicon nitride raws li lub sijhawm sib txuas, silicon hmoov thiab silicon carbide hais sib xyaw thiab tom qab ntawd nias rau hauv cov duab, sintered ntawm 1400 degree hauv nitrogen cua. Cov khoom feem ntau yog tsim los ntawm cov txheej txheem sintering. Thaum lub sij hawm sintering txheej txheem, nitriding cov tshuaj tiv thaiv tshwm sim ntawm ntug ntawm cov khoom ua ntej. Nrog cov tshuaj tiv thaiv, qhov densification ntawm ntug ntawm cov khoom nce, thiab tom qab ntawd cov theem eutectic nyob rau hauv nruab nrab ntawm cov khoom nce ntxiv kom tiav cov sintering. Cov khoom muaj qhov ntom ntom ntom ntom, lub zog siab, zoo tshaj plaws thermal poob siab, zoo heev thermal conductivity, cov tshuaj lom neeg siab, sodium fluoride thiab calcium fluoride. Nws yog ib yam ntawm cov khoom siv kub ntawm cov khoom siv nrog kev loj hlob zeem muag

Cov khoom yuav tsis raug oxidized hauv qab 1200 degree, thiab ib tug tiv thaiv zaj duab xis yuav tsim nyob rau ntawm 1200-1600 degree, uas yuav tiv thaiv tau oxidation ntxiv, thiab yuav tsis raug infiltrated los yog corroded los ntawm txhuas, txhuas, tin, nyiaj, tooj dag thiab lwm yam molten hlau los yog alloys. Cov khoom yog tsuas yog siv nyob rau hauv blast furnace tuyere.

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5, Cov lus pom zoo ntawm cov khoom siv tau zoo, cov khoom tau raug xa tawm mus rau Kaus Lim Qab Teb, Australia, Kenya,

6, Cov chaw tsim khoom yog cov chaw tsim khoom lag luam thiab tuaj yeem muab cov khoom lag luam ua tiav cov ntaub ntawv ntsuam xyuas lossis cov ntaub ntawv xeem thib peb.

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