Silicon Carbide Cib

Cov khoom siv hluav taws xob ua los ntawm silicon carbide ua cov khoom siv tseem ceeb. Cov ntsiab lus ntawm silicon carbide yog 72% ~ 99%. Feem ntau, cov xim dub silicon carbide (SiC cov ntsiab lus ntau dua 96%) yog siv los ua cov khoom siv raw, nrog binder (lossis tsis muaj binder), thiab nws yog npaj los ntawm batching, mixing, molding thiab firing. Lub ntsiab siv lead ua theem yog silicon carbide. Cov khoom tseem ceeb yog oxide-bonded silicon carbide cib, carbon-bonded silicon carbide firebricks, nitride-bonded silicon carbide hluav taws cib, tus kheej-bonded silicon carbide hluav taws cib, recrystallized silicon carbide hluav taws cib thiab semi-silicon carbide firebricks. Nws yog ib qho kev ua tau zoo refractory nrog cov yam ntxwv ntawm kev hnav tsis kam, zoo yaig tsis kam, siab kub lub zog, zoo thermal shock stability, siab thermal conductivity thiab thermal expansion coefficient me me.

(1) Clay-bonded silicon carbide cib
Clay-bonded silicon carbide refractory bricks yog cov khoom refractory raug rho tawm haujlwm nrog silicon carbide ua cov khoom tseem ceeb thiab av nplaum ua cov ntawv khi. Nws yog tus cwj pwm los ntawm cov thermal conductivity, me me coefficient ntawm thermal expansion, zoo thermal shock kuj thiab hnav tsis kam, thiab yog qhov ntxov tshaj plaws tsim ib qho ntawm silicon carbide hluav taws cib.
Dub silicon carbide yog siv los ua raw khoom rau av nplaum-bonded silicon carbide cib, thiab nws cov tshuaj muaj pes tsawg leeg: SiC 98.0%, dawb C 0.5%, Fe 0.2 %, dawb SiO2 0.6%, cov av nplaum mos thiab cov kua txiv hmab txiv ntoo pov tseg nrog cov khoom sib khi zoo yog siv los ua cov khoom sib khi. Yav dhau los, qhov kev faib ua feem ntawm cov av nplaum tau loj dua, feem ntau yog 10% ~ 15%, thiab tam sim no ntau dua 3% av nplaum thiab 5% cov kua nplaum pov tseg. Lub thermal conductivity ntawm silicon carbide hluav taws cib nrog me me ntawm cov av nplaum yog 3 ~ 4 npaug siab dua li ntawm silicon carbide hluav taws cib ua ke nrog ntau cov av nplaum, thiab cov load softening kub thiab slag kuj tseem siab dua. Kev tsim cov txheej txheem ntawm cov av nplaum-bonded silicon carbide cib nrog 3% av nplaum yog los tsim cov ntxhib, nruab nrab thiab nplua SiC raws li cov khoom gradation uas tuaj yeem tau txais qhov siab tshaj plaws. Tom qab sib tov qhuav, ntxiv av nplaum, qhuav sib tov rau 3 feeb, thiab tom qab ntawd ntxiv 4% ntawm cov kua txiv hmab txiv ntoo (qhov ntom 1.26 ~ 1.289 / cm3) rau kev sib tov. Cov av nkos yog kwv yees li 1.5%, thiab tom qab 12h ntawm cov khoom daig, cov av nkos dhau los ntawm 4 hli npo thiab tsim nrog lub cib xovxwm. Qhov ceev ntawm bricks yog 2.5 ~ 2.79 / cm3. Nws yog qhuav rau 2 ~ 4 hnub nyob rau hauv tej yam ntuj tso kom qhuav, thiab raug rho tawm haujlwm nyob rau hauv lub qhov cub ntawm qhov kub ntawm 1400 degree.
Cov khoom siv yog siv los ua cov rooj tog zaum ceramic (tso daim hlau, cov hlua khi, sagger, thiab lwm yam), muffle hoods rau muffle furnaces, furnace lining bricks for aluminium refining furnaces, retort tanks for zinc distillation furnaces, cement rotary kiln coolers, etc.

(2) Silicon nitride ua ke nrog silicon carbide cib
Silicon nitride ua ke nrog silicon carbide cib yog cov khoom siv refractory ua los ntawm SiC thiab Si hmoov ua raw khoom thiab raug rho tawm los ntawm nitriding. Nws yog tus cwj pwm los ntawm Si3N4 raws li lub sijhawm khi. Si3N4 yog ib yam tshiab tseem ceeb ntawm cov khoom siv refractory uas muaj nyob nruab nrab ntawm SiC nplej nyob rau hauv koob zoo li los yog fibrous crystals.
Siv lub hauv paus ntsiab lus ntawm cov tshuaj tiv thaiv sintering, SiC lub cev uas muaj cov hmoov silicon yog sintered los ntawm nitriding cov tshuaj tiv thaiv, thiab cov txheej txheem firing tiav nyob rau hauv lub qhov cub kaw nrog nitrogen gas thiab tswj tau yooj yim. Qhov kub, siab thiab huab cua nyob rau hauv lub cub tawg yuav tsum nruj me ntsis tswj. Lub ntsiab txheej txheem ginseng

Cim npe nrov: Tuam Tshoj silicon carbide cib manufacturers, lwm tus neeg, Hoobkas