Dab tsi yog qhov ntsuas kub ntawm Ceramic Fiber?

Dab tsi yog qhov ntsuas kub ntawm Ceramic Fiber?

Ceramic fiber ntau yog siv dav hauv siab - kub rwb thaiv tsev vim nws cov thermal conductivity tsawg, lub teeb yuag, thiab ua haujlwm rau thermal shock. Txawm li cas los xij, nws qhov kev ua tau zoo yog sib txuas nrog nws qhov ntsuas kub, uas txawv nyob ntawm seb muaj pes tsawg leeg, qib, thiab cov ntawv thov.

1. Hom kub ntau yam

Qhov kub txwv ntawm ceramic fiber tsis yog ib qho nqi ruaj khov. Nws nyob ntawm cov khoom siv qib:

Txheem ceramic fiber (Alumina-Silica, 1260℃qib)
Kev siv tsis tu ncua: 1000-1100 degree
Qhov siab tshaj plaws (short{0}}term): 1260 degree

High -purity ceramic fiber (1260-1400℃qib)
Kev siv tsis tu ncua: 1100-1200 degree
Qhov siab tshaj plaws: 1350-1400 degree

High -alumina ceramic fiber (1400-1600℃qib)
Kev siv tsis tu ncua: 1200-1350 degree
Qhov siab tshaj plaws: mus txog 1600 degree

Zirconia- muaj cov fiber ntau ceramic (1600℃+ qib)
Kev siv tsis tu ncua: 1350-1500 degree
Qhov siab tshaj plaws: 1600-1700 degree

Nyob rau hauv industrial xyaum, lubkev khiav hauj lwm kub tsis tu ncuayog qhov tseem ceeb tshaj qhov kev txwv siab tshaj, raws li qhov ntev ntawm - lub sij hawm raug txiav txim siab kav ntev.

2. Tej yam uas cuam tshuam rau qhov ntsuas kub

2.1 Tshuaj muaj pes tsawg leeg

Ntau dua alumina (Al₂O₃) lossis zirconia (ZrO₂) cov ntsiab lus ua rau muaj kev tiv thaiv rau qhov kub thiab txias. Standard fibers degrade sai dua thaum raug kub heev rau lub sij hawm ntev.

2.2 Lub sijhawm cua sov

Lub sij hawm luv luv - raug rau qhov kub siab tshaj plaws yog qhov ua tau, tab sis kev ua haujlwm tsis tu ncua nyob ze ntawm qhov txwv sab saud ua rau lub ntsws thiab poob ntawm kev ua haujlwm rwb thaiv tsev.

2.3 Cov Cuab Yeej Cuab Yeej

Oxidizing ib puag ncig:Feem ntau ruaj khov

Txo ib puag ncig:Tej zaum yuav txo tau kev ua haujlwm

Chemical exposure:Alkalis, acids, lossis hlau vapors tuaj yeem ua rau cov qauv fiber ntau

2.4 Mechanical Stress

Compression, vibration, los yog kev teeb tsa tsis raug tuaj yeem ua kom cov txheej txheem degradation ntawm qhov kub thiab txias.

3. Yuav ua li cas thaum qhov kev txwv dhau lawm?

Thaum ceramic fiber ua haujlwm siab tshaj nws qhov ntsuas kub:

Shrinkage tshwm simvim crystallization

Thermal conductivity nce, txo cov rwb thaiv tsev efficiency

Mechanical zog poob

Kev pab cuam lub neej luv luv

Hauv qhov xwm txheej hnyav, cov fiber ntau yuav poob nws cov qauv kev ncaj ncees thiab ua tsis tiav.

4. Xaiv cov qib zoo

Txhawm rau ua kom lub neej ua haujlwm ntev, nws raug nquahu kom:

Xaiv ib qib nrog aQhov ntsuas kub ntawm 100-200℃siab duatshaj qhov kev ua haujlwm tiag tiag

Xav txogkev ruaj ntseg marginsrau qhov kub thiab txias

Sib piv cov khoom rau lubib puag ncig kev lag luam tshwj xeeb(kilns, furnaces, boilers, thiab lwm yam)

5. Cov ntawv thov raws li qhov kub thiab txias

Hauv qab 1000 degree:Cov kab hluav taws xob, cov yeeb nkab rwb thaiv tsev

1000-1300 degree:Thaum tshav kub kub kho rauv, ceramic kilns

1300-1600 degree:Petrochemical reactors, siab -kub ua haujlwm

Xaus

Qhov kub txwv ntawm ceramic fiber nyob ntawm nws cov muaj pes tsawg leeg thiab kev ua haujlwm, feem ntau yog los ntawm1000℃txog 1600℃rau kev siv tas mus li, nrog siab dua luv - lub sij hawm tsis kam. Rau kev txhim kho kev ua tau zoo, xaiv cov qib kom raug thiab tswj cov npoo kev nyab xeeb yog qhov tseem ceeb. Kev xaiv cov khoom siv tsis yog tsuas yog txhim kho kev ua haujlwm ntawm rwb thaiv tsev, tab sis kuj tseem txuas ntxiv cov khoom siv lub neej thiab txo cov nqi tu.