Silicon Carbide ntawm Superior Level

Txij li thaum lub xyoo pua puv 19 silicon carbide tau ua cov khoom tseem ceeb rau cov ntawv xuab zeb, sib tsoo lub log, thiab cov cuab yeej txiav.

Xa kev nug

Hauj lwm lawm

Khoom Description

Rau kev siv tshwj xeeb, silicon carbide yog tsim los ntawm ntau cov txheej txheem siab heev. Reaction-bonded silicon carbide yog tsim los ntawm kev sib xyaw SiC hmoov nrog cov hmoov carbon thiab cov yas, ua cov sib tov rau hauv cov duab uas xav tau, hlawv tawm ntawm cov yas, thiab tom qab ntawd infusing cov khoom raug rho tawm haujlwm nrog gaseous lossis molten silicon, uas reacts nrog cov pa roj carbon. ntxiv SiC.

Kom txog rau thaum lub invention ntawm boron carbide nyob rau hauv 1929, silicon carbide yog lub hardest synthetic khoom paub. Nws muaj Mohs hardness ntsuam xyuas ntawm 9, mus txog ntawm pob zeb diamond. Ntxiv rau qhov hardness, silicon carbide crystals muaj cov yam ntxwv tawg uas ua rau lawv muaj txiaj ntsig zoo hauv kev sib tsoo log thiab hauv cov ntawv abrasive thiab cov khoom siv ntaub. Nws cov thermal conductivity siab, ua ke nrog nws qhov kub thiab txias zog, tsis tshua muaj thermal expansion, thiab tsis kam mus rau tshuaj lom neeg cov tshuaj tiv thaiv, ua rau silicon carbide muaj nuj nqis nyob rau hauv lub tsim ntawm high-temperature bricks thiab lwm yam refractories. Nws kuj tau muab faib ua semiconductor, muaj hluav taws xob conductivity ntawm cov hlau thiab cov ntaub ntawv insulating. Cov cuab yeej no, ua ke nrog nws cov khoom siv thermal, ua rau SiC muaj kev cog lus hloov pauv rau cov khoom siv hluav taws xob ib txwm muaj xws li silicon hauv cov ntawv thov kub.

sc3

Khoom parameters

Kev sib xyaw
Fe₂O₃	FC	SiC
SIB 98.5	Tsawg dua lossis sib npaug rau 0.6%	Tsawg dua lossis sib npaug rau 0.2%	Ntau dua lossis sib npaug li 98.5%
SIB 97	Tsawg dua lossis sib npaug li 1.2%	Tsawg dua lossis sib npaug rau 0.3%	Ntau dua lossis sib npaug li 97%
SIB 95	Tsawg dua lossis sib npaug li 1.2%	Tsawg dua lossis sib npaug rau 0.6%	Ntau dua lossis sib npaug li 95%
SIB 90	Tsawg dua lossis sib npaug li 1.2%	Tsawg dua lossis sib npaug rau 1.0%	Ntau dua lossis sib npaug li 90%
SIB 88	Tsawg dua lossis sib npaug li 1.5%	Tsawg dua lossis sib npaug rau 4.0%	Ntau dua lossis sib npaug li 88%

Cov nqi sau saum toj no tuaj yeem hloov kho thaum thov.

tuam txhab profile

Peb yog cov chaw tsim khoom thoob ntiaj teb tshwj xeeb hauv cov khoom siv metallurgical & cov khoom siv refractory. Peb lub Hoobkas npog thaj tsam ntawm 30, 000 square metres nrog tag nrho cov khoom siv niaj hnub tsim. Dab tsi ntxiv, peb cov khoom txhua xyoo ntau tshaj 150, 000 tons. Txais tos rau peb lub vev xaib kom paub ntau ntxiv thiab tiv tauj peb nrog kev txaus siab. Pom yog kev ntseeg. Txais tos rau peb lub tuam txhab rau kev mus ntsib.