Silicon Carbide Crucible: Qhov kev xaiv zoo tshaj plaws rau hlau smelting

Hauv kev lag luam hlau ua thiab metallurgy,silicon carbide cruciblestau tshwm sim los ua cov cuab yeej tseem ceeb, qhuas rau lawv cov kev ua tau zoo thiab ua haujlwm ntev. Kev taw qhia ntawm silicon carbide crucibles tau txhim kho qhov ua tau zoo thiab zoo ntawm cov txheej txheem hlau smelting. Cov crucibles no muaj npe nrov rau lawv cov khoom siv tshwj xeeb, uas ua rau lawv tuaj yeem tiv taus qhov kub thiab txias thiab tiv thaiv cov tshuaj tiv thaiv corrosion, ua kom muaj kev ruaj ntseg txawm tias nyob hauv qhov chaw huab cua.

Silicon carbide crucibles yog tsim los ntawm high-purity silicon carbide khoom, paub txog nws tshwj xeeb hardness thiab thermal conductivity. Cov khoom no xyuas kom meej tias lub crucible tswj nws cov qauv kev ncaj ncees txawm tias nyob rau hauv cov cua kub kub ntawm cov hlau smelting. Tsis zoo li cov tsoos graphite crucibles, silicon carbide crucibles khav theeb lub neej ntev dua. Lawv tsis deform yooj yim thaum siv thiab tiv taus cov tshuaj tiv thaiv nrog cov hlau molten, uas yog ib qho tseem ceeb rau kev tswj cov purity ntawm smelted hlau.

Ib qho ntawm cov yam ntxwv tseem ceeb ntawm silicon carbide crucibles yog lawv tsis kam mus rau qhov kub thiab txias. Lawv tuaj yeem tiv taus qhov kev xav tau nruj ntawm cov txheej txheem hlau smelting, uas feem ntau muaj qhov kub thiab txias mus txog ntau txhiab degrees Celsius. Tsis tas li ntawd, cov crucibles no muaj qhov ua tau zoo heev rau cov tshuaj tiv thaiv corrosion, ua rau lawv nyob twj ywm tsis muaj kev cuam tshuam los ntawm qhov hnyav tshuaj ib puag ncig feem ntau ntsib thaum lub sij hawm hlau smelting. Qhov kev tiv thaiv no ua kom ntseeg tau tias cov crucibles txuas ntxiv ua tau zoo tshaj lub sijhawm ntev.

Lwm qhov txiaj ntsig tseem ceeb ntawm silicon carbide crucibles yog lawv cov coefficient tsawg ntawm thermal expansion. Cov yam ntxwv no txo ​​qhov kev pheej hmoo ntawm kev tawg thaum lub sij hawm cua sov thiab cua txias, ib qho tshwm sim hauv cov hlau smelting thiab casting txheej txheem. Lub peev xwm los tiv thaiv cov thermal stresses ua rau silicon carbide crucibles tshwj xeeb tshaj yog tsim nyog rau kev thov xws li hlau casting thiab alloy manufacturing. Txawm hais tias nyob rau hauv lub chaw soj nstuam rau kev tshawb fawb lub hom phiaj los yog nyob rau hauv loj-scale industrial ntau lawm, silicon carbide crucibles tsis tu ncua raws li ntau yam kev xav tau ntawm kev ua hlau ua haujlwm.

Qhov ntau yam thiab kev ntseeg tau ntawm silicon carbide crucibles tau coj mus rau lawv txoj kev saws me nyuam thoob plaws ntau yam kev siv metallurgical. Hauv kev tshawb fawb hauv chav kuaj, lawv muab kev tswj xyuas meej txog cov txheej txheem melting, ua rau cov kws tshawb fawb los ua cov kev sim nrog qhov tseeb. Hauv cov chaw tsim khoom, lawv cov kav ntev thiab kev ua tau zoo pab txhawb kev tsim khoom ntau dua thiab txo cov nqi ua haujlwm.

Hauv cov ntsiab lus,silicon carbide crucibles tau maj mam hloov cov tsoos crucibles, dhau los ua qhov kev xaiv zoo tshaj plaws hauv kev lag luam metallurgical niaj hnub no vim lawv qhov kev ua tau zoo heev thiab kev siv dav dav. Raws li thev naus laus zis txuas ntxiv mus, nws tau cia siab tias silicon carbide crucibles yuav ua lub luag haujlwm tseem ceeb dua nyob rau yav tom ntej ntawm kev lag luam hlau. Lawv lub peev xwm ua rau muaj kev kub ntxhov, ua ke nrog lawv lub neej ntev thiab kev ntseeg tau, ua rau lawv yog qhov kev xaiv zoo tshaj plaws rau kev siv hlau smelting.