Kev tsim technology ntawm graphite-silicon carbide crucible

Raw khoom muaj pes tsawg leeg of graphite-silicon carbide cruciblesyog ib qho ua tib zoo sib xyaw ua ke ntawm ntau lub ntsiab lus, txhua qhov ua rau cov khoom tshwj xeeb ntawm cov khoom kawg. Ua los ntawm flake graphite, silicon carbide, elemental silicon hmoov, boron carbide hmoov thiab av nplaum, qhov hnyav feem pua ​​​​ntawm cov khoom siv raw ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab cov khoom ntawm lub crucible.

Kev tsim cov txheej txheem ntawm graphite-silicon carbide crucibles yog cov kauj ruam uas ua tib zoo xyuas kom zoo thiab kev ncaj ncees ntawm cov khoom kawg. Cov ntaub ntawv raw yog thawj zaug sib xyaw ua ke los tsim ib qho kev tsim nyog slurry, uas tom qab ntawd muab tso rau hauv pwm thiab nias rau hauv cov duab siv cov xovxwm isostatic. Lub resulting dawb paug yog ces qhuav thiab coated nrog ib tug tiv thaiv glaze, uas yog ces oxidized thiab melted rau hauv ib lub iav glaze ntawm ib tug liab qab firing txheej txheem. Tom qab ntawd cov khoom tiav raug tshuaj xyuas thiab pom tau tias npaj rau kev siv.

Dab tsi yog qhov tshwj xeeb ntawm cov txheej txheem tsim khoom no yog nws txoj kev yooj yim thiab kev ua tau zoo ntawm cov khoom crucibles. Lub crucible muaj kev ntxhib los mos, siab ceev, tsis muaj porosity, ceev thermal conductivity thiab muaj zog corrosion kuj. Cov khoom zoo no ua rau nws zoo tagnrho rau ntau yam kev siv, tshwj xeeb tshaj yog nyob rau hauv kev lag luam uas muaj qhov kub thiab txias thiab cov tshuaj hnyav heev.

Ib qho tseem ceeb ntawm cov txheej txheem tsim khoom yog siv cov av nplaum ua cov ntawv khi. Qhov kev xaiv no ua haujlwm rau ob lub hom phiaj vim nws tsis tsuas yog pab txhawb rau qhov kev xav tau ntawm lub crucible tab sis kuj txo cov kev txhawj xeeb ib puag ncig. Cov txheej txheem no siv cov av nplaum ua cov ntawv khi kom tsis txhob decomposition thiab tso tawm cov khoom phom sij xws li phenolic resin lossis tar, uas yuav ua rau muaj kev phom sij rau cov pa taws thiab plua plav thaum lub sijhawm tua hluav taws thiab ua paug rau ib puag ncig.

Hauv cov ntsiab lus, cov khoom siv raw khoom thiab cov txheej txheem tsim khoom ntawm graphite silicon carbide crucible qhia txog kev sib haum xeeb ntawm kev tshawb fawb thiab thev naus laus zis thiab kev paub txog ib puag ncig. Cov khoom uas tau tshwm sim yog ib qho pov thawj rau kev txawj ntse ntawm cov txheej txheem tsim khoom niaj hnub no, muab cov kev daws teeb meem txhim khu kev qha thiab ruaj khov rau kev lag luam uas xav tau kev ua haujlwm siab crucibles.