Dab tsi yog crucibles ua los ntawm?

Qhov muaj pes tsawg leeg ntawmroob ntooCov ntaub ntawv thiab lawv qhov tseem ceeb hauv Metallurgy

Crucible yog qhov tseem ceeb ntawm kev lag luam metallurgical, siv kom muaj thiab kub ntau yam hlau thiab alloys. Txawm li cas los xij, cov ntaub ntawv sib xyaw ntawm cov crucible cuam tshuam nws qhov kev ua tau zoo thiab lub neej nyob hauv ib puag ncig kub. Yog li, nkag siab cov muaj pes tsawg leeg ntawm cov khoom crucible yog qhov tseem ceeb rau kev xaiv cov crucible yog metallurgical. Kab lus no yuav tshawb txog cov khoom siv tseem ceeb ntawm cov cruciles thiab lawv qhov tseem ceeb hauv kev siv metallurgical.

1.Qhov crucible
Graphite crucible yog ib qho ntawm feem ntau hom. Vim nws qhov kub zoo heev thiab tshuaj ruaj khov, nws yog dav siv nyob rau hauv cov tsis-freals xws li txhuas, tooj liab, thiab kub. Cov khoom siv tseem ceeb ntawm graphite yog carbon, uas muaj cov hlau thermal zoo, tso cai hlau kom sov sai thiab tusyees, yog li txo cov sijhawm smelting. In addition, graphite crucible has good corrosion resistance and can withstand the erosion of most acidic and alkaline molten substances.

2.Silicon Carbide Crucible
Silicon carride crucailes yog qhov kev nyiam los ntawm kev lag luam metallurgical rau lawv cov tawv tawv zoo heev thiab oxidation tsis kam. Silicon carbide yog cov khoom siv nyuaj uas tuaj yeem tiv taus ntau qhov kub siab yam tsis muaj deforming. Piv nrog graphite crucibles, silicon carbide crucibles muaj lub neej kev pab cuam ntev dua thiab yog qhov tshwj xeeb rau melting hlau, hlau thiab lwm yam kub-kub. Tsis tas li ntawd, cov khoom lag luam caricon muaj zoo thermal poob siab ruaj khov, txo txoj kev pheej hmoo ntawm kev puas tsuaj rau cov crucible vim qhov ntsuas kub sai.

3. Cerramic Crucible
Ceramic crucailes feem ntau yog ua los ntawm cov ntaub ntawv ceramic xws li Alumina thiab Zirconia. Cov teeb meem no nthuav tawm cov tshuaj lom neeg zoo tshaj plaws thiab yog qhov tsim nyog rau kev ua cov hlau thiab alloys uas muaj kev xeb heev rau lwm cov ntaub ntawv. Lub siab melting taw tes ntawm ceramic crucibles ua rau lawv nyob ruaj khov nyob rau hauv ultra-siab mob thiab tau siv dav hauv chaw soj ntsuam thiab qee cov ntawv thov tshwj xeeb. Txawm li cas los xij, ceramic crucibles yog qhov loj me thiab xav tau ceev faj tuav thaum siv kom tsis txhob tawg vim yog siv tshuab cuam tshuam.

4. Hlau Crucible
Hlau crucibles muaj feem ntau siv nyob rau hauv cov kev ua haujlwm hlau loj smelting, xws li cov pob zeb. Steel Crucibles feem ntau yog ua los ntawm cov cua sov-resistant steel alloys thiab muaj cov tshuab ua kom zoo nkauj zog thiab kub tsis kam. Txawm hais tias cov crucibles tsis yog li thermally makents li graphite crucibles, lawv tuaj yeem tiv taus cov haujlwm tseem ceeb, lawv tuaj yeem thauj cov haujlwm tseem ceeb uas yuav tsum tau thauj khoom thiab thauj khoom lossis hloov chaw.

5. Lwm yam ntaub ntawv
Ntxiv nrog rau cov ntaub ntawv crucible uas tau hais los saum toj no, tseem muaj qee cov ntaub ntawv tshwj xeeb uas siv rau cov hom phiaj tshwj xeeb. Piv txwv li, tungsten crucibles feem ntau siv nyob rau hauv qhov kev sim siab kub vim lawv qhov tseem ceeb heev melting point thiab corrosion tsis kam. Titanium crucibles yog siv rau smelt tshwj xeeb alloys vim tias lawv tsis hnov ​​mob nrog ntau hlau.

Hauv kev xaus
Cov khoom muaj pes tsawg leeg ntawm cov ntoo khaub lig tsis yog txiav txim siab nws cov ruaj khov thiab tsis tu ncua nyob rau hauv ib puag ncig kub thiab muaj kev nyab xeeb thiab kev nyab xeeb ntawm cov txheej txheem smelting. Yog li ntawd, thaum xaiv cov khoom ntoo khaub zig, cov khoom siv tshuaj lom neeg, thermal conductivies, tshuab lub neej yuav tsum raug txiav txim siab raws li cov kev cai thov. Cruciles ntawm cov khoom sib txawv ntawm cov haujlwm sib txawv ua si ib qho kev lag luam metallurgical, muab kev txhim khu kev qha hlau ua kom tau zoo thiab muaj kev nyab xeeb.