Dab tsi yog qhov txawv ntawm silicon carbide crucibles thiab graphite crucibles

Dab tsi yog qhov txawv ntawm silicon carbide crucibles thiab graphite crucibles

Qhov txawv 1: Cov khoom sib txawv

Graphite crucible, tseem hu ua graphite av nplaum crucible, feem ntau yog tsim los ntawm ntuj flake graphite ua cov khoom tseem ceeb thiab av nplaum ua cov nplaum.

Silicon carbide crucible: feem ntau yog tsim los ntawm ntuj flake graphite thiab silicon carbide, nrog kub-kub resin raws li cov nplaum.

Qhov txawv 2: Cov txheej txheem sib txawv

Graphite Crucible: Artificially spun, mechanically pressed los ntawm me crucibles. Tom qab tsim, nws yog sintered nyob rau hauv ib tug kiln ntawm 1000 degrees Celsius thiab coated nrog anti-corrosion glaze los yog noo-pov thawj xim kom ua tiav crucible.

Silicon carbide crucible: Nws yog tsim los ntawm kev siv cov khoom siv siab tshaj isostatic pressing thiab ib tug scientific formula rau nias. (Nias 150 megapascals).

Qhov sib txawv peb: Qhov sib txawv ntawm kev ua haujlwm

Qhov ceev ntawm graphite crucible yog 1.3kgcm2, thiab silicon carbide crucible yog 1.7-2.6kgmm2. Lub neej kev pab cuam ntawm graphite crucibles yog 3-5 lub sij hawm luv dua li ntawm silicon carbide crucibles. Qhov kub sib txawv ntawm sab hauv thiab sab nraud ntawm lub crucible yog 35 degrees rau graphite crucibles thiab 2-5 degrees rau silicon carbide crucibles. Muaj qhov sib txawv tseem ceeb hauv cov kua qaub, alkali, thiab corrosion kuj, thiab kev txuag hluav taws xob sib txawv ntawm li 50%.

Qhov sib txawv plaub: Cov nqi sib txawv

Tus nqi sib txawv ntawm graphite crucibles thiab silicon carbide crucibles yog li peb zaug.

1. Graphite crucibles muaj cov thermal conductivity zoo, tab sis lawv nquag oxidation thiab muaj kev puas tsuaj loj, thaum silicon carbide crucibles muaj qhov ntim loj dua thiab siv lub neej ntev dua piv rau graphite crucibles;

2. Lub silicon carbide crucible yog ib lub tais zoo li lub thawv nrog rau hauv qab ceramic. Thaum cov khoom yuav tsum tau rhuab nrog high kub, ib tug crucible yuav tsum tau siv. Vim tias nws tuaj yeem tiv taus qhov kub thiab txias zoo dua li iav iav;

3. Thaum siv cov silicon carbide crucible, cov khoom siv melted feem ntau tsis ntim ntau dhau los tiv thaiv cov khoom cua sov los ntawm kev dhia tawm thiab tso cai rau huab cua nkag mus thiab tawm mus rau qhov ua tau oxidation tshwm sim;

4. Silicon carbide crucibles, vim lawv cov hauv qab me me, feem ntau yuav tsum tau muab tso rau ntawm ib daim duab peb sab av nkos kom sov ncaj qha los ntawm hluav taws;

5. Lub silicon carbide crucible tuaj yeem muab tso ncaj qha los yog diagonally ntawm ib lub phaj hlau, thiab tuaj yeem muab tso rau ntawm nws tus kheej raws li kev xav tau;

6. Tom qab cua sov, tsis txhob tso cov silicon carbide crucible tam sim ntawd rau ntawm lub rooj zaum hlau txias kom tsis txhob tawg vim qhov txias txias;

7. Silicon carbide crucibles yuav tsum tsis txhob muab tso rau tam sim ntawd rau ntawm cov ntoo tabletops kom tsis txhob scalding los yog ua rau hluav taws kub;

8. Silicon carbide crucibles muaj cov yam ntxwv ntawm qhov ntim siab ceev, kub tsis kam, hloov kub ceev, acid thiab alkali corrosion tsis kam, siab kub zog, thiab siab oxidation kuj piv rau graphite crucibles. Lawv lub neej ua haujlwm yog 3-5 npaug ntawm cov av nplaum graphite crucibles

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