Crucible thiab sagger

Crucible yog lub lauj kaub ceramic siv los tuav cov hlau rau melting nyob rau hauv lub cub tawg. Qhov no yog qhov siab zoo, kev lag luam qib crucible siv los ntawm kev ua lag luam foundry kev lag luam.

Crucible yog xav tau los tiv thaiv qhov sov sov ntsib hauv meltatures hlau. Cov khoom crucible yuav tsum muaj ntau dua melting taw tes tshaj li tias ntawm cov hlau tau melted thiab nws yuav tsum muaj lub zog zoo txawm tias thaum kub kub.

Kev kub siab nyob hauv silicon carbide crucible yog qhov zoo tshaj plaws Kiln rooj tog kom muaj cov khoom siv ntau yam, thiab yog siv ntau yam tshuaj lom neeg, thiab kev tiv thaiv ib puag ncig thiab lwm thaj chaw. Silicon carbide yog lub ntsiab siv tshuaj tivthaiv ntawm silicon carbide germanium, uas muaj cov yam ntxwv nyuaj. Lub hardness ntawm silicon carbide crucible yog nruab nrab ntawm corundum thiab pob zeb diamond, nws lub zog hloov siab dua li ntawm kev hloov pauv kub, nrog nws txuag lub zog ntau.

Rbsic / Siic Crucible thiab Sagger yog qhov sib sib zog nqus phiab ceramin tej hub Vim tias nws yog superior rau cov iav nyob rau hauv cov nqe lus ntawm tshav kub ua hauj, nws yog zoo siv thaum cov khoom yog rhuab los ntawm hluav taws. Sagger yog ib qho ntawm cov rooj tog zaum tseem ceeb rau hlawv plooj (porcelain. Txhua hom ntawm cov phiaj hniav yuav tsum muab tso rau hauv cov khoom noj ua ntej thiab tom qab ntawd mus rau hauv lub Kiln rau ci.

Silicon Carbide Melting Crucible yog qhov tseem ceeb ntawm cov twj siv tshuaj, nws yog ib lub thawv uas tuaj yeem siv rau melting, huv, cua sov thiab kev tawm tsam. Yog li ntau tus qauv thiab ntau thiab tsawg yog suav nrog; Nws tsis muaj kev txwv los ntawm kev tsim khoom, kom muaj nuj nqis lossis cov ntaub ntawv.

Silicon carbide melting Crucible yog ib lub tais tob dua ceramic ntim uas tau siv dav hauv kev lag luam metallurgy. Thaum cov khib nyiab yog rhuab los ntawm hluav taws loj, yuav tsum muaj ntim khoom. Nws yog ib qho tsim nyog los siv tus ntoo khaublig thaum muaj cua sov vim tias nws tuaj yeem tiv thaiv ntau dua iav thiab tseem xyuas kom cov kuab paug los ntawm kev ua qias tuaj. Cov Silicon Carbide Melting Crucible tsis tuaj yeem tso tawm los ntawm cov khoom noj molten ua rau cov khoom siv cua sov tuaj yeem rhaub thiab txau. Txwv tsis pub, nws tseem yog ib qho tseem ceeb kom huab cua ua kom muaj kev ncig xyuas cov pa rau cov oxidation.

Daim ntawv ceeb toom:
1. Cia kom qhuav thiab huv. Yuav tsum tau ua kom sov li 500 ℃ maj mam ua ntej siv. Khaws txhua qhov chaw nyob hauv qhov chaw qhuav. Ya raws tuaj yeem ua rau tus ntoo khaub zig rau cov cua sov. Yog tias nws tau nyob rau hauv cia rau ib lub sijhawm nws yog qhov zoo tshaj plaws kom rov ua qhov tempering. Silicon carride crucailes yog qhov tsawg kawg nkaus hom yuav nqus cov dej hauv kev cia thiab feem ntau tsis tas yuav ua ntej siv. Nws yog ib lub tswv yim zoo kom tua hluav taws kub tshiab rau lub tshav kub liab ua ntej nws thawj zaug siv tsav tsheb thiab nyuaj.
2. Muab cov ntaub ntawv tso rau hauv cov kab ke silicon melting crucible raws li nws ntim thiab khaws ib qho chaw kom raug kom tsis txhob thermal expansion pob txha. Cov khoom yuav tsum tau muab tso rau hauv cov ntoo ntoo loj heev. Tsis txhob "pob" Crucible, raws li cov khoom yuav nthuav ntawm cua sov thiab tuaj yeem tawg cov ceramic. Thaum cov khoom siv no tau yaj mus rau hauv "heel", ua tib zoo thauj cov khoom siv rau hauv cov pa nyom. (Ceeb Toom: Yog tias muaj kev ya raws yog nyob rau ntawm cov khoom siv tshiab uas muaj cov khoom tawg yuav tshwm sim). Ib zaug ntxiv, tsis txhob kaw hauv cov hlau. Khaws cov khoom pub rau cov txiv hmab rau hauv cov yaj kom txog rau thaum cov khoom yuav tsum tau melted.
3. Txhua tus crucibles yuav tsum tau daws nrog cov nplaig kom zoo (Lifting cuab yeej). Tsis huv tus Phuav tuaj yeem ua rau kev puas tsuaj lossis ua tiav tsis ua tiav ntawm Crucible ntawm lub sijhawm tsis zoo.
4. Zam kev muaj zog oxidized hluav taws kub hnyiab ncaj qha rau tus ntoo khaub zig. Nws yuav ua rau lub sijhawm siv vim yog cov khoom siv oxidation.
5. Tsis txhob tso cov cua sov silicon carbide melting crucible ntawm ib tug txias hlau lossis ntoo saum npoo av tam sim ntawd. Lub cev khaub thuas sai yuav ua rau tawg lossis tawg thiab ntoo npoo av yuav ua rau hluav taws. Thov cia nws nyob ntawm refractory cib lossis phaj thiab cia nws txias cia ib txwm.