Lub 99.99% siab-purity isostatic graphite txhawb lub nplhaib yog ib qho tseem ceeb hauv cov thermal teb ntawm photovoltaic thiab semiconductor ib leeg -crystal furnaces, ua ob qho tib si load- bearing thiab cleanroom element. Nrog rau 6 tus yam ntxwv tseem ceeb-ultra- siab purity, isotropy, siab -kub tsis kam, tsis tshua muaj thermal expansion, tshuaj inertness, thiab precision machining- nws ua kom ib leeg -crystal purity, yield, thiab thermal teb stability. Cov xwm txheej tseem ceeb xws li photovoltaic CZ furnaces, semiconductor silicon wafers, thiab SiC ib leeg -crystal furnaces.
Monocrystalline silicon graphite txhawb lub nplhaib (99.99% / 4N siab- purity isostatic graphite), yog cov txheej txheem tseem ceeb ntawm lub tshav kub ntawm kev rub ncaj qha (CZ) ib leeg siv lead ua rauv. Nws yog siv nyob rau hauv lub tshuab nqus tsev / argon huab cua ntawm qhov kub ntawm 1400 mus rau 1600℃kom ruaj khov rau graphite crucible, qhia raj, rwb thaiv tsev npog thiab cua sov caij, dais axial loads, xyuas kom meej concentricity thiab seem stability ntawm lub thermal teb, tiv thaiv impurity contamination ntawm silicon rods ib leeg, thiab lav lub purity ntawm silicon.
Khoom siv: High-purity isostatic dag graphite (Isostatic Graphite), nrog cov ntsiab lus carbon ntawm ** Ntau dua lossis sib npaug li 99.99% (4N) **, tag nrho impurities Tsawg dua lossis sib npaug li 100 ppm, cov hlau tsis huv tseem ceeb (Fe, Cu, Al, Ca, thiab lwm yam) Tsawg dua lossis sib npaug li 1 ppm.
Core muaj nuj nqi: Load- bearing + positioning + heat insulation + anti- pollution. Nws yog ib qho tseem ceeb tseem ceeb tivthaiv rau photovoltaic / semiconductor ib leeg siv lead ua rub.
Cov ntsiab lus ntxaws (cov txiaj ntsig tseem ceeb)
Ultra- siab purity, tshem tawm silicon paug (qhov tseem ceeb tshaj plaws)
99.99% (4N) siab purity, nrog tsis tshua muaj impurities. Nws tsis volatilize los yog tso cov hlau impurities ntawm qhov kub thiab txias, tsis txhob oxygen, carbon, thiab hlau impurity defects nyob rau hauv silicon ib tug crystals, ncaj qha kev txhim kho cov siv lead ua ib yield thiab roj teeb conversion efficiency. Ordinary graphite muaj impurities siab, uas tuaj yeem ua rau cov pob dub ntawm silicon wafer, to, thiab txo qis hauv cov neeg nqa khoom tsawg lub neej.
Cov ntsiab lus ntxaws (cov txiaj ntsig tseem ceeb)
Isostatic nias molding, isotropic thiab uniform qauv
Txias isostatic nias (CIP) molding, nrog kev ua haujlwm zoo ib yam nyob rau hauv tag nrho peb qhov ntev, tsis muaj kev taw qhia, thiab qhov sib txawv ntom ntom; Nws tsis warp, deform, los yog tawg ntawm qhov kub thiab txias, kom ntseeg tau concentricity ntawm thermal teb, thiab tsis txhob eccentricity, tawg npoo, thiab dislocations thaum lub sij hawm ib tug siv lead ua rub txheej txheem.
Cov ntsiab lus ntxaws (cov txiaj ntsig tseem ceeb)
Kev kub siab ua haujlwm, muaj zog thermal stability, thiab tiv thaiv thermal shock.
Nws tuaj yeem ua haujlwm ntev ntawm 1500-1600℃hauv lub tshuab nqus tsev / argon cua, thiab lub sijhawm luv luv ntawm 2200 degree; lub siab kub lub zog tsis txo qis tab sis nce me ntsis; Lub thermal expansion coefficient yog tsawg heev, thiab nws tsis tawg, tsis poob, thiab tsis deform nyob rau hauv khaus thermal shock thaum lub sij hawm ceev cua sov thiab txias.
Siv rau kev lag luam thiab cov xwm txheej
1) Kev lag luam photovoltaic (feem ntau cov tub ntxhais)
Monocrystalline silicon CZ rub lub cub tawg (12/16/18/20/22/28 ntiv tes): Txhawb graphite crucible, hloov raj, rwb thaiv tsev lub tog raj kheej, cua sov caij, tshav kub rwb thaiv tsev npo; Ua kom ruaj khov thermal teb, purity ntawm silicon rods, tawm los, thiab sib xws.
Haum rau N-type / P-hom monocrystalline silicon rods thiab siab -efficiency photovoltaic silicon wafers ntau lawm.
Siv rau kev lag luam thiab cov xwm txheej
2) Kev lag luam semiconductor
Semiconductor-qib monocrystalline silicon rauv (12 ntiv tes thiab siab dua): Ua silicon wafers rau kev sib koom ua ke, xav tau 5N (99.999%) ultra- siab purity, nrog impurities tswj mus rau ppm / ppb qib.
Silicon epitaxy, PECVD, lub tshuab nqus tsev kub kho thermal teb cov khoom txhawb nqa.
Muab cov kev daws teeb meem rau kev txhawb nqa rings ntawm ib leeg siv lead ua rauv taws
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