Polycrystalline Alumina Fiber ntau

Khoom Taw Qhia

Polycrystalline Alumina Bulk Fiber yog tsim los ntawm thoob ntiaj teb kev tshaj lij sol-gel txoj kev. Nws cov khoom tseem ceeb yog alumina (Al₂O₃) thiab silica (SiO₂). Los ntawm kev txiav cov sol chemistry thiab gelation kinetics, ib qho zoo sib xws thiab ruaj khov polycrystalline microstructure yog tsim. Piv nrog rau cov txheej txheem ib txwm ua, sol-gel spinning muab cov fiber ntau nruj dua - txoj kab uas hla tswj, qis impurity theem, thiab superior siab - qhov kub thiab txias, endowing bulk fiber nrog tshwj xeeb thermal stability, thermal conductivity tsawg, thiab muaj zog tshuaj inertness.

Cov khoom siv tiv thaiv kev ua haujlwm tas mus li ntawm 1500 degree, nthuav tawm qhov qis qis, thiab tiv thaiv thermal shock. Fibers yog micron - nplai thiab interlaced nrog ib tug nplua, uniform pore network uas thaiv cov conductive thiab convective tshav kub txaus, markedly tsa rwb thaiv tsev efficiency. Saj zawg zog, siab- tensile, thiab corrosion-resistant, fiber ntau yog zoo tagnrho rau thermal rwb thaiv tsev, sealing, thiab kev tiv thaiv nyob rau hauv aerospace, metallurgy, tshiab- khoom siv zog, thiab siab - kub kilns, muab ib tug tseem ceeb, siab -kawg tov rau lub zog txuag thiab txhim khu kev qha kev ntseeg tau.

UncoAqhov zoo

Zoo heev High -Temperature Stability

Ntev-lub sijhawm ua haujlwm kub txog li 1500℃nrog rau luv luv dua- lub sijhawm ua haujlwm ntev; tsis tshua muaj siab -kub shrinkage tus nqi (feem ntau<1.5%) and strong structural stability.

Kev ua tau zoo thermal rwb thaiv tsev

Nano- nplai polycrystalline fiber ntau cov qauv muaj txiaj ntsig zoo tiv thaiv kev kub nyhiab thiab convection; thermal conductivity yog qhov qis dua li cov khoom siv fiber ntau ceramic ntawm qhov kub siab (20-30% qis dua ntawm 1200 degree).

Lub teeb yuag, yoog raws, thiab yooj yim rau txheej txheem

Ua ke yooj yim nrog lub zog tensile, txhawb nqa ntawm - qhov chaw ua haujlwm xws li txiav, folding, thiab xaws, thiab ua tau zoo rau cov khoom siv yooj yim.

Tshuaj thiab Thermal Shock Resistance

High-purity Al₂O₃-SiO₂ system provides excellent resistance to acid and alkali corrosion; low thermal expansion coefficient enables it to withstand severe thermal cycling (>1000℃/ h) tsis tawg.

Kev nyab xeeb thiab Environmental Compatibility

Dawb los ntawm asbestos thiab crystalline silica hmoov av; ua raws li cov ntawv pov thawj kev noj qab haus huv thiab kev nyab xeeb thoob ntiaj teb (xws li EU 97/69/EC); tsis muaj pa taws emissions ntawm qhov kub thiab txias.

Lub neej ua haujlwm ntev thiab tus nqi -Kev ua tau zoo

High tsis kam rau roj ntws yaig; me me hmoov ntawm qhov kub thiab txias; siab tuab tuav tus nqi ntev dua - siv sijhawm; integrated zog-txuag los txo cov nqi khiav lag luam thiab tu.

Daim ntawv thov

High -Tsub Muaj Rauv

Hauv ob sab phlu rau steel / non{0}}ferrous metallurgy rauv, ceramic sintering roller kilns, rov qab rau iav melting tanks, rwb thaiv tsev txheej hauv petrochemical cracking furnaces.

Tshiab Zog thiab Advanced Manufacturing

Lithium roj teeb sintering kilns, photovoltaic polysilicon ingot casting rauv, siab - kub sealing rau hydrogen electrolyzers, rwb thaiv tsev rau semiconductor diffusion furnaces.

Aerospace thiab Defense

Thermal rwb thaiv tsev liner rau foob pob ua ntxaij cav, thermal tiv thaiv systems rau spacecraft, rwb thaiv tsev Cheebtsam rau hypersonic aircraft.

Energy Efficiency Retrofitting thiab Sealing

Zog-txuag kev hloov kho tshiab rau cov khoom siv hluav taws xob uas twb muaj lawm (txheej txheej thickness txo ntau dua los yog sib npaug li 30%), siab -kub yeeb nkab wrapping, saj zawg zog sealing rau valve flanges.

Cov cuab yeej tshwj xeeb tiv thaiv

High-kub kuaj qhov cub, ib leeg siv lead ua loj hlob rauv, rwb thaiv tsev rau kev kho cua sov fixtures, sau cov khaubncaws sab nraud povtseg rau hluav taws kub siab - kub tiv thaiv iav.

Khoom Parameter

Performance index ntawmPolycrystalline Alumina Fiber ntau
Yam khoom		Hom 72-F	Hom 72-M	Hom 85	Hom 95-M	Hom 95-N
Chemical composition Al₂O₃: SiO₂ (%)		72-75:25-28	72-75:25-28	85-88:12-15	＞95:＜5	＞95:＜5
Mineral Structure		δ-Al2O3 los yog -Al2O3	Mullite	Mullite+ -Al2O3	-Al2O3	-Al2O3
Kev ntsuas kub (degree)		1600	1600	1800	1600	1800
Molten Point (degree)		＞1800	＞1800	＞1800	＞2000	＞2000
Qhov ceev (g / cm3)		3.1	3.1	3.2	2.8	3.4
Nruab nrab Fiber Diameter (μm)		5.5-7.5	5.5-7.5	4-7	3-4	3-4
Cov ntsiab lus txhaj tshuaj (%)	Ntau dua lossis sib npaug li 45μm	0-2	0-2	0-2	0.2	0-2
impurity (%)		＜0.5	＜0.5	＜0.5	＜0.5	＜0.5
Monofilament tensile zog (MPa)		Ntau tshaj los yog sib npaug rau 1200	Ntau tshaj los yog sib npaug rau 1000	-	-	-
Monofilament tensile modulus (GPa)		Ntau dua los yog sib npaug rau 100	Ntau dua los yog sib npaug rau 100	-	-	-

KhoomDaim ntawv pov thawj

Cov neeg tuaj xyuas

Ntim Zaub

Yam khoom

FAQ 

Q1: Koj ua li cas kom tswj tau cov khoom zoo?

A1: SUNTHERM ua haujlwm raws li kev tswj hwm zoo uas saib xyuas txhua theem ntawm kev tsim khoom-los ntawm cov khoom siv raw khoom mus rau qhov kawg ntawm cov khoom siv lub cev. Txhua yam khoom raug kuaj nruj ua ntej ua zaub mov xa tuaj. Peb tseem tuaj yeem muab cov ntaub ntawv soj ntsuam zoo nrog rau kev xa khoom raws li kev thov.

Q2: Koj puas yog lub Hoobkas lossis tuam txhab lag luam?

A2: Peb yog lub Hoobkas. Zoo siab txais tos koj tuaj xyuas peb lub chaw ua haujlwm txhua lub sijhawm-Kuv yuav coj koj tus kheej los ntawm peb cov kab ntau lawm.

Q3: Dab tsi yog qhov sib txawv tseem ceeb ntawm polycrystalline alumina fiber ntau thiab cov ceramic fiber ntau?

A3: Cov Khoom Siv Khoom: Polycrystalline alumina fiber wool muaj cov qauv polycrystalline txuas ntxiv (nrog rau qhov ntau thiab tsawg ntawm nanoscale), qhov zoo tib yam ceramic fibers feem ntau yog amorphous lossis muaj microcrystalline iav theem.

Kev Tiv Thaiv Kev Kub Ntxhov: Nws tuaj yeem tiv taus ntev - siv sijhawm ntawm qhov kub ntawm 1500 degree, uas yog tshaj 200℃siab dua li cov ceramic fibers (feem ntau Tsawg dua lossis sib npaug li 1260℃).

Siab -Tsub Stability: Nws nthuav tawm qhov siab -kub shrinkage tus nqi ntawm<1.5% (compared to about 2–4% for ordinary ceramic fibers) and superior thermal shock resistance.

Q4: Puas yog cov khoom no tso cov khoom tsis zoo ntawm qhov kub thiab txias?

A4: Kev nyab xeeb thiab ib puag ncig tus phooj ywg: Nws yog tsim los ntawm siab - purity raw cov ntaub ntawv (Al₂O₃ + SiO₂ Ntau dua lossis sib npaug li 99%), tsis muaj cov khoom phom sij xws li asbestos lossis crystalline silica hmoov av, thiab ua raws li cov ntawv pov thawj thoob ntiaj teb xws li EU 97/69 / EC.

Tsis muaj Volatiles ntawm Qhov Kub Kub: Nws tso tawm tsis muaj pa taws lossis tsw ntxhiab ntawm qhov kub qis dua 1500 degree, ua rau nws haum rau siab -kev huv huv hauv cov haujlwm xws li semiconductors thiab lub zog tshiab.

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