Siab -Kev ua tau zoo Alumina Ceramic Sheath Tubes rau Industrial Thermal Sensing
Product Overview & Technical Identification
Alumina ceramic sheath tubes muab cov khoom siv vaj tse thiab tshuaj tiv thaiv rau cov thermocouples thiab cov ntsuas kub ua haujlwm hauv qhov hnyav thermal. Engineered los ntawm siab -purity polycrystalline aluminium oxide, cov hlab no tswj cov txheej txheem kev ncaj ncees, hluav taws xob rwb thaiv tsev, thiab tshuaj inertness ntawm qhov kub thiab txias mus txog 1800 degree.
Cov ntaub ntawv tseem ceeb:95% Al2O3 (Standard Industrial) thiab 99% Al2O3 (High Purity / Semiconductor Qib).
Kev tsim khoom:Isostatic nias, plam casting, thiab precision siab -kub sintering.
Standard Diameter:OD los ntawm 3mm mus rau 50mm; kev cai ntev mus txog 2000mm.
Dimensional kam rau ua:Hauv av sab nraud diameters ua tiav qhov ua tau zoo nyob rau hauv +/- 0.10 hli rau nruj- sib dhos OEM cov cai.
Technical Specification Matrix
|
Khoom |
95% Alumina Qib |
99% Alumina Qib |
Txoj Kev Xeem / Txuj |
|
Alumina Purity (Al2O3) |
>= 95.0% |
>= 99.3% |
ICP-OES Spectrometry |
|
Max Service Kub |
1500 degree |
1800 degree |
Kev txwv tsis tu ncua |
|
Kev ceev ceev |
>3.65 g / cm3 |
>3.89 g / cm3 |
Txoj Kev Archimedes (ASTM C373) |
|
Pom tseeb Porosity |
< 0.1% |
0.0% (Gas{1}} nruj) |
Vacuum Impregnation Test |
|
Flexural Strength (Room Temp) |
280 MPa |
350 MPa |
4-Point Bending (ASTM C1161) |
|
Thermal conductivity (500 degree) |
20 W/(m*K) |
25 W/(m*K) |
Laser Flash Method (ASTM E1461) |
|
Dielectric zog |
>10 kV / hli |
>15 kV / hli |
ASTM D 149 Cov |
Kev Xaiv Cov Khoom Siv & Cov Ntawv Qhia Engineering
Xaiv cov qib alumina kom raug tiv thaiv kev ua tsis tiav ntxov ntxov, cov khoom sib kis, thiab tsis tau npaj tseg.
95% Alumina Sheath Tubes
- Yam ntxwv: Balanced mechanical zog thiab nruab nrab thermal shock kuj. Muaj iav -phase sintering pab.
- Cov ntawv thov zoo tshaj plaws: Kev siv hluav taws xob dav dav- kho cov cua sov, cov kab sib txuas, cov khoom siv hluav taws xob, thiab qis- mus rau - nruab nrab kub tso pa roj saib xyuas (< 1500°C).
- Kev txwv: Silica thiab alkali impurities nyob rau hauv cov ntaub ntawv tuaj yeem volatilize ntawm ultra- kub kub thiab hnov mob nrog platinum thermocouple xov hlau, ua rau calibration drift dhau mus txuas ntxiv.
99% Alumina Sheath Tubes
- Yam ntxwv: Cov tshuaj purity siab, xoom qhib porosity, thiab superior hluav taws xob tiv taus ntawm qhov kub siab. Tshem tawm silica-induced hlau kis kab mob.
- Kev siv zoo tshaj plaws: Cov khoom siv hluav taws xob zoo tshaj plaws thermocouple tiv thaiv (Hom B, R, S), lub tshuab nqus tsev vacuum, txo cov cua sov, thiab cov khoom siv semiconductor ua haujlwm txog li 1800 degree.
- Kev Ceeb Toom: Kev ua siab ntev rau thermal shock; preheating raws tu qauv yuav tsum tau thaum lub sij hawm pib lub cub tawg.
Manufacturing & Quality Control
Kev ntseeg siab tau pib nrog kev npaj hmoov nyoos thiab kev tswj xyuas thermal profile nruj hauv -tsev.
Green Lub cev tsim:Utilizing dry-bag isostatic pressing to ensure uniform density distribution along long tubes, preventing warping and micro-cracks during high-temperature shrinkage.
High -Tsub Sintering:Fired in gas-fired or high-vacuum electric tunnel kilns at temperatures exceeding 1650℃to achieve full densification and controlled grain growth.
Kev soj ntsuam nruj nruj:
- Dye Penetrant Inspection: Ua nyob rau hauv ntau lawm batch kom pom micro{0}}fissures.
- Helium Leak Testing: Ua rau 99% purity raj los xyuas kom meej cov pa roj impermeability nyob rau hauv siab sib txawv.
- Dimensional Verification: Laser micrometer scanning thoob plaws qhov ntev kom ntseeg tau qhov ncaj thiab phab ntsa thickness uniformity.
Cov ntawv thov kev lag luam
Kev kho cua sov & Metallurgy:Nruam galvanizing kab, nqus carburizing rauv, thiab molten hlau kub dipping hlab.
Kev tsim hluav taws xob:Boiler tso pa roj kub profileing thiab gasification reactor xyuas.
Advanced Materials:Crystal loj hlob furnaces (Sapphire/Silicon) thiab siab -kub tube rauv liners.
Kev Tsim Nyog Muaj Peev Xwm & Kev Tsim Nyog Muaj Peev Xwm
Muaj Peev Xwm Ntau Lawm:12 automated isostatic presses thiab 6 nruam qhov kilns yielding tshaj 50,000 raj txhua hli.
Customization Parameters:Custom wall thicknesses down to 0.8 mm, kaw-ib -end configurations, flanged designs, and dual-bore internal geometries.
Traceability:Raw khoom batch naj npawb thiab sintering cav kaw ib qhov ntau lawm, muab nrog Material Test Reports (MTR) raws li kev thov.
Cov lus nug nquag
Q: Kuv yuav ua li cas tiv thaiv thermal shock tawg thaum tso lub raj rau hauv qhov cub kub?
A: Preheat lub raj alumina maj mam los ntawm qhov chaw nyob ze ntawm lub qhov cub nkag lossis qhov chaw nres nkoj rau 15 mus rau 30 feeb kom tso cai rau qhov kub thiab txias kom maj mam nce mus txog qhov kawg ua ntej qhov kawg tso rau hauv thaj tsam tshaj 1000 degree.
Q: Dab tsi yog qhov siab tshaj plaws ua haujlwm kub qhov sib txawv rau 99% alumina?
A: Thaum 99% alumina tiv taus mus txog 1800℃nyob rau hauv khov kho-lub xeev tej yam kev mob, thermal gradients tshaj 150℃ib feeb yuav ua rau muaj kev nyuaj siab puas ntsoog hauv zos. Kev tswj xyuas thermal maj mam yog qhov yuav tsum tau ua.
Q: Koj puas tuaj yeem tsim cov kev cai ntev nrog nruj sab hauv thiab sab nraud txoj kab uas hla?
A: Yog. Kev sib tsoo ua haujlwm ntawm cov raj sintered ua tiav txoj kab uas hla nruj (+/- 0.05} hli) thiab meej concentricity, tiv thaiv kev tshem tawm cov teeb meem thaum lub sij hawm nkag.
Q: Koj lub sij hawm ua tus qauv yog dab tsi rau kev cai kos duab vs. Tshuag ntau thiab tsawg?
A: Standard catalog sizes nkoj hauv 3 mus rau 5 hnub ua hauj lwm. Kev cai configurations xav tau kev teeb tsa lossis kev sib tsoo tshwj xeeb feem ntau xav tau 3 mus rau 4 lub lis piam.
Engineering Resource & RFQ Xa
[Download Alumina Ceramic Sheath Tubes Technical Data Sheet (PDF)] (Qhov zoo rau kev tshuaj xyuas sab hauv engineering thiab pawg neeg kos npe-tawm)
Txhawm rau ntsuas koj cov kev xav tau ntawm daim ntawv thov, thov muab lub cev thiab kev ua haujlwm tshwj xeeb hauv koj qhov kev nug:
Ua haujlwm kub thiab cua:(xws li oxidizing, txo, nqus, reactive gases).
Qhov Loj:Outer Diameter (OD), Inner Diameter (ID), thiab Tag Nrho Ntev.
Configuration:Kaw ib kawg / qhib ob qhov kawg, ncaj los yog flanged.
Cim npe nrov: Tuam Tshoj alumina ceramic sheath tubes manufacturers, lwm tus neeg, Hoobkas
