High Purity Alumina Ceramic Insulator Tube , Ceramic Wire
Insulators For Heater Elements
Product Description
Specification of the ceramic bushing
1. Material options: different purity alumina (from 95% to 99.8%),
zirconia, Silicon carbide, steatite, mullite
2. Forming methods: Extrusion, Dry pressed, Hot pressed, Ceramic
Injection molding, ISO pressed
3. Dimension capability: Min. the inner diameter can be 1mm, Max.
the outer diameter can be 800mm
4. Tolerance: outer diameter can be 0.005mm, the inner diameter can
be 0.01mm, the overall length can be 0.01mm
5. Surface treatment: External and internal surface to be polished,
glazed or metallized
6. Secondary processing: CNC machining, lapping, grinding,
precision cutting and so on
Main characteristics of alumina ceramic bushing
1. Outstanding wear resistance, over 276 times in comparison with
stainless steel
2. Great mechanical properties, hardness, compressive and flexural
strength are much higher stainless steel
3. Exceptional corrosion resistance, it can withstand various
strong acid and alkali, like HF, H2SO4
4. Extraordinary electrical insulation, it always us in many high
voltage, high-current application
Description of alumina ceramic bushing
Aluminum Oxide (Alumina, Al2O3) is the most commonly used industry
ceramic material due to its versatile property characteristics and
cost-effective advantage. As with the purity increases, both wear
resistance and corrosion resistance also increases, so alumina are
grouped together based on purity levels, including 75% alumina, 85%
alumina, 90% alumina, 95% alumina, 99% alumina, 99.5% alumina,
99.8% alumina, 99.9% alumina.
Alumina ceramic tubes generally used as a kind of standard
protection part, so our facility has many selections of stocks. Our
vast, readily-available inventory allows us to supply our
customer’s ceramic tube needs immediately, even for hard-to-find or
specialty products. Aluminas are used in a variety of
general-purpose applications, and their grade is chosen based on
the application environment. Additionally, different purity alumina
can be formulated in our factory if needed for more demand
applications
Zirconia Ceramic Parameters
| Item | Unit | zirconia |
| Density | g/cm3 | 6.05 |
| Water absorption | % | 0 |
| Coefficient of thermal expansion | 10-6 /k | 10.5 |
| Young's elastic modulus | Gpa | 210 |
| Poisson-Pine ratio | / | 0.3 |
| Hardness (HV) | MPa | 1200 |
| Bending strength (room temperature) | MPa | 950 |
| Bending Strength (700 ℃) | MPa | 210 |
| Compressive strength (room temperature) | MPa | 2000 |
| Fracture toughness | Mpa.m1/2 | 10 |
| Thermal conductivity (room temperature) | W/m.k | 2 |
| Specific resistivity (room temperature) | Ω.mm2/m | ＞1015 |
| Maximum usage temperature | ℃ | 750 |
| Corrosion resistance of acid and alkali resistance | / | strength |
Company Introduction:
We ( Dongguan Mingrui Ceramic Technology Co., Ltd ) are a
professional manufacturer specialized
in R&D, manufacturing and selling customized all kinds of high
precision zirconia and alumina ceramic parts, ceramic thread tube . Our main products include ceramic rod , ceramic tube, ceramic
plunger, ceramic valve, ceramic plate, ceramic shaft and bearing ,
ceramic nozzle etc , which are mainly used in industrial fields of
Machinery, Petrochemical oil and gas, Valves, Automotive, Food
Processing, Fluid Handling, Process Control, Thermal Processing,
Aerospace, Defense, Eletronic and Electrical, Textile, Mechanical,
Engineering, Mineral Processing, etc.
We have a full service include mold design and development ,
ceramic forming , precision machining
and precision detection technology. We have achieved great
successes in particular requirements
which is based on cooperating with Tsinghua University and getting
rich experience by our professional technical engineer teams . Our
factory have an unique technical called mirror polishing which
improve
our products more smooth , bright than other competitors.
Delivery:
Custom OEM will be shipped within 15 days after determining the
parameters
The samples will be shipped within 3 days
Quick Delivery Via Fedex,DHL,UPS,TNT Etc.
Support customer to designate shipping company
For more informations (the price,delivery time,moq etc)about the
ceramic plates, please contact us or email:admin@cerampart.com
CEO: Admin deng
Dongguan Mingrui Ceramic Tech. Co. Ltd.
Add: No.21 Chuangxing Rd., 2nd Industrial Zone of Shangsha,
Chang'an town, Dongguan city, Guangdong, China 523867
Email: admin@cerampart.com
FAQ
1. Monthly Capacity: 50,000-60,000 pcs;
2. Material: OEM or as per your suggestion;
3. Lead time: about 7-20 days, pls confirm the quantities required;
4. Incoterm: FOB, CFR, CIF;
5. Delivery Cost: It is determinated by the destination port;
6. Payment Term: PayPal; T/T; L/C.
7. Shipment: by sea, by air, by courier, by post, etc.
