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.
