Customized 95% Alumina Ceramic Sleeve Insulator for EV fuses
The specification of the ceramic tubes
1. Material: Alumina, steatite optional
2. Forming methods: Dry pressed, Hot pressed, ISO pressed
3. Dimensional capability: ID with min.1mm, OD with max .200mm
4. Dimensional tolerance: OD with 0.05mm, ID with 0.10mm
5. Surface treatment: polished, glazed available
6. Secondary processing: fine grinding, threaded
7. Types: Round tubes, square tubes, tubes with multiple holes
Main characteristics of alumina ceramic tubes
1. High-temperature resistance, up to 2000ºC in the vacuum atmosphere
2. Outstanding wear resistance, over 276 times in comparison with traditional stainless steel
3. Great mechanical properties, offers diamond-like hardness to be HRA85
4. Exceptional corrosion resistance, it can withstand various strong acids and alkalis, like HCL, H2SO4
5. Extraordinary electrical insulation, is always used in various high-voltage, high-current application
6. High-precision dimensions with ideal fitting relationship
The Description of Alumina Ceramic Tubes
Alumina(Aluminum Oxide, Al2O3) is the most extensively used advanced ceramic material due to its outstanding property characteristics and cost-effective advantage. As the purity increases, both wear resistance and corrosion resistance also increase, so alumina is grouped 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 are 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 customers' 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
Remark:
We are dealing with a variety of advanced ceramic tubes in a selection of raw materials, mainly including alumina, zirconia, silicon nitride, aluminum nitride, silicon carbide, and so on.
Technical Datasheet of advanced ceramic materials
| General |
Properties |
Unit |
99.5% Al2o3 |
99% Al2O3 |
96% Al2O3 |
Steatite |
YTPZ
ZrO2 |
SiC |
| Mechanical |
Volume Density |
g/cm 3 |
≥3.90 |
≥3.85 |
≥3.65 |
≥2.70 |
≥6.0 |
≥3.13 |
| Hardness |
HRA |
1700 |
1700 |
1500 |
800 |
1300 |
2500 |
| Porosity |
% |
0 |
0 |
0 |
0 |
0 |
0 |
| Compressive Strength |
Mpa |
≥2240 |
≥2240 |
≥2000 |
≥551 |
≥1990 |
≥ 2200 |
| Bending Strength |
Mpa |
≥379 |
≥338 |
≥320 |
≥190 |
≥1200 |
≥400 |
| Elastic Modulus |
Gpa |
370 |
350 |
303 |
110 |
210 |
400 |
| Thermal |
Thermal Conductivity |
W/m.K |
30 |
29 |
24 |
2.5 |
3 |
120~150 |
Coefficient of Thermal
Expansion |
1*10 -6 m/k |
6.5~8.0 |
6.2~8.0 |
5.0~8.0 |
7.7~8.0 |
8.0~9.5 |
4 |
| Electrical |
Insulation Breakdown |
KV/mm |
19 |
18 |
18 |
10 |
17 |
- |
| Volume Resistivity |
Ohm.Cm |
>1*1014 |
>1*1014 |
>1*1014 |
>1*1013 |
>1*1011 |
5*10 6 |
Our advantage and strength
1. Own in-house comprehensive types of manufacturing equipment
2. With over 12 years of manufacturing experience in OEM, ODM
3. The rigorous and complete quality control system, including IQC, IPQC, OQC, and QA, also CPK, AQL
4. Support special and custom-made needs, including prototyping and R&D cases, or serial massive demands.
Q1: Is it available to produce customized products?
A: We support custom alumina ceramic insulators for EV fuses as per different dimensions, designs, and surface treatments.
Q2.When can I get the price after sending the inquiry?
A: We regularly quote within 24 hours after we get your inquiry. If you are in urgent need of getting the price,
Please call us or tell us in your email so that we can proceed with your inquiry as a priority.
Q3.How long is the whole procedure being worked out?
A: After you place an order, the manufacturing time is about 25 working days.
Q4.How to ensure quality in your factory?
A: Strict quality control will be done in the production line, including IQC, IPQC, QA, OQC,
Also, both CKP and AQL are regularly used in production.
Q5. Are you a factory or trading company?
A: We are a professional manufacturer. We do believe you can find an amazing solutions and a trustworthy partner.
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