High Precision Mingrui 99% Alumina Ceramic Ring
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- Supplier: Dongguan Mingrui Ceramic Technology Co. Ltd.
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Description
High Precision Mingrui 99% Alumina Ceramic Ring
We can offer alumina ceramics products with different proportions(95%-99.98% Al2O3).
Alumina ceramics have a excellent properties for chemical and physical stability.
Thermal properties: High heat resistance and high thermal conductivity...
Mechanical properties: High strength and high hardness...
99% Alumina ceramic is used to make high-temperature crucible, furnace tube and special wear-resistant materials, such as ceramic bearing, ceramic seal and water valve sheet, etc.
95% alumina ceramic is mainly used as corrosion-resistant and wear-resistant parts.Due to the addition of talc, the electrical properties and mechanical strength are improved, which can be sealed with molybdenum, niobium, tantalum and other metals, and some are used as electrical vacuum devices.
Alumina ceramics are currently classified into high-purity and ordinary types. High-purity alumina ceramics are ceramic materials with Al2O3 content above 99.9%; due to their sintering temperature as high as 1650-1990 ° C, the transmission wavelength is 1 ~ 6 & mu; m, generally made of molten glass to replace platinum crucible; Translucent and alkali-resistant metal corrosion are used as sodium lamps;
they can be used as integrated circuit substrates and high-frequency insulation materials in the electronics industry. Ordinary alumina ceramics are classified into 99 porcelain, 95 porcelain, 90 porcelain, 75 porcelain, etc. according to the content of Al2O3. Sometimes the Al2O3 content is 80%; or 75% is also classified as ordinary alumina ceramic series.
Alumina Ceramic Parameters:
| Ability | Unit | Alumina AL2O3 |
| Bulk density | g/cm3 | 3.85-3.93 |
| hardness | HRA≥ | 86 |
| Bending strength | Mpa≥ | 300 |
| Maximum use temperature | ℃ | 1500 |
| Linear expansion coefficient | ×10-6/℃ | 7.15-7.67 |
| Dielectric constant | εr(20℃,1MHz) | 9.21 |
| Dielectric loss | tanδ×10-4,1MHz | 2.5 |
| Volume resistivity | Ω·cm(100℃) | 9.2*1016 |
| Compressive strength | Mpa≥ | 2500 |
| Flexural strength | Mpa≥ | 200 |
| Elastic Modulus | Gpa | 300 |
| Poisson's ratio | 0.2 | |
| Thermal Conductivity | W/m·K(20℃) | 20 |
| DC breakdown strength | KV/mm | 43.7 |
| Tensile seal strength | Mpa | 104.4 |
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Can we offer a customized product?
We customize the products for different customers every day.We can customize according to your drawings and specific requirements, or we can provide you with the best special ceramic solution according to the understanding of your requirements.Our technical engineers are experienced in this area, ready to meet your needs and provide solutions.
How can we guarantee the quality?
We strictly adhere to the ISO certification standards of the quality system.From powder to finished product flow control and terminal control can ensure that the products are quality.Whether the delivered quantity is 10 or more than 10 million products, our quality inspection department strictly checks.
What's our delivery date?
We are located in changan town of dongguan, a city with rapid economic development. Time is life, and our delivery time is faster than most of our competitors.We will arrange overtime work if we meet customers who are in urgent need of products.
Do we provide source material with quality assurance?
All of our excellent high-purity raw materials are imported, and some of them are from the domestic market. The raw materials are strictly inspected and certified to meet the budget requirements of some customers.
What precision and roughness can our products achieve?
All of our excellent high-purity raw materials are imported, and some of them are from the domestic market. The raw materials are strictly inspected and certified to meet the budget requirements of some customers.
What precision and roughness can our products achieve?
The tolerance is determined by the size, shape, material and mode of production. With our high precision grinding equipment, the tolerance range available is 2 stainless m (i.e. 0.002 mm).The maximum roughness value can reach Ra 0.01 to 0.02.
Do we have export experience?
We have been exporting our products to overseas markets for many years.Working closely with packaging manufacturers, we are continuously improving special packaging materials and ways for you.We prefer sea or air transport for most of the shipments.Provide safe and fast delivery guarantee.
Mingrui can customize all kinds of non-standard ceramic structural parts and special-purpose ceramic parts according to customer use environment, drawing requirements and material performance!
Welcome to contact for the quotation, 2D/3D drawing will be perfect !
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