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High precision wear resistance large diameter round alumina ceramic plate for Mechanical disc
Alumina is also known as aluminum oxide (chemical formula: Al2O3). Aluminum oxide ceramic plate is a ceramic material with alumina (Al2O3) as the main body, which is used for thick film integrated circuits.Alumina ceramics have good conductivity, mechanical strength and high temperature resistance. It should be noted that ultrasonic washing is required. Alumina ceramic plate is a kind of widely used ceramics, because of its superior performance, the application in the field of modern industrial society has been more and more widely, to meet the needs of daily use and special performance.
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High precision wear resistance large diameter round alumina ceramic plate for Mechanical disc
Alumina ceramic disc high strength fine wear-resistant ceramic tray ceramic disc,Ceramics for high frequency insulation devices,The temperature can be 1500℃ and 99 porcelain alumina disc, the temperature can be 1800℃,The alumina discs produced by us have the advantages of high density, abrasion resistance, high temperature and humidity resistance, good acid and alkali corrosion resistance and so on.The alumina disc can be finished with a tolerance of +/- 0.02mm.Sizes can be customized. 99.9% alumina raw material, dry pressing isostatic pressing process secondary molding, high temperature sintering, precision grinding processing. Made in 200 diameters? 700mm large size fine alumina ceramic round plate, with large size, high precision, high purity, uniform density characteristics, but also has excellent acid and alkali resistance, wear resistance, voltage resistance and other physical and chemical properties.
Product descritption:
Alumina ceramic plate Information:
| Product | alumina ceramic plate |
| Material | alumina |
| Purity | 99% |
| Color | light yellow |
| Shape | Round |
| Density | 3.5g/cm3 |
Physical characteristics:
| Item | Unit | 99 Al2O3 | |
| Physical Characteristics | Bulk density | g/cm3 | 3.9 |
| Water absorption | % | 0 | |
| Mechanical Characteristics | Flexural strength | Mpa | 360 |
| Hardness Vickers | Gpa | 15.6 | |
| Elastic modulus | Gpa | 370 | |
| Poisson’s ratio | - | 0.23 | |
| Thermal Characteristics | Linear expansion coefficient | (20-5000°C) 10-6/0°C | 8 |
| Thermal conductivity | w/(m·k) | 32 | |
| Specific Heat | ×10-3J/(kg·K) | 0.9 | |
| Electrical Characteristics | Dielectric constant (1MHZ | - | 9.9 |
| Dielectric loss angle | ×10-4 | 1 | |
| Dielectric strength | ×10-6V/m | 15 |
Feature of alumina ceramics:
Alumina ceramics have good conductivity, corrosion resistance, mechanical strength and high temperature resistance
1. High purity: High purity alumina ceramics is a highly competitive and stable material with a purity of more than 99%, which is an ideal high purity material.
2. Wear resistance: high purity alumina ceramics have extremely high hardness and wear resistance, and can be used in extreme environments such as high speed, high temperature and high pressure.
3. Good insulation: high purity alumina ceramics have good insulation properties, suitable for high voltage, high frequency and other occasions.
4. Good chemical stability: high purity alumina ceramics have good corrosion resistance to most chemical substances.
5. Good thermal stability: The high temperature resistance of high purity alumina ceramics is very excellent, and can withstand the temperature of up to 1750℃.
6. Biological inertia: high purity alumina ceramics are non-toxic and harmless to biological tissues, and have good biological inertia.
Advantages of alumina ceramics:
1. the hardness is determined by the Shanghai Institute of Silicate of the Chinese Academy of Sciences, the Rockwell hardness is HRA80-90, the hardness is second only to diamond, far more than the wear resistance of wear-resistant steel and stainless steel,
2.the wear resistance is excellent measured by the Powder Metallurgy Institute of Central South University, its wear resistance is equivalent to 266 times of manganese steel, 171.5 times of high chromium cast iron, according to our more than ten years Customer tracking survey, under the same working conditions, can extend the service life of the equipment at least ten times more. 3. Light weight Its density is 3.5g/cm3, which is only half of steel, which can greatly reduce the load of equipment.
Application of alumina ceramic disc:
1.Mechanical: high bending strength, excellent wear resistance, widely used in tools, ball valves, grinding wheels, ceramic nails, bearings and so on.
2.Electronics, power: high purity alumina ceramics high frequency dielectric loss is small, excellent insulation performance, widely used in transparent alumina ceramics.
3.Medical aspects: good biocompatibility, mechanical properties and chemical stability.
Company Information：
FAQ
Why us?
* Professional manufacturer since 1997.
* Strict quality control on production process and tolerance.
* Free samples available
* Customized production based on your drawing or specification
* On-time delivery and reliable support and service
* Inventory available for quick shipment
* We keep confidentiality of all the drawings and business information between us.
Are you a trading company or a manufacturer?
* We are a manufaturer.
Can you provide the free samples?
* Yes,we can offer free sample if we have it in stock,but the courier fee is to be collected.
Do you accept customized production based our specification?
* Yes,we offer OEM and ODM service. Just send us your drawing if you have it. If you don’t have a drawing, just tell us your idea, we will work out the drawing for you.
What's the delivery time?
* 7 working days for standard products 30 days for customized products.
What is the MOQ?
* No limit to the quantity. We can offer the best proposal and solutions according to your condition.
What is the payment terms you accept?
* T/T,LC,Western Union,moneygram are acceptable.
How to deal with the faulty?
* Firstly, Our product are produced in strict quality control system and the defective rate will be less than 2%.
If there are problems with the product, we will provide free replacement.