Alumina cylinders areurnished after being constructed from high purity alumina as the primary raw material, through a range of complex and refined procedures. They boast remarkable chemical stability, and can hold similar physical and chemical properties in a multitude of harsh chemical conditions, and are virtually non-reactive with other materials, giving them widespread utility within the chemical industry.
With rich technological strength and innovative concept, Shandong Qishuai Wear Resistant Equipment Co., Ltd. is committed to providing excellent products for our customers.
Purity, density and hardness of our products are much higher than the average level of the whole industry. We use advanced manufacturing technology and quality control system to ensure that our products can always present customers with uniform quality and reliable performance, and can meet the strict requirements of all kinds of Alumina Cylinders application.
Irrespective of what conditions you work in, whether it’s high temperature and high pressure or other specific environment requiring high precision and high performance, our products can still work perfectly and offer you an amazing experience.
|
Parameters |
numerical value |
|
Hardness (Mohs scale) |
Grade 9 |
|
density |
3.8g/cm³ - 3.9g/cm³ |
|
Coefficient of thermal expansion |
8.1×10⁻⁶/℃ |
|
Melting point |
2072℃ |
|
Volume resistivity |
10¹⁴Ω・cm - 10¹⁶Ω・cm |
|
Flexural strength |
≥350MPa |
|
Compressive strength |
≥2000MPa |
|
Chemical stability |
With the exception of hydrofluoric acid and concentrated phosphoric acid, it reacts with almost no other chemical substances. |
Outstanding wear resistance
High-temperature resistance
Chemical corrosion resistance
High precision and dimensional stability
Shandong Qishuai Wear Resistant Equipment Co., Ltd uses the most advanced production methods in the world to ensure that every alumina cylinder reaches the highest quality standards. Our production process is strictly regulated and controlled at every stage of the manufacturing process from raw material to finished product inspection.
1. Raw Material Selection: Premium-grade alumina powder with a purity exceeding 99% is meticulously selected, featuring minimal impurities to guarantee exceptional product performance and stability.
2. Additive Blending: Additives blending: According to the requirements of the application, add the appropriate amount of fluxing agents and other additives to the raw materials to improve the performance of the product. These additives are accurately weighed and well blended.
3. Moulding: Using isostatic pressing technology, the raw materials that have been well blended are uniformly pressed under high pressure to obtain green bodies with accurate dimensions and shapes. This method of casting ensures that the green body has uniform density and reduces the internal defects, which forms the basis for the subsequent sintering process.
4. High-Temperature Sintering: Place the green body in a high temperature furnace and sinter it in a furnace. The temperature is strictly controlled between 1600 ℃ and 1700 ℃. In this temperature range, the alumina powder is completely crystallized, and the particles adhere together to become high strength and high density alumina ceramics. High temperature sintering is the most important link in the whole production process. We use advanced temperature control system and advanced atmospheric control system to ensure the stability of the sintering process.
5. Machining: After sintering, the alumina cylinders are cut, ground and polished according to the dimensional requirements of customers to obtain high precision dimensional deviation and surface roughness.
Product Performance Related
Q: What hardness level can Alumina Cylinders achieve?
A: Shandong Qishuai Wear-Resistant Equipment Co., Ltd. Alumina Cylinders hardness can reach a Mohs hardness of 9, only second to the diamond – the hardest thing in nature. This greatly exceeds traditional metal materials, wear resistance, and can keep the high-abrasion environment for a long time in a stable state, greatly extending the service life of the equipment.
Q: What is the product's density?
A: Our products possess a density ranging from 3.8 g/cm³ to 3.9 g/cm³. This high-density characteristic results in a denser structure, enhancing properties such as wear resistance and compressive strength, ensuring outstanding performance across diverse applications.
Q: What is the high-temperature limit of the alumina cylinder?
A:The melting point is 2072°C, and its physical and chemical properties will be kept in the high temperature range. It won't soften, deform or melt at over 1400°C, and it can be used in many high temperature he industrials, for example, metallurgy and glass.
Should you have any enquiries regarding our products, please do not hesitate to contact us via the following methods:
Telephone:+86-533-7010227
WhatsApp:8615898737636 (Kella)
WhatsApp:8618953367229 (Penny)
WhatsApp:8613869372890 (John)
Email:qishuai@zbqishuai.cn
Address
Phoenix Industrial Park, Linzi District, Zibo City, Shandong Province, China
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