95アルミナセラミックスの硬度

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95 alumina ceramic is an advanced industrial ceramic with alpha alumina (Al ₂ O ∝) as the main crystal phase and a content of up to 95%. It is made through fine powder preparation, molding, and high-temperature sintering processes. The high proportion of alumina content endows it with a series of outstanding physical and chemical properties, among which hardness is one of its most striking core characteristics.

What is the hardness of 95 alumina ceramics?
Hardness is a measure of a material’s ability to resist local indentation or scratching. For 95 alumina ceramics, we typically use Vickers hardness (HV) and Rockwell hardness (HRA) as objective measurements.
Vickers hardness (HV0.5): typically up to 1500-1650 HV
Rockwell hardness (HRA): typically up to 80-90 HRA
To provide you with a more intuitive understanding, we will compare it with some common materials:
Compared to quenched steel (approximately 600-800 HV), the hardness of 95 alumina ceramic is more than twice as high.
Compared to cemented carbide (YG6, approximately 1100 HV): the hardness is about 30% -50% higher.
Compared to ordinary glass (about 500 HV): its hardness is more than three times higher.
This extremely high hardness means that 95 alumina ceramics can effectively resist the scratching, wear, and indentation of the vast majority of abrasives and hard objects.

Product Application: The Application of Hardness
The extremely high hardness makes 95 alumina ceramics an ideal material for harsh environments, mainly used in:

1. 耐摩耗コンポーネント：
   Sealing ring/mechanical seal: used for water pumps, chemical pumps, slurry pumps, etc. In media containing solid particles, its high hardness ensures extremely low wear rate and long service life.
   Lining plate and lining brick: As the inner lining of ball mills, pipelines, and silos, it protects the metal body from material erosion.
   Nozzle: Sandblasting and waterjet cutting nozzles can maintain stable aperture for a long time, ensuring machining accuracy.
2. Key wear-resistant parts:
   Cutting tools and blades: used for cutting fiber materials in the textile and paper industries, with a lifespan far exceeding that of metal cutting tools.
   Guide rails and slides: In automation equipment, provide high wear resistance and low friction moving surfaces.
3. Corrosion resistant environment:
   Although hardness mainly resists mechanical wear, its inherent chemical inertness combined with high hardness makes it a dual functional component that is wear-resistant and corrosion-resistant in acidic and alkaline environments, such as chemical valves and pump components.

製品の利点と解決された問題
Choosing 95 alumina ceramic is not only about choosing a high hardness material, but also about choosing a set of solutions.
Advantage:
Extremely high wear resistance: significantly reduces equipment downtime and replacement frequency.
優れた耐食性： resistant to corrosion from various acidic and alkaline chemicals.
High strength and rigidity: maintain shape stability in high-pressure environments.
良好な電気絶縁性： can be used in wear-resistant situations that require insulation.
高い費用対効果： Although the cost per piece may be higher than that of metal, its long lifespan greatly reduces overall maintenance costs.
問題は解決した：
Addressing the issue of short device lifespan: By replacing metal materials, the lifespan of components can be extended several times to tens of times.
製品汚染問題への対応： non-magnetic and pollution-free, suitable for clean industries such as food, medicine, and electronics.
Addressing the issue of low production efficiency: reducing downtime caused by replacing worn-out parts and improving continuous production capacity.
高い維持費の問題に対処する： significantly reducing spare parts inventory and manual maintenance expenses.

Why choose our 95 alumina ceramic?
There are many suppliers in the market, but our products provide you with irreplaceable value:

1. Purity and microstructure control: We use high-purity raw materials and advanced sintering technology to ensure that the alumina content is stable at over 95% and forms a uniform and dense microstructure, which is the fundamental guarantee for high hardness and high performance.
2. Precision machining capability: We have a mature ceramic machining production line that can provide high-precision, low tolerance products according to your drawing requirements, meeting your demanding assembly needs.
3. Excellent cost-effectiveness: We provide you with the most competitive prices in the market while ensuring top-notch quality through optimized production processes and large-scale production.
4. 専門的な技術サポート： Our engineering team can provide you with full process technical support from material selection suggestions, structural design to application fault analysis.

顧客実例（匿名）

Case 1: A large mining group
問題だ： The flow components (impeller, guard plate) of the slurry pump in its beneficiation workshop are made of high chromium cast iron. When transporting high concentration slurry, they need to be replaced on average every 2 weeks, resulting in frequent shutdowns and extremely high maintenance costs.
解決策 We have recommended and customized 95 alumina ceramic lining components for it.
Effect: After replacement, the equipment ran continuously for more than 6 months before undergoing the first inspection, with minimal wear and tear. The service life has been increased by more than 10 times, and the annual maintenance cost has been reduced by more than 60%.
Case 2: A precision electronic material manufacturer
問題だ： The alloy steel blades used for cutting fiberglass cloth on the production line are prone to wear and tear, resulting in uneven cutting, burrs, and the need to replace the blades several times per shift, which affects product consistency and efficiency.
Solution: We provide 95% alumina ceramic blades.
Effect: Ceramic blades can be used continuously for more than 2 weeks and remain sharp, with smooth and neat cutting edges, completely solving product quality problems and greatly improving production efficiency.

The hardness of 95 alumina ceramics is not an isolated parameter, it is the cornerstone of its excellent wear resistance, long service life, and reliable performance. In the industrial sector facing severe wear and tear challenges, it is becoming a revolutionary choice to replace traditional materials.
What problems or challenges have you encountered due to wear and corrosion during the use of your product? Welcome to leave a message and communicate with us. We are willing to provide you with the best solutions with professional technology and products.

ブルーズ・セラミックス は、アルミナセラミックス、ジルコニアセラミックス、窒化ケイ素セラミックス、窒化アルミニウムセラミックス、炭化ケイ素セラミックス、炭化ホウ素セラミックス、バイオセラミックス、マシナブルセラミックスなど、高品質の石英ガラスを幅広く供給・販売しています。様々なセラミック製品のカスタマイズ要求にもお応えします。