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China Supplier White Fused Alumina Fine Powder - Micro Sodium White Fused Alumina – Yufa

China Supplier White Fused Alumina Fine Powder - Micro Sodium White Fused Alumina – Yufa


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China Supplier White Fused Alumina Fine Powder - Micro Sodium White Fused Alumina – Yufa Detail:

micro sodium white fused alumina

Compared With β-Al2O3 And α-Al2O3

Sodium oxide is a harmful impurity to white corundum. It forms β-Al2O3 with alumina in the molten state, and the amount of production increases with the increase of sodium oxide content. Na2O in white corundum mainly appears in the form of Na2O·11AL2O3 (β-Al2O3). For example, if the alumina raw material contains more than 0.6% sodium oxide, the white corundum produced with it will contain more than 10% β-Al2O3.

Compared with β-Al2O3, α-Al2O3 has ‘three highs’. First, it has a high melting point, Secondly a high density, and thirdly a high hardness, as shown in the following table:

 Phase Chemical compositions Crystal System Density (g/cm3 Micro hardness (Kg/mm²) Melting point (℃)
α-Al2O3 Al2O3 Hexagonal 4.0 2300 2050
β-Al2O3 Na2O·11Al2O3 Trigonal 3.24 1300~1600 1600

Chemical Composition

Chemical Composition Na2O % ≤ Al2O3 % ≥ SiO2 % ≤ Fe2O3 % ≤
Gurantee Value 0.06 99.7 0.1 0.05
Typical Value 0.02 99.89 0.04 0.03

Advantages

The micro-sodium white fused alumina improves the melting point, particle density, bulk density, flexural strength, compressive strength, true density, hardness and other properties of white corundum products, laying a solid foundation for the product to enter the high-end market.

Applications

white fused alumina application
grinding
grinding processing

It is suitable for processing alloy steel, high hardness steel, high carbon steel and other materials with high hardness and high tensile strength.


Product detail pictures:

China Supplier White Fused Alumina Fine Powder - Micro Sodium White Fused Alumina – Yufa detail pictures

China Supplier White Fused Alumina Fine Powder - Micro Sodium White Fused Alumina – Yufa detail pictures

China Supplier White Fused Alumina Fine Powder - Micro Sodium White Fused Alumina – Yufa detail pictures


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Persisting in "High quality, Prompt Delivery, Aggressive Price", we have established long-term cooperation with clientele from both equally overseas and domestically and get new and old clients' higher comments for China Supplier White Fused Alumina Fine Powder - Micro Sodium White Fused Alumina – Yufa , The product will supply to all over the world, such as: Australia, Nigeria, Islamabad, our qualify products have good reputation from the world as its most competive price and our most advantage of after-sale service to the clients.we hope we can provide a safe, environmental products and super service to our clients from all of the world and establish strategic partnership with them by our professional standards and unremitting efforts.
  • It's really lucky to find such a professional and responsible manufacturer, the product quality is good and delivery is timely, very nice.
    5 Stars By Eric from Belgium - 2018.09.21 11:01
    Goods just received, we are very satisfied, a very good supplier, hope to make persistent efforts to do better.
    5 Stars By Antonia from Korea - 2018.06.12 16:22
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