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China OEM Alumina Powder - Micro Sodium White Fused Alumina – Yufa

China OEM Alumina Powder - Micro Sodium White Fused Alumina – Yufa


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

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

 

Applications

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 OEM Alumina Powder - Micro Sodium White Fused Alumina – Yufa detail pictures

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

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


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We insist on offering high-quality production with great enterprise concept, honest product sales and also the finest and fast service. it will bring you not only the superior quality solution and huge profit, but the most significant should be to occupy the endless market for China OEM Alumina Powder - Micro Sodium White Fused Alumina – Yufa , The product will supply to all over the world, such as: Tunisia, Montpellier, Brunei, Over the years, with high-quality products, first- class service, ultra-low prices we win thee trust and favor of customers. Nowadays our products sell all over the domestic and abroad. Thanks for the regular and new customers support. We provide high quality product and competitive price, welcome the regular and new customers cooperate with us!
  • The supplier abide the theory of "quality the basic, trust the first and management the advanced" so that they can ensure a reliable product quality and stable customers.
    5 Stars By Annie from San Diego - 2017.08.15 12:36
    Speaking of this cooperation with the Chinese manufacturer, I just want to say"well dodne", we are very satisfied.
    5 Stars By Miriam from United Kingdom - 2017.10.23 10:29
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