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OEM/ODM China White Corundum Oxide - Micro Sodium White Fused Alumina – Yufa

OEM/ODM China White Corundum Oxide - Micro Sodium White Fused Alumina – Yufa


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OEM/ODM China White Corundum Oxide - 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

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.

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

Product detail pictures:

OEM/ODM China White Corundum Oxide - Micro Sodium White Fused Alumina – Yufa detail pictures

OEM/ODM China White Corundum Oxide - Micro Sodium White Fused Alumina – Yufa detail pictures

OEM/ODM China White Corundum Oxide - Micro Sodium White Fused Alumina – Yufa detail pictures


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We rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate in our success for OEM/ODM China White Corundum Oxide - Micro Sodium White Fused Alumina – Yufa , The product will supply to all over the world, such as: Washington, Colombia, Somalia, In the increasingly competitive market, With sincere service high quality products and well-deserved reputation, we always offer customers support on products and techniques to achieve long-term cooperation. Living by quality, development by credit is our eternal pursuit, We firmly believe that after your visit we will become long-term partners.
  • Good quality and fast delivery, it's very nice. Some products have a little bit problem, but the supplier replaced timely, overall, we are satisfied.
    5 Stars By Anna from Florence - 2017.11.12 12:31
    The sales manager has a good English level and skilled professional knowledge, we have a good communication. He is a warm and cheerful man, we have a pleasant cooperation and we became very good friends in private.
    5 Stars By Dale from Accra - 2018.11.22 12:28
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