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High definition White Alumina Oxide Sand - Micro Sodium White Fused Alumina – Yufa

High definition White Alumina Oxide Sand - Micro Sodium White Fused Alumina – Yufa


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High definition White Alumina Oxide Sand - 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:

High definition White Alumina Oxide Sand - Micro Sodium White Fused Alumina – Yufa detail pictures

High definition White Alumina Oxide Sand - Micro Sodium White Fused Alumina – Yufa detail pictures

High definition White Alumina Oxide Sand - Micro Sodium White Fused Alumina – Yufa detail pictures


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In the past few years, our business absorbed and digested advanced technologies both equally at home and abroad. In the meantime, our company staffs a group of experts devoted to your advancement of High definition White Alumina Oxide Sand - Micro Sodium White Fused Alumina – Yufa , The product will supply to all over the world, such as: Slovenia, UK, Korea, If you give us a list of products you are interested in, along with makes and models, we can send you quotations. Please email us directly. Our goal is to establish long-term and mutually profitable business relationships with domestic and overseas clients. We look forward to receiving your reply soon.
  • The goods we received and the sample sales staff display to us have the same quality, it is really a creditable manufacturer.
    5 Stars By Rebecca from Lyon - 2018.02.12 14:52
    As a veteran of this industry, we can say that the company can be a leader in the industry, select them is right.
    5 Stars By Eve from Bangladesh - 2018.10.09 19:07
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