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Wholesale Price China White Fused Alumina Corundum - Micro Sodium White Fused Alumina – Yufa

Wholesale Price China White Fused Alumina Corundum - Micro Sodium White Fused Alumina – Yufa


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Wholesale Price China White Fused Alumina Corundum - 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:

Wholesale Price China White Fused Alumina Corundum - Micro Sodium White Fused Alumina – Yufa detail pictures

Wholesale Price China White Fused Alumina Corundum - Micro Sodium White Fused Alumina – Yufa detail pictures

Wholesale Price China White Fused Alumina Corundum - Micro Sodium White Fused Alumina – Yufa detail pictures


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Our goods are commonly recognized and reliable by consumers and may satisfy continually developing economic and social needs for Wholesale Price China White Fused Alumina Corundum - Micro Sodium White Fused Alumina – Yufa , The product will supply to all over the world, such as: Comoros, Slovenia, Porto, Based on experienced engineers, all orders for drawing-based or sample-based processing are welcomed. We have now won a good reputation for outstanding customer service among our overseas customers. We will continue to try the best to supply you good quality products and solutions and the best service. We've been looking forward to serving you.
  • Products and services are very good, our leader is very satisfied with this procurement, it is better than we expected,
    5 Stars By Kama from Vietnam - 2017.12.09 14:01
    It can be said that this is a best producer we encountered in China in this industry, we feel lucky to work with so excellent manufacturer.
    5 Stars By Melissa from Macedonia - 2018.10.09 19:07
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