Brown Corundum For Abrasives And Grinding Tools

Brown Fused Alumina as a highly consistent synthetic mineral for use in a myriad of applications from general blasting and surface finishing of non-aero components,anti-slip flooring,vibratory finishing medias,safe manufacture,coated and bonded abrasives and polishing compounds.

Brown Fused Alumina is fused and crystallized under the high temperature of above 2250°C with high quality bauxite,carbon and iron as raw material.

Our product characterized by high purity,good crystal,strong fluidity,low coefficient of linear expansion,good corrosion-resistance and so on.Could not burst,no pulverization and crack in using course of refractory.

Brown corundum is a high-performance artificial abrasive that occupies an important position in high-end industrial fields due to advanced production processes and excellent material properties. The following provides a detailed introduction from the aspects of production process, composition performance, and application fields:

1, Production process and core characteristics
The birth of brown corundum relies on precise process control, which achieves precise control of the microstructure of the material through the synergistic effect of multiple processes such as smelting, cooling, and product grading. The core lies in stabilizing the effective solid solution amount of TiO ₂ in the α - Al ₂ O3 crystal in the abrasive, optimizing the reasonable phase distribution between the glass phase and corundum grains, and thereby endowing the product with polymerization properties. This process endows brown corundum with good microstructure distribution, high single particle compressive strength, excellent self sharpening, high cleanliness, and sharp abrasive properties, laying the foundation for its application in various harsh scenarios.

2, Key components and performance indicators
From the perspective of composition, the main component of brown corundum, Al ₂ O3, has a content of up to 95.3-96%, which is the core guarantee of its hardness and wear resistance; The TiO ₂ content is controlled at 2.3-2.8%, and the crystal structure is optimized through solid solution action; At the same time, the impurity content is extremely low, with SiO ₂<0.9% and Fe ₂ O3<0.15% CaO＜0.30%, Ensure the high-definition cleanliness of the product.

In terms of performance indicators, the single particle compressive strength of brown corundum can reach 6.75kg (the typical value of 46 # is 46.5% ± 0.5), which can withstand high-strength grinding pressure; The bulk density is 1.72-2.05g/cm ³, ensuring uniform distribution in the grinding tool and improving grinding efficiency. In addition, the diverse specifications of the F series (F20-F180) can meet different needs from rough grinding to fine grinding.

3, Widely applicable fields
Brown corundum has demonstrated its outstanding performance in multiple high-end fields:
-High end grinding market: suitable for precision grinding of refractory metals and superalloys. Its sharp abrasive particles and high compressive strength can efficiently process hard materials while reducing heat accumulation during processing.
-Abrasive and grinding tool manufacturing: It is the core raw material for grinding wheels, sandpapers, and other grinding tools, used for cutting, grinding, and polishing materials such as metals, ceramics, and glass.
-In the field of refractory materials, due to its high temperature resistance and corrosion resistance, it is used for the lining manufacturing of high-temperature kilns and furnaces, protecting equipment from stable operation in extreme environments.
-Surface treatment: In the sandblasting process, rust and impurities on the metal surface can be removed, providing a good substrate for subsequent processes such as coating and electroplating.

4, Customized services
To meet the personalized needs of different customers, brown corundum can provide customized production, adjusting particle size, composition ratio or performance parameters according to specific requirements, further expanding its application range.

In short, brown corundum has become an indispensable key material in modern industry due to its unique process, stable composition, and excellent performance, playing an important role in promoting the development of high-end manufacturing.

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