What is the effect of the surface properties of Brown Fused Alumina on the strength of vitrified Abrasives? from Carrie Ge's blog


Brown fused alumina is one of the most common abrasive grit used in vitrified abrasive tools. The using of natural raw materials in production will eventually result in impurities, such as Fe, Ca, Ti, Mg. iron sand manufacturer Brown Fused Alumina abrasive grains will react with bond under high temperature, resulting in the apparent cracks, pores and crystal forming on the reaction interface of abrasive grain and bond, and consequently the strength of abrasive grinding wheels is reduced.


Brown Fused Alumina is a tough, sharp abrasives which is highly suitable for grinding metals of high tensile strength. Brown fused Alumina thermal properties make it an excellent material for use in the manufacture of refractory products. This material is also used in other applications like blasting and surface hardening.


Brown fused Alumina is mainly used as a recyclable abrasive in blast cabinets and blast rooms.


Because of its low iron content, alumina is often used in blasting operations where iron contamination on the non-ferrous metal substrate is not allowed. Aluminium oxide is a very hard and sharp abrasive that cleans rapidly. HSL abrasive refractory It leaves an anchor profile prior to coating and is suitable for removal of scale, rust and old coatings. Furthermore it is used for ceramic grinding wheels, refractory applications and polishing and grinding.


If the surface of brown fused alumina abrasive grains are property treated by acid cleaning, coating or high temperature roasted, the strength of vitrified abrasive tools will be enhance.

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By Carrie Ge
Added Oct 30



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