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Brown Aluminium Oxide Grit Wholesale Price Poland

The high temperature performance of the product depends on the content of Al2O3 (i.e. the content of mullite and a small amount of corundum) and the homogeneity of mullite crystal phase and glass phase distribution(aluminum oxide abrasive). Using sintered Al2O3 or fused corundum as raw material, or alumina clinker with high Al2O3 / SiO2 ratio and sintered alumina, the sintering method is adopted(1200 grit aluminum oxide).

Brown Aluminium Oxide Grit Wholesale Poland MOQ: 1 Ton! 19 Years Experience Brown Aluminium Oxide Manufacturer, 35,000m² Workshop Area, Free Samples, Fast Delivery!

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Chemical composition is the basis of refractories(brown fused alumina). The main component is the component of the main body of fire resistance, and also the basis of determining the characteristics of products. It can also be made into unburned corundum brick with phosphoric acid or other chemical binders(silicon carbide abrasive). Al2O3-SiO2 refractories are heterogeneous materials composed of minerals with different chemical compositions and structures. 

Generally, the chemical composition of refractories is divided into two parts according to the content of each component and its action(black corundum), that is, the principal component accounting for an absolute amount and the by-component accounting for a small amount (impurity component and additive component). Corundum brick refers to refractories with Al2O3 content not less than 90% and corundum as the main phase(aluminum oxide grit).

Except that the main component of refractories made of special raw materials is close to 100%, the aluminosilicate refractories made of natural raw materials are inevitably mixed with a certain amount of impurities(brown aluminum oxide). Therefore, the minimum value of the main component is stipulated in the quality regulations of refractories(green silicon carbide). It is made of quartzite with a small amount of mineralizer and fired at high temperature.

If we know the main components of the chemical composition, it is easy to know the refractory main body(80 grit aluminum oxide blasting media). This expansion will make the joints close and ensure good air tightness and structural strength of the masonry. Most of the impurities in the materials act as fluxes at high temperature, which seriously reduces the fire resistance of the products(100 grit aluminum oxide media).

Generally, they are regarded as harmful components(brown aluminium oxide). But the products also include fused cast bricks, granulated bricks, unburned bricks and amorphous refractories. High alumina brick is widely used in iron and steel industry, non-ferrous metal industry and other industries(synthetic corundum). Its mineral composition is composed of tridymite, cristobalite, a small amount of residual quartz and high-temperature glass.

The general characteristics of silica brick silica brick is a refractory product with silica as the main component and its content more than 93%(pink corundum). Silica brick is a kind of acid refractory material, which has strong resistance to acid slag erosion, but it is easily damaged by Al2O3, K2O, Na2O and other oxides due to strong erosion of alkaline slag(black silicon carbide), and has good resistance to Cao, FeO, Fe2O3 and other oxides.

The high deformation temperature under load is the excellent characteristic of silica brick(white alumina), which is close to the melting points of tridymite and cristobalite (1670 ℃, 1713 ℃), and fluctuates between 1640 ~ 1680 ℃. The volume of silica brick in the range above 300 ℃ to near the melting point (tridymite or cristobalite) is stable(emery abrasive). When it is heated to 1450 ℃, it has a total volume expansion of about 1.5% ~ 2.2%. 

white aluminium oxide
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Brown Fused Alumina And White Fused Alumina MOQ: 1 Ton! 19 Years Manufacturing Experience, 35,000m² Workshop Area, Factory Price, Free Samples, Fast Delivery!