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Aluminum Oxide 30 Or 40 Grit Manufacturers Poland

Refractory fiber is a new type of fiber-shaped refractory material(garnet abrasive price). The Al2O3 content of alumina hollow spherical brick is not less than 98%, SiO2 content is not more than 0.5%, Fe2O3 content is not more than 0.2%, volume density is 1.3 ~ 1.4g/cm, apparent porosity is 60% ~ 70%(aluminum oxide sandblasting media), compressive strength is not less than 9.8MPa, load (0.2MPa) softening temperature is not less than 1700 ℃, thermal conductivity is 0.7 ~ 0.8W / (m · K). 


Aluminum Oxide 30 Or 40 Grit Manufacturers Poland MOQ: 1 Ton! 19 Years Experience Aluminum Oxide Grit Manufacturer, 35,000m² Workshop Area, Free Samples, Fast Delivery!


If you want to buy aluminum oxide 30 or 40 grit, please click our products: Brown Fused Aluminum Oxide or White Aluminium Oxide or Black Aluminum Oxide or Pink Aluminum Oxide for more information!


The production process is to use zirconia as raw material, calcium oxide (or magnesium oxide, etc.) as stabilizer, mix uniformly, melt into molten liquid by arc method(glass bead abrasive), spray with compressed air to make zirconia hollow ball, then use the wrong hollow ball (65% ~ 70%) and zirconia fine powder (30% ~ 35%) as raw material, use the boric acid aqueous solution as binder(high purity fused aluminum oxide), mix uniformly and then use the pressurized vibration molding machine to form the brick.


The refractoriness of oxidized cast hollow ball brick is higher than 2400 ℃, the apparent porosity is 55% ~ 60%(steel shot abrasive), the bulk density is 2.5 ~ 3.0g/cm, the compressive strength is not less than 4.9mpa, and the thermal conductivity is 0.23 ~ 0.35w / (m · K). It is used as a high temperature lining material for direct contact with flame in the thermal equipment of metallurgy, chemical industry, electronics and other industries(aluminum oxide for sand blaster), have long been used as building materials.


Zirconia hollow ball brick is an excellent heat insulation and fire-resistant product, and its safe use temperature can reach 2200 ℃(white fused alumina). Alumina heat insulation brick is a kind of heat insulation and fire-resistant product made of fused alumina, sintered alumina and industrial alumina. It is made of high temperature solution and quenched in the process of fibrosis(aluminum oxide 220 grit abrasive). The oxidized hollow ball brick is a kind of heat insulation and fire-resistant product made of oxidized hollow ball as the main raw material.


The production process consists of two methods: foaming method and burning adding method(white aluminum oxide). Magnesia heat insulation board is a kind of heat insulation and fire-resistant product which is composed of magnesia and fiber. The density of magnesia insulation board is 1.8-2.0g/cm, the flexural strength is more than 3.5Mpa(aluminum oxide 40 grit), the thermal conductivity is 0.45-0.76w / (m · K), and the linear shrinkage at high temperature (1200, 1H) is less than 2%.


It has the characteristics of general fiber, such as softness and high strength, can be added into various belts, wires, ropes, blankets, felt, etc.(white corundum), and has the high temperature and corrosion resistance performance that ordinary fiber does not have, and most of the refractory fiber is resistant to oxidation(60 grit aluminum oxide). The so-called Xie Huo fiber usually refers to the fiber material with the use temperature of more than 1000 ~ 1100 ℃, while asbestos, mineral wool, etc.


In a broad sense, they should also be regarded as fire attached fibers, but mostly used below 600 ℃(glass beads manufacturers). According to the microstructure, the refractory fiber can be divided into two types: amorphous and polycrystalline: the amorphous refractory fiber is aluminum silicate fiber with Al2O3 content of 45% ~ 60%(100 grit aluminum oxide blast media). The manufacturing methods of polycrystalline refractory fiber include colloid method and precursor method. It is burnt at 1700 ~ 1800 ℃ after bad drying.


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

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