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Best Aluminum Oxide 1000 Grit Suppliers Mexico

No unburned products and impurities are allowed in ms98, MS97 and ms96 brands(brown fused aluminum oxide suppliers); the surface area of the unburned products, melts and black blocks containing 5-30mm magnesium sand shall not exceed 1 / 2 of the surface area of the magnesia block(white aluminium oxide manufacturer); the surface area of the unburned products, melts and black blocks containing more than 30mm MS88 and ms83 brands sintered magnesia shall not exceed 1 / 2 of the surface area of the magnesia block.


Best Aluminum Oxide 1000 Grit Suppliers Mexico MOQ: 1 Ton! 19 Years Experience Aluminum Oxide Grit Supplier, 35,000m² Workshop Area, Free Samples, Fast Delivery!


If you want to buy best aluminum oxide 1000 grit, please click our products: Brown Fused Aluminum Oxide or White Aluminium Oxide or Black Aluminum Oxide or Pink Aluminum Oxide for more information!


Limited content of unburned products and impurities: the content of unburned products and impurities in ms95 brand is not more than 1% of each batch(wholesale brown fused alumina); it is not more than 2% of each batch in ms93, MS90, ms87 and ms84 brand; it is not more than 3% of each batch in other brands; If the grain size of magnesium sand is 5-30mm, it shall not be a whole piece of under burnt product(brown fused aluminum oxide factory), and then made into crystalline periclase by high temperature sintering or electrofusion.


Magnesia mainly uses slaked lime or light burnt dolomite as precipitant to replace bischofite in seawater with magnesium hydroxide(low density white alumina), because it is insoluble in water, after several times of washing, impurities dissolved in water are removed, and then it is light burned, pressed, sintered at high temperature or electrofused into crystalline periclase(brown fused alumina 60 grit); Or the bischofite can be directly heated to over 700 ℃, decomposed into light burned MgO and Cl2.


The former method is the main one. Sea magnesia is mostly used to make magnesia refractory products(aluminium oxide polishing powder). The purity of sea water magnesia is high, Mg content is more than 95%, and the impurities are Al2O3, SiO2, Fe2O3, b2o, etc. The first three impurities come from the precipitant dolomite lime(white fused alumina oxide mfg). B2o is a strong flux, and its effect on the high temperature strength of magnesia is more harmful than Al2O3, CrO2, Fe2O3 and other oxides, and its hazard ratio is about 70111:3:1.


At present, the b2o of high purity sea magnesia is less than 0.1%(wilson abrasive). The main crystalline phase of sea water magnesia is periclase. The silicate phase can be properly controlled by adjusting the C / S ratio or adding other substances to obtain magnesia with different compositions(brown fused alumina suppliers). Seawater magnesia has high bulk density, low porosity, large diameter of calcite crystal and small number of grain boundaries, so it has good mechanical properties at high temperature.


The main crystalline phase of fused magnesia is periclase, with a melting point of 2800 ℃(arc fused alumina). The crystals are barrel like and short column like, and a few are plate-like or double cone with thick stripes. The content of coke in unburned products and impurities (calculated as more than 5mm): no more than 0.03% of each batch in ms95, ms93, MS90, ms87 and ms84 brands(brown fused alumina factory); no more than 0.04% of each batch in other brands.


It begins to sublime at 1600 ℃ in vacuum and above 2000 ℃ in reducing atmosphere, with a density of more than 3.40g/cm, porosity of 0% ~ 10%(alumina polishing powder), Mohs hardness of 5.5, strong resistance to alkaline slag erosion. Periclase is usually cubic, octahedral or irregular granular, with complete cubic cleavage(brown aluminum oxide 250 grit); The coefficient of linear expansion a = = (14 ~ 15) × 10 ~ / ℃ (0 ~ 1500 ℃), and increases with the increase of temperature.


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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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