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Cheap Brown Fused Alumina Suppliers In China

buy brown fused alumina particles with a diameter of 40 microns are called micropowders. Most of them are used for super precision grinding of machining parts. Its specification starts from 40 microns and adopts a series of equal ratio series. In the production of micropowder, the best raw materials are usually 36 × 10-100 × 10 abrasives. The 180 grit aluminum oxide blasting media abrasives outside this range, non corundum impurities are increased.


Cheap Brown Fused Alumina Suppliers In China MOQ: 1 Ton! 19 Years Experience Brown Fused Alumina Supplier, 35,000m² Workshop Area, Free Samples, Fast Delivery!


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Acid pickling is heated with 15% sulfuric acid and must be continuously stirred to fully remove the iron. The slurry after brown fused alumina pickling shall be cleaned to make it neutral. The cleaning is to wash the slurry intermittently with clean water. There must be a settling process for each washing to make the green carborundum raw material settle down, and then drain the waste acid solution, and then clean it next time until the slurry is neutral.


The first process of brown aluminum oxide micro powder production is grinding, crushing raw materials to 40 microns or more. At present, most of them are wet grinding by ball mill, and the milled materials will be pumped to the second process pickling. The raw materials treated by ball milling and acid pickling can be graded by aluminum oxide abrasive particle size. At present, most of them are classified by water power.


The purpose of hydraulic classification and screening classification is exactly the same, and the brown aluminium oxide production efficiency of hydraulic classification is lower than that of screening. There are several methods of hydraulic classification, the famous ones are sedimentation method, overflow method, swirl method and centrifugal method. The silicon carbide companies settling method is based on the mechanism of different settling speed in water with different particle size.


The overflow method is based on the same white alumina mechanism as the settling method, but it uses the water flow speed greater than the particle settling speed to bring out the particles. The hydrocyclone method is that the slurry rotates at high speed in the hydrocyclone to produce centrifugal force, and the aluminum oxide grit particle size is different, so the centrifugal force is different, so the particle size is separated. In the future, the products will be removed.


The audio vibration can also be used to separate the mixed particle groups of black corundum particles, which are placed on the inclined plane, so that the inclined plane produces audio vibration. Due to the different friction force of different particle sizes on the inclined plane matrix, white aluminum oxide abrasive 220 grit different degrees of "crawling" are generated to obtain particles Grading of grains. However, it is very difficult to screen 40 microns. 


The slurry rotates at high speed in the centrifuge, and is separated due to the different centrifugal force generated by pink corundum particles of different sizes. In the production of micropowder, classification is the most important process. After classification, various products of different specifications will be obtained. As for the white fused alumina oxide mfg classification of micro powder, the centrifugal method can also be used.


The common dehydration methods are filtration, natural sedimentation and centrifugal dehydration. Because of the long period of powder classification, the silicon carbide price natural sedimentation method can adapt to the classification process, and the natural sedimentation method does not need any machinery, no power consumption. It is very simple to collect the white fused aluminum oxide product by using the settling bucket, but the degree of dehydration is poor.


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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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