For special usages, brown fused alumina will be treated in high temperature or plating which will help improve the property of brown fused alumina abrasive grain. iron sand manufacturer Preparation of iron plating abrasive materials using ferrous sulfate and mineral compound as the plating liquid was studied including the effects of the amount of the plating liquid amount and hot-processing temperature on the quality of the abrasive.
Testing of the performance of the brown fused alumina abrasive materials showed the compressive strength and hydrophilic property were improved. By using good hydrophilic brown fused alumina abrasive grain, the durability of abrasive tools will be increased 30%-50%.The iron plating abrasive materials exhibited better performance in grinding indexes and abrasive and the grinding efficiency. The magnetic material can be reduced in the high heat treat process which ensure no spots in abrasives surface.
Brown Fused Alumina is made from high quality bauxite by fusing in an electric arc furnace at high temperature. The quality of the raw materials determines the quality of brown fused alumina. The alumina content of bauxite that used in furnace must meet the standard, or even higher than the actual standard. At the same time, it is necessary to strictly follow the process in the production process to minimize the impact of impurities in the brown fused alumina.
The EDTA volumetric method is adopted to test the alumina content in brown fused alumina. The impurities in brown fused alumina will be tested firstly, then the alumina content will be calculated. This testing method is complicated,the index obtained also has a certain deviation. HSL abrasive refractory At present, it is also possible to determine the alumina content by using bitter almond acid as masking agent. The method can directly test the alumina content without test other data, which not only reduces the test procedure, but also obtains accurate data.
