Brown and white corundum
Chemical composition of brown corundum sandBrown corundum abrasive is bauxite, coke (anthracite) as the main raw materials, in the arc furnace by high temperature exercise. The main chemical composition is A1203, TI02, also contains a few Si02 and Fe203, etc., microhardness HV1800-2200, higher resistance than SiC, brown corundum grinding polishing stone is a variety of grinding and polishing equipment used in the indispensable accessories.
In fact, there are many factors affecting the quality of white corundum sand, and raw materials are one of the main factors. The quality of raw materials is the basic condition for smelting good quality products. When the white corundum sand has just emerged, the industrial demand for it is not very large, but its raw material mining is relatively large, and the supply exceeds the demand, so the situation of low raw material price is caused. So we can get a lower price to buy high-quality raw materials, so the quality of white corundum sand in that period is generally high.
Chemical composition of brown corundum sand: A1203 95%6-97.5%6,SiO2< 1%6,TIO2 1.5-3.9%6, Fe203<0.25%6,Ca0< 0.25%, crystal form: a-A1203 trigonal crystal form. Brown corundum sand product performance: high hardness, high strength, impact resistance, high temperature resistance, oxidation resistance, corrosion resistance, low creep.Properties of brown corundum sandApplication of brown corundum sand: ceramic resin abrades, sandblasting, grinding and polishing, widely used in anti-slip wear raceway, high temperature resistant substrate coating and metallurgical, chemical and other industrial kiln advanced refractory materials. Carbon steel, alloy steel, malleable cast iron, hard green with, glass products, precision grinding stone, precision polishing, grinding non-woven fabric and semiconductor materials.
What factors affect the sand quality of white corundum segmentLater, with the rapid development of industry, the demand for white corundum sand is also increasing, and the demand for raw materials is also intensified. Due to the gradual implementation of mineral protection by relevant departments, the mining amount of raw materials is reduced, and the price also begins to rise slowly, which undoubtedly increases the cost of white corundum sand. The cost is high, the price is high, and the number of customers will be affected to a certain extent. In order to lower the price of finished products, it is necessary to start from its raw materials. There are some bad merchants to acquire some of the lower-quality raw materials for processing, which effectively reduces the cost, but the quality of white corundum sand is greatly discounted.Secondly, the factor affecting the quality of white corundum sand is the process, the quality of processing technology is good or bad, the impact on the quality is not small.
