The importance of green silicon carbide as an additive to edible salt

Hit count:   Updated:19/06/15 14:05:06     Source:www.zbdx-sic.comcloseShare:
The method for manufacturing green silicon carbide is the same as that of black silicon carbide, but the raw material used has high purity requirements. It is also formed at a high temperature of about 2200 ° C in an electric resistance furnace. It is green, translucent, hexagonal, and its Sic content is higher than black. The physical properties are similar to those of black silicon carbide, but the performance is slightly brittle, and it also has good thermal conductivity and semiconductor properties.
Green silicon carbide is an additive for salt. It is made by high-temperature smelting of petroleum coke and silica as the main raw material. What is the role of polishing paste material?
1. Characteristics of Green Silicon Carbide The high-purity, large-crystal silicon carbide raw material of green silicon carbide abrasive is used to ensure the excellent cutting performance and stable physical state of silicon carbide cutting fine powder.
2. It has high thermal shock stability and load softening temperature, which ensures a small linear expansion coefficient at the load, thus ensuring stable cutting; and it can be well matched with the cutting machine.
3. The particle size shape is equal to the product and has a blade edge, which ensures the silicon carbide micropowder as the balanced self-sharpness of the cutting, and the green material of the polishing paste material ensures the miniaturization of the TTV to be cut.
4, the surface has been specially treated, the micro-powder has a large specific surface area and a clean appearance
According to the shape, the green silicon carbide can be divided into a flat grinding wheel, a beveling grinding wheel, a cylindrical grinding wheel, a cup-shaped grinding wheel, a dish-shaped grinding wheel, etc.; according to the bonding agent, it can be divided into a ceramic grinding wheel, a resin grinding wheel, a rubber grinding wheel, a metal grinding wheel and the like. The characteristic parameters of the grinding wheel mainly include abrasive, viscosity, hardness, bonding agent, shape and size. Since the grinding wheel usually works at high speed, the rotation test should be carried out before use (to ensure that the grinding wheel does not break at the working speed) and the static balance test (to prevent the machine from vibrating during work). After the grinding wheel has been in operation for a period of time, it should be trimmed to restore the grinding performance and the correct geometry.
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