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Determination of the strength of black silicon carbide
2018-11-23 09:%i:1542936271
Black silicon carbide is divided into two categories: black silicon carbide particle size sand and black silicon carbide powder. When it is used as abrasive material, the higher the strength, the better. Then, which aspects can we judge?
The ability to withstand external pressure without being sheared off when the black silicon carbide blade is quite sharp. Practice shows that the poor strength, its grinding particle grinding fast, low cutting ability, short service life. This is the black silicon carbide in addition to having a higher hardness, but also should have enough strength, in order to better grinding processing. The strength will directly affect the number of abrasive particles and the working time to maintain the maximum cutting capacity. So strength is one of the fundamental properties.
The strength of black silicon carbide is tested by the method of grinding particles under static load, that is, 5 grams of grinding sample is placed on the surface of a cylinder disk, and then another cylinder disk, and then pressurized to 30 kg/cm. , screen the crushed part of the grinding particles, and determine the ratio between the weight of the remaining uncrushed part and the total weight. The greater the ratio, the greater the strength of black silicon carbide; on the contrary, it indicates that the strength of the product is small.
Through the judgment of the strength of black silicon carbide, it avoids the mistake when you choose the product, and effectively extends the service life and saves the cost.
