Grinding steel ball excellent performance and sintering temperature

- Jun 09, 2018 -

Grinding steel ball in the process of production of its products have the best performance of the hardness and toughness of the best match, in use because of its good anti-wear properties (Ordinary Portland cement steel forging single warehouse wear ≤ 20g / ton of cement; such as With a roller press steel forging single store wear ≤12g/ton cement, broken rate is very low (broken rate ≤ 0.5%). The cement plant uses wear-resistant steel forging/(3) molding using isostatic pressing technology to overcome defects such as hollowness, delamination, low density, and non-uniform density in other molding methods.

Grinding steel ball shapes and additives will directly affect isostatic pressing to a certain extent. During the operation, the molding pressure and holding time will affect the density, sintering shrinkage, and sintering temperature of the green body. Therefore, Use suitable raw materials and scientific molding processes to ensure that the green body has good sintering characteristics.

The excessively high sintering temperature of the Grinding steel ball and the holding time of the process will directly promote the growth of the aluminum oxide crystals. During the operation, the amount of the liquid phase increases, so that not only the strength can be reduced, but also the temperature is too low and the sintering density decreases. The abrasion resistance of the ball is reduced. If the sintering temperature is not suitable, even if the content of Al2O3 is high, the wear resistance is not necessarily good. The key depends on the phase composition and microstructure of the ceramic ball. Using low-temperature rapid firing technology, significant energy-saving benefits can be obtained, and at the same time, the crystal grain growth of alumina ceramic balls can be suppressed, and the strength and toughness of the products can be improved, thereby improving the wear resistance of the porcelain balls.

Grinding steel ball can effectively adopt the formula of its SiO2-CaO-MgO ternary system during the production process. Grinding steel forging is to a certain extent, mainly for the working conditions of its cement industry, and it is developed for production. To a certain extent, it is a major feature of the company, to a certain extent, it has very unique features and advantages, strong adaptability, high cost performance, and further expand the space for users to save energy and reduce consumption.

It is extremely important to grind the powder with suitable conversion rate of aluminum oxide for steel forging. To some extent, the conversion rate will have a great influence on the quality of alumina ceramic balls. If the conversion rate of Al2O3 is high, its calcination temperature is relatively high. The hardness of the material increases the grinding difficulty of the powder, and the sintering activity is small. If the sintering temperature is increased, the grain growth will not only increase the cost, but also increase the grain growth. Not conducive to the formation of a uniform microstructure, wear resistance but decreased.

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