Written by LI Ju-cang, ZHAO Ai-min, WANG Li-na (University of Science and Technology Beijing, Beijing 100083, China) Abstract： The effects of heat treatment on the hardness, impact toughness, manufactured process, and microstructure used different heat treatment technology of dia50 mm Cr26 high chromium cast iron grinding ball have been studied. The results show that hardness of […]
ABSTRACT: The heat treatment process of high chromium grinding ball produced by sand coated iron mould casting process was researched. Shrinkage and porosity defects have not been discovered after cutting along the diameter of grinding ball. The grinding ball in cast state has poor mechanical properties. Mechanical properties of grinding ball significantly increase after heat treatment After heat […]
These kinds of wear-resistant grinding balls are used in wear-resistant industries, wear-resistant steel ball types. Today, we will introduce the production process of several kinds of grinding ball.
In order to solve the problems of low production efficiency and high production cost caused by the decline of ore grade, the advantages of large-scale ball mill are gradually highlighted and widely used. It is necessary to use the large-diameter ball in the large-scale ball mill, so it is important to prepare high-performance large-diameter forging […]
Sand-coating technology in steel mold is a new technology for producing wear-resistant grinding media balls. It has the advantages of both iron mold and sand mold. It has the characteristics of chilled iron mold, small stress and good toughness in Sand Mould Casting This is a very big breakthrough for the production of wear-resistant grinding […]
The so-called heat treatment is through the high chromium wear-resistant grinding ball heating, heat preservation and then to the cooling process, after such a process, the wear-resistant grinding ball internal structure will have a certain change to achieve the desired performance.
With the large-scale ball mill and more and more using of large-scale ball mill, the comprehensive performance of large-diameter ball grinding requirements are higher, consumption is higher. The main failure forms of large diameter grinding balls are breakage, burst, and low wear resistance, etc. In view of this situation, considering the reasonable distribution of hardness […]
Based on the effect of Cr in Cr-based WEAR-RESISTANT CAST IRON, three kinds of wear-resistant cast iron grinding balls with diameter of 110mm and different Cr content were designed by means of metallographic technique, electron microscope technique, TEM technique and X-ray diffraction technique, the macro hardness, microhardness, impact toughness and wear properties of the material […]
For example, it is a reasonable and feasible heat treatment process of grinding ball to save energy, equipment, field, good quenching effect, less investment, and big output by using the residual heat after forging, rolling and casting. According to incomplete statistics, the steel and iron balls produced by this process now have an annual output of […]
The loss of roundness and the loss of roundness of the grinding body do exist in the use of the grinding body (grinding media ball, grinding cylpebs). The loss of roundness of the grinding body reduces the grinding effect and reduces the output of the grinding machine, but due to the lack of specific statistical data, […]