Why high chrome steel balls are widely used?

High chromium cast ball has excellent hardness and is an excellent wear-resistant material. Steel balls for crafts in cement industry dry ball mills have been widely used, but high chromium cast balls have poor resistance and are simple in ball mills with a diameter of more than 3 meters. Fragmentation occurred, and the price was higher.

The commonly used materials for steel balls are: low carbon alloy, high manganese steel, high chromium cast iron, high carbon and high manganese alloy steel.

High manganese steel has good resistance, good skills and low quotation. The main feature of steel balls used in the hardware industry is that under the action of greater impact or contact stress, the outer surface will be sensitive to work hardening, and its work hardening index is higher than other materials. 5-7 times, abrasion resistance has been greatly improved;

High chromium cast iron is a kind of wear-resistant material used for steel balls for plastic products with excellent abrasion resistance, but it has low resistance, is prone to brittle fracture and is expensive.

The high carbon and high manganese alloy steel produced by the steel ball manufacturer is mainly alloy structural steel containing chromium, molybdenum and other elements. It has high hardness and good resistance. Its matrix is martensite, bainite or bainite + martensite. complex. The hardness of the steel ball is dominated by HRC60, and the impact resistance is ≥15J/CM2. Under equivalent working conditions, its service life is at least twice as fast as that of the high manganese steel ball.

However, the quenching and tempering heat treatment of the steel ball is the key. After the quenching and tempering heat treatment, not only the overall resistance is required to reach 12 Joules/CM2, but also considerable plasticity and wear resistance are required. However, the general casting skills can only reach 3-5 Joules, which causes breakage. The rate is higher, even for high chromium cast balls, so when the working conditions are strong, forgings are recommended. The manufacturing skills of steel balls are also a key factor in determining their service life. If there are defects in the external or internal manufacturing of the steel ball, such as shrinkage, cracks, crystal penetration, etc., it will not only reduce the function of the steel ball, but even cause the steel ball to break. Therefore, it is necessary to develop reasonable casting, casting and heat treatment skills in the production of steel balls.

In summary, the functional raw materials of high chromium steel balls have a great connection with construction skills. When selecting steel balls, the company also needs to choose according to the working conditions of its own company. Feige Steel Balls is committed to maintaining our focus on quality, striving for excellence, and fostering innovation. We aim to provide customers with top-tier products and professional services that set us apart in the industry. As we look forward to the future, we are eager to collaborate with you to create a more promising and prosperous path ahead.