Technical advancement of alloy steel grinding balls for mining

- Jan 03, 2019 -

Alloy steel grinding balls for mining are developed for the large-scale grinding mills in the metallurgical mines and steel industry and the corrosive working conditions. The products can form high-hardness chromium-tungsten alloys by adding tungsten and higher chromium. The material strengthens the matrix structure and undergoes metamorphism treatment of the heavy rare earth. It effectively improves the primary crystal of the high chromium tungsten alloy white iron and makes the eutectic carbide form discontinuous and obtusely distributed, which weakens the separation of the carbide from the matrix. effect.

At the same time, the addition of heavy rare earth metamorphic treatment can effectively remove impurities such as sulfur, phosphorus and gas in molten iron, improve the purity of molten iron, effectively purify grain boundaries, refine grains, improve the impact toughness and strength of products, and internal organization. It is dense and greatly reduces the corrosion of crystals in alloy steel ore grinding balls during use.

Because the alloy steel grinding balls for mining has high alloy content, strong corrosion resistance, high hardness, good wear resistance, and extremely low wear and breakage rate, the filling rate and the addition amount of the grinding body are reduced, and the labor of the worker is reduced. Strength; improved fine powder quality and Taiwan time production. Through user feedback, its wear resistance is nearly three times that of ordinary cast low chrome balls and forged steel balls, and the breaking rate is extremely low. The user has obtained obvious direct benefits and large indirect benefits, product quality is in a leading position.

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