High abrasion proof re-synthesizing cast iron grinding ball and production method thereof

Abstract

The invention relates to a high abrasion proof resynthesizing cast iron grinding ball for a ball grinding mill and a preparation method thereof. The method reduces the content of carbon in material on the premise that carbide is formed in materials, thereby reducing the contents of chrome and molybdenum in the material and simultaneously controlling the content of other elements, so that the obtained material of the grinding ball has good overall mechanical property and service performance. Compared with a No. 45 steel forging ball, the abrasion proof property of the grinding ball is improved by 3 to 10 times, so that both the consumption of steel products and the recourses are saved. In the method, cast iron is melted and synthesized by using an intermediate frequency electric furnace and a large amount of scrap steel, steel scraps and other renewable resources are utilized, so that not only the quality of synthetic cast iron products is improved and the performance is stabler, but also the pollution to environment is reduced.

Description

technical field [0001] The invention relates to a high wear-resistant recycled synthetic cast iron grinding ball for a ball mill and a production method thereof. Background technique [0002] At present, in order to recycle scrap iron and steel in China, cupola furnaces are usually used to smelt regenerated iron, and then secondary melting is used to produce iron castings. The ratio of scrap steel is usually 20-30%, which leads to high repeated energy consumption and serious pollution; in order to solve the problem of industrial waste utilization in developed countries, To save energy and reduce costs, in the 1970s, the technology of using cheap scrap iron and steel to produce synthetic cast iron began to be promoted. Foreign literature reported that induction furnaces were used to directly smelt synthetic cast iron, but due to the higher ratio of scrap steel when smelting synthetic cast iron, The more difficult the smelting to ensure the stability of the material, the curre...

AI Technical Summary

Problems solved by technology

In recent years, with the shortage of coke and other energy materials and the rise in price, as well as the emphasis on environmental protection, the production of cupolas is not only costly, but also difficult to meet the requirements of environmental protection

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