Product Details
Grinding ball and grinding cylpebs are grinding media of the grinding machine. Their main function is to grind the material in the grinding machine to meet the use standard. Put an appropriate amount of material and grinding media into the grinding machine at the same time, start the grinding equipment, the grinding media and the material runs with the equipment, collides, and the grinding media continuously crushes the material, and finally reaches the use standard
In the field of wear-resistant cast balls, there are two types of steel balls running in ball mills or semi-autogenous mills, one is forged steel balls, and the other is cast steel balls, both of which are grinding steel balls, suitable for mines and construction , metallurgy, chemical industry, cement and other fields
1.Raw Material:
Cast ball: The basic material is scrap steel, machine tool iron filings, old steel wire, chromium, etc., and its carbon content is 2.2---3.5, which is actually the composition of iron. Therefore, to be precise, the cast ball should be called iron ball. Advantages: cheap raw materials and wide range of materials; Disadvantages: non-uniform and unstable materials.
2. Production process:
The casting ball is to melt waste materials such as scrap steel and scrap iron in an intermediate frequency electric furnace. During the melting process of the furnace materials, an appropriate amount of alloys such as ferrochrome and ferromanganese are added, and the chemical composition is modulated in the furnace. After the temperature of the molten iron reaches the requirements of the process, the molten iron is injected. mold forming.
3.Hardness: The surface hardness of high chromium cast balls is above HRC58 after qualified heat treatment, and the hardness difference of core surface is between 3-5 HRC; the surface hardness of low chromium casting balls is about HRC45.
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