Multi-component alloy casting ball

Abstract

The invention discloses a multi-component alloy casting ball which comprises the following main chemical components in percentage by weight: 1.8-3.2% of carbon (C), 0.5-1.0% of silicon (Si), 0.4-0.8% of manganese (Mn), 2.0-3.8% of chromium (Cr), no more than 0.5% of molybdenum (Mo), no more than 0.5% of copper (Cu), no more than 0.5% of nickel (Ni), no more than 0.2% of niobium (Nb), no more than 0.5% of zirconium (Zr), no more than 0.5% of vanadium (V), no more than 0.01% of boron (B), no more than 0.15% of phosphorus (P), no more than 0.15% of sulfur (S), 0.5-0.6% of rare earth yttrium (Y-Re) and the balance of iron (Fe). According to the invention, the cost is saved, the corrosion resistance and high temperature resistance of the multi-component alloy casting ball in a wet grinding environment can be improved, the breakage rate can be reduced, and the hardness and shock resistance of the multi-component alloy casting ball in a dry grinding environment can be ensured.

Description

technical field

[0001] The invention relates to a multi-element alloy casting ball. Background technique

[0002] High chromium balls have the characteristics of corrosion resistance and wear resistance, but the price of chromium is relatively high, and my country’s chromium resources are scarce. Therefore, it is necessary for my country’s steel ball industry to ensure the corrosion resistance and wear resistance of steel balls while reducing the chromium content. direction of development. With the shortage of global resources, the prices of chromium, nickel, copper, molybdenum and other alloys are rising rapidly. Adding a large amount of these elements in the production of grinding balls will increase the production cost of grinding balls. In recent years, with the continuous rise in the price of chrome alloys, the price of high chromium cast iron grinding balls has also risen rapidly, which makes it unbearable for many grinding ball users. At the same time, the production...

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