Multi-component alloy casting ball

A multi-element alloy and casting ball technology, which is applied in the field of multi-element alloy casting balls, can solve the problems of unsatisfactory mechanical properties of low-chromium balls and high cost of high-chromium balls, and achieve the effects of reducing broken rate, reducing chromium content, and improving strength

Inactive Publication Date: 2013-08-28
贵州省遵义市永力机电安装有限公司
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-component alloy casting ball, which solves the problems of high cost of high chromium balls and unsatisfactory mechanical properties of low chromium balls in the prior art

Method used

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Embodiment Construction

[0012] The present invention is further explained below with specific embodiments, but the following description does not constitute a limitation to the scope of claims of the present invention.

[0013] In order to make the grinding ball have a certain hardness and ensure good hardenability, in addition to a certain amount of carbon, a certain amount of hardenability-enhancing elements are usually added to the grinding ball, such as chromium, nickel, copper, molybdenum, etc. . In the chemical composition of the grinding ball, the higher the carbon content, the more beneficial it is to improve the wear resistance, but the impact toughness will decrease. In order to ensure that the grinding ball has both a certain hardness and a certain toughness, the carbon content in the grinding ball It is best to control it at 2.5% to 2.7%. Silicon is a non-carbide forming element, too high a content will have an adverse effect on hardenability, so its content is best controlled below 1.0%...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/10
Inventor 马福寿
Owner 贵州省遵义市永力机电安装有限公司
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