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Chemical Analysis and Application of Rare Earth Elements in Nonferrous Metals

2019-05-13

Everyone knows that metal rare earths know, then do you know the chemical analysis and application of rare earth elements of non-ferrous metals? Now Xiaobian will share with you!

Rare earths can change the existence of impurities in non-ferrous metals through chemical reactions. There are often metal or non-metallic impurities in non-ferrous metals. Metal rare earth elements can react with these impurity metals, forming different compounds with Liu and iron, silicon, etc. It can change the inherent solid solution of aluminum metal, resulting in its resistivity decreasing. For example, rare earth elements and non-metal elements form a high melting point compound by chemical reaction, which leads to refinement of the grain network structure of the nonferrous metal, effectively stabilizes the grain boundary, thereby forming a high melting point intermetallic compound, and improving the colored The overall performance of the metal.

The addition of rare earth elements can reduce the content of hydrogen in non-ferrous metals. Hydrogen, especially hydrogen incorporated into liquid metals, will exist in the form of atomic states, and then become macromolecules, causing cracks in non-ferrous materials, which will seriously reduce overall performance. And damage to its processing, so reducing the amount of hydrogen in non-ferrous metals is increasingly attracting scientists' attention. Because of this, adding an appropriate amount of rare earth elements can effectively reduce the hydrogen content. For example, studies have shown that 0.190-0.3% of rare earths can significantly reduce the hydrogen content of aluminum and its alloys, achieving very good hydrogen reduction effect. The element can change the surface tension of the alloy. It is shown that as long as the surface tension of the substrate is reduced, the moldability and castability of the metal or alloy can be effectively improved. The formability and castability of the metal are effective for the properties of the metal and its alloy. One of the standards, a large number of documents show that the addition of an appropriate amount of rare earth in aluminum and aluminum alloy can effectively reduce the surface tension.

The above is the chemical analysis and application of rare earth elements of non-ferrous metals shared by Baotou Fangyuan Rare Earth Alloy Co., Ltd. To learn more about the rare earth elements of metals, please pay attention to our company! Sincerely at your service!

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