High-temperature and high-conductivity iron-base alloy

An iron-based alloy, high electrical conductivity technology, applied in the field of high-temperature resistant and high-conductive iron-based alloy materials, can solve the problems of inability to use under high temperature conditions, easy to soften and deform, poor electrical conductivity, etc., to achieve excellent electrical conductivity and mechanical properties, The effect of reducing the high temperature expansion coefficient and improving the corrosion resistance

Inactive Publication Date: 2016-02-24
GUIZHOU BRANCH CHINA ALUMINUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the melting point and strength of copper and aluminum are lower than that of iron, they are easy to soften and deform at high temperatures, so they cannot be used under high temperature conditions.
[0004] At present, the conductive materials used in electrometallurgy and electrochemistry are mainly high-quality carbon steel, but its conductivity is worse than that of copper and aluminum, and a lot of electric energy is wasted when it runs for a long time under high current.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The weight ratio composition of the high-temperature and high-conductivity iron-based alloy material of the present invention is: Cu20%, rare earth metal 0.3%, Mo2%, W2.5%, Ni1%, Co3%, Al0.1%, Mg0.2%, Ca0. 1%, Zn0.3%, impurities C, S, P≤0.035%, the balance is Fe, and the total content of each chemical component is 100%. The conductivity at 300°C is 15.8%IACS, the conductivity at 600°C is about 12.9%IACS, the conductivity at 900°C is about 10.2%IACS, the melting point is 1440°C, and the tensile strength at room temperature is about 312MPa. The elongation at break is about 32.1%.

Embodiment 2

[0027]The weight ratio composition of the high-temperature and high-conductivity iron-based alloy material of the present invention is: Cu15%, rare earth metal 0.5%, Mo4%, Ni1.5%, Co2%, Al0.15%, Mg0.15%, Ca0.1%, Zn0.3%, impurities C, S, P≤0.035%, the balance is Fe, and the total content of each chemical component is 100%. The conductivity at 300°C is 15.4%IACS, the conductivity at 600°C is about 12.5%IACS, the conductivity at 900°C is about 9.9%IACS, the melting point is 1410°C, and the tensile strength at room temperature is about 302MPa. The elongation at break is about 31.1%.

Embodiment 3

[0029] The weight ratio composition of the high-temperature and high-conductivity iron-based alloy material of the present invention is: Cu21%, rare earth metal 0.2%, W3%, Ni1.7%, Co2.3%, Al0.1%, Mg0.25%, Ca0.15 %, Zn0.3%, impurities C, S, P≤0.035%, the balance is Fe, and the total content of each chemical component is 100%. The conductivity at 300°C is 15.9%IACS, the conductivity at 600°C is about 13.1%IACS, the conductivity at 900°C is about 10.2%IACS, the melting point is 1421°C, and the tensile strength at room temperature is about 309MPa. The elongation at break is about 30.9%.

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Abstract

The invention relates to a high temperature resisting high-conductivity iron-base alloy material suitable for the technical field of electrometallurgy and electrochemistry, in particular to high-temperature and high-conductivity iron-base alloy. The high-temperature and high-conductivity iron-base alloy is characterized in that the high-temperature and high-conductivity iron-base alloy is prepared from, by weight, 1%-30% of Cu, 0.1%-0.5% of rare earth metal, 0.1%-5% of one or two of Mo and W, 0.1%-5% of one or two of Ni and Co, 0.1%-1% of at least two of Al, Mg, Ca and Zn, 0.035% of impurities C, S and P or less and the balance iron, and the sum of the chemical composition contents is 100%. The high-temperature and high-conductivity iron-base alloy has the beneficial effects of being good in conductivity, small in expansion coefficient, excellent in mechanical performance and resistant to corrosion.

Description

technical field [0001] A high-temperature and high-conductivity iron-based alloy relates to a high-temperature-resistant and high-conductivity iron-based alloy material suitable for the fields of electrometallurgy and electrochemical technology. Background technique [0002] Conductor materials are generally used in electrometallurgy and electrochemical processes. The nature of the conductor material is very important to the whole process. The conductor material must have good electrical conductivity and mechanical properties, and at the same time it needs to be corrosion resistant. Many electrometallurgical and electrochemical processes are carried out at high temperatures, so they need to be used at high temperatures. It is very necessary to develop high-temperature and high-conductivity materials with good performance. [0003] Copper and aluminum have high electrical conductivity, thermal conductivity and excellent process performance, and are widely used in various ind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/16
Inventor 周云峰史志荣李昌林柴登鹏汪艳芳刘卓王玉
Owner GUIZHOU BRANCH CHINA ALUMINUM IND
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