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High-strength and high-conductivity copper-iron alloy and preparation method thereof

A copper-iron alloy and high-conductivity copper technology, applied in the field of copper alloys, can solve the problems of limited strengthening effect and limited strength of pure iron, and achieve the effects of inhibiting component segregation, improving mechanical properties, and high strength

Active Publication Date: 2020-09-08
NINGBO POWERWAY ALLOY MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, iron in these copper-iron alloy materials strengthens the alloy in the form of almost pure iron (the solid solubility of copper in iron is extremely small). Since the strength of pure iron is limited, the strengthening effect of pure iron on copper-iron alloys is also limited. limit

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The mass percent composition of the copper-iron alloy is Fe: 5.0wt%, C: 0.0125wt%, Mo: 0.05wt%, La: 0.01wt%, and the balance is Cu and unavoidable impurities.

[0025] The process flow of the copper-iron alloy is: Fe-C-Mo master alloy preparation→copper-iron alloy casting→extrusion→pickling→drawing;

[0026] 1) Preparation of Fe-C-Mo alloy: according to 0.25wt% C, 1.0wt% Mo, the balance is Fe for batching, using pure Fe, Fe-C master alloy and Mo-Fe master alloy as raw materials, put into medium frequency induction melting Melting in a furnace, the melting temperature is 1580°C;

[0027] 2) Copper-iron alloy melting and casting: weighing according to the component distribution ratio of copper-iron alloy materials, adding electrolytic Cu, Fe-C-Mo master alloy, and Cu-La master alloy into the melting furnace respectively, casting temperature 1300 ° C, casting speed 5.0 m / h, electromagnetic stirring current 80A, frequency 6Hz, cooling water pressure 0.02MPa;

[0028] 3) E...

Embodiment 2

[0033] The mass percent composition of the copper-iron alloy is Fe: 6.5wt%, C: 0.0195wt%, Mo: 0.08wt%, Ce: 0.80wt%, and the balance is Cu and unavoidable impurities.

[0034] The process flow of the copper-iron alloy is: Fe-C-Mo master alloy preparation→copper-iron alloy casting→extrusion→pickling→drawing;

[0035] 1) Preparation of Fe-C-Mo alloy: according to 0.3wt% C, 1.2wt% Mo, and the balance is Fe for batching, using pure Fe, Fe-C master alloy and Mo-Fe master alloy as raw materials, put them into medium frequency induction melting Melting in a furnace, the melting temperature is 1680°C;

[0036] 2) Copper-iron alloy melting and casting: weighing according to the composition ratio of copper-iron alloy materials, adding electrolytic Cu, Fe-C-Mo master alloy, and Cu-Ce master alloy into the melting furnace respectively, casting temperature 1390 ° C, casting speed 3.5 m / h, electromagnetic stirring current 100A, frequency 8Hz, cooling water pressure 0.04MPa;

[0037]3) Extr...

Embodiment 3

[0042] The mass percent composition of the copper-iron alloy is Fe: 8.0wt%, C: 0.04wt%, Mo: 0.08wt%, Ce: 0.60wt%, and the balance is Cu and unavoidable impurities.

[0043] The process flow of the copper-iron alloy is: Fe-C-Mo master alloy preparation→copper-iron alloy casting→extrusion→pickling→drawing;

[0044] 1) Preparation of Fe-C-Mo alloy: according to 0.5wt% C, 1.0wt% Mo, and the balance is Fe for batching, using pure Fe, Fe-C master alloy and Mo-Fe master alloy as raw materials, put them into medium frequency induction melting Melting in a furnace, the melting temperature is 1580°C;

[0045] 2) Copper-iron alloy melting and casting: weighing according to the component distribution ratio of copper-iron alloy materials, adding electrolytic Cu, Fe-C-Mo master alloy, and Cu-Ce master alloy into the melting furnace respectively, casting temperature 1300 ° C, casting speed 5.0 m / h, electromagnetic stirring current 100A, frequency 8Hz, cooling water pressure 0.04MPa;

[004...

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Abstract

The invention relates to a high-strength and high-conductivity copper-iron alloy. The high-strength and high-conductivity copper-iron alloy is characterized by comprising, by mass, 5.0-15.0 wt% of Fe,0.0125-0.12 wt% of C, 0.05-0.30 wt% of Mo, 0.01-1,00 wt% La or / and Ce, and the balance Cu and unavoidable impurities. As the specific proportion of C and Mo are added in the copper-iron alloy, the electric conductivity is not reduced while the matrix strength is improved, the addition of La or / and Ce is beneficial to inhibiting the segregation of iron in the copper-iron alloy, and the performanceis more stable.

Description

technical field [0001] The invention relates to a copper alloy, in particular to a high-strength and high-conductivity copper-iron alloy and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of my country's aerospace, high-speed rail trains, microelectronics and vacuum electronic devices and other industries, the demand for high-performance copper and copper alloy materials is more urgent, especially in many service occasions, copper and copper Alloy materials are required to have high electrical conductivity and high mechanical properties. [0003] Copper-iron alloys are a class of alloy materials mainly composed of copper and iron elements, and are immiscible alloys. Since the solubility of iron in copper alloys is very low at room temperature, most iron elements in copper-iron alloys exist alone in copper alloys. Therefore, in general, iron elements in copper-iron alloys have little effect on the conductivity of copper...

Claims

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Application Information

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IPC IPC(8): C22C9/00C22C1/03
CPCC22C9/00C22C1/03
Inventor 孟祥鹏冷哲魏建军孙文声宋玉波孙军伟
Owner NINGBO POWERWAY ALLOY MATERIAL
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