Copper-iron intermediate alloy and preparation method and application thereof

An intermediate alloy, copper-iron technology, applied in the field of non-ferrous metal alloys, can solve the problems of limiting the application research of Cu-Fe alloys, low solid solubility, etc., and achieve the effects of refined grains, stable chemical composition, and uniform distribution

Active Publication Date: 2015-10-14
张连仲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The extremely low solid solubility of Fe in Cu severely limits the application research of Cu-Fe alloys

Method used

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  • Copper-iron intermediate alloy and preparation method and application thereof
  • Copper-iron intermediate alloy and preparation method and application thereof
  • Copper-iron intermediate alloy and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] 1. The specific consumption of each raw material for preparing the copper-iron master alloy masterbatch in this embodiment is (wt.%): Fe=48%; Ni=0.25%; La=0.02%; Ce=0.04%; Cu=51.69%; The composition of the master alloy masterbatch (1#) is shown in Table 1, and the metallographic microscopic morphology of the master alloy is shown in figure 2 ,Depend on figure 2 It can be seen from the data in Table 1 that the chemical composition of the copper-iron master alloy prepared by the present invention is stable, and the composition of the upper, middle and lower parts of the ingot is uniform; the Fe element is evenly distributed in the master alloy without segregation.

[0073] 2. Prepare high ductility CuFe alloy, the chemical composition is designed as (wt.%): Fe=4.8%, Cu=95.2%. The composition of the prepared copper-iron alloy ingot is shown in Table 2. The chemical composition of the ingot is stable, and the composition of the upper, middle and lower parts of the ingot ...

Embodiment 2

[0076] 1. The specific amount of each raw material for preparing the copper-iron master alloy masterbatch in this embodiment is (wt.%): Fe=51%; Ni=0.28%; La=0.025%; Ce=0.045%; Cu=48.65%;

[0077] 2. Prepare high ductility CuFe alloy, the chemical composition is designed as (wt.%): Fe=5.0%, Cu=95.0%. The composition of the prepared copper-iron alloy ingot is as shown in Table 2, the chemical composition of the ingot is stable, and the upper, middle and lower components of the ingot are uniform;

[0078] 3. The CuFe alloy ingot is processed into Ф0.06mm wire. After testing, the tensile strength of the Ф0.06mm wire is ≥400N / mm 2 ; The elongation rate is 13-16%; the copper-iron alloy also has excellent electromagnetic shielding effect.

Embodiment 3

[0080] 1. The process of preparing the copper-iron master alloy masterbatch in this embodiment is the same as in embodiment 1.

[0081] 2. Prepare high ductility CuFe alloy, the chemical composition is designed as (wt.%): Fe=5.2%, Cu=94.8%. The composition of the prepared copper-iron alloy ingot is as shown in Table 2, the chemical composition of the ingot is stable, and the upper, middle and lower components of the ingot are uniform;

[0082] 3. The CuFe alloy ingot is processed into Ф0.06mm wire. After testing, the tensile strength of the Ф0.06mm wire is ≥400N / mm 2 ; The elongation rate is 13-16%; the copper-iron alloy also has excellent electromagnetic shielding effect.

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Abstract

The invention discloses copper-iron intermediate alloy and a preparation method and application thereof, and belongs to the technical field of non-ferrous alloy. The intermediate alloy comprises, by weight, 45-60% of Fe, 0.20-0.35% of Ni, more than 0 of RE and the balance Cu; RE is composed of rare earth elements of La and Ce. The preparation process of the intermediate alloy comprises the steps of raw material preparation, material dosing, vacuum melting, master batch component analysis, cast ingot surface milling, hot rolling, acid pickling, washing and shearing, wherein the materials are sheared to a long strip shape for standby use. According to the prepared copper-iron intermediate alloy, the chemical components are stable, and components in the upper portion, the middle portion and the lower portion of a cast ingot are even; Fe in the intermediate alloy is evenly distributed without segregation; the copper-iron intermediate alloy is the foundation for subsequent production of Cu-Fe series alloy.

Description

technical field [0001] The invention relates to the technical field of nonferrous metal alloys, in particular to a copper-iron master alloy and its preparation method and application. The prepared master alloy is used to produce high-performance copper-iron alloys. Background technique [0002] Metal materials have a wide range of applications, but there are very few reports on copper-iron alloys at home and abroad. Some characteristics of Cu-Fe alloys can be predicted from the knowledge of metal materials: (1) The melting point should be higher than Cu and lower than Fe, If it is used as a vacuum electrical contact material to replace Cu alloy, its arc ablation resistance can be improved; (2) Both pure copper and pure iron have good ductility, so Cu-Fe alloy should also have this property ; (3) substituting part of Cu with Fe can reduce the cost of Cu material; (4) has electromagnetic shielding effect. [0003] figure 1 The phase diagram of the Cu-Fe binary alloy is shown...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C38/16C22C1/03
Inventor 张连仲孙海忠肖凯薛鑫
Owner 张连仲
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