Copper-iron alloy wire rod and preparation method thereof

Abstract

The invention discloses a copper-iron alloy wire rod. The copper-iron alloy wire rod comprises the following components of, in percentage by mass, 8-50% of Fe and the balance copper and other inevitable impurities, wherein the inevitable impurities comprise the following components of, in percentage by mass, less than or equal to 0.05% of C, less than or equal to 0.1% of H, less than or equal to 0.1% of O, less than or equal to 0.01% of S and less than or equal to 0.5% of other impurities. The invention further provides a preparation method of the copper-iron alloy material. The technical means of spin-strip method powder preparation, crushing and mixing and forming and sintering are combined. According to the copper-iron alloy wire rod and the preparation method of the copper-iron alloy wire, the preparation methods of adopting cooper-iron alloy powder, powder forming and sintering blanking and billet calendar filamentation; and the copper-iron alloy wire rod and the preparation method thereof are provided, the Fe content of the prepared copper-iron alloy wire rod is larger than 8%, the component is uniform, the structure crystal grain is fine and compact, and the copper-iron alloy wire rod has high strength, conductivity and good electromagnetic shielding performance.

Description

Technical field [0001] The invention relates to the technical field of non-ferrous metal alloys, in particular to a copper-iron alloy wire and a preparation method thereof. Background technique [0002] Copper-iron alloy not only has good electrical conductivity, thermal conductivity, ductility, elasticity, antibacterial properties, etc., but also has excellent wear resistance, tensile strength, hardness and electromagnetic shielding properties due to the addition of iron. Copper-iron alloys can be processed into a variety of physical materials, such as metal ingots, bars, wires, plates, powders, tubes, etc., and can be widely used in electrical switches, lead frames, resistance welding electrodes, magnetic materials, sensors and other fields. [0003] Currently, the research and preparation of copper-iron alloy materials mainly focus on the following four categories: [0004] The first category is for the preparation of copper-iron alloys with low iron content (less than 5%) or hig...

AI Technical Summary

Problems solved by technology

If traditional smelting methods are used to prepare copper-iron alloys with high iron content, most of them need to be vacuum smelted and alloy elements such as rare earths are added, or copper-iron intermediate alloys are added, which makes the ingot prone to defects such as pores and oxidation, and the process is complex and costly. High; and with the increase of Fe content, the alloy is prone to macrosegregation during solidification

If the method of powder metallurgy is used, it is currently limited to the research of small devices, limited to Fe elements in a lower content range, or requires the addition of other alloying elements or binders, and has poor processing plasticity, and thermal processing is easy to produce components Secondary segregation and other characteristics

At present, there are still great difficulties in the production and application of Cu-Fe alloys

[0009] Therefore, in view of the difficulty in preparing copper-iron alloys with high iron content, it is far from meeting the requirements for copper-iron alloys in various fields at present. How to design a copper-iron alloy preparation method without adding alloy elements such as rare earths and copper-iron intermediate alloys has become a problem for those skilled in the art. Technical problems to be solved

Images