CN114262817A - Conductor electromagnetic shielding copper-iron alloy wire and preparation method thereof - Google Patents
Conductor electromagnetic shielding copper-iron alloy wire and preparation method thereof Download PDFInfo
- Publication number
- CN114262817A CN114262817A CN202111634889.5A CN202111634889A CN114262817A CN 114262817 A CN114262817 A CN 114262817A CN 202111634889 A CN202111634889 A CN 202111634889A CN 114262817 A CN114262817 A CN 114262817A
- Authority
- CN
- China
- Prior art keywords
- copper
- iron alloy
- alloy wire
- iron
- wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 229910000640 Fe alloy Inorganic materials 0.000 title claims abstract description 46
- 239000004020 conductor Substances 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000956 alloy Substances 0.000 claims abstract description 18
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 17
- 229910052742 iron Inorganic materials 0.000 claims abstract description 12
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 9
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims description 21
- 238000005242 forging Methods 0.000 claims description 18
- 238000002844 melting Methods 0.000 claims description 15
- 230000008018 melting Effects 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 14
- 238000010891 electric arc Methods 0.000 claims description 11
- 238000000137 annealing Methods 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 6
- 239000004615 ingredient Substances 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 238000005491 wire drawing Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 3
- 229910017827 Cu—Fe Inorganic materials 0.000 abstract description 4
- 230000035882 stress Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 230000008646 thermal stress Effects 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Images
Abstract
The invention provides a conductor electromagnetic shielding copper-iron alloy wire and a preparation method thereof, which can solve the technical problem that the strength and the electromagnetic shielding performance of the conventional Cu-Fe alloy wire need to be further enhanced. The electromagnetic shielding copper-iron alloy wire for the conductor is characterized by comprising the following components in percentage by mass: 5 to 8 percent of Fe, 0.002 to 0.05 percent of La and Ce, and the balance of Cu and inevitable impurities. The copper-iron alloy wire has the highest tensile strength of 865-925 MPa, the elongation of 5-8% and the conductivity of 45-62 IACS, and can be used as an excellent electromagnetic shielding material to be applied to various fields.
Description
Technical Field
The invention belongs to the technical field of metal smelting and processing, and particularly relates to a conductor electromagnetic shielding copper-iron alloy wire and a preparation method thereof.
Background
Along with the rapid development of modern electronic information, more and more electronic and electrical devices are put into use, and meanwhile, electromagnetic waves with different frequencies and energies generated by the electronic devices are flooding the lives of people with a new pollution source, and the electromagnetic radiation hazard caused by the electromagnetic waves mainly comprises three major aspects of negative effects on human health, effects on natural environment and interference on the electronic devices.
The Cu-Fe alloy has good prospect in large-scale industrial preparation and application due to low cost, rich raw materials, huge magnetoresistance effect and special physical properties. The copper-iron material has both high electrical conductivity and high magnetic permeability, and can inhibit or weaken an electric field and a magnetic field at the same time, and control radiation propagation of electromagnetic waves from one region to another region. Therefore, the copper-iron alloy material is an ideal electromagnetic shielding functional material, but the strength and the electromagnetic shielding performance of the existing Cu-Fe alloy wire need to be further enhanced.
Disclosure of Invention
The invention provides a conductor electromagnetic shielding copper-iron alloy wire and a preparation method thereof, which can solve the technical problem that the strength and the electromagnetic shielding performance of the conventional Cu-Fe alloy wire need to be further enhanced.
The technical scheme is that the conductor electromagnetic shielding copper-iron alloy wire is characterized by comprising the following components in percentage by mass: 5 to 8 percent of Fe, 0.002 to 0.05 percent of La and Ce, and the balance of Cu and inevitable impurities.
Further, the ratio of La to Ce is 1: (1-1.5).
Further, La was 0.01% and Ce was 0.015%.
The invention also provides a preparation method of the conductor electromagnetic shielding copper-iron alloy wire, which is characterized by comprising the following steps of:
(1) preparing materials: weighing raw materials, wherein the raw materials comprise high-purity iron with the purity of more than or equal to 99.990%, electrolytic copper with the purity of more than or equal to 99.990% and Cu-La and Cu-Ce intermediate alloy;
(2) arc melting: placing the raw materials weighed by the ingredients into an electric arc melting furnace, controlling an electric arc gun to melt the raw materials, uniformly mixing the components of a melt through electromagnetic stirring, and cooling to obtain an iron-copper alloy ingot;
(3) hot forging: preserving the heat of the copper-iron alloy ingot at 850-950 ℃ for 1-2 hours, and then performing hot forging by using an air hammer to obtain a round rod-shaped copper-iron alloy rod, wherein the forging deformation is controlled to be 20-30%;
(4) stress relief annealing: keeping the temperature of the copper-iron alloy rod at 500 ℃ for 4 h;
(5) primary drawing forming: carrying out primary drawing on the copper-iron alloy rod on a drawing machine;
(6) intermediate annealing: keeping the temperature at 400-;
(7) drawing and forming again: and drawing the annealed alloy wire on the wire drawing machine again.
Further, in the step (5), the total deformation amount of the primary drawing is 30-50%, and the pass deformation amount is 8-10%.
Further, the step (7) comprises: the total deformation of the secondary drawing is 40-60%, and the pass deformation is 6-8%.
The invention has the beneficial effects that: the copper-iron alloy wire prepared by the invention has low gas content, less inclusions, uniform tissue components and no macroscopic and microscopic defects such as Cu and Fe enrichment, and can be used as an excellent electromagnetic shielding material to be applied to various fields; the copper-iron alloy wire has the highest tensile strength of 865-925 MPa, the elongation of 5-8% and the conductivity of 45-62 IACS.
Drawings
Fig. 1 is a stress-strain curve of a hot-forged copper-iron alloy rod according to example 1 of the present invention.
Fig. 2 is a stress-strain curve of the final redrawn cu-fe alloy wire of example 1 of the present invention.
FIG. 3 shows an alloy hysteresis loop of an iron-copper alloy ingot after arc melting according to example 1 of the present invention.
Fig. 4 is an alloy hysteresis loop of the copper-iron alloy wire product after redrawing in example 1 of the present invention.
FIG. 5 is a photograph of a metallographic structure of an iron-copper alloy ingot of example 1 of the present invention after arc melting, at a magnification of 500.
Fig. 6 is a metallographic structure photograph of a finished product of a copper-iron alloy wire according to example 1 of the present invention, at a magnification of 1000 times.
Detailed Description
Example 1
A conductor electromagnetic shielding copper-iron alloy wire comprises the following components in percentage by mass: fe 8%, La 0.01%, Ce 0.015%, and the balance of Cu and unavoidable impurities.
The preparation method of the conductor electromagnetic shielding copper-iron alloy wire is characterized by comprising the following steps of:
(1) preparing materials: weighing raw materials, namely high-purity iron with the purity of more than or equal to 99.990%, electrolytic copper with the purity of more than or equal to 99.990% and Cu-La and Cu-Ce intermediate alloys (in examples 1-3, the Cu-La and Cu-Ce intermediate alloys are purchased from Wutaicheng metal material products, Inc.);
(2) arc melting: putting the raw materials weighed by the ingredients into an electric arc melting furnace, controlling an electric arc gun to melt the raw materials (the raw materials are melted by repeated melting and magnetic stirring until all blocks are completely melted, adjusting the electric arc melting through current, keeping the temperature in a melting crucible at 1600-;
(3) hot forging: preserving the heat of the copper-iron alloy ingot at 950 ℃ for 1.5 hours, and then performing hot forging by using an air hammer to obtain a round rod-shaped copper-iron alloy rod, wherein the forging deformation is controlled to be 20%;
(4) stress relief annealing: the copper-iron alloy rod is kept warm for 4 hours at 500 ℃, and residual thermal stress generated in hot forging is eliminated;
(5) primary drawing forming: carrying out primary drawing on the copper-iron alloy rod on a drawing machine, wherein the total deformation of the primary drawing is 40%, and the pass deformation is 8-10%;
(6) intermediate annealing: keeping the temperature at 400 ℃ for 5h to promote the precipitation of solid solution elements in copper and iron phases;
(7) drawing and forming again: and (3) re-drawing the annealed alloy wire on a wire drawing machine, wherein the total deformation of the re-drawing is 50%, the pass deformation is 6-8%, and a wire with the diameter of 10.0mm is obtained.
As can be seen from the graphs in FIGS. 1 and 2, after drawing, the tensile strength of the wire is improved, the maximum tensile strength can reach 865MPa, the elongation is 5%, and the electrical conductivity of the wire is 45 IACS%. As can be seen from FIGS. 3 and 4, the saturation magnetization of the wire rod was increased from 42 emu/g to 44.7emu/g by the drawing deformation. As can be seen from FIGS. 5 and 6, the interface bonding of the wire rods was good and the deformability was strong.
Example 2
A conductor electromagnetic shielding copper-iron alloy wire comprises the following components in percentage by mass: 5% of Fe, 0.001% of La, 0.001% of Ce, and the balance of Cu and inevitable impurities.
The preparation method of the conductor electromagnetic shielding copper-iron alloy wire is characterized by comprising the following steps of:
(1) preparing materials: weighing raw materials, wherein the raw materials comprise high-purity iron with the purity of more than or equal to 99.990%, electrolytic copper with the purity of more than or equal to 99.990% and Cu-La and Cu-Ce intermediate alloy;
(2) arc melting: placing the raw materials weighed by the ingredients into an electric arc melting furnace, controlling an electric arc gun to melt the raw materials, uniformly mixing the components of a melt through electromagnetic stirring, and cooling to obtain an iron-copper alloy ingot;
(3) hot forging: keeping the temperature of the copper-iron alloy ingot at 850 ℃ for 2 hours, and then performing hot forging by using an air hammer to obtain a round rod-shaped copper-iron alloy rod, wherein the forging deformation is controlled to be 20%;
(4) stress relief annealing: the copper-iron alloy rod is kept warm for 4 hours at 500 ℃, and residual thermal stress generated in hot forging is eliminated;
(5) primary drawing forming: carrying out primary drawing on the copper-iron alloy rod on a drawing machine, wherein the total deformation of the primary drawing is 40%, and the pass deformation is 8-10%;
(6) intermediate annealing: keeping the temperature at 450 ℃ for 4.5h to promote the precipitation of solid solution elements in copper and iron phases;
(7) drawing and forming again: and (3) re-drawing the annealed alloy wire on a wire drawing machine, wherein the total deformation of the re-drawing is 50%, the pass deformation is 6-8%, and a wire with the diameter of 10.0mm is obtained.
The tensile strength of the wire can reach 925MPa, the elongation is 8%, the conductivity of the wire is 62IACS, and the saturation magnetization is 37.8 emu/g.
Example 3
A conductor electromagnetic shielding copper-iron alloy wire comprises the following components in percentage by mass: 7% of Fe, 0.02% of La, 0.03% of Ce, and the balance of Cu and inevitable impurities.
The preparation method of the conductor electromagnetic shielding copper-iron alloy wire is characterized by comprising the following steps of:
(1) preparing materials: weighing raw materials, wherein the raw materials comprise high-purity iron with the purity of more than or equal to 99.990%, electrolytic copper with the purity of more than or equal to 99.990% and Cu-La and Cu-Ce intermediate alloy;
(2) arc melting: placing the raw materials weighed by the ingredients into an electric arc melting furnace, controlling an electric arc gun to melt the raw materials, uniformly mixing the components of a melt through electromagnetic stirring, and cooling to obtain an iron-copper alloy ingot;
(3) hot forging: preserving the heat of the copper-iron alloy ingot at 900 ℃ for 1 hour, and then performing hot forging by using an air hammer to obtain a round rod-shaped copper-iron alloy rod, wherein the forging deformation is controlled to be 20%;
(4) stress relief annealing: the copper-iron alloy rod is kept warm for 4 hours at 500 ℃, and residual thermal stress generated in hot forging is eliminated;
(5) primary drawing forming: carrying out primary drawing on the copper-iron alloy rod on a drawing machine, wherein the total deformation of the primary drawing is 40%, and the pass deformation is 8-10%;
(6) intermediate annealing: keeping the temperature at 500 ℃ for 4h to promote the precipitation of solid solution elements in copper and iron phases;
(7) drawing and forming again: and (3) re-drawing the annealed alloy wire on a wire drawing machine, wherein the total deformation of the re-drawing is 50%, the pass deformation is 6-8%, and a wire with the diameter of 10.0mm is obtained.
The tensile strength of the wire can reach 880MPa at most, the elongation is 6%, the conductivity of the wire is 50 IACS, and the saturation magnetization is 47.3 emu/g.
Claims (6)
1. The electromagnetic shielding copper-iron alloy wire for the conductor is characterized by comprising the following components in percentage by mass: 5 to 8 percent of Fe, 0.002 to 0.05 percent of La and Ce, and the balance of Cu and inevitable impurities.
2. A conductive electromagnetically shielded copper-iron alloy wire as claimed in claim 1, wherein the ratio of La to Ce is 1: (1-1.5).
3. A conductive electromagnetically shielded copper-iron alloy wire as claimed in claim 2, wherein La is 0.01% and Ce is 0.015%.
4. A method for preparing the conductive electromagnetically shielded copper-iron alloy wire as claimed in claim 1, comprising the steps of:
(1) preparing materials: weighing raw materials, wherein the raw materials comprise high-purity iron with the purity of more than or equal to 99.990%, electrolytic copper with the purity of more than or equal to 99.990% and Cu-La and Cu-Ce intermediate alloy;
(2) arc melting: placing the raw materials weighed by the ingredients into an electric arc melting furnace, controlling an electric arc gun to melt the raw materials, uniformly mixing the components of a melt through electromagnetic stirring, and cooling to obtain an iron-copper alloy ingot;
(3) hot forging: preserving the heat of the copper-iron alloy ingot at 850-950 ℃ for 1-2 hours, and then performing hot forging by using an air hammer to obtain a round rod-shaped copper-iron alloy rod, wherein the forging deformation is controlled to be 20-30%;
(4) stress relief annealing: keeping the temperature of the copper-iron alloy rod at 500 ℃ for 4 h;
(5) primary drawing forming: carrying out primary drawing on the copper-iron alloy rod on a drawing machine;
(6) intermediate annealing: keeping the temperature at 400-;
(7) drawing and forming again: and drawing the annealed alloy wire on the wire drawing machine again.
5. The method of claim 4, wherein in step (5), the total deformation of the primary drawing is 30-50%, and the secondary deformation is 8-10%.
6. The method of claim 4, wherein step (7) comprises: the total deformation of the secondary drawing is 40-60%, and the pass deformation is 6-8%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111634889.5A CN114262817A (en) | 2021-12-29 | 2021-12-29 | Conductor electromagnetic shielding copper-iron alloy wire and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111634889.5A CN114262817A (en) | 2021-12-29 | 2021-12-29 | Conductor electromagnetic shielding copper-iron alloy wire and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114262817A true CN114262817A (en) | 2022-04-01 |
Family
ID=80831214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111634889.5A Pending CN114262817A (en) | 2021-12-29 | 2021-12-29 | Conductor electromagnetic shielding copper-iron alloy wire and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114262817A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103789564A (en) * | 2014-01-23 | 2014-05-14 | 上海交通大学 | Powder metallurgy preparation method of carbon nanotube reinforced aluminum alloy composite material |
| CN104988350A (en) * | 2015-07-30 | 2015-10-21 | 张连仲 | High-ductility copper and iron alloy, preparation method thereof, and copper and iron alloy wire |
| CN105177344A (en) * | 2015-07-30 | 2015-12-23 | 张连仲 | Cu-Fe alloy wire and preparing method thereof |
| CN105671356A (en) * | 2014-11-21 | 2016-06-15 | 北京有色金属研究总院 | High-strength and high-conductivity copper alloy shielding material and preparation method thereof |
| CN111826545A (en) * | 2020-06-24 | 2020-10-27 | 东南大学 | Copper-iron alloy material and preparation method and application thereof |
| CN113088750A (en) * | 2021-03-19 | 2021-07-09 | 宁波金田铜业(集团)股份有限公司 | Copper-iron alloy wire and preparation method thereof |
-
2021
- 2021-12-29 CN CN202111634889.5A patent/CN114262817A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103789564A (en) * | 2014-01-23 | 2014-05-14 | 上海交通大学 | Powder metallurgy preparation method of carbon nanotube reinforced aluminum alloy composite material |
| CN105671356A (en) * | 2014-11-21 | 2016-06-15 | 北京有色金属研究总院 | High-strength and high-conductivity copper alloy shielding material and preparation method thereof |
| CN104988350A (en) * | 2015-07-30 | 2015-10-21 | 张连仲 | High-ductility copper and iron alloy, preparation method thereof, and copper and iron alloy wire |
| CN105177344A (en) * | 2015-07-30 | 2015-12-23 | 张连仲 | Cu-Fe alloy wire and preparing method thereof |
| CN111826545A (en) * | 2020-06-24 | 2020-10-27 | 东南大学 | Copper-iron alloy material and preparation method and application thereof |
| CN113088750A (en) * | 2021-03-19 | 2021-07-09 | 宁波金田铜业(集团)股份有限公司 | Copper-iron alloy wire and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103388090B (en) | A kind of high-strength, high connductivity, deep drawing quality rare-earth copper alloy and preparation method thereof | |
| CN111826545B (en) | Copper-iron alloy material and preparation method and application thereof | |
| CN104694808A (en) | High-entropy alloy with dispersion nano-sized precipitate strengthening effect and preparing method thereof | |
| CN103382535B (en) | A kind of high-strength, high connductivity, deep drawing quality copper alloy and preparation method thereof | |
| CN111549253B (en) | Rare earth copper-iron alloy, preparation method and application | |
| CN106868379A (en) | A kind of high-entropy alloy with big magnetostriction coefficient and preparation method thereof | |
| CN105671356B (en) | A kind of copper alloy with high strength and high conductivity shielding material and preparation method thereof | |
| CN107858579A (en) | The method for improving high-entropy alloy magnetic property is heat-treated using Constant charge soil | |
| CN103114234A (en) | Alloy with excellent room-temperature soft magnetic property and mechanical property, and preparation method thereof | |
| CN103131894A (en) | High-elasticity and high-conductivity copper alloy and production method thereof | |
| CN109811182A (en) | A kind of aerospace high-intensitive, high conductivity copper alloy stranded conductor and preparation method thereof | |
| CN110952041A (en) | Fe-Mn-Ni-Cr four-component high-entropy alloy | |
| CN111101057A (en) | Soft magnetic alloy strip for ultralow-temperature magnetic shielding and preparation method thereof | |
| US20230257855A1 (en) | High-strength and ductile multicomponent precision resistance alloys and fabrication methods thereof | |
| CN113943874B (en) | Copper alloy material for 5G base station power connector and preparation method thereof | |
| JP2021529262A (en) | High hardness and high conductivity Cu-Ag-Sc alloy and its manufacturing method | |
| CN110016588A (en) | A kind of tensile strength is greater than the metastable β Titanium-alloy of 1300MPa | |
| CN108034874A (en) | A kind of magnesium-rare earth containing molybdenum-rhenium and preparation method thereof | |
| CN114262817A (en) | Conductor electromagnetic shielding copper-iron alloy wire and preparation method thereof | |
| CN106756208A (en) | A kind of copper chromium zirconium lanthanum alloy | |
| CN104087768B (en) | Method for improving performance of nickel-chromium-iron electrothermal alloy | |
| CN113215439A (en) | High-strength copper alloy plate and production process thereof | |
| CN105803246B (en) | A kind of high strength high conductivity copper base composite material and preparation method thereof | |
| CN116411202A (en) | Copper-tin alloy wire and preparation method thereof | |
| CN114540657B (en) | Rare earth copper alloy material with broadband electromagnetic shielding function and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220401 |
|
| RJ01 | Rejection of invention patent application after publication |