CN102031464B - Copper-steel fiber copper-based composite material and preparation method thereof - Google Patents
Copper-steel fiber copper-based composite material and preparation method thereof Download PDFInfo
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- CN102031464B CN102031464B CN 201010600804 CN201010600804A CN102031464B CN 102031464 B CN102031464 B CN 102031464B CN 201010600804 CN201010600804 CN 201010600804 CN 201010600804 A CN201010600804 A CN 201010600804A CN 102031464 B CN102031464 B CN 102031464B
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Abstract
The invention relates to a copper-steel fiber copper-based composite material. The material comprises 60 to 96 weight percent of Cu and the balance of steel wires. After repeated cold drawing, the steel wires are deformed matching a substrate along a deformation direction in a drawing process until a fiber structure is formed. A preparation method of the copper-steel fiber copper-based composite material comprises the following steps of: arranging the steel wires in the same direction and putting into a casting mold, heating and smelting electrolytically-pure Cu in a medium-frequency induction furnace, casting into the casting mold in which the steel wires are embedded at the temperature of between 1,200 and 1,300 DEG C so as to obtain ingots; and thermally forging the cast ingots along a direction vertical to the arrangement direction of the steel wires at the temperature of between 800 and 850 DEG C to obtain sheared billets and performing cold drawing repeatedly along the arrangement direction of the steel wires at room temperature until a required diameter is obtained. A wider intensity and electric conductivity matching range can be obtained.
Description
Technical field
The present invention relates to a kind of high-strength high-conductivity copper-based material, be specifically related to copper-steel fiber matrix material and preparation method thereof.
Background technology
Copper is because of having the every field that excellent conduction, heat conduction, erosion resistance are widely used in social production.But fine copper intensity, hardness are lower, even if through work hardening, intensity and hardness still can not satisfy people's request for utilization.Along with the high speed development of science and technology, the HS and the high conduction performance of electro-conductive material also proposed increasingly high requirement, therefore developing new copper alloy with high strength and high conductivity material becomes one of present copper alloy hot research fields.
The fiber reinforcement method is meant and in the copper matrix, adds the fiber that aligns artificially or adopt certain process original position in the copper matrix to generate the second phase fiber that fiber is as main supporting body, and matrix then is the media of transmitted load.This method can keep higher electric conductivity and intensity comprehensive matching, and the preparation method is simple simultaneously, has become a research direction of combarloy sill.
The Cu-base composites research that adds fortifying fibre at present mainly contains fiber composite such as copper-Yin, copper-niobium, copper-chromium, because boundary strength is low, the intensity of material is under some influence.The directional freeze of eutectic alloy can be used for preparing the growth in situ Cu-base composites, but because curing condition is harsh, preparation technology is difficult to control, and the alloy system that is fit to is very limited, and relevant research still is in the starting stage.Compare with directional solidification method with fiber composite such as copper-Yin, copper-niobium, copper-chromium; Copper-steel fiber matrix material is with low cost; Also have more outstanding advantage simultaneously: 1. only need melting copper in the fusion process, steel wire is arranged in the mould by fixed-direction and gets final product, and melting technology is simple; 2. can improve copper-steel wire interface bond strength through the method for using Coppered Steel Wire.3. can heat-treat through the mass percent of adjustment steel and to the copper in the cold drawing process-steel fiber Cu-base composites, the intensity that obtains wide region cooperates with electric conductivity.Therefore, aspect technical scale preparation and range of application, copper-steel composite material has very big potentiality.
Summary of the invention
The present invention is directed to above-mentioned technical problem, a kind of copper-steel composite material and preparation method thereof is provided, the method that obtains electric conductivity and strength matching through thermal treatment is provided simultaneously.
The technical scheme that the present invention adopts is following:
A kind of copper-steel fiber Cu-base composites, the content of Cu is 60-96%wt in the material, and all the other are steel wire, and after the multi-pass cold drawing, steel wire produces distortion with the matrix coupling until becoming filamentary structure along the deformation direction in drawing process.
The preparation method of a kind of copper-steel fiber Cu-base composites arranges steel wire and to be placed in the mold by same direction, the pure Cu of electrolysis is poured in the mold that presets steel wire at 1200-1300 ℃ and becomes ingot in medium-frequency induction furnace after the heat fused; Ingot casting carries out forge hot along the vertical direction of steel wire discharging and becomes excellent base under 800-850 ℃, at room temperature carries out the multi-pass cold drawing along the steel wire emission direction subsequently, until required diameter.
Beneficial effect: 1, the steel wire in copper-steel composite material of the present invention until becoming fiber fines shape structure, has kept higher electric conductivity along the distortion of generation of deformation direction and matrix coupling, and the intensity of material significantly raises simultaneously.
2, the intensity of material significantly increases with the increase of cold drawing degree;
3, in the cold drawing process, the copper-steel fiber Cu-base composites of selection different distortion rate carries out repeatedly anneal at 350 ℃ and can obtain required electric conductivity and strength matching.
Description of drawings
Copper after Fig. 1 cold drawing-steel composite material vertical section metallographic structure figure, transversely arranged silk is the steel wire of filamentary structure among the figure.
Embodiment
Listed material composition in the table 1:
Each component content by percentage to the quality in table 1 table
The starting material that prepare above-mentioned two kinds of materials have adopted the standard cathode copper of high purity (99.98%), 45# steel wire that diameter is 1.5mm.Steel wire is arranged by fixed-direction and is placed in the mold, and Cu melting in ZG101-10B type vacuum medium-frequency induction furnace is cast into ingot to 1300 ℃ after the heat fused in mold; Ingot casting carries out forge hot at 800-850 ℃ and becomes excellent base, continues cold drawing subsequently.In the cold drawing process, select the copper-steel fiber Cu-base composites of different distortion rate to advance repeatedly process annealing processing to obtain required electric conductivity and strength matching at 350 ℃.
Correlated performance is listed in the table 2:
Table 2
Can be known that by last table and Fig. 1 the steel wire in copper of the present invention-steel wire matrix material produces distortion with the matrix coupling until becoming fiber fines shape structure along the deformation direction, has kept higher electric conductivity, the intensity of material significantly raises simultaneously.The intensity of material increases with the increase of cold drawing degree; In the cold drawing process, select the copper-steel fiber Cu-base composites of different distortion rate to carry out repeatedly process annealing processing at 350 ℃, can obtain wider electric conductivity and strength matching.
Embodiment 1
A kind of copper-steel fiber Cu-base composites, the content of Cu is 60-96%wt in the material, all the other are steel wire; After the multi-pass cold drawing; Steel wire produces distortion with the matrix coupling until becoming filamentary structure along the deformation direction in drawing process, in the present embodiment, the content of Cu is chosen as 60%wt, 86%wt or 96%wt; All the other are steel wire, and it is that 10% 50 passes of drawing obtain the most carefully being the drawing diameter of 0.3mm that present embodiment can carry out single pass heavy deformation.
Embodiment 2
The preparation method of a kind of copper-steel fiber Cu-base composites arranges steel wire and to be placed in the mold by same direction, the pure Cu of electrolysis is poured in the mold that presets steel wire at 1200-1300 ℃ and becomes ingot in medium-frequency induction furnace after the heat fused; Ingot casting carries out forge hot along the vertical direction of steel wire discharging and becomes excellent base under 800-850 ℃, at room temperature carries out the multi-pass cold drawing along the steel wire emission direction subsequently, until required diameter.In order to obtain different electric conductivitys and strength matching, present embodiment carries out the anneal under 350 ℃ to the copper in the cold drawing process-steel fiber Cu-base composites, for example: when diameter is 18mm, 12mm, 9mm, carry out 350 ℃, the anneal of 3h respectively.
At present; For satisfying the demand of VLSI, developing intensity is about 600MPa, and electric conductivity is 75～80%IACS; And the copper alloy frame material with good over-all properties, the copper-steel fiber Cu-base composites of the present invention's preparation satisfies the requirement of above-mentioned industrial application performance.
Claims (1)
1. the preparation method of copper-steel fiber Cu-base composites is characterized in that, steel wire is arranged by same direction be placed in the mold, and the pure Cu of electrolysis is poured in the mold that presets steel wire at 1200-1300 ℃ and becomes ingot in medium-frequency induction furnace after the heat fused; Ingot casting carries out forge hot along the vertical direction of steel wire discharging and becomes excellent base under 800-850 ℃, at room temperature carries out the multi-pass cold drawing along the steel wire emission direction subsequently; Until required diameter; And the copper in the cold drawing process-steel fiber Cu-base composites is carried out the anneal under 350 ℃, and the content of Cu is 60-96%wt in the said material, and all the other are steel wire; After the multi-pass cold drawing, steel wire produces distortion with the matrix coupling until becoming filamentary structure along the deformation direction in drawing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010600804 CN102031464B (en) | 2010-12-22 | 2010-12-22 | Copper-steel fiber copper-based composite material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010600804 CN102031464B (en) | 2010-12-22 | 2010-12-22 | Copper-steel fiber copper-based composite material and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102031464A CN102031464A (en) | 2011-04-27 |
| CN102031464B true CN102031464B (en) | 2012-12-19 |
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| CN 201010600804 Expired - Fee Related CN102031464B (en) | 2010-12-22 | 2010-12-22 | Copper-steel fiber copper-based composite material and preparation method thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744412B (en) * | 2012-03-01 | 2014-03-12 | 浙江吉利汽车研究院有限公司 | Method for preparing iron nanofiber |
| CN103215529A (en) * | 2013-04-18 | 2013-07-24 | 沈阳理工大学 | Steel/stainless steel fiber reinforced composite copper foil and manufacturing method thereof |
| CN103266288B (en) * | 2013-05-21 | 2015-04-08 | 沈阳理工大学 | Continuous-steel-fiber-reinforced zinc-base composite material and preparation method thereof |
| CN104368622B (en) * | 2014-09-29 | 2016-02-10 | 石家庄德安旺金属科技有限公司 | A kind of metallic fiber production technology |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1095969A (en) * | 1994-04-04 | 1994-12-07 | 江阴金属制品研究所 | The manufacture method of single wire drawing high-strength copper-clad steel wire |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61266535A (en) * | 1985-05-21 | 1986-11-26 | Nissan Motor Co Ltd | Copper-base composite material |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1095969A (en) * | 1994-04-04 | 1994-12-07 | 江阴金属制品研究所 | The manufacture method of single wire drawing high-strength copper-clad steel wire |
Non-Patent Citations (1)
| Title |
|---|
| 史晓娟.集束拉拔法制备钢纤维增强铜基复合导线.《大连交通大学学报》.2009,第30卷(第1期), * |
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