CN106756207A - A kind of short process making method of high-strength highly-conductive deformation Cu Cr Ag in-situ composites - Google Patents
A kind of short process making method of high-strength highly-conductive deformation Cu Cr Ag in-situ composites Download PDFInfo
- Publication number
- CN106756207A CN106756207A CN201611087235.4A CN201611087235A CN106756207A CN 106756207 A CN106756207 A CN 106756207A CN 201611087235 A CN201611087235 A CN 201611087235A CN 106756207 A CN106756207 A CN 106756207A
- Authority
- CN
- China
- Prior art keywords
- deformation
- situ composites
- strength highly
- directional solidification
- situ
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
Abstract
A kind of short process making method of high-strength highly-conductive deformation Cu Cr Ag in-situ composites, its step is as follows：（1）The method founding Cu Cr Ag ternary alloy three-partalloy ingot castings poured into a mould using Medium frequency induction melting combination graphite mo(u)ld；（2）Ingot casting is put into zone refining directional solidification furnace and is oriented solidification treatment, Cr dendrite is axially formed the micro nano-scale fiber for aligning；（3）Material to oriented solidification treatment carries out multi-pass cold drawing deformation, the micro nano-scale fiber formed in directional solidification process is further refined into nano-scale fiber；（4）Comprehensive regulation is carried out to the intensity of material, electrical conductivity and elongation percentage etc. using final aging strengthening model.The present invention is controlled to be formed and continuously aligns micro nano-scale fiber by as-cast structure, with reference to cold drawing deformation, alloying and final aging strengthening model, shorten preparation technology flow, reduce cold deformation dependent variable, significantly increase the size of final material, and final material is obtained stabilization and good use combination property, range of application of the deformation Cu base in-situ composites in high-technology field can be widened.
Description
Technical field
The invention belongs to the preparing technical field of nonferrous materials, more particularly to a kind of large scale high-strength highly-conductive deformation
The short process making method of Cu-Cr-Ag in-situ composites.
Background technology
The development of modern science and technology proposes higher and higher requirement to the properties of conductive material, in high-strength magnetic field
Many application scenarios such as coil, large-scale integrated circuit lead frame and high-speed electric railway contact line, do not require nothing more than conduction
Material has electrical conductivity high, also requires that material has tensile strength and elongation percentage higher.At present, deformation in-situ composite algorithm is
The high-strength highly-conductive optimal method of Cu sills is prepared, it forms the second phase by casting technology in cast alloy situ, and
In alloy second machine direction that hands down is set to form the fiber for aligning through large plastometric set, wherein fiber is mutually the master of load
The undertaker is wanted, Cu matrixes mainly play conductive channel.Existing deformation in-situ composite algorithm research be mostly focused on Cu-Nb,
The alloys such as Cu-Ag, Cu-Fe and Cu-Cr, Nb and Ag category noble metals, receive the industrialized production of respective material and commercial applications
To limitation, high temperature solid solution degree of the Fe in Cu matrixes is slow compared with high and low temperature diffusion velocity, and it is tight to be solid-solution in the Fe atoms in Cu matrixes
The electrical conductivity of material is damaged again.Deformation Cu-Cr system's in-situ composites because the liquid miscibility gap of the second phase Cr and Cu is small, into
Sheet is relatively low, strengthen the extensive concern for working well and causing scientific workers.
The main preparation technology of deformation Cu-Cr systems in-situ composite is typically：Medium frequency induction melting, cast, long-time
Conditioning treatment or solution treatment, hot rolling, big plasticity cold deformation, the finished heat treatment of interspersed intermediate heat-treatment etc..Wherein, preparation
Heat treatment is, in order to eliminate or reducing the nonequilibrium freezing such as uneven components caused in casting process organizational effect, to reduce deformation
Drag；Hot rolling is, in order to eliminate or reducing the microdefect of as-cast structure, to crush the second phase dendrite, it is changed into tiny
Granular or rod-like phase；Big plasticity cold deformation be in order that in as-cast structure disorder distribution the second broken phase dendrite, gradually
It is transformed into the fiber aligned along machine direction；Appropriate intermediate heat-treatment is drawn to eliminate or reducing big plasticity cold deformation
The residual stress for rising, is beneficial to further cold deformation；Finished heat treatment is to promote the precipitation of solid solution Cr atoms to improve material
Electrical conductivity.The fiber of this preparation method is mutually broken by large plastometric set and the second phase Cr dendrite of refinement is obtained, fine
Dimension poor continuity, it is difficult to ensure the stability of material combination property under various application scenarios.Additionally, in order to obtain high intensity, should
The big plasticity cold deformation dependent variable of class material often reaches 10 even more highs.It is above-mentioned to existing deformation Cu-Cr systems In-situ reaction material
The analysis shows of preparation method for material, the method complex process, long flow path, heat, cold deformation dependent variable are big, the section chi of final material
Very little very little, fiber poor continuity, the materials'use combination property of preparation is unstable.Therefore, it is highly desirable to develop a kind of new
Large scale high-strength highly-conductive deformation Cu-Cr systems in-situ composite and preparation method thereof, simplifies the preparation technology of material, shortens material
Preparation flow, obtain heavy in section size material, the continuity of reinforcing fiber, improve material use combination property.
The content of the invention
For the deficiency that existing deformation Cu-Cr in-situ composites and technology of preparing are present, the present invention provides a kind of high-strength
Height leads the short process making method of deformation Cu-Cr-Ag in-situ composites, is combined directional solidification and cold drawing deformation, significantly
Reduce cold deformation dependent variable, shorten technological process, dramatically increase the sectional dimension of final material, form continuous enhancing mutually fine
Dimension, improves the use combination property of material.
The present invention comprising the following steps that using technical scheme：
1st, the method founding Cu-Cr-Ag ternary alloy three-partalloy ingot castings poured into a mould using Medium frequency induction melting combination graphite mo(u)ld；
2nd, ingot casting is put into zone refining-directional solidification furnace and is oriented solidification treatment, Cr dendrite is axially formed orientation
The micro nano-scale fiber of arrangement；
3rd, to it is oriented solidification treatment material carry out multi-pass cold drawing deformation, make in directional solidification process formed it is micro-nano
Level fibrous refinement is into nano-scale fiber；
4th, comprehensive regulation is carried out to the intensity of material, electrical conductivity and elongation percentage etc. using final aging strengthening model.
Cu-Cr-Ag ternary alloy three-partalloys described in above-mentioned steps 1, its formula components composition is as follows（By mass percentage）：
Chromium is 6-30；Silver is 0.008-0.200；Copper is surplus.
Directional solidification treatment described in above-mentioned steps 2, specially：By Cu-Cr-Ag alloy cast ingots be put into internal layer scribble it is resistance to
The purity of high temperature inert coating is 99.99% Al2O3In two logical earthenwares, by earthenware feeding area melting-directional solidification furnace
In, melting is carried out in the high-purity argon gas atmosphere of 300-400Pa by high frequency induction power supply, after fusing, alloy melt is with ceramics
Pipe is moved down and simultaneously cold by gallium-indium alloy liquid in the presence of base with pull-out mechanism with the speed of 50-300 μm/s together
But, directional solidification ingot casting is formed.
Multi-pass cold drawing deformation described in above-mentioned steps 3, specially：Carry out at room temperature, total cold deformation dependent variable is small
In or equal to 6.
Final aging strengthening model described in above-mentioned steps 4, specially：200-650 DEG C inside holding 0.5-8 hours, so
After cool to room temperature with the furnace.
The advantage of the invention is that：（1）Micro Ag is added in Cu-Cr bianry alloys, Cr is in Cu matrixes for reduction
Solid solubility, improves the electrical conductivity of material；（2）Processed using directional solidification and obtain the continuous micro nano-scale fiber for aligning,
Cold deformation dependent variable is reduced, increases the sectional dimension of final material；（3）By directional solidification treatment combined with cold deformation, be not required into
Row conditioning treatment and multiple intermediate heat-treatment, simplify technological process；（4）Using final aging strengthening model, according to actual need
Intensity, electrical conductivity and elongation percentage of controlled material etc. are wanted, makes final material that there is stabilization and good use combination property.
Specific embodiment
Embodiment 1
（1）Weigh the fine copper of pure chromium 6%, fine silver 0.008% and surplus respectively by mass percentage, be put into melting in intermediate frequency furnace
And pour into ingot casting with graphite mo(u)ld；
（2）By ingot casting be put into internal layer scribble high temperature resistant inert coatings purity be 99.99% Al2O3In two logical earthenwares, will make pottery
In porcelain tube feeding area melting-directional solidification furnace, melted in the high-purity argon gas atmosphere of 300Pa by high frequency induction power supply
Refining, after fusing, alloy melt is moved down in the presence of base with pull-out mechanism with earthenware with the speed of 50 μm/s
And cooled down by gallium-indium alloy liquid simultaneously, form directional solidification ingot casting；
（3）Directional solidification ingot casting is carried out into multi-pass cold drawing deformation at room temperature, total cold deformation dependent variable is 6；
（4）By the material of cold drawing deformation in 200 DEG C of inside holdings 8 hours, room temperature is then cooled to the furnace, obtain high-strength highly-conductive deformation
Cu-Cr-Ag in-situ composites.
The MPa of tensile strength 916 of deformation Cu-Cr-Ag in-situ composites manufactured in the present embodiment, electrical conductivity 82.1%
IACS, elongation percentage 4.1%.
Embodiment 2
（1）Weigh the fine copper of pure chromium 15%, fine silver 0.06% and surplus respectively by mass percentage, be put into melting in intermediate frequency furnace
And pour into ingot casting with graphite mo(u)ld；
（2）By ingot casting be put into internal layer scribble high temperature resistant inert coatings purity be 99.99% Al2O3In two logical earthenwares, will make pottery
In porcelain tube feeding area melting-directional solidification furnace, melted in the high-purity argon gas atmosphere of 350Pa by high frequency induction power supply
Refining, after fusing, alloy melt is moved down in the presence of base with pull-out mechanism with earthenware with the speed of 100 μm/s
And cooled down by gallium-indium alloy liquid simultaneously, form directional solidification ingot casting；
（3）Directional solidification ingot casting is carried out into multi-pass cold drawing deformation at room temperature, total cold deformation dependent variable is 5.5；
（4）By the material of cold drawing deformation in 400 DEG C of inside holdings 2 hours, room temperature is then cooled to the furnace, obtain high-strength highly-conductive deformation
Cu-Cr-Ag in-situ composites.
The tensile strength 1237MPa of deformation Cu-Cr-Ag in-situ composites manufactured in the present embodiment, electrical conductivity 81.2%
IACS, elongation percentage 3.9%.
Embodiment 3
（1）Weigh the fine copper of pure chromium 20%, fine silver 0.12% and surplus respectively by mass percentage, be put into melting in intermediate frequency furnace
And pour into ingot casting with graphite mo(u)ld；
（2）By ingot casting be put into internal layer scribble high temperature resistant inert coatings purity be 99.99% Al2O3In two logical earthenwares, will make pottery
In porcelain tube feeding area melting-directional solidification furnace, melted in the high-purity argon gas atmosphere of 350Pa by high frequency induction power supply
Refining, after fusing, alloy melt is moved down in the presence of base with pull-out mechanism with earthenware with the speed of 200 μm/s
And cooled down by gallium-indium alloy liquid simultaneously, form directional solidification ingot casting；
（3）Directional solidification ingot casting is carried out into multi-pass cold drawing deformation at room temperature, total cold deformation dependent variable is 5.5；
（4）By the material of cold drawing deformation in 550 DEG C of inside holdings 1 hour, room temperature is then cooled to the furnace, obtain high-strength highly-conductive deformation
Cu-Cr-Ag in-situ composites.
The tensile strength 1369MPa of deformation Cu-Cr-Ag in-situ composites manufactured in the present embodiment, electrical conductivity 80.4%
IACS, elongation percentage 3.7%.
Embodiment 4
（1）Weigh the fine copper of pure chromium 30%, fine silver 0.2% and surplus respectively by mass percentage, be put into melting in intermediate frequency furnace
And pour into ingot casting with graphite mo(u)ld；
（2）By ingot casting be put into internal layer scribble high temperature resistant inert coatings purity be 99.99% Al2O3In two logical earthenwares, will make pottery
In porcelain tube feeding area melting-directional solidification furnace, melted in the high-purity argon gas atmosphere of 400Pa by high frequency induction power supply
Refining, after fusing, alloy melt is moved down in the presence of base with pull-out mechanism with earthenware with the speed of 300 μm/s
And cooled down by gallium-indium alloy liquid simultaneously, form directional solidification ingot casting；
（3）Directional solidification ingot casting is carried out into multi-pass cold drawing deformation at room temperature, total cold deformation dependent variable is 5；
（4）By the material of cold drawing deformation in 650 DEG C of inside holdings 0.5 hour, room temperature is then cooled to the furnace, obtain high-strength highly-conductive shape
Become Cu-Cr-Ag in-situ composites.
The MPa of tensile strength 1461 of deformation Cu-Cr-Ag in-situ composites manufactured in the present embodiment, electrical conductivity 78.9%
IACS, elongation percentage 3.4%.
Claims (5)
1. a kind of short process making method of high-strength highly-conductive deformation Cu-Cr-Ag in-situ composites, it is characterised in that including following
Step：
（1）The method founding Cu-Cr-Ag ternary alloy three-partalloy ingot castings poured into a mould using Medium frequency induction melting combination graphite mo(u)ld；
（2）Ingot casting is put into zone refining-directional solidification furnace and is oriented solidification treatment, Cr dendrite is axially formed orientation
The micro nano-scale fiber of arrangement；
（3）Material to oriented solidification treatment carries out multi-pass cold drawing deformation, makes the micro-nano formed in directional solidification process
Meter level fiber is further refined into nano-scale fiber；
（4）Comprehensive regulation is carried out to the intensity of material, electrical conductivity and elongation percentage etc. using final aging strengthening model.
2. the short route preparation side of a kind of high-strength highly-conductive deformation Cu-Cr-Ag in-situ composites according to claim 1
Method, it is characterised in that step（1）In, the formula components composition of Cu-Cr-Ag ternary alloy three-partalloys is as follows（By mass percentage）：Chromium
It is 6-30；Silver is 0.008-0.200；Copper is surplus.
3. the short route preparation side of a kind of high-strength highly-conductive deformation Cu-Cr-Ag in-situ composites according to claim 1
Method, it is characterised in that step（2）In, solidification treatment is oriented to material, specially：Cu-Cr-Ag alloy cast ingots are put into interior
The purity that layer scribbles high temperature resistant inert coatings is 99.99% Al2O3In two logical earthenwares, by earthenware feeding area melting-fixed
In to consolidation furnace, melting is carried out in the high-purity argon gas atmosphere of 300-400Pa by high frequency induction power supply, after fusing, alloy melts
Body is moved down and simultaneously by gallium indium in the presence of base and pull-out mechanism with earthenware with the speed of 50-300 μm/s
Aluminium alloy is cooled down, and forms directional solidification ingot casting.
4. the short route preparation side of a kind of high-strength highly-conductive deformation Cu-Cr-Ag in-situ composites according to claim 1
Method, it is characterised in that step（3）In, multi-pass cold drawing deformation is carried out at room temperature, and total cold deformation dependent variable is less than or equal to 6.
5. the short route preparation side of a kind of high-strength highly-conductive deformation Cu-Cr-Ag in-situ composites according to claim 1
Method, it is characterised in that step（4）In, final aging strengthening model is carried out in 200-650 DEG C, 0.5-8 hours is incubated, then with stove
It is cooled to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611087235.4A CN106756207B (en) | 2016-12-01 | 2016-12-01 | A kind of short flow process of high-strength highly-conductive deformation Cu-Cr-Ag in-situ composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611087235.4A CN106756207B (en) | 2016-12-01 | 2016-12-01 | A kind of short flow process of high-strength highly-conductive deformation Cu-Cr-Ag in-situ composite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106756207A true CN106756207A (en) | 2017-05-31 |
| CN106756207B CN106756207B (en) | 2019-01-04 |
Family
ID=58915055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611087235.4A Active CN106756207B (en) | 2016-12-01 | 2016-12-01 | A kind of short flow process of high-strength highly-conductive deformation Cu-Cr-Ag in-situ composite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106756207B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518035A (en) * | 2019-01-10 | 2019-03-26 | 江西理工大学 | The preparation method and application of directional solidification Cu-Cr alloy without banded structure |
| CN113073223A (en) * | 2021-03-25 | 2021-07-06 | 南昌工程学院 | Preparation method of graphene deformation Cu-Cr series in-situ composite material |
| CN113073227A (en) * | 2021-03-25 | 2021-07-06 | 南昌工程学院 | Preparation method of high-conductivity deformed Cu-Fe series in-situ composite material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999793A (en) * | 2007-01-12 | 2007-07-18 | 焦作市森格高新材料有限责任公司 | High strength, high electroconductive copper alloy material and preparation tech. thereof |
| CN103456385A (en) * | 2013-09-04 | 2013-12-18 | 江西理工大学 | High-strength and high-conductivity Cu-Cr-Ti alloy conductor and manufacturing method thereof |
| CN104762520A (en) * | 2015-04-08 | 2015-07-08 | 江西理工大学 | High-strength high-conductivity Cu-Fe-Ag in-situ composite material prepared by using directional solidification and method for preparing same |
-
2016
- 2016-12-01 CN CN201611087235.4A patent/CN106756207B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999793A (en) * | 2007-01-12 | 2007-07-18 | 焦作市森格高新材料有限责任公司 | High strength, high electroconductive copper alloy material and preparation tech. thereof |
| CN103456385A (en) * | 2013-09-04 | 2013-12-18 | 江西理工大学 | High-strength and high-conductivity Cu-Cr-Ti alloy conductor and manufacturing method thereof |
| CN104762520A (en) * | 2015-04-08 | 2015-07-08 | 江西理工大学 | High-strength high-conductivity Cu-Fe-Ag in-situ composite material prepared by using directional solidification and method for preparing same |
Non-Patent Citations (3)
| Title |
|---|
| 刘克明等: "《形变Cu-Cr-Ag原位复合材料组织和性能》", 《稀有金属材料与工程》 * |
| 刘喜波等: "《时效对接触线用Cu-Ag-Cr合金性能的影响》", 《上海金属》 * |
| 李来军: "《连续定向凝固技术制备Cu-Ag、Cu-Cr合金线材及其组织和性能的研究》", 《中国优秀博硕士论文全文数据库（硕士）工程科技I辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518035A (en) * | 2019-01-10 | 2019-03-26 | 江西理工大学 | The preparation method and application of directional solidification Cu-Cr alloy without banded structure |
| CN113073223A (en) * | 2021-03-25 | 2021-07-06 | 南昌工程学院 | Preparation method of graphene deformation Cu-Cr series in-situ composite material |
| CN113073227A (en) * | 2021-03-25 | 2021-07-06 | 南昌工程学院 | Preparation method of high-conductivity deformed Cu-Fe series in-situ composite material |
| CN113073227B (en) * | 2021-03-25 | 2022-02-01 | 南昌工程学院 | Preparation method of high-conductivity deformed Cu-Fe series in-situ composite material |
| CN113073223B (en) * | 2021-03-25 | 2022-03-01 | 南昌工程学院 | Preparation method of graphene deformation Cu-Cr series in-situ composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106756207B (en) | 2019-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021018203A1 (en) | Copper-iron alloy slab non-vacuum down-drawing continuous casting production process | |
| CN101775520B (en) | Method for preparing high-performance Cu-Fe deformation in-situ composite material by magnetic field treatment | |
| CN101967589B (en) | Medium-strength high-toughness aluminum lithium alloy and preparation method thereof | |
| CN103276261B (en) | Preparation method of high-conductivity aluminum alloy | |
| CN101710505B (en) | Method for preparing copper magnesium alloy contact wire | |
| CN106086504B (en) | Superpower high-conductivity copper alloy as more than 400 kilometers high-speed railway contact line materials applications of speed per hour | |
| CN107805745A (en) | A kind of high-strength weathering aluminum alloy conductor rail section bar and preparation method thereof | |
| CN105543540A (en) | Copper chromium zirconium alloy and preparing method thereof | |
| CN104946936A (en) | High-conductivity rare earth duralumin monofilament material for overhead conductors | |
| CN107739878B (en) | A kind of anti-softening copper alloy of high-strength highly-conductive and preparation method thereof | |
| CN102108451A (en) | Preparation method of copper alloys with high strength and high electric conductivity | |
| CN110157944B (en) | High-thermal-conductivity copper-iron alloy material and preparation method and application thereof | |
| CN110396629A (en) | A kind of 800MPa grades of aluminum alloy extrusion section bar and preparation method thereof | |
| CN102601325A (en) | Method for preparing copper-aluminum composite bar by means of horizontally continuous casting | |
| CN102133629A (en) | Light-alloy electromagnetic suspension casting device and method | |
| CN102851527A (en) | Copper-silver-magnesium alloy contact wire and preparation method thereof | |
| CN109722560B (en) | ZrC reinforced Cu-Fe-based composite material and preparation method thereof | |
| CN106756207B (en) | A kind of short flow process of high-strength highly-conductive deformation Cu-Cr-Ag in-situ composite | |
| CN104942271A (en) | Beryllium-aluminum alloy sheet and manufacturing method thereof | |
| CN109967703B (en) | Method for continuously and efficiently preparing wide amorphous thin strip with thickness of 80-1500 mu m at high cooling speed | |
| US20080295991A1 (en) | Process for Producing Metal-Containing Castings, and Associated Apparatus | |
| CN102690971B (en) | High-strength copper alloy strip and preparation method thereof | |
| CN106086505B (en) | A kind of preparation method of superpower high-conductivity copper alloy as more than 400 kilometers high-speed railway contact line materials applications of speed per hour | |
| CN112575217A (en) | Tellurium-copper alloy for new energy and processing method thereof | |
| CN101525731B (en) | Cu-Fe original-position compound copper base material 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |