CN106756135B - A kind of preparation method of alumina dispersion-strenghtened copper alloy bar material - Google Patents
A kind of preparation method of alumina dispersion-strenghtened copper alloy bar material Download PDFInfo
- Publication number
- CN106756135B CN106756135B CN201611004207.1A CN201611004207A CN106756135B CN 106756135 B CN106756135 B CN 106756135B CN 201611004207 A CN201611004207 A CN 201611004207A CN 106756135 B CN106756135 B CN 106756135B
- Authority
- CN
- China
- Prior art keywords
- copper
- alloy
- aluminium
- temperature
- internal oxidition
- 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.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1078—Alloys containing non-metals by internal oxidation of material in solid state
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
- C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
- C22C32/0021—Matrix based on noble metals, Cu or alloys thereof
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of preparation method of alumina dispersion-strenghtened copper alloy bar material, which comprises the steps of: (1) alloy melting, prepares copper-aluminium alloy ingots；(2) alloy wire is prepared；(3) alloy wire gradient internal oxidition obtains copper-aluminium oxide alloy wire rod；(4) alloy densifies, and is pressed into bar or plate coarse fodder using two-step sintering method and hot extrusion；(5) alloy is processed, and by the bar or plate coarse fodder further progress drawing or machine-shaping of swaging, is prepared into required alloy bar material finished product by specification.Using the alumina dispersion-strenghtened copper-base alloy bar material material of preparation of the invention, process flow is simple, it is with short production cycle, high-efficient, production cost is low, alumina dispersion-strenghtened copper-base alloy bar material material obtained have high-compactness, high strength & high electric-conduction and high softening temperature characteristic.
Description
Technical field
The present invention relates to metal-base composites technical fields, and in particular to a kind of alumina dispersion-strenghtened copper alloy bar material
Preparation method.
Background technique
Dispersion-strengthened Cu is a kind of with excellent high temperature intensity while but also with the performance function material of good conductive thermal conductivity
Material.As important functional material, dispersion-strengthened Cu is widely used in microwave device, welding electrode, leads of IC frame
Frame, change-over switch, alloy bar material material etc..By adding a small amount of Second Phase Particle, dispersion-strengthened Cu is keeping copper conjunction
Golden good conductive is thermally conductive while improving its mechanical strength again.The essence of dispersion-strengtherning is hindered using the ultrafine dust of even dispersion
Hinder dislocation motion to improve the mechanical property of material under the high temperature conditions, the invigoration effect of the second hardening constituent of even dispersion was both
The elevated temperature strength and hardness of material are improved, and the electric conductivity of alloy will not be substantially reduced, so that it is good to have the material
Comprehensive performance.Common dispersed oxide mutually has Al2O3、Cr2O3、Zr2O3、SiO2、TiO2, MgO, CaO etc., wherein again with
Al2O3It is the most commonly used.The preparation method of dispersion strengthening copper alloy mainly has: powder metallurgic method, mechanical alloying method, compound electric are heavy
Area method, mixing casting, coprecipitation, sol-gel method, reactive spray-deposition method, internal oxidation etc., wherein internal oxidation is
The preferred approach of large-scale production dispersion strengthening copper alloy at present.Traditional internal oxidation prepares Al2O3Dispersion strengthening copper alloy materials
Process flow mainly have: Cu-Al melting → water atomization or nitrogen atomization powder → with oxidant mix → in closed container
Restored in high temperature (800-100 DEG C) internal oxidition → hydrogen extra oxygen → jacket → vacuumize, sealing → compacting (hot isostatic pressing or
Hot static pressure etc.) → hot extrusion molding.Material at high temperature that this traditional internal oxidation process is produced and mechanical property at room temperature
It is all very superior with electric property, but complex process, production cycle are long, while unstable product quality.These problems are greatly
Hinder the popularization and application of internal oxidition production technology.In order to solve this problem, the present invention is focused on and is carried out in preparation process
Improvement, simplifies process flow, increases controllability.
Summary of the invention
Present invention solves the technical problem that it is to provide a kind of aluminum oxide dispersion acid bronze alloy bar material and preparation method,
By reasonable element with preparation technology parameter is when optimized, a kind of highly conductive, high heat resistance, high intensity dispersion-strengtherning is prepared
Copper alloy.
The technical solution of the present invention is as follows: a kind of alumina dispersion-strenghtened copper-base alloy bar material material, is in copper-based material
The aluminium of 0.3-1.5wt% is added, preparation method comprises the steps of:
(1) alloy melting: taking the copper of 98.5-99.7%, the aluminium of 0.3-1.5% by weight percentage, melts in intermediate frequency furnace
It is smelt copper-aluminium alloy ingots；
(2) it prepares alloy wire: the copper-aluminium alloy ingots being removed into impurity through row turnery processing, is containing 5-8% water
15-30min is impregnated in the aqueous solution of based metal surfaces detergent, temperature control carries out true after 40-60 DEG C, clear water are rinsed well
Sky is dry, copper-aluminium alloy ingots after removal surface impurity and greasy dirt is then drawn into copper-aluminium alloy wires, by the copper-
Aluminium alloy wires cuts into the line segment of 2-3cm on cutting machine；
(3) alloy wire gradient internal oxidition: the copper cut off-aluminium alloy wires sealing is embedded in equipped with Cu2O:
In the internal oxidition device of the mixed-powder of Al2O3:Cu=6:2:2, the quality of the mixed-powder is the copper-aluminium alloy wires
6-8 times, successively in interior oxidation furnace through normal pressure internal oxidition, it is middle pressure internal oxidition and high pressure internal oxidition three phases gradient in oxygen
Change processing, obtains copper-aluminium oxide alloy wire rod；
(4) alloy densifies: after the copper-aluminium oxide alloy wire rod is cooled to room temperature and is cleaned and dried, using two steps
Sintering process is sintered, and sintering temperature is 600-980 DEG C, and time 2-4h obtains sintered blank, and the sintered blank is carried out hot extrusion
It is pressed into bar or plate coarse fodder；
(5) alloy is processed: the bar or plate coarse fodder being carried out drawing or machine-shaping of swaging, are prepared by specification
Required alloy bar material finished product.
Further, copper described in step (1) is the cathode copper that purity is 99.9%, and the aluminium is that purity is 99.9%
Above industrial refined aluminium.
Further, the technological parameter of drawing wires described in step (2) are as follows: squeezing temperature is 650-850 DEG C, extrusion ratio
For 230-250, alloy wire having a size of
Further, step (3) the gradient internal oxidation process parameter are as follows: normal pressure internal oxidition furnace temperature is 850-900 DEG C, is protected
Warm 30-45min；Middle pressure internal oxidition furnace temperature is 780-830 DEG C, air pressure 1.2-2atm, keeps the temperature 30-60min；High pressure internal oxidition furnace
Temperature is 680-720 DEG C, air pressure 5.0-6.0atm, keeps the temperature 60-120imin.
Further, the technological parameter of two-step sintering described in step (4) are as follows: by the copper-aluminium oxide alloy powder
1-2h is kept the temperature under 600-650 DEG C of lower temperature, is then brought rapidly up to 850-980 DEG C of sintering 1-2h.
Further, Hot Extrusion Parameters described in step (4) are as follows: squeezing temperature is 860-900 DEG C, and extrusion ratio is
200-220。
Further, the high temperature high-pressure resistant material that internal oxidition device described in step (3) uses preferably uses red copper,
The internal oxidition device mainly includes copper tube, red copper inner cover and refractory wass, and the red copper length of tube is 30-100cm,
Internal diameter is 5-10cm, and with a thickness of 0.6-1cm, the red copper inner cover is with a thickness of 0.4-0.6cm, diameter 4.5-9.5cm, red copper
Respectively having width at pipe inner distance both ends 4-6cm is the retaining ring of 0.5-0.7cm, is first covered copper tube one end in red copper when use
The sealing of Gai Houyong refractory wass, is added the mixed-powder, is sealed after covering the other end with red copper inner cover with refractory wass；
The internal oxidition device high temperature high voltage resistant is functional, and leakproofness is strong, has inner cover protection not pollute to mixed-powder.
The invention has the benefit that (1) production efficiency is high, the period is short, using alloy wire gradient internal oxidition, line
Material specific surface area is easier to more greatly internal oxidition；(2) high temperature first in low-temperature insulation is being risen to for a period of time using two-step sintering method, it can be with
The consistency for promoting material, to promote the physical property of material.Using the alumina dispersion-strenghtened copper-base of preparation of the invention
Alloy bar material material, process flow is simple, with short production cycle, high-efficient, production cost is low, alumina dispersion-strenghtened copper obtained
Based alloy bar material has the characteristic of high-compactness, high strength & high electric-conduction and high softening temperature.
Specific embodiment
Embodiment 1:
A kind of alumina dispersion-strenghtened copper-base alloy bar material material is the aluminium that 0.3wt% is added in copper-based material, system
Preparation Method comprises the steps of:
(1) alloy melting: 99.7% copper, 0.3% aluminium are taken by weight percentage, copper-aluminium is smelted into intermediate frequency furnace
Alloy pig；The copper is the cathode copper that purity is 99.9%, and the aluminium is the industrial refined aluminium that purity is 99.9% or more；
(2) it prepares alloy wire: the copper-aluminium alloy ingots being removed into impurity through row turnery processing, water base containing 5%
15min is impregnated in the aqueous solution of metal surface detergent, temperature is controlled at 40 DEG C, and clear water is dried in vacuo after rinsing well,
Then copper-aluminium alloy ingots after removal surface impurity and greasy dirt is drawn into copper-aluminium alloy wires, the technological parameter of drawing wires
Are as follows: squeeze temperature be 650 DEG C, extrusion ratio 230, alloy wire having a size ofCopper-the aluminium alloy wires is being cut off
The line segment of 2cm is cut on machine；
(3) alloy wire gradient internal oxidition: the copper cut off-aluminium alloy wires sealing is embedded in equipped with Cu2O:
In the internal oxidition device of the mixed-powder of Al2O3:Cu=6:2:2, the quality of the mixed-powder is the copper-aluminium alloy wires
6 times, successively in interior oxidation furnace through normal pressure internal oxidition, it is middle pressure internal oxidition and high pressure internal oxidition three phases gradient internal oxidition
Processing, obtains copper-aluminium oxide alloy wire rod, the gradient internal oxidation process parameter are as follows: normal pressure internal oxidition furnace temperature is 850 DEG C, is protected
Warm 30min；Middle pressure internal oxidition furnace temperature is 780 DEG C, air pressure 1.2atm, keeps the temperature 30min；High pressure internal oxidition furnace temperature is 680 DEG C, gas
Pressure is 5.0atm, keeps the temperature 60imin；Further, the high temperature high-pressure resistant material that the internal oxidition device uses, preferably makes
With red copper, the internal oxidition device mainly includes copper tube, red copper inner cover and refractory wass, and the red copper length of tube is
30cm, internal diameter 5cm, with a thickness of 0.6cm, the red copper inner cover is with a thickness of 0.4cm, diameter 4.5cm, on the inside of copper tube away from
From respectively there is width to be the retaining ring of 0.5cm at the 4cm of both ends, when use first will copper tube one end cover red copper inner cover after use refractory wass
Sealing, is added the mixed-powder, is sealed after covering the other end with red copper inner cover with refractory wass；The internal oxidition dress
It is functional to set high temperature high voltage resistant, leakproofness is strong, has inner cover protection not pollute to mixed-powder.
(4) alloy densifies: after the copper-aluminium oxide alloy wire rod is cooled to room temperature and is cleaned and dried, using two steps
Sintering process is sintered, technological parameter are as follows: the copper-aluminium oxide alloy powder is kept the temperature 1h under 600 DEG C of lower temperatures, so
After be brought rapidly up to 850 DEG C of sintering 1h and obtain sintered blank, the sintered blank is subjected to hot extrusion and is pressed into bar or plate coarse fodder,
Hot Extrusion Parameters are as follows: squeezing temperature is 860 DEG C, extrusion ratio 200；
(5) alloy is processed: the bar or plate coarse grain being carried out drawing or machine-shaping of swaging, are prepared by specification
Required alloy bar material finished product.
Embodiment 2:
A kind of alumina dispersion-strenghtened copper-base alloy bar material material is the aluminium that 0.85wt% is added in copper-based material,
Preparation method comprises the steps of:
(1) alloy melting: 99.15% copper, 0.85% aluminium are taken by weight percentage, copper-is smelted into intermediate frequency furnace
Aluminium alloy ingots；The copper is the cathode copper that purity is 99.9%, and the aluminium is the industrial refined aluminium that purity is 99.9% or more；
(2) it prepares alloy wire: the copper-aluminium alloy ingots being removed into impurity through row turnery processing, is containing 5-8% water
25min is impregnated in the aqueous solution of based metal surfaces detergent, it is dry that temperature control carries out vacuum after 50 DEG C, clear water are rinsed well
It is dry, copper-aluminium alloy ingots after removal surface impurity and greasy dirt is then drawn into copper-aluminium alloy wires, the technique of drawing wires
Parameter are as follows: squeeze temperature be 750 DEG C, extrusion ratio 240, alloy wire having a size ofBy the copper-aluminium alloy wires
The line segment of 2.5cm is cut on cutting machine；
(3) alloy wire gradient internal oxidition: the copper cut off-aluminium alloy wires sealing is embedded in equipped with Cu2O:
In the internal oxidition device of the mixed-powder of Al2O3:Cu=6:2:2, the quality of the mixed-powder is the copper-aluminium alloy wires
7 times, successively in interior oxidation furnace through normal pressure internal oxidition, it is middle pressure internal oxidition and high pressure internal oxidition three phases gradient internal oxidition
Processing, obtains copper-aluminium oxide alloy wire rod, the gradient internal oxidation process parameter are as follows: normal pressure internal oxidition furnace temperature is 870 DEG C, is protected
Warm 40min；Middle pressure internal oxidition furnace temperature is 800 DEG C, air pressure 1.6atm, keeps the temperature 45min；High pressure internal oxidition furnace temperature is 700 DEG C, gas
Pressure is 5.5atm, keeps the temperature 90imin；Further, the high temperature high-pressure resistant material that the internal oxidition device uses, preferably makes
With red copper, the internal oxidition device mainly includes copper tube, red copper inner cover and refractory wass, and the red copper length of tube is
65cm, internal diameter 7cm, with a thickness of 0.8cm, the red copper inner cover is with a thickness of 0.5cm, diameter 6.5cm, on the inside of copper tube away from
From respectively there is width to be the retaining ring of 0.6cm at the 5cm of both ends, when use first will copper tube one end cover red copper inner cover after use refractory wass
Sealing, is added the mixed-powder, is sealed after covering the other end with red copper inner cover with refractory wass；The internal oxidition dress
It is functional to set high temperature high voltage resistant, leakproofness is strong, has inner cover protection not pollute to mixed-powder.
(4) alloy densifies: after the copper-aluminium oxide alloy wire rod is cooled to room temperature and is cleaned and dried, using two steps
Sintering process is sintered, technological parameter are as follows: the copper-aluminium oxide alloy powder is kept the temperature into 1.5h under 630 DEG C of lower temperatures,
Then it is brought rapidly up to 915 DEG C of sintering 1.5h and obtains sintered blank, the sintered blank is subjected to hot extrusion and is pressed into bar or plate
Coarse fodder, Hot Extrusion Parameters are as follows: squeezing temperature is 880 DEG C, extrusion ratio 210；
(5) alloy is processed: the bar or plate coarse grain being carried out drawing or machine-shaping of swaging, are prepared by specification
Required alloy bar material finished product.
Embodiment 3:
A kind of alumina dispersion-strenghtened copper-base alloy bar material material, be in copper-based material be added 1.5wt% aluminium and
The silver of 0.3wt%, preparation method comprise the steps of:
(1) alloy melting: 98.5% copper, 1.5% aluminium are taken by weight percentage, copper-aluminium is smelted into intermediate frequency furnace
Alloy pig；The copper is the cathode copper that purity is 99.9%, and the aluminium is the industrial refined aluminium that purity is 99.9% or more；
(2) it prepares alloy wire: the copper-aluminium alloy ingots being removed into impurity through row turnery processing, is containing 5-8% water
30min is impregnated in the aqueous solution of based metal surfaces detergent, it is dry that temperature control carries out vacuum after 60 DEG C, clear water are rinsed well
It is dry, copper-aluminium alloy ingots after removal surface impurity and greasy dirt is then drawn into copper-aluminium alloy wires, the technique of drawing wires
Parameter are as follows: squeeze temperature be 850 DEG C, extrusion ratio 250, alloy wire having a size ofBy the copper-aluminium alloy wires
The line segment of 3cm is cut on cutting machine；
(3) alloy wire gradient internal oxidition: the copper cut off-aluminium alloy wires sealing is embedded in equipped with Cu2O:
In the internal oxidition device of the mixed-powder of Al2O3:Cu=6:2:2, the quality of the mixed-powder is the copper-aluminium alloy wires
8 times, successively in interior oxidation furnace through normal pressure internal oxidition, it is middle pressure internal oxidition and high pressure internal oxidition three phases gradient internal oxidition
Processing, obtains copper-aluminium oxide alloy wire rod, the gradient internal oxidation process parameter are as follows: normal pressure internal oxidition furnace temperature is 900 DEG C, is protected
Warm 45min；Middle pressure internal oxidition furnace temperature is 830 DEG C, air pressure 2atm, keeps the temperature 60min；High pressure internal oxidition furnace temperature is 720 DEG C, air pressure
For 6.0atm, 120imin is kept the temperature；Further, the high temperature high-pressure resistant material that the internal oxidition device uses, it is preferred to use
Red copper, the internal oxidition device mainly include copper tube, red copper inner cover and refractory wass, and the red copper length of tube is
100cm, internal diameter 10cm, with a thickness of 1cm, the red copper inner cover is with a thickness of 0.6cm, diameter 9.5cm, on the inside of copper tube away from
From respectively there is width to be the retaining ring of 0.7cm at the 6cm of both ends, when use first will copper tube one end cover red copper inner cover after use refractory wass
Sealing, is added the mixed-powder, is sealed after covering the other end with red copper inner cover with refractory wass；The internal oxidition dress
It is functional to set high temperature high voltage resistant, leakproofness is strong, has inner cover protection not pollute to mixed-powder.
(4) alloy densifies: after the copper-aluminium oxide alloy wire rod is cooled to room temperature and is cleaned and dried, using two steps
Sintering process is sintered, technological parameter are as follows: the copper-aluminium oxide alloy powder is kept the temperature 2h under 650 DEG C of lower temperatures, so
After be brought rapidly up to 980 DEG C of sintering 2h and obtain sintered blank, the sintered blank is subjected to hot extrusion and is pressed into bar or plate coarse fodder,
Hot Extrusion Parameters are as follows: squeezing temperature is 900 DEG C, extrusion ratio 220；
(5) alloy is processed: the bar or plate coarse fodder being carried out drawing or machine-shaping of swaging, are prepared by specification
Required alloy bar material finished product.
Test example
1,40 d subjects: are taken0=10mm, L0The copper alloy bar sample of=50mm is divided into 4 groups, every group 10
Sample is set to contrast groups 1 and contrast groups 2, the embodiment of the present invention wherein commercially available common disperse copper alloy is set as contrast groups
1, embodiment 2, embodiment 3 are set to experimental group 1, experimental group 2, experimental group 3, the above group in addition to composition proportion is different,
It is remaining all the same, it is comparable.
Wherein, contrast groups 1: using powder internal oxidation, and it is strong to prepare the aluminum oxide dispersion that aluminium weight percent is 0.65%
Change copper product.
Contrast groups 2: using thin plate internal oxidition hot extrusion method, and it is strong to prepare the aluminum oxide dispersion that aluminium weight percent is 0.65%
Change copper product.
2, test method: each Al2O3 dispersed and strengthened copper-based composite material provided implementation group 1~3 and contrast groups squeezes
The pertinence of pressure state can be carried out detection.Detection method is as follows: (1) tensile strength: using GB/T228.1-2010, " metal material is drawn
Stretch test " in the measurement tensile strength of room temperature test method described in part 1, wherein d0=10mm, L0=50mm；(2) conductive
Rate: cutting the sample of Φ 10mm × 10mm, using eddy-current method, is surveyed with German FoersterSIGMATEST2.069 eddy conductivity
It tries instrument and surveys conductivity；(3) it microhardness: is measured using MH-3 type micro Vickers, load 100g used, the load time
10s；(4) softening temperature: the annealing temperature after annealing heat preservation 1h when hardness decline 15% is softening temperature.
1 alumina dispersion-strenghtened copper material As-extruded performance of table
| Microhardness/HV | Conductivity/%IACS | Tensile strength/MPa | |
| Contrast groups 1 | 105 | 70.4 | 231 |
| Contrast groups 2 | 119 | 89.9 | 408 |
| Experimental group 1 | 145 | 96.7 | 460 |
| Experimental group 2 | 154 | 97.6 | 486 |
| Experimental group 3 | 167 | 91.1 | 502 |
As it can be seen from table 1 using the microhardness of experimental group 1-3 alumina dispersion-strenghtened copper material of the invention, electricity
Conductance and tensile strength are superior to the 2 thin plate internal oxidition hot extrusion method of powder internal oxidation and contrast groups of contrast groups 1, wherein testing
The best performance of group 2.In addition, the method for the present invention preparation alumina dispersion-strenghtened copper material hot extrusion state show it is excellent
Softening power resistant to high temperatures, softening temperature reach 900 DEG C.
Although the present invention is described and illustrated with reference to its specific embodiment, it will be appreciated by those skilled in the art that
It can be variously modified without departing from the spirit and scope of the present invention, modified and replaced.Therefore, of the invention
It is intended to only by the scope limitation of following claims and these claims should be explained as broadly as possible in reasonable degree.
Claims (3)
1. a kind of alumina dispersion-strenghtened copper-base alloy bar material material, which is characterized in that be that 0.3- is added in copper-based material
The aluminium of 1.5wt%, preparation method comprise the steps of:
(1) alloy melting: the copper of 98.5-99.7%, the aluminium of 0.3-1.5wt% are taken by weight percentage, is smelted into intermediate frequency furnace
Copper-aluminium alloy ingots；
(2) it prepares alloy wire: the copper-aluminium alloy ingots being removed into impurity through row turnery processing, is containing the water base gold of 5-8%
15-30min is impregnated in the aqueous solution of metal surface detergent, it is dry that temperature control carries out vacuum after 40-60 DEG C, clear water are rinsed well
It is dry, copper-aluminium alloy ingots after removal surface impurity and greasy dirt is then drawn into copper-aluminium alloy wires, the copper-aluminium is closed
Gold thread material cuts into the line segment of 2-3cm on cutting machine；
(3) alloy wire gradient internal oxidition: the copper cut off-aluminium alloy wires sealing is embedded in equipped with Cu2O:Al2O3: Cu=
In the copper tube of the mixed-powder of 6:2:2, the quality of the mixed-powder is 6-8 times of the copper-aluminium alloy wires, is successively existed
Gradient internal oxidition through normal pressure internal oxidition, middle pressure internal oxidition and high pressure internal oxidition three phases in internal oxidition furnace is handled, and obtains copper-
Aluminium oxide alloy wire rod；
(4) alloy densifies: after the copper-aluminium oxide alloy wire rod is cooled to room temperature and is cleaned and dried, using two-step sintering
Method is sintered, and sintering temperature is 600-980 DEG C, and time 2-4h obtains sintered blank, and the sintered blank is carried out hot extrusion compacting
At bar or plate coarse fodder；
(5) alloy is processed: the bar or plate coarse fodder being carried out drawing or machine-shaping of swaging, needed for being prepared by specification
Alloy bar material finished product；
Step (3) the gradient internal oxidation process parameter are as follows: normal pressure internal oxidition furnace temperature is 850-900 DEG C, keeps the temperature 30-45min；In
Pressing internal oxidition furnace temperature is 780-830 DEG C, air pressure 1.2-2atm, keeps the temperature 30-60min；High pressure internal oxidition furnace temperature is 680-720
DEG C, air pressure 5.0-6.0atm keeps the temperature 60-120imin；
The technological parameter of two-step sintering described in step (4) are as follows: 1-2h is kept the temperature under 600-650 DEG C of lower temperature, then rapidly
It is warming up to 850-980 DEG C of sintering 1-2h.
2. a kind of alumina dispersion-strenghtened copper-base alloy bar material material as described in claim 1, which is characterized in that step (1)
The copper is the cathode copper that purity is 99.9%, and the aluminium is the industrial refined aluminium that purity is 99.9% or more.
3. a kind of alumina dispersion-strenghtened copper-base alloy bar material material as described in claim 1, which is characterized in that step (4)
The Hot Extrusion Parameters are as follows: squeezing temperature is 860-900 DEG C, extrusion ratio 200-220.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611004207.1A CN106756135B (en) | 2016-11-11 | 2016-11-11 | A kind of preparation method of alumina dispersion-strenghtened copper alloy bar material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611004207.1A CN106756135B (en) | 2016-11-11 | 2016-11-11 | A kind of preparation method of alumina dispersion-strenghtened copper alloy bar material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106756135A CN106756135A (en) | 2017-05-31 |
| CN106756135B true CN106756135B (en) | 2019-04-09 |
Family
ID=58968246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611004207.1A Active CN106756135B (en) | 2016-11-11 | 2016-11-11 | A kind of preparation method of alumina dispersion-strenghtened copper alloy bar material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106756135B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863199B (en) * | 2017-10-11 | 2019-04-23 | 陕西斯瑞新材料股份有限公司 | A kind of preparation method of the copper-clad dispersion copper conducting rod of high-strength highly-conductive high softening temperature |
| CN108251671B (en) * | 2018-01-08 | 2019-08-27 | 北京科技大学 | A kind of preparation method of doping graphene oxide enhancing ODS copper |
| CN111378849B (en) * | 2018-12-27 | 2022-04-08 | 南京理工大学 | Preparation method of industrial pure aluminum conductor |
| CN110421004B (en) * | 2019-07-30 | 2020-08-04 | 江西理工大学 | Preparation method of aluminum oxide dispersion strengthened copper large plate belt material |
| CN111036921A (en) * | 2019-12-17 | 2020-04-21 | 陕西斯瑞新材料股份有限公司 | Preparation method of large-size dispersed copper bar |
| CN111957755B (en) * | 2020-07-20 | 2022-01-11 | 华东交通大学 | Drawing process for dispersion copper alloy |
| CN112171031A (en) * | 2020-09-15 | 2021-01-05 | 常州特尔玛枪嘴有限公司 | Conductive nozzle, composite bar thereof and manufacturing process |
| CN112719297B (en) * | 2021-03-31 | 2021-06-29 | 陕西斯瑞新材料股份有限公司 | Method for 3D printing of high-density dispersion-strengthened copper part |
| CN113621838B (en) * | 2021-06-29 | 2022-04-01 | 合肥烔创新材料科技合伙企业(有限合伙) | Preparation method of particle dispersion strengthened copper-based composite material |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195879B (en) * | 2006-12-08 | 2010-09-29 | 中国船舶重工集团公司第七二五研究所 | Al2O3dispersion strengthening copper alloy and method for producing the same |
| CN101121974B (en) * | 2007-09-19 | 2014-04-30 | 洛阳理工学院 | High-strength high-conduction strengthened dispersion copper alloy and preparation method thereof |
| CN101240387B (en) * | 2007-11-23 | 2010-10-13 | 中南大学 | Cu-Al2O3 nano strengthened dispersion alloy and preparation method thereof |
| CN101178958B (en) * | 2007-12-04 | 2011-07-27 | 河南科技大学 | Ultra-high tension copper wire and method of producing the same |
| CN102154572B (en) * | 2011-05-25 | 2012-12-19 | 宁波汉博贵金属合金有限公司 | Method for preparing sliver-tin oxide and indium oxide electrical contact material by gradient internal oxidation method |
| CN106048289B (en) * | 2016-06-30 | 2018-03-20 | 佛山市诺普材料科技有限公司 | A kind of large or fine granule collocation internal oxidation Agcdo manufacture craft |
-
2016
- 2016-11-11 CN CN201611004207.1A patent/CN106756135B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106756135A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106756135B (en) | A kind of preparation method of alumina dispersion-strenghtened copper alloy bar material | |
| CN101121974B (en) | High-strength high-conduction strengthened dispersion copper alloy and preparation method thereof | |
| CN101956094B (en) | Preparation method of high-strength and high-conductivity dispersion-strengthened alloy | |
| CN106048275B (en) | A kind of preparation method of ceramic phase dispersion strengthening copper alloy | |
| CN103695825B (en) | A kind of preparation method of high-strength copper Cr-Zr alloy fine rule conductor of high conductivity | |
| CN106381414B (en) | A kind of copper-based in-situ composite alloy and preparation method thereof | |
| CN106086504B (en) | Superpower high-conductivity copper alloy as more than 400 kilometers high-speed railway contact line materials applications of speed per hour | |
| CN105483419A (en) | Preparation method of high-strength and high-conductivity aluminum oxide dispersion-strengthened copper-based composite | |
| CN107794389A (en) | A kind of silver-tin oxide or indium oxide contact material and preparation method thereof | |
| CN101586198A (en) | A process for preparing aluminum oxide dispersion strengthened copper with high strength and high conductivity | |
| CN102796912B (en) | Preparation method of Al2O3 dispersion strengthened copper alloy bar | |
| CN106834791B (en) | A kind of rare earth oxide particles strengthen the preparation method of high-conductivity copper alloy | |
| CN106270533B (en) | A kind of preparation method of the CuW/CuCr of high interfacial bonding strength | |
| CN105132726B (en) | A kind of copper-chromium contact material suitable for contactor and preparation method thereof | |
| CN103276234A (en) | Preparation method of silver tin oxide electrical contact material | |
| CN110257662B (en) | Copper-graphene composite material and preparation method thereof | |
| CN109576529B (en) | High-performance dispersion copper alloy and preparation method thereof | |
| CN102808099B (en) | Preparation method for Al2O3 dispersion-strengthened Cu/Cr composite material | |
| CN108677048B (en) | Nitrogen-doped graphene silver-based composite material and preparation method thereof | |
| CN107475559A (en) | A kind of high-strength highly-conductive high thermal stability chrome zirconium copper alloy and preparation method thereof | |
| CN104561638B (en) | A kind of Al2O3The preparation method of dispersed and strengthened copper-based composite material | |
| CN102161097A (en) | Preparation method of novel fine grained tungsten copper electrode material | |
| CN101418393A (en) | Novel method for preparing AgCuV alloy material | |
| CN102952962A (en) | Cu-Fe composite material 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 |
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 | ||
| CB02 | Change of applicant information |
Address after: 710077 12 zhang87 Road, Changan District hi tech Zone, Xi'an, Shaanxi Applicant after: SHAANXI SIRUI ADVANCED MATERIALS CO., LTD. Address before: 710077 fish 273 Road, Xi'an, Shaanxi Applicant before: SHAANXI SIRUI ADVANCED MATERIALS CO., LTD. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Preparation method for alumina dispersion strengthened copper alloy rod Effective date of registration: 20190726 Granted publication date: 20190409 Pledgee: Xi'an investment and financing Company limited by guarantee Pledgor: SHAANXI SIRUI ADVANCED MATERIALS CO., LTD. Registration number: 2019610000166 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20201204 Granted publication date: 20190409 Pledgee: Xi'an investment and financing Company limited by guarantee Pledgor: SHAANXI SIRUI ADVANCED MATERIALS Co.,Ltd. Registration number: 2019610000166 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |