CN107350478A - A kind of preparation method of ultra-fine copper-aluminium alloy powder - Google Patents
A kind of preparation method of ultra-fine copper-aluminium alloy powder Download PDFInfo
- Publication number
- CN107350478A CN107350478A CN201710552082.4A CN201710552082A CN107350478A CN 107350478 A CN107350478 A CN 107350478A CN 201710552082 A CN201710552082 A CN 201710552082A CN 107350478 A CN107350478 A CN 107350478A
- Authority
- CN
- China
- Prior art keywords
- ultra
- alloy powder
- fine copper
- powder
- aluminium alloy
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
- B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention proposes a kind of preparation method of ultra-fine copper-aluminium alloy powder, comprises the following steps：Step 1：The metallic solution high speed atomisation of copper, aluminium element is blended with, by the eddy flow of formation, the rapid draing in 180 DEG C of 230 DEG C of atmosphere, generates ultra-fine hybrid metal chloride powder；Step 2：After the collection of products prepared by step 1, it is added in reduction furnace, is passed through hydrogen reducing roasting, collection of products resulting after roasting, sieving is obtained into ultra-fine copper Al alloy powder.The beneficial effects of the invention are as follows：Product is the class single crystal grain alloyed powder that average grain diameter is 1 μm, and the alloy powder has good mobility, even particle size distribution, a high jolt ramming degree, the outstanding features such as specific surface area is big.
Description
Technical field
The application is the preparation method field for the raw material for being related to manufacture copper aluminum-based metallurgies part, is directed to use with being spray-dried
And the preparation of roasting reduction method production ultra-fine copper aluminium composite powder.
Background technology
Copper-aluminium alloy powder is the raw material for manufacturing copper aluminum-based metallurgies part, in aerospace applications, machine-building, 3D printing
Machine technology, automobile making, electric equipment etc. have quite varied market application.The ultra-fine most important purposes of copper-aluminium alloy powder
It is the conductive filler as conducing composite material, the width of its size distribution directly determines its electric conductivity and stability.
Generally, it is considered that copper-aluminum alloy powder size distribution is narrower, its specific surface area is bigger, and the contact between particle is more preferable, its electric conductivity
More preferably, resistance is smaller.Using aluminium powder as conductive filler, good low resistance, resistance to oxidation are shown in the application of alternating current
And the advantage of economy, but under DC voltage effect, aluminium easily occurs migration and causes short circuit.Copper powder as conductive filler with
For aluminium powder compared to there is good resistance to migration, its electric conductivity is more excellent, be the shortcomings that copper powder be easier with aluminium compared with it is oxidized.
Copper-aluminium alloy powder can with efficient set the resistance to migration of copper, the economy of aluminium, and improve the inoxidizability feature of copper, with
Single copper powder, aluminium powder are compared to being more excellent conductive filler.
Conventional method prepared by existing metal dust is to mix two kinds of metal dusts, uses mechanical ball mill
Method is ground, and this method is difficult to be well mixed two kinds of powder, and energy consumption is huge.Copper clad aluminium powder is also conventional method,
I.e. with electric plating method by copper clad aluminium powder, powder size prepared by this method is larger, and can not play the advantage of two kinds of metals.
The third method be melting cast make method, i.e., molten metal high-temperature atomizing is cooled down, its metal dust granularity be about 100 μm with
On, powder prepared by this method is smaller because its granularity can not control, and its application is extremely restricted.
The content of the invention
It is an object of the present invention to provide a kind of preparation method of new ultra-fine copper-aluminium alloy powder.
The technical solution adopted in the present invention is：A kind of preparation method of ultra-fine copper-aluminium alloy powder, comprises the following steps：
Step 1 is blended with CuCl2And AlCl3Solution high speed atomisation, by the eddy flow of formation, in 180 DEG C of -230 DEG C of atmosphere
Middle rapid draing, generate hybrid metal chloride powder；
Step 2：After the collection of products prepared by step 1, it is added in reduction furnace, hydrogen reducing roasting is passed through, after roasting
Resulting collection of products, sieving obtain ultra-fine copper Al alloy powder.
Further, metallic element weight/mass percentage composition controls respectively in the ultra-fine copper-aluminium alloy powder of product：The content of copper
For 20%-30%, the content of aluminium is 70%-80%.
Reduction furnace temperature control is at 450 DEG C -500 DEG C in the step 2, roasting time 6h-10h.
The ultra-fine copper-aluminium alloy powder is class single crystal grain shape, and particle mean size is 1 μm.
The beneficial effects of the invention are as follows：Product is the class single crystal grain alloyed powder that average grain diameter is 1 μm, and the alloy powder has
There are good mobility, even particle size distribution, a high jolt ramming degree, the outstanding features such as specific surface area is big.
Brief description of the drawings
Fig. 1 is the schematic device used in the present invention；
Mark meaning is as follows：1st, feed system；2nd, hot-air system；3rd, it is spray-dried section；4th, feed bin；5th, bagroom；6th, draw
Blower fan；
Fig. 2 is the process chart of the present invention；
Fig. 3 is the SEM figures for the ultra-fine copper-aluminium alloy powder that embodiment 1 is prepared；
Fig. 4 is the SEM figures for the ultra-fine copper-aluminium alloy powder that embodiment 2 is prepared；
Fig. 5 is the SEM figures for the ultra-fine copper-aluminium alloy powder that embodiment 3 is prepared.
Embodiment
Embodiment 1
Solution, CuCl wherein in solution are configured with deionized water2For 0.31mol/L, AlCl3For 2.96mol/L, stir.
By mixed solution through feed system 1, suitable flow is controlled to inject solution in high velocity fog device with constant flow pump；Atomized soln
Into in spray drying stove；It is 180 DEG C that hot-air system 2, which controls the temperature of spray drying,；Collect the hybrid metal chlorine tentatively synthesized
Compound powder is in feed bin 4；The wind-force size of air-introduced machine 6 is controlled, bagroom 5 captures little particle product.By feed bin 4, cloth
The product that bag collector 5 is collected into is added in reduction furnace, at a temperature of 450 DEG C of furnace temperature, is passed through hydrogen, is calcined 10h.After being calcined
Resulting collection of products, sieving obtain ultra-fine copper Al alloy powder.
Embodiment 2
Solution, CuCl wherein in solution are configured with deionized water2For 0.39mol/L, AlCl3For 2.78mol/L, stir.
By mixed solution through feed system 1, suitable flow is controlled to inject solution in high velocity fog device with constant flow pump；Atomized soln
Into in spray drying stove；It is 200 DEG C that hot-air system 2, which controls the temperature of spray drying,；Collect the hybrid metal chlorine tentatively synthesized
Compound powder is in feed bin 4；The wind-force size of air-introduced machine 6 is controlled, bagroom 5 captures little particle product.By feed bin 4, cloth
The product that bag collector 5 is collected into is added in reduction furnace, at a temperature of 470 DEG C of furnace temperature, is passed through hydrogen, is calcined 8h.After being calcined
Resulting collection of products, sieving obtain ultra-fine copper Al alloy powder.
Embodiment 3
Solution, CuCl wherein in solution are configured with deionized water2For 0.47mol/L, AlCl3For 2.59mol/L, stir.
By mixed solution through feed system 1, suitable flow is controlled to inject solution in high velocity fog device with constant flow pump；Atomized soln
Into in spray drying stove；It is 230 DEG C that hot-air system 2, which controls the temperature of spray drying,；Collect the hybrid metal chlorine tentatively synthesized
Compound powder is in feed bin 4；The wind-force size of air-introduced machine 6 is controlled, bagroom 5 captures little particle product.By feed bin 4, cloth
The product that bag collector 5 is collected into is added in reduction furnace, at a temperature of 500 DEG C of furnace temperature, is passed through hydrogen, is calcined 6h.After being calcined
Resulting collection of products, sieving obtain ultra-fine copper Al alloy powder.
Claims (4)
- A kind of 1. preparation method of ultra-fine copper-aluminium alloy powder, it is characterized in that comprising the following steps：Step 1：It is blended with CuCl2And AlCl3Solution high speed atomisation, by the eddy flow of formation, in 180 DEG C of -230 DEG C of atmosphere Middle rapid draing, generate hybrid metal chloride powder；Step 2：After the collection of products prepared by step 1, it is added in reduction furnace, hydrogen reducing roasting is passed through, after roasting Resulting collection of products, sieving obtain ultra-fine copper Al alloy powder.
- 2. a kind of preparation method of ultra-fine copper-aluminium alloy powder as claimed in claim 1, it is characterized in that：In ultra-fine copper-aluminium alloy powder Metallic element weight/mass percentage composition controls respectively：The content of copper is 20%-30%, and the content of aluminium is 70%-80%.
- 3. a kind of preparation method of ultra-fine copper-aluminium alloy powder as claimed in claim 1, it is characterized in that：Reduced in the step 2 Furnace temperature control is at 450 DEG C -500 DEG C, roasting time 6h-10h.
- 4. a kind of preparation method of ultra-fine copper-aluminium alloy powder as claimed in claim 1, it is characterized in that：The ultra-fine albronze Powder is class single crystal grain shape, and particle mean size is 1 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710552082.4A CN107350478A (en) | 2017-07-07 | 2017-07-07 | A kind of preparation method of ultra-fine copper-aluminium alloy powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710552082.4A CN107350478A (en) | 2017-07-07 | 2017-07-07 | A kind of preparation method of ultra-fine copper-aluminium alloy powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107350478A true CN107350478A (en) | 2017-11-17 |
Family
ID=60292354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710552082.4A Pending CN107350478A (en) | 2017-07-07 | 2017-07-07 | A kind of preparation method of ultra-fine copper-aluminium alloy powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107350478A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02259003A (en) * | 1989-03-31 | 1990-10-19 | Tanaka Kikinzoku Kogyo Kk | Manufacture of copper fine particles |
| CN102039405A (en) * | 2009-10-26 | 2011-05-04 | 张家港市森达外加剂厂 | Preparation method of aluminum-copper alloy powder |
| CN105177696A (en) * | 2015-08-26 | 2015-12-23 | 湖北工程学院 | Preparation method for copper nanostructured material with controllable morphology |
-
2017
- 2017-07-07 CN CN201710552082.4A patent/CN107350478A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02259003A (en) * | 1989-03-31 | 1990-10-19 | Tanaka Kikinzoku Kogyo Kk | Manufacture of copper fine particles |
| CN102039405A (en) * | 2009-10-26 | 2011-05-04 | 张家港市森达外加剂厂 | Preparation method of aluminum-copper alloy powder |
| CN105177696A (en) * | 2015-08-26 | 2015-12-23 | 湖北工程学院 | Preparation method for copper nanostructured material with controllable morphology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104700961A (en) | Graphene/silver composite material and preparation method thereof | |
| CN201463505U (en) | DC arc furnace | |
| CN109112346A (en) | A kind of preparation method of increasing material manufacturing copper alloy powder | |
| CN107794389A (en) | A kind of silver-tin oxide or indium oxide contact material and preparation method thereof | |
| WO2011003225A1 (en) | Preparation method for silver metal oxide made electric contact material | |
| CN106505188B (en) | Tinbase nano particle-carbon composite and the preparation method and application thereof | |
| CN104493184B (en) | The manufacture method of spherical bell metal powder | |
| CN107502945A (en) | A kind of graphene aluminium alloy conductor and preparation method | |
| CN100523236C (en) | Special copper alloy and manufacturing method thereof | |
| JP4888769B2 (en) | Copper powder and method for producing the same | |
| CN112620640A (en) | Preparation method of AgNi electrical contact material based on recycling of AgC scrap | |
| CN107350478A (en) | A kind of preparation method of ultra-fine copper-aluminium alloy powder | |
| CN105177379A (en) | Graphene oxide composite material | |
| CN104046808A (en) | Making method of copper alloy contact wires for electrical locomotives | |
| CN114107741A (en) | High-entropy alloy reinforced nickel-aluminum composite spherical powder for 3D printing and preparation method thereof | |
| CN105977065A (en) | Chromium carbide copper-based contact material for low-voltage electric appliance, and processing method for chromium carbide copper-based contact material | |
| CN106270459B (en) | A kind of preparation method of copper-base pantograph slide plate | |
| CN111069617B (en) | Preparation 3D prints centrifugal atomization machine with metal powder | |
| CN107617748A (en) | A kind of preparation method of copper/graphite sliding material | |
| CN104630512A (en) | Dispersion type copper-bismuth-tin immiscible alloy composite wire rod and preparation method thereof | |
| TWI583464B (en) | Spherical copper/molybdenum disulfide powders, metal articles, and methods for producing same | |
| CN105903953B (en) | A kind of powder used in metallurgy stainless steel/graphene composite powder and preparation method thereof | |
| CN107904429A (en) | A kind of Cu NbSe2The preparation method of Material for Pantograph Slide | |
| CN106329266A (en) | Electric brush for train set grounding backflow device | |
| WO2012096489A2 (en) | Tin/tin alloy nanoparticle having low melting temperature and method for manufacturing same |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171117 |