CN105680014B - A kind of preparation method of gun-metal powder - Google Patents
A kind of preparation method of gun-metal powder Download PDFInfo
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- CN105680014B CN105680014B CN201610053659.2A CN201610053659A CN105680014B CN 105680014 B CN105680014 B CN 105680014B CN 201610053659 A CN201610053659 A CN 201610053659A CN 105680014 B CN105680014 B CN 105680014B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/364—Composites as mixtures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/387—Tin or alloys based on tin
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/628—Inhibitors, e.g. gassing inhibitors, corrosion inhibitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The present invention relates to the preparation field of gun-metal powder, the preparation method of specifically a kind of gun-metal powder, including by blocky Cu5Sn6Melting；By the Cu of melting5Sn6Fluid is vertically sprayed from top to bottom by nozzle to high-speed rotating roller surface；Fluid gets rid of to the spray chamber of side through idler wheel rotation and forms drop；In spray chamber, high-pressure inert gas from bottom to up blows drop to the spray chamber of spray chamber side；Gas-liquid mixture in spray chamber is sprayed to collecting chamber；Collect gun-metal powder.The present invention smashes the fluid of injection by the centrifugal force of swing roller, then hits drop by high-speed gas, then sprays again, and not only powder diameter obtained is compared with thin, particle diameter distribution is uniform, but also entire process flow is simple, processing cost is low.
Description
Technical field
The present invention relates to the preparation field of gun-metal powder, specifically a kind of preparation method of gun-metal powder.
Background technique
Lithium battery is one of existing electric appliance or the most important power supply of electric tool, and in order to improve the performance of lithium battery, mention
The specific capacity of high cathode, currently, most of manufacturers use tin negative pole material.However, in charge and discharge process, tin cathode
Cubical expansivity is larger, can generate powder phenomenon-tion after long-term circulation, cause cycle performance poor.In order to solve these problems, one
As using preparing composite alloy as cathode, such as gun-metal, tin ferroalloy.The existing method for preparing gun-metal powder compared with
It is more, but the complex process of tin copper is prepared, long flow path is at high cost, and powder diameter distribution is not uniform enough.
Summary of the invention
In view of the above-mentioned problems, the present invention provides, a kind of particle diameter distribution is uniform and the preparation of lower-cost gun-metal powder
Method.
The technical scheme of the invention to solve the technical problem is: a kind of preparation method of gun-metal powder,
The following steps are included:
(1) by blocky Cu5Sn6Melting；
(2) by the Cu of melting5Sn6Fluid is vertically sprayed from top to bottom by nozzle to high-speed rotating roller surface；
(3) fluid gets rid of to the spray chamber of side through idler wheel rotation and forms drop；
(4) in spray chamber, high-pressure inert gas from bottom to up blows drop to the spray chamber of spray chamber side；
(5) gas-liquid mixture in spray chamber is sprayed to collecting chamber；
(6) gun-metal powder is collected.
Preferably, the roller surface offers several spherical grooves.
Preferably, the fluid of injection to roller surface flows into groove, the fluid in groove is got rid of to spray chamber.
Preferably, groove is 0.5-1mm in the opening diameter of roller surface.
Preferably, the mass flowrate of fluid injection is 6-8g/s.
Preferably, the vertical range between nozzle and idler wheel is 0.01-0.1mm.
Preferably, the diameter of idler wheel is 40-50mm, idler wheel revolving speed is 300-350r/min.
Preferably, the flow direction of high-pressure inert gas and the angle of horizontal direction are 45 ° in spray chamber -- 90 °.
Preferably, the flow velocity of high-pressure inert gas is 30m/s.
The present invention smashes the fluid of injection by the centrifugal force of swing roller, then hits drop by high-speed gas, so
It sprays again afterwards, not only powder diameter obtained is compared with thin, particle diameter distribution is uniform, but also entire process flow is simple, processing cost
It is low.
Specific embodiment
The present invention is described more detail below, illustrative examples of the invention and explanation are used to explain the present invention herein,
But it is not as a limitation of the invention.
The preparation method of gun-metal powder of the invention, uses following steps:
First by blocky Cu5Sn6Melting, then by the Cu of melting5Sn6Fluid is vertically sprayed by nozzle to high-speed rotating
Roller surface；Roller surface offers several spherical grooves, and the sprayable fluid to roller surface flows into groove, extends fluid and exists
The residence time on surface keeps it suitably cooling, so that it is more preferable that the fluid in groove gets rid of the epigranular degree after spray chamber；
Residence time in order to avoid fluid on surface is too long, causes powder diameter excessive, and groove of the invention is opened roller surface
Mouth diameter is advisable with 0.5-1mm, and should ensure that the mass flowrate of fluid injection is vertical between 6-8g/s, nozzle and idler wheel
Distance is 0.01-0.1mm, while the roller diameter used is 40-50mm, idler wheel revolving speed is 300-350r/min；It gets rid of to mist
The particle for changing room enters spray chamber under the shock of high-speed flow, thus second of refinement drop；In spray chamber, high pressure inert
The flow direction of gas and best 45 ° of the angle of horizontal direction -- 90 °, thinning effect is more preferable, while the flow velocity of high-pressure inert gas is protected
Holding 30m/s is advisable；Gas-liquid mixture in spray chamber sprays under the pressure of high pressure gas again to collecting chamber, and when injection can also
Nozzle is used, to carry out third time refinement；Finally collect gun-metal powder.
Embodiment 1
By blocky Cu5Sn6Melting, then by the Cu of melting5Sn6Fluid, which is vertically sprayed by nozzle to rotation, has groove
Roller surface；Its further groove is the opening diameter of roller surface is 0.5 mm, the mass flowrate of fluid injection is 6g/s, nozzle
Vertical range between idler wheel is 0.01mm, roller diameter 40mm, and idler wheel revolving speed is 300r/min；Meanwhile in spray chamber
It is interior, to keep 45 ° of angles with horizontal direction and be passed through high-pressure inert gas with the speed of 30m/s to hit fluid to spray chamber,
Collecting chamber is sprayed into from spray chamber, finally collects gun-metal powder, is analyzed the diameter of all partial sizes between 8-15 μm.
Embodiment 2
By blocky Cu5Sn6Melting, then by the Cu of melting5Sn6Fluid, which is vertically sprayed by nozzle to rotation, has groove
Roller surface；Its further groove is the opening diameter of roller surface is 0.7 mm, the mass flowrate of fluid injection is 7g/s, nozzle
Vertical range between idler wheel is 0.05mm, roller diameter 45mm, and idler wheel revolving speed is 320r/min；Meanwhile in spray chamber
It is interior, to keep 60 ° of angles with horizontal direction and be passed through high-pressure inert gas with the speed of 30m/s to hit fluid to spray chamber,
Collecting chamber is sprayed into from spray chamber, finally collects gun-metal powder, is analyzed the diameter of all partial sizes between 3-9 μm.
Embodiment 3
By blocky Cu5Sn6Melting, then by the Cu of melting5Sn6Fluid, which is vertically sprayed by nozzle to rotation, has groove
Roller surface；Its further groove is the opening diameter of roller surface is 1.0 mm, the mass flowrate of fluid injection is 8g/s, nozzle
Vertical range between idler wheel is 0.1mm, roller diameter 42mm, and idler wheel revolving speed is 350r/min；Meanwhile in spray chamber
It is interior, to keep 90 ° of angles with horizontal direction and be passed through high-pressure inert gas with the speed of 30m/s to hit fluid to spray chamber,
Collecting chamber is sprayed into from spray chamber, finally collects gun-metal powder, is analyzed the diameter of all partial sizes between 6-14 μm.
It is provided for the embodiments of the invention technical solution above to be described in detail, specific case used herein
The principle and embodiment of the embodiment of the present invention are expounded, the explanation of above embodiments is only applicable to help to understand this
The principle of inventive embodiments；At the same time, for those skilled in the art, according to an embodiment of the present invention, in specific embodiment party
There will be changes in formula and application range, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (7)
1. a kind of preparation method of gun-metal powder, comprising the following steps:
(1) by blocky Cu5Sn6Melting；
(2) by the Cu of melting5Sn6Fluid is vertically sprayed from top to bottom by nozzle to high-speed rotating roller surface；
(3) fluid gets rid of to the spray chamber of side through idler wheel rotation and forms drop；
(4) in spray chamber, high-pressure inert gas from bottom to up blows drop to the spray chamber of spray chamber side；
(5) gas-liquid mixture in spray chamber is sprayed to collecting chamber；
(6) gun-metal powder is collected；The roller surface offers several spherical grooves；It sprays to the fluid stream of roller surface
Into groove, the fluid in groove is got rid of to spray chamber.
2. the preparation method of gun-metal powder according to claim 1, it is characterised in that: opening of the groove in roller surface
Diameter is 0.5-1mm.
3. according to claim 1 to the preparation method of gun-metal powder described in any one of 2, it is characterised in that: fluid spray
The mass flowrate penetrated is 6-8g/s.
4. the preparation method of gun-metal powder according to claim 3, it is characterised in that: vertical between nozzle and idler wheel
Distance is 0.01-0.1mm.
5. the preparation method of gun-metal powder according to claim 4, it is characterised in that: the diameter of idler wheel is 40-
50mm, idler wheel revolving speed are 300-350r/min.
6. the preparation method of gun-metal powder according to claim 1, it is characterised in that: in spray chamber, high pressure inert
The flow direction of gas and the angle of horizontal direction are 45 ° -90 °.
7. the preparation method of gun-metal powder according to claim 6, it is characterised in that: the flow velocity of high-pressure inert gas is
30m/s。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610053659.2A CN105680014B (en) | 2016-01-27 | 2016-01-27 | A kind of preparation method of gun-metal powder |
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| CN201610053659.2A CN105680014B (en) | 2016-01-27 | 2016-01-27 | A kind of preparation method of gun-metal powder |
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| CN105680014A CN105680014A (en) | 2016-06-15 |
| CN105680014B true CN105680014B (en) | 2019-02-01 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106065445B (en) * | 2016-07-29 | 2017-12-08 | 柳州豪祥特科技有限公司 | The method that powder metallurgic method prepares Cu-base composites |
| CN106216697A (en) * | 2016-09-29 | 2016-12-14 | 柳州增程材料科技有限公司 | The preparation method of 3D printing alloy powder |
| CN106238741A (en) * | 2016-09-30 | 2016-12-21 | 柳州增程材料科技有限公司 | The preparation method of car aluminum magnesium alloy materials |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88204942U (en) * | 1988-04-23 | 1988-12-07 | 深圳科力铁有限公司 | Spraying powder-manufacturing device |
| CN1071614A (en) * | 1992-10-07 | 1993-05-05 | 中南工业大学 | Secondary atomizer for double electrode arc melting |
| CN1316308A (en) * | 2001-02-26 | 2001-10-10 | 沈阳工业大学 | Planar slip casting technology for making powder and its technological equipment |
| CN102248173A (en) * | 2010-05-19 | 2011-11-23 | 浙江亚通焊材有限公司 | Method and equipment for preparing spherical low-oxygen aluminum-based solder powder |
| CN102712044A (en) * | 2009-12-15 | 2012-10-03 | 韩国机械研究院 | Production method and production device for a composite metal powder using the gas spraying method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006213986A (en) * | 2005-02-07 | 2006-08-17 | Minerva Kiki Kk | Method for producing fine metallic powder and production apparatus therefor |
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- 2016-01-27 CN CN201610053659.2A patent/CN105680014B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88204942U (en) * | 1988-04-23 | 1988-12-07 | 深圳科力铁有限公司 | Spraying powder-manufacturing device |
| CN1071614A (en) * | 1992-10-07 | 1993-05-05 | 中南工业大学 | Secondary atomizer for double electrode arc melting |
| CN1316308A (en) * | 2001-02-26 | 2001-10-10 | 沈阳工业大学 | Planar slip casting technology for making powder and its technological equipment |
| CN102712044A (en) * | 2009-12-15 | 2012-10-03 | 韩国机械研究院 | Production method and production device for a composite metal powder using the gas spraying method |
| CN102248173A (en) * | 2010-05-19 | 2011-11-23 | 浙江亚通焊材有限公司 | Method and equipment for preparing spherical low-oxygen aluminum-based solder powder |
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Effective date of registration: 20240520 Address after: Workshop 5, East Campus, 100 meters south of the intersection of Huijin Avenue and Changping Road, Zhandian Town, Wuzhi County, Jiaozuo City, Henan Province, China Patentee after: HENAN TAIHE HUIJIN POWDER TECHNOLOGY Co.,Ltd. Country or region after: China Address before: 545000 No. 511, building 2, R & D center, Guantang Pioneer Park, Liudong New District, Liuzhou City, Guangxi Zhuang Autonomous Region Patentee before: LIUZHOU HAOXIANGTE SCIENCE & TECHNOLOGY Co.,Ltd. Country or region before: China |