CN105680014A - Preparation method for tin-copper alloy powder - Google Patents
Preparation method for tin-copper alloy powder Download PDFInfo
- Publication number
- CN105680014A CN105680014A CN201610053659.2A CN201610053659A CN105680014A CN 105680014 A CN105680014 A CN 105680014A CN 201610053659 A CN201610053659 A CN 201610053659A CN 105680014 A CN105680014 A CN 105680014A
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- CN
- China
- Prior art keywords
- preparation
- gun
- metal powder
- roller
- fluid
- 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
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- 239000000843 powder Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 229910000597 tin-copper alloy Inorganic materials 0.000 title abstract 4
- 239000012530 fluid Substances 0.000 claims abstract description 29
- 238000002844 melting Methods 0.000 claims abstract description 13
- 239000011261 inert gas Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000007921 spray Substances 0.000 claims description 28
- 239000002184 metal Substances 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 239000010949 copper Substances 0.000 abstract description 12
- 238000005507 spraying Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 abstract description 3
- 238000007664 blowing Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 6
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- NNIPDXPTJYIMKW-UHFFFAOYSA-N iron tin Chemical compound [Fe].[Sn] NNIPDXPTJYIMKW-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
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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
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- 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 invention relates to the field of preparation of tin-copper alloy powder, in particular to a preparation method for the tin-copper alloy powder. The method comprises the following steps: melting block-shaped Cu<5>Sn<6>; vertically spraying molten Cu<5>Sn<6> fluid onto the surface of a high-speed rotating roller from top to bottom through a nozzle; rotationally throwing the fluid towards an atomizing chamber on one side through the roller to form liquid drops; in the atomizing chamber, blowing the liquid drops into a spraying cavity on one side of the atomizing chamber through high-pressure inert gas; spraying a gas-liquid mixture in the spraying cavity to a collecting chamber; and collecting the tin-copper alloy powder. According to the preparation method, the sprayed fluid is smashed through centrifugal force of the rotating roller, impacts on the liquid drops through high-speed gas, and is sprayed once again, so that the prepared powder is fine in grain size and uniform in grain size distribution. Moreover, a whole process flow is simple, and the machining cost is low.
Description
Technical field
The present invention relates to the preparation field of gun-metal powder, it is the preparation method of a kind of gun-metal powder specifically.
Background technology
Lithium cell is one of existing electrical equipment or the topmost power supply of power tool, and in order to improve the performance of lithium cell, improve the specific storage of negative pole, at present, most of manufacturer adopts tin negative pole material. But, in charge and discharge process, the cubical expansivity of tin negative pole is relatively big, can produce powder phenomenon-tion, cause cycle performance poor after long-term circulation. In order to address these problems, general employing prepares composite alloy as negative pole, such as gun-metal, tin iron alloy etc. The existing method preparing gun-metal powder is more, but prepares the complex process of tin copper, long flow path, cost height, and powder diameter distribution is even not.
Summary of the invention
For the problems referred to above, the present invention provides a kind of even particle size distribution and the preparation method of the lower gun-metal powder of cost.
The present invention solves the problems of the technologies described above the technical scheme adopted: the preparation method of a kind of gun-metal powder, comprises the following steps:
(1) by bulk Cu5Sn6Melting;
(2) by the Cu of melting5Sn6Fluid is vertically injected into the roller surface of high speed rotating from top to bottom by nozzle;
(3) fluid rotates to get rid of through roller and forms drop to the spray chamber of side;
(4) in spray chamber, drop is blown the spray chamber delivering to spray chamber side by high-pressure inert gas from bottom to up;
(5) gas-liquid mixture in spray chamber is injected into collecting chamber;
(6) gun-metal powder is collected.
As preferably, described roller surface has offered several spherical grooves.
As preferably, the fluid being injected into roller surface flows to groove, the fluid in groove gets rid of to spray chamber.
As preferably, groove is 0.5 1mm at the opening diameter of roller surface.
As preferably, the mass flow rate of fluid jet is 6 8g/s.
As preferably, the vertical range between nozzle and roller is 0.01 0.1mm.
As preferably, the diameter of roller is 40 50mm, roller rotating speed is 300-350r/min.
As preferably, in spray chamber, the flow direction of high-pressure inert gas and the angle of horizontal direction are 45 °--90 °.
As preferably, the flow velocity of high-pressure inert gas is 30m/s.
The fluid of injection is smashed by the present invention by rotating the centrifugal force of roller, then clashes into drop by high-speed gas, and then injection, and not only obtained powder diameter is relatively thin, even particle size distribution, and whole technical process is simple, tooling cost is low.
Embodiment
The present invention will be described below in detail, and illustrative examples and explanation in this present invention are used for explaining the present invention, but not as a limitation of the invention.
The preparation method of the gun-metal powder of the present invention, it adopts following step:
First by bulk Cu5Sn6Melting, then by the Cu of melting5Sn6Fluid is vertically injected into the roller surface of high speed rotating by nozzle; Roller surface has offered several spherical grooves, and the fluid that can be injected into roller surface flows to groove, extends the residence time of fluid on surface so that it is suitably cool, make the fluid in groove get rid of to the granularity uniformity coefficient after spray chamber so better; In order to avoid the residence time of fluid on surface excessively long, cause powder diameter excessive, the groove of the present invention is advisable with 0.5 1mm at the opening diameter of roller surface, and the mass flow rate that should ensure fluid jet is the vertical range between 6 8g/s, nozzle and roller is 0.01 0.1mm, the roller diameter simultaneously adopted is 40 50mm, and roller rotating speed is 300-350r/min; Get rid of and under the shock of high velocity air, enter spray chamber to the particle of spray chamber, thus second time refinement drop; In spray chamber, the flow direction of high-pressure inert gas and best 45 ° of the angle of horizontal direction--90 °, thinning effect is better, and the flow velocity of high-pressure inert gas keeps 30m/s to be advisable simultaneously; Gas-liquid mixture in spray chamber is again injected into collecting chamber under the pressure of high pressure gas, also can adopt nozzle during injection, thus carries out third time refinement; Finally collect gun-metal powder.
Embodiment 1
By bulk Cu5Sn6Melting, then by the Cu of melting5Sn6Fluid is vertically injected into the roller surface with groove of rotation by nozzle; Its further groove is 0.5mm, mass flow rate to be the vertical range between 6g/s, nozzle and roller the be 0.01mm of fluid jet, roller diameter at the opening diameter of roller surface is 40mm, and roller rotating speed is 300r/min; Simultaneously, in spray chamber, with keep 45 ° of angles with horizontal direction and lead to the speed of 30m/s into high-pressure inert gas clash into fluid to spray chamber, spraying into collecting chamber from spray chamber, finally collecting gun-metal powder, the diameter of all particle diameters is all between 8 15 μm by analysis.
Embodiment 2
By bulk Cu5Sn6Melting, then by the Cu of melting5Sn6Fluid is vertically injected into the roller surface with groove of rotation by nozzle; Its further groove is 0.7mm, mass flow rate to be the vertical range between 7g/s, nozzle and roller the be 0.05mm of fluid jet, roller diameter at the opening diameter of roller surface is 45mm, and roller rotating speed is 320r/min; Simultaneously, in spray chamber, with keep 60 ° of angles with horizontal direction and lead to the speed of 30m/s into high-pressure inert gas clash into fluid to spray chamber, spraying into collecting chamber from spray chamber, finally collecting gun-metal powder, the diameter of all particle diameters is all between 39 μm by analysis.
Embodiment 3
By bulk Cu5Sn6Melting, then by the Cu of melting5Sn6Fluid is vertically injected into the roller surface with groove of rotation by nozzle; Its further groove is 1.0mm, mass flow rate to be the vertical range between 8g/s, nozzle and roller the be 0.1mm of fluid jet, roller diameter at the opening diameter of roller surface is 42mm, and roller rotating speed is 350r/min;Simultaneously, in spray chamber, with keep 90 ° of angles with horizontal direction and lead to the speed of 30m/s into high-pressure inert gas clash into fluid to spray chamber, spraying into collecting chamber from spray chamber, finally collecting gun-metal powder, the diameter of all particle diameters is all between 6 14 μm by analysis.
The technical scheme embodiment of the present invention provided above is described in detail, applying specific case herein the principle of the embodiment of the present invention and enforcement mode to have been set forth, the explanation of above embodiment is only applicable to help the principle understanding the embodiment of the present invention; Meanwhile, for one of ordinary skill in the art, according to the embodiment of the present invention, all will change in embodiment and range of application, in sum, this description should not be construed as limitation of the present invention.
Claims (9)
1. a preparation method for gun-metal powder, comprises the following steps:
(1) by bulk Cu5Sn6Melting;
(2) by the Cu of melting5Sn6Fluid is vertically injected into the roller surface of high speed rotating from top to bottom by nozzle;
(3) fluid rotates to get rid of through roller and forms drop to the spray chamber of side;
(4) in spray chamber, drop is blown the spray chamber delivering to spray chamber side by high-pressure inert gas from bottom to up;
(5) gas-liquid mixture in spray chamber is injected into collecting chamber;
(6) gun-metal powder is collected.
2. the preparation method of gun-metal powder according to claim 1, it is characterised in that: described roller surface has offered several spherical grooves.
3. the preparation method of gun-metal powder according to claim 2, it is characterised in that: the fluid being injected into roller surface flows to groove, and the fluid in groove gets rid of to spray chamber.
4. the preparation method of gun-metal powder according to claim 3, it is characterised in that: groove is 0.5 1mm at the opening diameter of roller surface.
5. according to the preparation method of gun-metal powder described in any one in Claims 1-4, it is characterised in that: the mass flow rate of fluid jet is 6 8g/s.
6. the preparation method of gun-metal powder according to claim 5, it is characterised in that: the vertical range between nozzle and roller is 0.01 0.1mm.
7. the preparation method of gun-metal powder according to claim 6, it is characterised in that: the diameter of roller is 40 50mm, and roller rotating speed is 300-350r/min.
8. the preparation method of gun-metal powder according to claim 1, it is characterised in that: in spray chamber, the flow direction of high-pressure inert gas and the angle of horizontal direction are 45 °--90 °.
9. the preparation method of gun-metal powder according to claim 8, 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 |
|---|---|---|---|
| CN201610053659.2A CN105680014B (en) | 2016-01-27 | 2016-01-27 | A kind of preparation method of gun-metal powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610053659.2A CN105680014B (en) | 2016-01-27 | 2016-01-27 | A kind of preparation method of gun-metal powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105680014A true CN105680014A (en) | 2016-06-15 |
| CN105680014B CN105680014B (en) | 2019-02-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610053659.2A Active CN105680014B (en) | 2016-01-27 | 2016-01-27 | A kind of preparation method of gun-metal powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105680014B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065445A (en) * | 2016-07-29 | 2016-11-02 | 柳州豪祥特科技有限公司 | Powder metallurgic method prepares the method for 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 (6)
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|---|---|---|---|---|
| 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 |
| JP2006213986A (en) * | 2005-02-07 | 2006-08-17 | Minerva Kiki Kk | Method for producing fine metallic powder and production apparatus therefor |
| 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 |
-
2016
- 2016-01-27 CN CN201610053659.2A patent/CN105680014B/en active Active
Patent Citations (6)
| 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 |
| JP2006213986A (en) * | 2005-02-07 | 2006-08-17 | Minerva Kiki Kk | Method for producing fine metallic powder and production apparatus therefor |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065445A (en) * | 2016-07-29 | 2016-11-02 | 柳州豪祥特科技有限公司 | Powder metallurgic method prepares the method for Cu-base composites |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105680014B (en) | 2019-02-01 |
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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 |