CN102717087A - Method for preparing spherical metal powder by aid of water atomization - Google Patents
Method for preparing spherical metal powder by aid of water atomization Download PDFInfo
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- CN102717087A CN102717087A CN2012101913802A CN201210191380A CN102717087A CN 102717087 A CN102717087 A CN 102717087A CN 2012101913802 A CN2012101913802 A CN 2012101913802A CN 201210191380 A CN201210191380 A CN 201210191380A CN 102717087 A CN102717087 A CN 102717087A
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- water
- atomization
- powder
- metal powder
- spherical metal
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Abstract
The invention discloses a method for preparing spherical metal powder by the aid of water atomization, and relates to a method for preparing spherical powder by using water as an atomizing medium. A water atomization method is adopted in an implementation process of the method. The method is characterized in that a secondary cold water atomizing nozzle is further arranged on the lower side of a water atomizing nozzle to carry out secondary atomization. The method for preparing the spherical metal powder includes that secondary water atomization is adopted, a quenched water focus is arranged on the lower side of a primary atomization focus and separated from the primary atomization focus by a distance ranging from 0.5cm to 2cm, the degree of sphericity of the powder which is atomized normally and then is prepared under the effect of secondary atomization of quenched water (with the temperature lower than 8 DEG C) is close to that powder prepared under a gas atomization effect, and the particle size of the spherical metal powder is smaller than that of powder prepared by primary water atomization.
Description
Technical field
A kind of water atomization prepares the method for globular metallic powder, and relating to a kind of is the method that atomizing medium prepares spherical powder with water.
Background technology
Prepare metal dust with atomization, its medium has two kinds, and a kind of is gas; Especially inert gas, the microscopic appearance of preparation powder delivery is the almost sphere of rule, and oxygen content is lower; If atomization process control is fine; The powder of preparing can directly pass through and sieve into product, but production cost is higher, and safety precautions is had relatively high expectations.Another kind is a water, though production cost is low, safe, the microscopic appearance of the powder of output is irregular, can't satisfy the demand to the industry that pattern has higher requirements.
Summary of the invention
The object of the invention is exactly the deficiency that exists to above-mentioned prior art, provides that a kind of cost is low, safe, the water atomization of powder microscopic appearance rule prepares the method for globular metallic powder.
The objective of the invention is to realize through following technical scheme.
A kind of water atomization prepares the method for globular metallic powder, and its process adopts water atomization, it is characterized in that below water atomizing nozzle, locating to be provided with a secondary cold water atomizer again, carries out secondary-atomizing.
A kind of water atomization of the present invention prepares the method for globular metallic powder, it is characterized in that the secondary cold water atomizer that is provided with is positioned at 0.5cm～2cm place, water atomizing nozzle below.
A kind of water atomization of the present invention prepares the method for globular metallic powder, and the cold water temperature of the secondary cold water atomizer that it is characterized in that being provided with is less than 8 ℃.
A kind of water atomization of the present invention prepares the method for globular metallic powder, adopts the powder after water atomization normally atomizes, and below water atomizing nozzle, locates to be provided with a secondary cold water atomizer again; Carry out secondary-atomizing; Not only sphericity is near the effect of aerosolization, and the granularity of powder is thinner than the primary water atomizing, through the effect of chilled water (chw); Can make the sphericity subglobular, basic sphericity near aerosolization.
The specific embodiment
A kind of water atomization prepares the method for globular metallic powder, adopts water atomization, below water atomizing nozzle, locates to be provided with a secondary cold water atomizer again, carries out secondary-atomizing; The secondary cold water atomizer that is provided with is positioned at 0.5～2cm place, water atomizing nozzle below; The cold water temperature of the secondary cold water atomizer that is provided with is less than 8 ℃.
During operation, below existing primary nozzle focus, be no more than the chilled water (chw) focus is set, the powder after the normal atomizing is through the secondary-atomizing effect of chilled water (chw).
Embodiment
Sheet nickel adopts water atomization after fusion, below water atomizing nozzle, locate to be provided with a secondary cold water atomizer again, carries out secondary-atomizing; The secondary cold water atomizer that is provided with is positioned at 0.5cm～2cm place, water atomizing nozzle below; The cold water temperature of the secondary cold water atomizer that is provided with is less than 8 ℃.The atomizing nickel powder microscopic appearance that obtains is spherical in shape.
Claims (3)
1. a water atomization prepares the method for globular metallic powder, and its process adopts water atomization, it is characterized in that below water atomizing nozzle, locating to be provided with a secondary cold water atomizer again, carries out secondary-atomizing.
2. according to right 1 described a kind of method for preparing globular metallic powder, it is characterized in that the secondary cold water atomizer that is provided with is positioned at 0.5～2cm place, water atomizing nozzle below.
3. according to right 1 described a kind of method for preparing globular metallic powder, the cold water temperature of the secondary cold water atomizer that it is characterized in that being provided with is less than 8 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101913802A CN102717087A (en) | 2012-06-12 | 2012-06-12 | Method for preparing spherical metal powder by aid of water atomization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101913802A CN102717087A (en) | 2012-06-12 | 2012-06-12 | Method for preparing spherical metal powder by aid of water atomization |
Publications (1)
| Publication Number | Publication Date |
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| CN102717087A true CN102717087A (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2012101913802A Pending CN102717087A (en) | 2012-06-12 | 2012-06-12 | Method for preparing spherical metal powder by aid of water atomization |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493187A (en) * | 2014-12-25 | 2015-04-08 | 安徽旭晶粉体新材料科技有限公司 | Spray atomization process used in process of preparing metal powder by water atomization |
| CN106041050A (en) * | 2016-07-21 | 2016-10-26 | 安徽旭晶粉体新材料科技有限公司 | Antioxidative manganiferous copper alloy powder prepared by water mist method |
| CN107427926A (en) * | 2015-03-30 | 2017-12-01 | 杰富意钢铁株式会社 | The manufacture method of water atomization metal dust |
| CN107876789A (en) * | 2017-12-14 | 2018-04-06 | 民乐县锦世建材新材料有限责任公司 | A kind of method of water atomization production metal dust |
| CN114472908A (en) * | 2022-02-09 | 2022-05-13 | 安徽奥微新材料有限公司 | Metal powder preparation method based on two-stage atomization method |
Citations (5)
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|---|---|---|---|---|
| US4191516A (en) * | 1976-12-23 | 1980-03-04 | Powdrex Limited | Atomizer for making powder |
| JPH03232907A (en) * | 1990-02-07 | 1991-10-16 | Mitsubishi Materials Corp | Water atomizing apparatus |
| JPH03247709A (en) * | 1990-02-23 | 1991-11-05 | Kawasaki Steel Corp | Apparatus for manufacturing metal powder |
| CN101992301A (en) * | 2010-12-06 | 2011-03-30 | 石家庄铁道大学 | Method for producing spherical stainless steel powder material by using high pressure water atomization method |
| CN201895087U (en) * | 2010-11-04 | 2011-07-13 | 江苏大方金属粉末有限公司 | High pressure water atomized composite nozzle |
-
2012
- 2012-06-12 CN CN2012101913802A patent/CN102717087A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4191516A (en) * | 1976-12-23 | 1980-03-04 | Powdrex Limited | Atomizer for making powder |
| JPH03232907A (en) * | 1990-02-07 | 1991-10-16 | Mitsubishi Materials Corp | Water atomizing apparatus |
| JPH03247709A (en) * | 1990-02-23 | 1991-11-05 | Kawasaki Steel Corp | Apparatus for manufacturing metal powder |
| CN201895087U (en) * | 2010-11-04 | 2011-07-13 | 江苏大方金属粉末有限公司 | High pressure water atomized composite nozzle |
| CN101992301A (en) * | 2010-12-06 | 2011-03-30 | 石家庄铁道大学 | Method for producing spherical stainless steel powder material by using high pressure water atomization method |
Non-Patent Citations (2)
| Title |
|---|
| 《粉末冶金技术》 20021230 麻洪秋等 "急冷水雾化工艺对金属粉末性能的影响" 1-3 第20卷, 第6期 * |
| 麻洪秋等: ""急冷水雾化工艺对金属粉末性能的影响"", 《粉末冶金技术》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493187A (en) * | 2014-12-25 | 2015-04-08 | 安徽旭晶粉体新材料科技有限公司 | Spray atomization process used in process of preparing metal powder by water atomization |
| CN107427926A (en) * | 2015-03-30 | 2017-12-01 | 杰富意钢铁株式会社 | The manufacture method of water atomization metal dust |
| CN107427926B (en) * | 2015-03-30 | 2019-10-29 | 杰富意钢铁株式会社 | The manufacturing method of water atomization metal powder |
| US10589356B2 (en) | 2015-03-30 | 2020-03-17 | Jfe Steel Corporation | Method for producing water-atomized metal powder |
| CN106041050A (en) * | 2016-07-21 | 2016-10-26 | 安徽旭晶粉体新材料科技有限公司 | Antioxidative manganiferous copper alloy powder prepared by water mist method |
| CN107876789A (en) * | 2017-12-14 | 2018-04-06 | 民乐县锦世建材新材料有限责任公司 | A kind of method of water atomization production metal dust |
| CN114472908A (en) * | 2022-02-09 | 2022-05-13 | 安徽奥微新材料有限公司 | Metal powder preparation method based on two-stage atomization method |
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Application publication date: 20121010 |