CN108176851A - A kind of metallic aluminium powder coats means of defence - Google Patents
A kind of metallic aluminium powder coats means of defence Download PDFInfo
- Publication number
- CN108176851A CN108176851A CN201810002694.0A CN201810002694A CN108176851A CN 108176851 A CN108176851 A CN 108176851A CN 201810002694 A CN201810002694 A CN 201810002694A CN 108176851 A CN108176851 A CN 108176851A
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- CN
- China
- Prior art keywords
- aluminium powder
- metallic aluminium
- solvent
- defence
- metallic
- 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.)
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Classifications
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- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/102—Metallic powder coated with organic material
Abstract
The invention discloses a kind of metallic aluminium powders to coat means of defence, including：Step 1: solid paraffin is dissolved in solvent, solution is formed；Step 2: metallic aluminium powder is added in above-mentioned solution, stir, be uniformly mixed；Step 3: by metallic aluminium powder and liquid phase separation；Step 4: the aluminium powder after separation is avoided into conglomeration by sieve；Step 5: drying, the metallic aluminium powder after being coated.Method provided by the invention is extremely simple, but covered effect is good, convenient for promoting and using.
Description
Technical field
The present invention relates to a kind of processing methods of aluminium powder, and in particular to a kind of metallic aluminium powder coats means of defence, belongs to and contains
It can technical field of material.
Background technology
Aluminium powder is widely used in as flammable high energy material in PBX explosive formulations, and addition can greatly improve PBX explosives
Powder charge compact density promotes detonation property so that formula has the characteristics of high quick-fried heat, high-power.But aluminium powder own face activity
Height, powder surface is easily oxidised and inactivates during storage and use, forms one layer of oxide on surface layer, causes activity big
Width declines, for the promotion of detonation property to be greatly reduced after PBX explosives.
By aluminium powder surface coat after, be spherical metal aluminium powder surface formed one layer of inert membrane, film due to aluminium powder
Between the physically or chemically active force that is formed and be tightly attached to ball aluminum powder surface, by metallic aluminium powder ontology and air exclusion,
Substantially weaken the oxidation reaction during storage and use, reduce the formation of oxide layer, ensure the content of pure aluminum, avoid losing
It is living.
Invention content
The object of the present invention is to provide one kind is simple for process, while the metallic aluminium powder that metallic aluminium powder preferably protects can be coated
Method.
The invention is realized in this way：
A kind of metallic aluminium powder coats means of defence, including：
Step 1: solid paraffin is dissolved in solvent, solution is formed；
Step 2: metallic aluminium powder is added in above-mentioned solution, stir, be uniformly mixed；
Step 3: by metallic aluminium powder and liquid phase separation；
Step 4: the aluminium powder after separation is avoided into conglomeration by sieve；
Step 5: drying, the metallic aluminium powder after being coated.
Further scheme is：
In step 1, solvent is the weight of petroleum ether, White Mineral Oil, chloroform, ethyl acetate or ether, solid paraffin and solvent
Than being usually no more than 1：10.
Further scheme is：
In step 1, dissolving is dissolved in a heated condition.
Further scheme is：
It is that mixture is stirred under vacuum by metallic aluminium powder and liquid phase separation in step 3, it will be extra molten
Agent is gradually volatilized, and solvent, recycling are collected by the storage tank in vacuum line；Or by aluminium powder and solution by way of filtering
Separation, filtrate are continuing with after supplementing paraffin thereto after collecting.
Further scheme is：
In step 5, drying is that the cladding aluminium powder after sieving is dried more than 3h under the conditions of not less than 30 DEG C.
Method provided by the invention is extremely simple, but covered effect is good, convenient for promoting and using.Aluminium powder after cladding exists
1h is generated without gas in 60 DEG C of hot water.
Description of the drawings
Fig. 1 is a kind of metallic aluminium powder cladding means of defence flow chart.
Specific embodiment
The invention will be further described in the following with reference to the drawings and specific embodiments.
Embodiment 1
A kind of metallic aluminium powder coats means of defence, including：
The first step prepares protective layer composite solution
By solid paraffin and petroleum ether according to weight ratio 1：10 ratio is added in mixing vessel, solid under agitation
Body paraffin gradually dissolves, and up to no remaining solid object, forms homogeneous composite solution, can by way of heating accelerating solid stone
Wax dissolves.
Second step, metallic aluminium powder mixing cladding
Metallic aluminium powder to be covered is added in composite solution, stirring, until aluminium powder is uniformly mixed with solution, form homogeneous material
Slurry.
Third walks, solid phase separation
Slurry is stirred under vacuum, excess of solvent is gradually volatilized, is received by the storage tank in vacuum line
Collect solvent, recycling.
4th step, sieving
Solid slurry after liquid phase separation is passed through into sieve, it would be possible to which existing reunion is broken up.
5th step is dried
Cladding aluminium powder after sieving under the conditions of not less than 30 DEG C is dried into more than 3h, residual solvent is further removed, obtains
To cladding aluminium powder product.
Embodiment 2
A kind of metallic aluminium powder coats means of defence, including：
The first step prepares protective layer composite solution
By solid paraffin and White Mineral Oil according to weight ratio 1：11 ratio is added in mixing vessel, solid under agitation
Body paraffin gradually dissolves, and up to no remaining solid object, forms homogeneous composite solution, can by way of heating accelerating solid stone
Wax dissolves.
Second step, metallic aluminium powder mixing cladding
Metallic aluminium powder to be covered is added in composite solution, stirring, until aluminium powder is uniformly mixed with solution, form homogeneous material
Slurry.
Third walks, solid phase separation
Aluminium powder is detached with solution by way of filtering, filtrate can be continuing with after supplementing paraffin thereto after collecting.
4th step, sieving
Solid slurry after liquid phase separation is passed through into sieve, it would be possible to which existing reunion is broken up.
5th step is dried
Cladding aluminium powder after sieving under the conditions of not less than 30 DEG C is dried into more than 3h, residual solvent is further removed, obtains
To cladding aluminium powder product.
Embodiment 3
A kind of metallic aluminium powder coats means of defence, including：
The first step prepares protective layer composite solution
By solid paraffin and ethyl acetate according to weight ratio 1：15 ratio is added in mixing vessel, under agitation
Solid paraffin gradually dissolves, and up to no remaining solid object, forms homogeneous composite solution, can by way of heating accelerating solid
Paraffin dissolves.
Second step, metallic aluminium powder mixing cladding
Metallic aluminium powder to be covered is added in composite solution, stirring, until aluminium powder is uniformly mixed with solution, form homogeneous material
Slurry.
Third walks, solid phase separation
Slurry is stirred under vacuum, excess of solvent is gradually volatilized, is received by the storage tank in vacuum line
Collect solvent, recycling.
4th step, sieving
Solid slurry after liquid phase separation is passed through into sieve, it would be possible to which existing reunion is broken up.
5th step is dried
Cladding aluminium powder after sieving under the conditions of not less than 30 DEG C is dried into more than 3h, residual solvent is further removed, obtains
To cladding aluminium powder product.
Although reference be made herein to invention has been described for explanatory embodiment of the invention, and above-described embodiment is only this hair
Bright preferable embodiment, embodiments of the present invention are simultaneously not restricted to the described embodiments, it should be appreciated that people in the art
Member can be designed that a lot of other modifications and embodiment, these modifications and embodiment will be fallen in principle disclosed in the present application
Within scope and spirit.
Claims (5)
1. a kind of metallic aluminium powder coats means of defence, it is characterised in that including：
Step 1: solid paraffin is dissolved in solvent, solution is formed；
Step 2: metallic aluminium powder is added in above-mentioned solution, stir, be uniformly mixed；
Step 3: by metallic aluminium powder and liquid phase separation；
Step 4: the aluminium powder after separation is avoided into conglomeration by sieve；
Step 5: drying, the metallic aluminium powder after being coated.
2. metallic aluminium powder cladding means of defence according to claim 1, it is characterised in that：
In step 1, solvent is petroleum ether, White Mineral Oil, chloroform, ethyl acetate or ether, and the weight ratio of solid paraffin and solvent is not
More than 1：10.
3. metallic aluminium powder cladding means of defence according to claim 1, it is characterised in that：
In step 1, dissolving is dissolved in a heated condition.
4. metallic aluminium powder cladding means of defence according to claim 1, it is characterised in that：
That mixture is stirred under vacuum by metallic aluminium powder and liquid phase separation in step 3, by excess of solvent by
It gradually volatilizees, solvent, recycling is collected by the storage tank in vacuum line；Or by aluminium powder and solution point by way of filtering
From filtrate is continuing with after supplementing paraffin thereto after collecting.
5. metallic aluminium powder cladding means of defence according to claim 1, it is characterised in that：
In step 5, drying is that the cladding aluminium powder after sieving is dried more than 3h under the conditions of not less than 30 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810002694.0A CN108176851A (en) | 2018-01-02 | 2018-01-02 | A kind of metallic aluminium powder coats means of defence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810002694.0A CN108176851A (en) | 2018-01-02 | 2018-01-02 | A kind of metallic aluminium powder coats means of defence |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108176851A true CN108176851A (en) | 2018-06-19 |
Family
ID=62549839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810002694.0A Pending CN108176851A (en) | 2018-01-02 | 2018-01-02 | A kind of metallic aluminium powder coats means of defence |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108176851A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482860A (en) * | 2018-12-13 | 2019-03-19 | 中国工程物理研究院化工材料研究所 | A kind of micronized method of spherical shape of nanometer aluminium powder |
| CN111421132A (en) * | 2019-11-11 | 2020-07-17 | 殷柳 | Aluminum powder protection method |
| CN114381193A (en) * | 2022-01-26 | 2022-04-22 | 山东大学 | Composite aluminum powder and preparation method and application thereof |
| CN114752263A (en) * | 2022-04-12 | 2022-07-15 | 山东大学 | Low-dielectric low-infrared-emissivity coating and preparation method and application thereof |
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| JPH11131102A (en) * | 1997-10-30 | 1999-05-18 | Nittetsu Mining Co Ltd | Coated powder and its production |
| CN1513628A (en) * | 2003-05-21 | 2004-07-21 | 昆明理工恒达科技有限公司 | Production method of scale shpared zinc powler |
| CN102303114A (en) * | 2011-05-30 | 2012-01-04 | 深圳市格林美高新技术股份有限公司 | Cladding cobalt powder and preparation method thereof |
| CN103506621A (en) * | 2013-10-11 | 2014-01-15 | 南京理工大学 | Preparation method for fluororubber cladding nanometer aluminum powder composite particles |
| CN103952209A (en) * | 2014-04-30 | 2014-07-30 | 广东常润摩擦科技有限公司 | Preparation method of composite lubricating oil |
| CN104073233A (en) * | 2014-07-23 | 2014-10-01 | 中国石油大学(华东) | Self-heat generation chemical temperature rise agent for alkaline thickened oil reservoir and use method |
| CN104889387A (en) * | 2015-05-11 | 2015-09-09 | 李广兵 | Preparation method for high polymer composite nano aluminum powder |
| CN107282919A (en) * | 2017-06-14 | 2017-10-24 | 南京师范大学 | A kind of nanometer aluminium powder/paraffin compound particle containing energy and its preparation method and application |
| CN107578912A (en) * | 2017-09-25 | 2018-01-12 | 烟台正海磁性材料股份有限公司 | A kind of preparation method of the neodymium iron boron magnetic body with high-coercive force |
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2018
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5662903A (en) * | 1979-10-23 | 1981-05-29 | Hitachi Maxell Ltd | Metal magnetic powder and its treatment |
| JPH11131102A (en) * | 1997-10-30 | 1999-05-18 | Nittetsu Mining Co Ltd | Coated powder and its production |
| CN1513628A (en) * | 2003-05-21 | 2004-07-21 | 昆明理工恒达科技有限公司 | Production method of scale shpared zinc powler |
| CN102303114A (en) * | 2011-05-30 | 2012-01-04 | 深圳市格林美高新技术股份有限公司 | Cladding cobalt powder and preparation method thereof |
| CN103506621A (en) * | 2013-10-11 | 2014-01-15 | 南京理工大学 | Preparation method for fluororubber cladding nanometer aluminum powder composite particles |
| CN103952209A (en) * | 2014-04-30 | 2014-07-30 | 广东常润摩擦科技有限公司 | Preparation method of composite lubricating oil |
| CN104073233A (en) * | 2014-07-23 | 2014-10-01 | 中国石油大学(华东) | Self-heat generation chemical temperature rise agent for alkaline thickened oil reservoir and use method |
| CN104889387A (en) * | 2015-05-11 | 2015-09-09 | 李广兵 | Preparation method for high polymer composite nano aluminum powder |
| CN107282919A (en) * | 2017-06-14 | 2017-10-24 | 南京师范大学 | A kind of nanometer aluminium powder/paraffin compound particle containing energy and its preparation method and application |
| CN107578912A (en) * | 2017-09-25 | 2018-01-12 | 烟台正海磁性材料股份有限公司 | A kind of preparation method of the neodymium iron boron magnetic body with high-coercive force |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482860A (en) * | 2018-12-13 | 2019-03-19 | 中国工程物理研究院化工材料研究所 | A kind of micronized method of spherical shape of nanometer aluminium powder |
| CN111421132A (en) * | 2019-11-11 | 2020-07-17 | 殷柳 | Aluminum powder protection method |
| CN114381193A (en) * | 2022-01-26 | 2022-04-22 | 山东大学 | Composite aluminum powder and preparation method and application thereof |
| CN114752263A (en) * | 2022-04-12 | 2022-07-15 | 山东大学 | Low-dielectric low-infrared-emissivity coating and preparation method and application thereof |
| CN114752263B (en) * | 2022-04-12 | 2023-02-28 | 山东大学 | Low-dielectric low-infrared-emissivity coating and preparation method and application thereof |
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Application publication date: 20180619 |