CN103406537B - A kind of aluminium powder and its manufacture method for metallurgy industry - Google Patents
A kind of aluminium powder and its manufacture method for metallurgy industry Download PDFInfo
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- CN103406537B CN103406537B CN201310294660.0A CN201310294660A CN103406537B CN 103406537 B CN103406537 B CN 103406537B CN 201310294660 A CN201310294660 A CN 201310294660A CN 103406537 B CN103406537 B CN 103406537B
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- aluminium powder
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- aluminium
- pressure breaking
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Abstract
The present invention provides a kind of aluminium powder and its manufacture method for metallurgy industry.The size scope of the aluminium powder is nominal dimension between 0.01 millimeter to 1.0 millimeters；Its particle size deviation scope is ± the 0.5% of nominal dimension；Its average hardness is determined under load for 65HV ± 5HV；Its hardness deviation scope is ± 5HV.The manufacture method of the aluminium powder includes：Sorting, dissolve, be incubated, titrating, pressure breaking, cooling, drying and screening.Compared with prior art, the manufacture method of the aluminium powder that the present invention is provided, it is used and will dissolve under a certain pressure shape aluminium liquid to instill pressure breaking device with certain speed by special titration disk, and the titrating solution instilled in the pressure breaking device is crushed by the * gas curtains being arranged in the pressure breaking device.So as to be made aluminium powder.The particle size deviation of the aluminium powder that the method is made is small, hardness is uniform；And the method can improve working environment, security risk is reduced, save cost of material.
Description
【Technical field】
The present invention relates to a kind of metallic article and its manufacture method, more particularly to a kind of aluminium powder for metallurgy industry and its
Manufacture method.
【Background technology】
It is presently used for metallurgy industry and uses mechanical powder mostly as the metallic aluminium powder that additive, reducing agent, degasser are used
Broken, grinding method is made.The aluminium powder being made up of the method, due to being limited by mechanical condition, can not in granularity requirements
Ensured well, deviation is larger；Simultaneously as the effect of machinery, its hardness range is also larger and uneven.Particularly
It is made up in the production process of aluminium powder of the above method, substantial amounts of dust and dry sound can be produced, causes work under bad environment, safety
The defects such as risk is larger, wastage of material.
Therefore, it is necessary to provide a kind of improved technical scheme to overcome above mentioned problem.
【The content of the invention】
It is an object of the invention to provide a kind of aluminium powder and its manufacture method for metallurgy industry, by the manufacturer
The particle size deviation of the aluminium powder that method is made is small, hardness is uniform, and the manufacture method can improve working environment, reduce safety wind
Danger, saving cost of material.
In order to solve the above problems, according to an aspect of the present invention, the present invention provides a kind of metallic aluminium powder, its granularity chi
Very little scope is nominal dimension between 0.01 millimeter to 1.0 millimeters；Its particle size deviation scope is ± the 0.5% of nominal dimension.
Further, its average hardness is determined under load for 65HV ± 5HV；Its hardness deviation scope is ± 5HV.
Further, its weight percent composition for aluminium be more than or equal to 99.99%, balance of other metals and inevitably
Impurity.
According to another aspect of the present invention, the present invention provides a kind of manufacture method of aluminium powder, and it includes：Sorting, dissolve,
Insulation, titration, pressure breaking, cooling, drying and screening.
Further, described dissolving refers under anoxic condition, selected aluminium to be added in titration stove, and pressure condition is
0.5Mpa, between 660 to 710 degrees Celsius, it is aluminium liquid to be allowed to molten to heating temperature range.
Further, the insulation, titration refers to keep at a certain temperature, by being arranged at the titration aluminium liquid
Special titration disk on stove is instilled in pressure breaking device, and at 700 degrees Celsius, pressure is 0.08Mpa to control temperature.
Further, by adjusting the size of the titration mouth in the titration disk to realize the varigrained need of finished product aluminium powder
Ask.
Further, the pressure breaking refers to that will instill titrating solution in the pressure breaking device by being arranged at
The gas curtain stated in pressure breaking device is crushed, and pressure condition is 1.2Mpa.
Further, the valve that gas curtain is formed in the pressure breaking device presses spiral distribution, not of uniform size.
Further, the cooling, drying refers to that broken rear object is cooled into normal temperature by coolant；Then drying
Dried in case, drying temperature is 80 ± 5 degrees Celsius, the time is 60 minutes；It is described screening refer to by the object after drying successively
The classification of size and abnormal shape is carried out, to obtain required product.
Compared with prior art, the aluminium powder and its manufacture method for metallurgy industry in the present invention, wherein, the manufacture
Method sprays to a specific gas curtain by that will dissolve shape aluminium liquid under a certain pressure, is allowed to broken in gas curtain, so as to be made aluminium
Powder.The particle size deviation of the aluminium powder that the method is made is small, hardness is uniform, and the method can improve working environment, reduces safety
Risk, saves cost of material.
【Brief description of the drawings】
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will use needed for embodiment description
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill of field, without having to pay creative labor, other can also be obtained according to these accompanying drawings
Accompanying drawing.Wherein：
Fig. 1 is the schematic flow sheet of the manufacture method of present invention aluminium powder in a specific embodiment.
【Specific embodiment】
It is below in conjunction with the accompanying drawings and specific real to enable the above objects, features and advantages of the present invention more obvious understandable
The present invention is further detailed explanation to apply mode.
" one embodiment " or " embodiment " referred to herein refers in may be included at least one implementation of the invention
Special characteristic, structure or characteristic." in one embodiment " that different places occur in this manual not refers both to same
Individual embodiment, nor the single or selective embodiment mutually exclusive with other embodiment.
Metallic aluminium powder in the present invention weight percent composition for aluminium be more than or equal to 99.99%, balance of other metals and
Inevitable impurity；Its average hardness is determined under load for 65HV ± 5HV；Its hardness deviation scope is ± 5HV.
The size scope of the aluminium powder be nominal dimension between 0.01 millimeter to 1.0 millimeters, its particle size deviation model
Enclose is ± the 0.5% of nominal dimension.
The manufacture method of the metallic aluminium powder introduced below.
The manufacture method of the metallic aluminium powder includes：Sorting, dissolve, be incubated, titrating, pressure breaking, cooling, drying, sieve
Choosing, inspection, packaging and storage.
Refer to shown in Fig. 1, it is the flow signal of the manufacture method of present invention aluminium powder in a specific embodiment
Figure.
Step 110, sorting, the sorting refers to constitute consistent with finished product aluminium powder from element, and hardness deviation is in finished product aluminium
Aluminium in the range of powder standard hardness ± 10HV is used as raw materials for production.
Step 120, dissolves, and described dissolving refers to that selected aluminium is added the drop with sealing property and heating and thermal insulation performance
Determine in stove, be passed through inert gas, carry out anoxybiotic protection, pressure condition is 0.5Mpa, and heating temperature range is Celsius 660 to 710
Between degree, it is allowed to fully dissolve, forms aluminium liquid.
Step 130, insulation, titration, the insulation, titration refer to that aluminium liquid is maintained at a specific temperature, by setting
The special titration disk being placed on the titration stove, in instilling pressure breaking device with certain speed, control temperature is Celsius 700
Degree, pressure is 0.08Mpa；By adjusting the size of the titration mouth in the titration disk to realize the varigrained need of finished product aluminium powder
Ask.
Step 140, pressure breaking, the pressure breaking refers to pass through the titrating solution instilled in the pressure breaking device
The gas curtain being arranged in the pressure breaking device is crushed.The valve for forming gas curtain in the pressure breaking device presses spiral
Shape is distributed, and not of uniform size, pressure condition is 1.2Mpa.
Step 150, cooling, drying, the cooling, drying refer to that broken rear object is cooled into normal temperature by coolant；
Then dry in an oven, drying temperature is 80 ± 5 degrees Celsius, the time is 60 minutes.
Step 160, screening, the screening refers to the classification that object after drying is carried out size and abnormal shape successively, can be with
Carried out in size selection machine and special-shaped screening machine respectively, the qualified products consistent with finished product aluminium powder of size and dimension needed for obtaining
（Obtain required product）, substandard products collect apply mechanically.
Step 170, inspection, packaging and storage, the inspection, packaging and storage refer to that screening certified products are carried out into materialization inspection,
To ensure that its quality is consistent with required product aluminium powder；Then certain specification packaging and storage is pressed, various bags such as paper bag, wooden barrel are packaged with
Dress mode.
Provided by the present invention for the manufacture method of the aluminium powder of metallurgy industry, it is used will dissolve shape aluminium under a certain pressure
Liquid instills pressure breaking device by special titration disk with certain speed, and will instill the drop in the pressure breaking device
Determine liquid to be crushed by the gas curtain being arranged in the pressure breaking device.So as to be made aluminium powder.The aluminium powder that the method is made
Particle size deviation is small, hardness is uniform；And the method compares traditional handicraft to be had the advantages that without dust, low-loss, noiseless, from
And working environment can be improved, and security risk is reduced, save cost of material.
It is pointed out that any change that one skilled in the art is done to specific embodiment of the invention
All without departing from the scope of claims of the present invention.Correspondingly, the scope of claim of the invention is also not merely limited to
In previous embodiment.
Claims (6)
1. a kind of manufacture method of aluminium powder, it is characterised in that it includes：Sorting, dissolve, be incubated, titrating, pressure breaking, cooling,
Drying and screening,
Described dissolving refers under anoxic condition, selected aluminium to be added in titration stove, and it is aluminium liquid to be allowed to molten；
The insulation, titration refer to keep at a certain temperature aluminium liquid, by the special drop being arranged on the titration stove
Price fixing is instilled in pressure breaking device, and finished product aluminium powder difference grain is realized by adjusting the size of the titration mouth in the titration disk
The demand of degree；
The pressure breaking refers to that the titrating solution that will be instilled in the pressure breaking device is filled by being arranged at the pressure breaking
Gas curtain in putting is crushed, and the valve that gas curtain is formed in the pressure breaking device presses spiral distribution, not of uniform size.
2. manufacture method according to claim 1, it is characterised in that
The pressure condition for dissolving is 0.5Mpa, and heating temperature range is between 660 to 710 degrees Celsius.
3. manufacture method according to claim 2, it is characterised in that when the insulation, titration, control temperature is taken the photograph 700
Family name's degree, pressure is 0.08Mpa.
4. manufacture method according to claim 1, it is characterised in that the pressure condition of the pressure breaking is 1.2Mpa.
5. manufacture method according to claim 4, it is characterised in that the cooling, drying refer to will it is broken after object lead to
Supercooling liquid is cooled to normal temperature；Then dry in an oven, drying temperature is 80 ± 5 degrees Celsius, the time is 60 minutes；The sieve
Choosing refers to the classification that the object after drying is carried out size and abnormal shape successively, to obtain required product.
6. a kind of metallic aluminium powder, it is characterised in that the aluminium powder by any described aluminium powders of claim 1-5 manufacturer's legal system
, the size scope of the aluminium powder is nominal dimension between 0.01 millimeter to 1.0 millimeters；Its particle size deviation scope is public affairs
Claim ± the 0.5% of size,
Its average hardness is determined under load for 65HV ± 5HV；Its hardness deviation scope is ± 5HV,
Its weight percent composition is more than or equal to 99.99%, balance of other metals and inevitable impurity for aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310294660.0A CN103406537B (en) | 2013-07-13 | 2013-07-13 | A kind of aluminium powder and its manufacture method for metallurgy industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310294660.0A CN103406537B (en) | 2013-07-13 | 2013-07-13 | A kind of aluminium powder and its manufacture method for metallurgy industry |
Publications (2)
| Publication Number | Publication Date |
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| CN103406537A CN103406537A (en) | 2013-11-27 |
| CN103406537B true CN103406537B (en) | 2017-07-07 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2728107A (en) * | 1953-09-18 | 1955-12-27 | Dow Chemical Co | Atomizing aluminum |
| CN1911569A (en) * | 2006-09-01 | 2007-02-14 | 鞍钢实业微细铝粉有限公司 | Production technology of two-nozzle atomization aluminium powder |
| CN102151836A (en) * | 2010-11-30 | 2011-08-17 | 湖南金天铝业高科技有限公司 | Secondary crushing process and device of pulverized aluminum powder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101285561B1 (en) * | 2006-10-27 | 2013-07-15 | 나노텍 메탈스, 인코포레이티드 | Atomized picoscale composite aluminum alloy and method therefor |
-
2013
- 2013-07-13 CN CN201310294660.0A patent/CN103406537B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2728107A (en) * | 1953-09-18 | 1955-12-27 | Dow Chemical Co | Atomizing aluminum |
| CN1911569A (en) * | 2006-09-01 | 2007-02-14 | 鞍钢实业微细铝粉有限公司 | Production technology of two-nozzle atomization aluminium powder |
| CN102151836A (en) * | 2010-11-30 | 2011-08-17 | 湖南金天铝业高科技有限公司 | Secondary crushing process and device of pulverized aluminum powder |
Non-Patent Citations (1)
| Title |
|---|
| 氮气雾化微细球形铝粉的生产工艺;常政刚;《硫磷设计与粉体工程》;20090228;第37-41页 * |
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