CN106270486B - A kind of preparation method of the bis- particle powders of Ni-Al - Google Patents
A kind of preparation method of the bis- particle powders of Ni-Al Download PDFInfo
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- CN106270486B CN106270486B CN201610761082.0A CN201610761082A CN106270486B CN 106270486 B CN106270486 B CN 106270486B CN 201610761082 A CN201610761082 A CN 201610761082A CN 106270486 B CN106270486 B CN 106270486B
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- 239000000843 powder Substances 0.000 title claims abstract description 124
- 239000002245 particle Substances 0.000 title claims abstract description 47
- 229910003310 Ni-Al Inorganic materials 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 238000001035 drying Methods 0.000 claims abstract description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 230000002706 hydrostatic effect Effects 0.000 claims description 4
- 239000000320 mechanical mixture Substances 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 9
- 239000007921 spray Substances 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000012216 screening Methods 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 229910000765 intermetallic Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910006728 Si—Ta Inorganic materials 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- KHYBPSFKEHXSLX-UHFFFAOYSA-N iminotitanium Chemical compound [Ti]=N KHYBPSFKEHXSLX-UHFFFAOYSA-N 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000009718 spray deposition Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- B22F1/0003—
-
- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/041—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by mechanical alloying, e.g. blending, milling
Landscapes
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
A diameter of 37 μm~53 μm of a kind of bis- particle powders of Ni Al of present invention offer, the Ni powder and the Al powder；The Ni powder is with the Al powder with mass ratio 7：1 mixing.The invention also discloses the preparation methods of the bis- particle powders of Ni Al, after screening by powder, weigh, drying, keeping the temperature, Ni powder with Al powder is mixed, surface counterdiffusion occurs, formed the double particle powders of the Ni-Al, unreacted Ni powder and Al powder are removed using screening.Raw material of the present invention is common, and equipment is simple, and industrial reproducibility is high, and particle size is easy to control after reaction, and the bis- particle powders of Ni Al provided by the invention have many advantages, such as that reaction is abundant in thermal spray process, and utilization rate is high.
Description
Technical field
The present invention relates to the preparation methods of a kind of double particle powders more particularly to a kind of bis- particle powders of Ni-Al.
Background technology
The exothermic reaction that metallic compound is formed between metal is widely used enhancing base materials-thermally sprayed coating binding force side
Method.Common method is by the mixed-powders such as Ni-Al, Ni-Ti, Si-Ta or silk material thermal spray deposition containing these powder
To the surface of target substrate.The reaction that intermetallic compound is formed between these metallic elements discharges a large amount of heat.Further
Improve the temperature of flight particle.Partial metallurgical key is formed between sprayed coating and matrix, enhances binding force between sprayed coating and matrix.For
Raising reaction efficiency, for forming the two of compound kinds of metallic elements is made into composite powder particle.It common are melting-mist
Change, Al cladding Ni and Ni packages Al.In the composite powder prepared with these methods, there are quite a few Ni and the Al reacted
Existence generation intermetallic compound, Ni and Al are not sufficiently reacted in thermal spray process, are directly reduced and are utilized exothermic reaction
To improve the efficiency of binding force.
Invention content
The technical problem to be solved in the present invention is to provide a kind of Ni-Al double grains that can be fully reacted in thermal spray process
Powder and the method for preparing the bis- particle powders of this Ni-Al.
The present invention is to solve above-mentioned technical problem by the following technical programs：
A kind of bis- particle powders of Ni-Al, including Ni powder and Al powder；
A diameter of 37 μm~53 μm of the Ni powder；
A diameter of 37 μm~53 μm of the Al powder；
The Ni powder and the direct mechanical mixture of Al powder occur surface counterdiffusion and form the bis- particle powders of Ni-Al.
The invention also discloses the preparation methods of the bis- particle powders of the Ni-Al, include the following steps：
1. pure spherical Ni powder is sieved, retain through 270 mesh without the Ni powder by 400 mesh；It obtains
Ni powder of the diameter of powder between 37 μm -53 μm；
2. pure spherical Al powder is sieved, retain through 270 mesh without the Al powder by 400 mesh；It obtains
Al powder of the diameter of powder between 37 μm -53 μm；
3. 2. Al powder that Ni powder and step that by a certain percentage 1. weighing step prepares prepare；
4. 3. Ni and Al powder that step is weighed, is dried in drying oven；Heat preservation is taken out after drying；
5. 4. Ni powder and Al powder that step prepares is quickly transferred in reaction vessel, make Ni powder and Al powder straight
Connect mixing；The reaction vessel is rotated around horizontal fixing axle；In container, the Ni powder particles are touched with the Al powder particles
It hits to form preliminary combination；Ni atoms and Al atoms rapidly diffuse into Ni-Al junctions, shape along respective powder particle surface respectively
Into the Ni-Al superficial layers with certain thickness and bond strength, the bis- particle powders of Ni-Al are formed；
6. with the sieve of 270 mesh, to being sieved by the powder of step 5.；Retain without the powder Jing Guo 270 mesh sieve
End, i.e. particle diameter are more than 53 μm of powder, obtain the bis- particle powders of Ni-Al；The pure Ni powder and Al of particle idol are not formed
Diameier is respectively less than 53 μm, can be screened away by the sieve of 270 mesh.
Preferably, the Ni powder and the mass ratio of the Al powder mechanical mixture are 7：1.
Preferably, the reaction vessel be hydrostatic column made of ferrous alloy, the bottom and top of the reaction vessel
Portion can open, and conveniently insert and take out powder.
Preferably, the diameter of the reaction vessel and height are than being 1:1~1:3.
Preferably, the horizontal fixing axle is made of ferrous alloy, and the horizontal fixing axle passes through the reaction vessel
Center, the reaction vessel and the angle of the horizontal fixing axle are 15 °~45 °.
Preferably, the rotary speed of the horizontal fixing axle is 10rpm~120rpm.
Preferably, the reaction vessel makes for stainless steel material；The horizontal fixing axle makes for stainless steel material.
Preferably, the step 4. for 200 DEG C dry 4 hours by middle drying condition；The heat-retaining condition is to be kept the temperature at 100 DEG C
0.5~2.0 hour.
Preferably, 5. the reaction temperature of middle Ni powder and Al powder is 50 DEG C~150 DEG C to the step；Reaction time is 2
~24 hours.
The advantage of the invention is that：The raw material powder for preparing the bis- particle powders of Ni-Al is easily prepared, particle size repeatability
Good, Preparation equipment is simple, and process is easily controllable, and industry repeatability is high, and it is easy that Ni particles and Al particles combine the particle size formed
In control, and the bis- particle powders of Ni-Al provided by the invention react fully in thermal spray process, and utilization rate is high.
Description of the drawings
Fig. 1 is the schematic diagram for preparing consersion unit of the bis- particle powders of Ni-Al of the embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with the drawings and specific embodiments,
The present invention is described in further detail.
As shown in Figure 1, the consersion unit of the present invention, including reaction vessel 1 and horizontal fixing axle 2.
The preparation method of the present invention is as follows：
1. pure spherical Ni powder is sieved, retain through 270 mesh without the Ni powder by 400 mesh；It obtains
Ni powder of the diameter of powder between 37 μm -53 μm；
2. pure spherical Al powder is sieved, retain through 270 mesh without the Al powder by 400 mesh；It obtains
Al powder of the diameter of powder between 37 μm -53 μm；
3. by 7：2. Al powder that 1. Ni powder and step that 1 weight ratio weighing step prepares prepares；
4. 3. Ni and Al powder that step is weighed, is dried in drying oven；And keep the temperature 0.5 hour at 100 DEG C；
5. 4. Ni powder and Al powder that step prepares is quickly transferred in the reaction vessel 1, make Ni powder and Al
Powder directly mixes；The reaction vessel 1 is rotated around the horizontal fixing axle 2, and the velocity of rotation of the horizontal fixing axle 2 is
10rpm；In the reaction vessel 1, the Ni powder particles collide to form preliminary combination with the Al powder particles；Ni atoms
Ni-Al junctions are rapidly diffused into along respective powder particle surface respectively with Al atoms, being formed has certain thickness and combination
The Ni-Al superficial layers of intensity, the bis- particle powders of Ni-Al are formed；
6. with the sieve of 270 mesh, to being sieved by the powder of step 5.；Retain without the powder Jing Guo 270 mesh sieve
End, i.e. particle diameter are more than 53 μm of powder, obtain the bis- particle powders of Ni-Al；The pure Ni powder and Al of particle idol are not formed
Diameier is respectively less than 53 μm, can be screened away by the sieve of 270 mesh.
The reaction vessel 1 and the horizontal fixing axle 2 are made of ferrous alloy, and preferred embodiment uses stainless steel
Into；The reaction vessel 1 is hydrostatic column, and bottom and top can open, and conveniently be placed and taken out powder；The reaction
The diameter and height of container 1 are than being 1:1~1:3；The horizontal fixing axle 2 pass through the reaction vessel 1 center, and with it is described
The angle of reaction vessel 1 is 15 °~45 °.
Above-mentioned steps 4. in preferred drying condition for 200 DEG C dry 4 hours.
Above-mentioned steps 5. in Ni powder can directly be mixed at room temperature with Al powder, preferable temperature be 50 DEG C -150 DEG C,
In a certain range, temperature is higher, and reaction speed is faster, while at 150 DEG C hereinafter, atom will not melt to form Agglomerate；Powder
The last mechanical mixture preferably reaction time is 2~24 hours.
Basic principle, main feature and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention do not limited by above embodiments and description, do not depart from the premise of spirit and scope of the invention
Under, various changes and improvements may be made to the invention, and these changes and improvements all fall within the protetion scope of the claimed invention.This hair
Bright claimed range is defined by the appending claims and its equivalent thereof.
Claims (8)
1. a kind of preparation method of the bis- particle powders of Ni-Al, it is characterised in that：Include the following steps：
1. pure spherical Ni powder is sieved, retain through 270 mesh without the Ni powder by 400 mesh；Obtain powder
Ni powder of the diameter between 37 μm -53 μm；
2. pure spherical Al powder is sieved, retain through 270 mesh without the Al powder by 400 mesh；Obtain powder
Al powder of the diameter between 37 μm -53 μm；
3. it is 7 by Ni powder and Al powder qualities ratio：2. Al that 1. Ni powder and step that 1 ratio weighing step prepares prepares
Powder；
4. 3. Ni and Al powder that step is weighed, is dried in drying oven, heat preservation is taken out after drying；
5. 4. Ni powder and Al powder that step prepares is quickly transferred in reaction vessel, make Ni powder directly mixed with Al powder
It closes；The reaction vessel is hydrostatic column, and the reaction vessel is rotated around the horizontal fixing axle of through its center, the reaction
Container and the angle of the horizontal fixing axle are 15 °~45 °；
6. with the sieve of 270 mesh, to being sieved by the powder of step 5.；Retain without the powder Jing Guo 270 mesh sieve, i.e.,
Particle diameter is more than 53 μm of powder, obtains the bis- particle powders of Ni-Al；The pure Ni powder and Al powder quilts of particle idol are not formed
It screens out.
2. a kind of preparation method of the bis- particle powders of Ni-Al according to claim 1, it is characterised in that：The reaction is held
Device is hydrostatic column made of ferrous alloy, and the bottom and top of the reaction vessel can open.
3. a kind of preparation method of the bis- particle powders of Ni-Al according to claim 2, it is characterised in that：The reaction is held
The diameter and height of device are than being 1:1~1:3.
4. a kind of preparation method of the bis- particle powders of Ni-Al according to claim 1, it is characterised in that：It is described horizontal solid
Dead axle is made of ferrous alloy.
5. a kind of preparation method of the bis- particle powders of Ni-Al according to claim 1, it is characterised in that：It is described horizontal solid
The rotary speed of dead axle is 10rpm~120rpm.
6. a kind of preparation method of the bis- particle powders of Ni-Al according to claim 1, it is characterised in that：The reaction is held
Device makes for stainless steel material；The horizontal fixing axle makes for stainless steel material.
7. a kind of preparation method of the bis- particle powders of Ni-Al according to claim 1, it is characterised in that：The step is 4.
Middle drying condition is dried 4 hours for 200 DEG C；The heat-retaining condition is to keep the temperature 0.5~2.0 hour at 100 DEG C.
8. a kind of preparation method of the bis- particle powders of Ni-Al according to claim 1, it is characterised in that：The step is 5.
Described in the mechanical mixture reaction temperature of Ni powder and the Al powder be 50 DEG C~150 DEG C；Reaction time is 2~24 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610761082.0A CN106270486B (en) | 2016-08-30 | 2016-08-30 | A kind of preparation method of the bis- particle powders of Ni-Al |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610761082.0A CN106270486B (en) | 2016-08-30 | 2016-08-30 | A kind of preparation method of the bis- particle powders of Ni-Al |
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| CN106270486A CN106270486A (en) | 2017-01-04 |
| CN106270486B true CN106270486B (en) | 2018-07-10 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1436623A (en) * | 2002-02-06 | 2003-08-20 | 北京矿冶研究总院 | Composite nickel-in-aluminum powder coated with ultramicro or nanometer aluminum powder |
| CN1745899A (en) * | 2004-08-04 | 2006-03-15 | 有限会社长尾机械装置 | Planetary ballmill |
| CN101648273A (en) * | 2009-09-08 | 2010-02-17 | 武汉理工大学 | Method for preparing zinc-nickel alloy powder and application thereof |
| CN101857925A (en) * | 2010-07-07 | 2010-10-13 | 哈尔滨工业大学 | Preparation method of ultrafine grained Ni-Al alloy |
| CN103160722A (en) * | 2013-03-08 | 2013-06-19 | 吉林大学 | Nickel aluminum intermetallic compound/diamond composite material and preparation method |
-
2016
- 2016-08-30 CN CN201610761082.0A patent/CN106270486B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1436623A (en) * | 2002-02-06 | 2003-08-20 | 北京矿冶研究总院 | Composite nickel-in-aluminum powder coated with ultramicro or nanometer aluminum powder |
| CN1745899A (en) * | 2004-08-04 | 2006-03-15 | 有限会社长尾机械装置 | Planetary ballmill |
| CN101648273A (en) * | 2009-09-08 | 2010-02-17 | 武汉理工大学 | Method for preparing zinc-nickel alloy powder and application thereof |
| CN101857925A (en) * | 2010-07-07 | 2010-10-13 | 哈尔滨工业大学 | Preparation method of ultrafine grained Ni-Al alloy |
| CN103160722A (en) * | 2013-03-08 | 2013-06-19 | 吉林大学 | Nickel aluminum intermetallic compound/diamond composite material and preparation method |
Non-Patent Citations (1)
| Title |
|---|
| Ni-Al混合粉喷涂层反应烧结结合强度的试验研究;邱长军等;《中国表面工程》;20000331(第01期);32-38 * |
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| CN106270486A (en) | 2017-01-04 |
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Denomination of invention: A preparation method of Ni Al dual particle powder Effective date of registration: 20231225 Granted publication date: 20180710 Pledgee: Anqing rural commercial bank Limited by Share Ltd. Pledgor: ANHUI CRIST NEW MATERIALS CO.,LTD. Registration number: Y2023980074438 |