CN204486788U - Prepare the gas atomization device of metal and alloy powder - Google Patents
Prepare the gas atomization device of metal and alloy powder Download PDFInfo
- Publication number
- CN204486788U CN204486788U CN201520067155.7U CN201520067155U CN204486788U CN 204486788 U CN204486788 U CN 204486788U CN 201520067155 U CN201520067155 U CN 201520067155U CN 204486788 U CN204486788 U CN 204486788U
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- CN
- China
- Prior art keywords
- air gun
- alloy powder
- atomisation tower
- atomization device
- gas atomization
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- 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.)
- Expired - Fee Related
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- 239000002184 metal Substances 0.000 title claims abstract description 32
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 28
- 239000000956 alloy Substances 0.000 title claims abstract description 28
- 239000000843 powder Substances 0.000 title claims abstract description 28
- 238000009689 gas atomisation Methods 0.000 title claims abstract description 20
- 238000000889 atomisation Methods 0.000 claims abstract description 44
- 239000002826 coolant Substances 0.000 claims abstract description 18
- 239000011261 inert gas Substances 0.000 claims abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000001301 oxygen Substances 0.000 claims abstract description 10
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 10
- 238000005507 spraying Methods 0.000 claims abstract description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000011819 refractory material Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000005587 bubbling Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000012798 spherical particle Substances 0.000 description 2
- 238000005275 alloying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002663 nebulization Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Nozzles (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The utility model relates to a kind of gas atomization device preparing metal and alloy powder, comprise the atomisation tower container storing cooling medium, described atomisation tower container top board overthe openings is provided with air gun assembly, described air gun assembly comprises bottom and has the bottom pour ladle crucible of leting slip a remark, described periphery of leting slip a remark is provided with the circumferential weld nozzle of air gun assembly, and described circumferential weld nozzle is also positioned at described overthe openings, the all sidewalls of described atomisation tower upper vessel portion are provided with and stretch into cooling medium and the first air inlet pipe spraying into inert gas, described all sidewalls are also provided with the escape pipe of drawing oxygen in atomisation tower container.The utility model effectively can prevent bubbling in atomization process and backwash phenomenon, and atomized powder regular shape, uniform particle sizes, oxygen content are low.
Description
Technical field
The utility model relates to the gas atomization device preparing metal and alloy powder.
Background technology
The metal or alloy liquid stream of melting is ground into fine drop by the high speed that gas atomization produces by atomising device nozzle, high pressure swirl air-flow instantaneously, and relying on cooling medium to make its quick cooled and solidified become solid granule, the atomizing particle sphericity prepared is high, oxygen content is low, size is controlled, have the advantages such as the institutional framework of rapid condensation.Existing atomising device, when preparing metal and alloy powder, easily produces bubbling and backwash phenomenon, large to the infringement of atomising device, greatly reduces the service life of atomising device, the metal prepared in addition and alloy powder particle diameter uneven, oxygen content is larger.
Utility model content
The utility model makes improvement for above-mentioned prior art Problems existing, and namely technical problem to be solved in the utility model is to provide a kind of long service life, the novel gas atomization device preparing metal and alloy powder that nebulization efficiency is high.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of gas atomization device preparing metal and alloy powder, comprise the atomisation tower container storing cooling medium, described atomisation tower container top board overthe openings is provided with air gun assembly, described air gun assembly comprises bottom and has the bottom pour ladle crucible of leting slip a remark, described periphery of leting slip a remark is provided with the circumferential weld nozzle of air gun assembly, and described circumferential weld nozzle is also positioned at described overthe openings, the all sidewalls of described atomisation tower upper vessel portion are provided with and stretch into cooling medium and the first air inlet pipe spraying into inert gas, described all sidewalls are also provided with the escape pipe of drawing oxygen in atomisation tower container.
Further, described air gun assembly also comprises air gun main body, described air gun main body has ring conical internal cavity, described air gun main body two side ends is symmetrically arranged with the second air inlet pipe be connected with ring conical internal cavity, be provided with the circumferential weld nozzle of connected ring conical internal cavity and atomisation tower container bottom described ring conical internal cavity, described in let slip a remark concordant with circumferential weld nozzle.
Further, the nozzle width of described circumferential weld nozzle is 1.6 ~ 1.8mm, and the internal diameter of described circumferential weld nozzle is 15 ~ 20mm, and described circumferential weld nozzle is tapered, and the angle between its inwall inclined-plane and ring conical internal cavity baseplane is 30 °; Described diameter of leting slip a remark is 3.6 ~ 4.1mm.
Further, the center line of all second air inlet pipe is all located along the same line.
Further, the expulsion pressure of described air gun main body is 3.0 ~ 3.4MPa.
Further, described air gun body top lateral wall and bottom pour ladle crucible lateral wall kissing combine harmoniously and match.
Further, described air gun main body adopts stainless steel material and carries out seal welding by argon arc welding and forms.
Further, described air gun assembly and atomisation tower container are that small―gap suture coordinates, and through seal with elastometic washer.
Further, the bottom of described atomisation tower container is tapered, and the conical lower portion of described atomisation tower container is provided with valve.
Further, described bottom pour ladle crucible is made up of the refractory material of low thermal conductivity.
Compared with prior art, the utility model has following beneficial effect: the utility model adopts funnel shaped bottom pour ladle crucible can effectively prevent atomization process gas medium and metal melting liquid to sail against the current along bottom pour ladle crucible the generation of the bubbling that causes and backwash phenomenon, extends the life-span of air gun assembly and bottom pour ladle crucible; The advantages such as atomized powder regular shape, uniform particle sizes, oxygen content be low can be realized by the Combination Design of high-voltage high-speed gas atomization, inert gas shielding; Atomized powder granularity can be made to reach a scope required by regulating the degree of superheat of motlten metal liquid, the aperture of bottom pour ladle crucible, the pressure and other parameters of working media; The employing of above-mentioned technology improves the product quality of the production efficiency of powder by atomization, fine powder recovery rate and metal dust.
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Accompanying drawing explanation
Fig. 1 is the organigram of the utility model embodiment.
Fig. 2 is the organigram of the utility model embodiment.
In figure: 1-atomisation tower container, 11-top board, 12-opening, 13-conical lower portion, 14-valve, 15-first air inlet pipe, 16-escape pipe, 2-air gun assembly, 21-bottom pour ladle crucible, 211-lets slip a remark, 212-lateral wall, 22-air gun main body, 221-circumferential weld nozzle, 222-ring conical internal cavity, 223-second air inlet pipe, 224-lateral wall, 3-cooling medium.
Detailed description of the invention
As shown in Figure 1 and 2, a kind of gas atomization device preparing metal and alloy powder, comprise the atomisation tower container 1 storing cooling medium 3, air gun assembly 2 is provided with above described atomisation tower container 1 top board 11 opening 12, described air gun assembly 2 comprise bottom have let slip a remark 211 bottom pour ladle crucible 21, described 211 peripheries of leting slip a remark are provided with the circumferential weld nozzle 221 of high pressure air rifle assembly 2, and described circumferential weld nozzle 221 is also positioned at above described opening 12, the all sidewalls in described atomisation tower container 1 top are provided with and stretch into cooling medium 3 and the first air inlet pipe 15 spraying into inert gas, described all sidewalls are also provided with the escape pipe 16 of drawing oxygen in atomisation tower container 1.When not passing into inert gas in atomisation tower container 1, atomisation tower container 1 internal upper part is air ambient, bottom is cooling medium 3 environment, constantly in atomisation tower container 1, pass into inert gas, constantly the oxygen of atomisation tower container 1 inside is discharged, keep atomisation tower container 1 top to be inert gas environment, bottom is cooling medium 3 environment.
In the utility model, described air gun assembly 2 also comprises air gun main body 22, described air gun main body 22 has ring conical internal cavity 222, described air gun main body 22 two side ends is symmetrically arranged with the second air inlet pipe 223 be connected with ring conical internal cavity 222, be provided with the circumferential weld nozzle 221 of connected ring conical internal cavity 222 and atomisation tower container 1 bottom described ring conical internal cavity 222, described in let slip a remark 211 concordant with circumferential weld nozzle 221.
In the utility model, the nozzle width of described circumferential weld nozzle 221 is 1.6 ~ 1.8mm, and the internal diameter of described circumferential weld nozzle 221 is 15 ~ 20mm, preferred 19mm, described circumferential weld nozzle 221 is tapered, and the angle between its inwall inclined-plane and ring conical internal cavity 222 baseplane is 30 °.
In the utility model, described in let slip a remark 211 diameter be 3.6 ~ 4.1mm.By the control to 211 sizes of leting slip a remark, atomizing medium spray angle, the particle size uniformity of powder and the systematicness of profile can better be controlled.
In the utility model, the center line of all second air inlet pipe 223 is all located along the same line.
In the utility model, the expulsion pressure of described air gun main body 22 is 3.0 ~ 3.4MPa, and what described second air inlet pipe 223 passed into is atomizing medium.
In the utility model, described air gun main body 22 top outer wall 224 combines harmoniously with bottom pour ladle crucible 21 lateral wall 212 kissing and matches.
In the utility model, described air gun main body 22 adopts stainless steel material and carries out seal welding by argon arc welding and forms.
In the utility model, described air gun assembly 2 with atomisation tower container 1 for small―gap suture coordinates, and through seal with elastometic washer.
In the utility model, the bottom of described atomisation tower container 1 is tapered, and the conical lower portion 13 of described atomisation tower container 1 is provided with valve 14, and described valve 14 is convenient to discharge the cooling water in atomisation tower container 1 and collection metal, alloying pellet.
In the utility model, described bottom pour ladle crucible 21 is in infundibulate, and described bottom pour ladle crucible 21 integrates insulation, diversion function.
In the utility model, described bottom pour ladle crucible 21 is made up of the refractory material of low thermal conductivity.
Concrete use procedure of the present utility model is as follows:
(1) pass into cooling medium 3, first in the described atomisation tower container 1 preparing the gas atomization device of metal and alloy powder, pass into a certain proportion of cooling medium 3, described atomisation tower container about 1 is divided into air ambient, cooling medium environment two parts;
(2) be vented, then the first air inlet pipe 15 is utilized constantly to pass into inert gas in cooling medium 3, by the oxygen contained in air ambient part, cooling medium environment in atomisation tower container 1 not cracked ends escape pipe 16 discharge, air ambient part is become inert gas environment;
(3) granulation, then metal or alloy melt liquid is poured into above bottom pour ladle crucible 21, atomizing medium sprays into from the second air inlet pipe 223 to the ring conical internal cavity 222 of air gun assembly 2 and sprays through circumferential weld nozzle 221, at metal or alloy melt liquid in the process of leting slip a remark 211 downward inflow atomisation tower containers 1, metal or alloy fused solution stream is atomized and is broken into metal or alloy drop tiny in a large number by atomizing medium instantaneously, tiny drop is in the flight course of inert gas environment part, spherical or spherical particle is condensed into rapidly under the quick cooling acting in conjunction of surface tension and atomization gas,
(4) cool, the cooling medium 3 that and then spherical the or spherical particle of metal or alloy falls into atomisation tower container 1 conical lower portion 13 cools, and obtains metal or alloy powder;
(5) collect, after cooling terminates, open valve 14 and collect all metal or alloy powder.
The foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (10)
1. prepare the gas atomization device of metal and alloy powder for one kind, it is characterized in that: the atomisation tower container comprising storing cooling medium, described atomisation tower container top board overthe openings is provided with air gun assembly, described air gun assembly comprises bottom and has the bottom pour ladle crucible of leting slip a remark, described periphery of leting slip a remark is provided with the circumferential weld nozzle of air gun assembly, and described circumferential weld nozzle is also positioned at described overthe openings, the all sidewalls of described atomisation tower upper vessel portion are provided with and stretch into cooling medium and the first air inlet pipe spraying into inert gas, described all sidewalls are also provided with the escape pipe of drawing oxygen in atomisation tower container.
2. a kind of gas atomization device preparing metal and alloy powder according to claim 1, it is characterized in that: described air gun assembly also comprises air gun main body, described air gun main body has ring conical internal cavity, described air gun main body two side ends is symmetrically arranged with the second air inlet pipe be connected with ring conical internal cavity, be provided with the circumferential weld nozzle of connected ring conical internal cavity and atomisation tower container bottom described ring conical internal cavity, described in let slip a remark concordant with circumferential weld nozzle.
3. a kind of gas atomization device preparing metal and alloy powder according to claim 2, it is characterized in that: the nozzle width of described circumferential weld nozzle is 1.6 ~ 1.8mm, the internal diameter of described circumferential weld nozzle is 15 ~ 20mm, described circumferential weld nozzle is tapered, and the angle between its inwall inclined-plane and ring conical internal cavity baseplane is 30 °; Described diameter of leting slip a remark is 3.6 ~ 4.1mm.
4. a kind of gas atomization device preparing metal and alloy powder according to claim 3, is characterized in that: the center line of two second air inlet pipe is all located along the same line.
5. a kind of gas atomization device preparing metal and alloy powder according to claim 2, is characterized in that: the expulsion pressure of described air gun main body is 3.0 ~ 3.4MPa.
6. a kind of gas atomization device preparing metal and alloy powder according to claim 2 or 5, is characterized in that: described air gun body top lateral wall and bottom pour ladle crucible lateral wall match.
7. a kind of gas atomization device preparing metal and alloy powder according to claim 6, is characterized in that: described air gun main body adopts stainless steel material and carries out seal welding by argon arc welding and forms.
8. a kind of gas atomization device preparing metal and alloy powder according to claim 1 and 2, is characterized in that: described air gun assembly and atomisation tower container are that small―gap suture coordinates, and through seal with elastometic washer.
9. a kind of gas atomization device preparing metal and alloy powder according to claim 1, it is characterized in that: the bottom of described atomisation tower container is tapered, and the conical lower portion of described atomisation tower container is provided with valve.
10. a kind of gas atomization device preparing metal and alloy powder according to claim 1, is characterized in that: described bottom pour ladle crucible is made up of the refractory material of low thermal conductivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520067155.7U CN204486788U (en) | 2015-01-30 | 2015-01-30 | Prepare the gas atomization device of metal and alloy powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520067155.7U CN204486788U (en) | 2015-01-30 | 2015-01-30 | Prepare the gas atomization device of metal and alloy powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204486788U true CN204486788U (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520067155.7U Expired - Fee Related CN204486788U (en) | 2015-01-30 | 2015-01-30 | Prepare the gas atomization device of metal and alloy powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204486788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550987A (en) * | 2015-01-30 | 2015-04-29 | 福州大学 | Gas atomization device for preparing metal and allow powder and powder preparation method of gas atomization device |
-
2015
- 2015-01-30 CN CN201520067155.7U patent/CN204486788U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550987A (en) * | 2015-01-30 | 2015-04-29 | 福州大学 | Gas atomization device for preparing metal and allow powder and powder preparation method of gas atomization device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 |