CN202367208U - Dual-layer non-restraint atomizing nozzle device for preparing metal and alloy powder - Google Patents
Dual-layer non-restraint atomizing nozzle device for preparing metal and alloy powder Download PDFInfo
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- CN202367208U CN202367208U CN2011204058925U CN201120405892U CN202367208U CN 202367208 U CN202367208 U CN 202367208U CN 2011204058925 U CN2011204058925 U CN 2011204058925U CN 201120405892 U CN201120405892 U CN 201120405892U CN 202367208 U CN202367208 U CN 202367208U
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- atomizer
- atomization nozzle
- atomizing nozzle
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Abstract
The utility model provides a dual-layer non-restraint atomizing nozzle device for preparing metal powder, which mainly comprises an upper-layer auxiliary atomizing nozzle, a lower-layer main atomizing nozzle, a catheter and a fixing bolt, wherein the auxiliary atomizing nozzle and the main auxiliary atomizing nozzle are arranged together through the fixing bolt, and the catheter is arranged on the upper end of the auxiliary atomizing nozzle. By using the atomizing nozzle, pressure of dielectric gas in a process of atomizing for producing powder can be increased, meanwhile the phenomena of bubbles, nodules and backwashing produced in the process of atomizing for producing the powder are eliminated, and the production efficiency of atomizing for producing the powder, the yield of the fine powder and the quality of the metal powder products are greatly improved.
Description
Technical field
The utility model relates to the preparing technical field of metal dust, particularly relates to gas atomization and prepares the technology of metal powder field.
Background technology
Traditional free fall style powder by atomization nozzle; When atomizing medium gas pressure intensity during greater than metal melting liquid static pressure, atomizing medium gas will upwards reflux along mozzle, produces the bubbling phenomenon; The atomizing medium gas that refluxes causes the molten solution body of the part metals reverse movement that makes progress; Metal melting liquid very easily is bonded between draft tube outlets and the atomizer gas outlet, forms dross, causes the powder by atomization process to interrupt until draft tube outlets is blocked; When dross forms; Spray pattern changes and causes the big drop of metal melting liquid to produce, and the metal dust granularity of atomizing preparation enlarges markedly, and has had a strong impact on the ordinary production of powder by atomization process and the product quality of atomized metal pow der.
Summary of the invention
The object of the invention is exactly in order to overcome the problems referred to above, and a kind of double-deck unrestricted formula atomizer device for preparing metal and alloy powder is provided.This atomizer can prevent under the situation of higher atomization gas pressure medium that atomizing medium gas and Metal Melting solution body are along the mozzle reverse backflow; Eliminate atomization process bubbling, dross and backwash phenomenon, improve production efficiency, fine powder recovery rate and the metal dust product quality of powder by atomization.
The purpose of the utility model realizes through following technical scheme:
A kind of double-deck unrestricted formula atomizer device for preparing metal and alloy powder; Comprise assisted atomization nozzle, main atomizer; Mozzle and set bolt; It is characterized in that: the assisted atomization nozzle is positioned at the top of main atomizing, and assisted atomization nozzle and main atomizer are installed together through set bolt.
A kind of double-deck unrestricted formula atomizer device for preparing metal and alloy powder; Comprise assisted atomization nozzle, main atomizer; Mozzle and set bolt; It is characterized in that: main atomizer and assisted atomization nozzle are formed by two parts, and adopt argon arc welding to seal welding, and the wall lower end of main atomizer and assisted atomization nozzle all has circumferential weld.
A kind of double-deck unrestricted formula atomizer device for preparing metal and alloy powder comprises assisted atomization nozzle, main atomizer, mozzle and set bolt; It is characterized in that: metal melting liquid from atomizer upper end catheter pour into, at first get into top assisted atomization nozzle, protective gas sprays into from assisted atomization nozzle passage; Circumferential weld ejection from assisted atomization nozzle downside; Under the effect of protective gas, metal melting liquid gets into the main atomizer of atomizer below, and atomizing medium gas sprays into from main atomizer passage; From the circumferential weld ejection of main atomizer below, the metal bath of atomizing medium gaseous exchange warp atomizes.Because the protective gas of top assisted atomization nozzle ejection has strengthened the resistance that metal melting liquid atomization process backwash drop rises; Prevented that the atomization process gas medium is along the sail against the current generation of the bubbling, dross and the backwash phenomenon that produce of mozzle; Thereby prolonged the service life of atomizer and mozzle, improved production efficiency, fine powder recovery rate and the metal dust product quality of powder by atomization.
Description of drawings
Fig. 1 is a kind of double-deck unrestricted formula atomizer device for preparing metal and alloy powder of the utility model embodiment
In the accompanying drawing: 1. mozzle; 2. assisted atomization nozzle; 3. assisted atomization nozzle passage; 4. set bolt; 5. main atomizer; 6. main atomizer passage; 7. assisted atomization nozzle circumferential weld; 8. main atomizer circumferential weld
The SEM shape appearance figure of Fig. 2 atomized metal pow der
The particle size distribution figure of Fig. 3 atomized metal pow der
The specific embodiment
Below in conjunction with accompanying drawing a kind of double-deck unrestricted formula atomizer device for preparing metal and alloy powder of the utility model embodiment is described in further detail.Fig. 1 is a kind of double-deck unrestricted formula atomizer device sketch map for preparing metal and alloy powder of the utility model embodiment.This atomizer mainly is made up of mozzle 1, assisted atomization nozzle 2, main atomizer 5, set bolt 4 in Fig. 1.Metal melting liquid is poured into from assisted atomization nozzle 2 upper end mozzles 1, at first gets into assisted atomization nozzle 2, and protective gas sprays into from assisted atomization nozzle passage 3; Assisted atomization nozzle circumferential weld 7 ejections from assisted atomization nozzle downside; Under the protective gas effect, metal melting liquid gets into main atomizer 5, and atomization gas sprays into from main atomizer passage 6; Main atomizer circumferential weld 8 ejections from main atomizer 6 downsides atomize to the metal melting liquid that flows down.Because the resistance that the protective gas that assisted atomization nozzle 2 sprays has risen when having strengthened the atomizing of metal melting liquid; Having prevented that atomization process gas from sailing against the current along mozzle produces the generation of bubbling, dross and backwash phenomenon; Thereby prolonged the service life of atomizer and mozzle, improved production efficiency, fine powder recovery rate and the metal dust product quality of powder by atomization.The SEM pattern of atomized metal pow der is as shown in Figure 2, and the size distribution of atomized powder is as shown in Figure 3.
Claims (2)
1. double-deck unrestricted formula atomizer device for preparing metal and alloy powder; Comprise main atomizer, assisted atomization nozzle; Mozzle and set bolt; It is characterized in that the assisted atomization nozzle is positioned at the top of main atomizer, main atomizer and assisted atomization nozzle are installed together through set bolt, and the wall lower end of main atomizer and assisted atomization nozzle all has circumferential weld.
2. a kind of double-deck unrestricted formula atomizer device for preparing metal and alloy powder according to claim 1; It is characterized in that metal melting liquid from atomizer upper end mozzle pour into, at first get into the assisted atomization nozzle, protective gas sprays into from assisted atomization nozzle passage; Circumferential weld ejection from assisted atomization nozzle downside; Under the protective gas effect, metal melting liquid gets into main atomizer, and atomization gas sprays into from main atomizer passage; Circumferential weld ejection from main atomizer downside atomizes to the metal melting liquid that flows down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204058925U CN202367208U (en) | 2011-10-22 | 2011-10-22 | Dual-layer non-restraint atomizing nozzle device for preparing metal and alloy powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204058925U CN202367208U (en) | 2011-10-22 | 2011-10-22 | Dual-layer non-restraint atomizing nozzle device for preparing metal and alloy powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202367208U true CN202367208U (en) | 2012-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204058925U Expired - Fee Related CN202367208U (en) | 2011-10-22 | 2011-10-22 | Dual-layer non-restraint atomizing nozzle device for preparing metal and alloy powder |
Country Status (1)
| Country | Link |
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| CN (1) | CN202367208U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104858442A (en) * | 2015-06-09 | 2015-08-26 | 湖南省冶金材料研究院 | Blocking-preventing nozzle device used for preparing metal powder through gas atomization method |
| CN106378461A (en) * | 2016-11-21 | 2017-02-08 | 华南理工大学 | Double-nozzle atomizing device and method for preparing 3D printing spherical metal powder |
| CN107598178A (en) * | 2017-09-15 | 2018-01-19 | 上海材料研究所 | Multistage free style aerosolization spray disk with gas self-loopa function |
-
2011
- 2011-10-22 CN CN2011204058925U patent/CN202367208U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104858442A (en) * | 2015-06-09 | 2015-08-26 | 湖南省冶金材料研究院 | Blocking-preventing nozzle device used for preparing metal powder through gas atomization method |
| CN106378461A (en) * | 2016-11-21 | 2017-02-08 | 华南理工大学 | Double-nozzle atomizing device and method for preparing 3D printing spherical metal powder |
| CN106378461B (en) * | 2016-11-21 | 2019-01-29 | 华南理工大学 | A kind of two-nozzle atomization device and method preparing 3D printing globular metallic powder |
| CN107598178A (en) * | 2017-09-15 | 2018-01-19 | 上海材料研究所 | Multistage free style aerosolization spray disk with gas self-loopa function |
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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 |
Granted publication date: 20120808 Termination date: 20151022 |
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| EXPY | Termination of patent right or utility model |