CN106862567A - Injection shaping Novel atomizer - Google Patents
Injection shaping Novel atomizer Download PDFInfo
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- CN106862567A CN106862567A CN201510914921.3A CN201510914921A CN106862567A CN 106862567 A CN106862567 A CN 106862567A CN 201510914921 A CN201510914921 A CN 201510914921A CN 106862567 A CN106862567 A CN 106862567A
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- atomizer
- main
- atomization device
- assisted atomization
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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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
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Abstract
Injection shaping Novel atomizer system, for the fast rapid hardening of various high performance solid materials.New Double layer non-limited airflow atomizing device is mainly made up of main atomizer and the part of assisted atomization device two.Assisted atomization device is located at the top of main atomizer, assisted atomization device is fixedly installed togather by the support beam that side is fixed with main atomizer with buck plate, main atomizer and assisted atomization device can move up and down relative to support beam, and the wall lower end of assisted atomization device and main atomizer carries circumferential weld.The atomizer can eliminate the backwash phenomenon during metal atomization deposition formation, the air-flow sprayed using secondary air nozzle increases the resistance that the backwash drop produced when liquid stream is atomized rises, it is allowed to that aerodynamic atomization main burner lower surface generation adhesion can not be risen to, so as to extend the service life of aerodynamic atomization atomizer, the quality of workpiece after shaping is improved.
Description
Technical field
The present invention relates to one kind injection shaping Novel atomizer, it is particularly suited for the various high performance rapidly solidified materiales of exploitation.
Background technology
Spray deposition technology as a kind of emerging flash set technology, be widely used in development and develop various high performance rapidly solidified materiales, develop in recent years it is very fast, be also promote alloy development an effective research meanses ".By the development of decades, the technology is increasingly mature, just being marched toward the commercial Application stage by the research of laboratory research stage, " be integrated for melt atomization process and deposition process by jet deposition, directly forms rapidly solidified material blank or simple shape with high-compactness!The part product of rule, but the more complicated part of direct forming shape is just relatively difficult, and this rapid solidification blank can not reach 100% consistency, typically this rapid solidification blank will be carried out into secondary forming or densification.Current secondary forming or densifying method is mostly solid state formation processes, such as high temperature insostatic pressing (HIP), hot extrusion, rolling, precision forging, and solid state formation processes have some limitations.
Gas atomization is using high velocity air flow of liquid metal to be ground into droplet and deposit the process of solidification, therefore atomizer turns into the key technology of gas atomization, and the structure and performance of atomizer determine the performance and efficiency of atomized powder.Recent years, not only atomizer structure is updated, requirement for atomization also improves a lot " but because atomization process is complicated; so while begin to use having more than 100 years history till now from spray technique; the theoretical development of atomization is still very slow, go back the atomization mechanism of the fairly perfect corresponding atomizer of atomization theoretical description of neither one.
The present invention is redesigned and is sprayed shaping equipment record to atomizer, to improve the success rate of injection forming experiment, atomizing effect and forming efficiency is improved by the improvement to atomizer, finally realizes industrialized production.
The content of the invention
For common free style atomizer, when atomization gas pressure is more than fluid pressure, gas is sailed against the current along liquid conductance pipe, form bubbling phenomenon, cause fluid flow unstable or even cause the accident, therefore a kind of new Double layer non-limited airflow atomizing device of the present invention is used to improve this phenomenon, and increase atomization pressure improves atomizing effect.
New Double layer non-limited airflow atomizing device is mainly made up of main atomizer and the part of assisted atomization device two.Assisted atomization device is located at the top of main atomizer, assisted atomization device is fixedly installed togather by the support beam that side is fixed with main atomizer with buck plate, main atomizer and assisted atomization device can move up and down relative to support beam, and the wall lower end of assisted atomization device and main atomizer carries circumferential weld.
Suitable jet apex angle is the key of jet deposition operator designs' atomizer, and in unrestricted formula atomizer, jet apex angle is to block and nonclogging two critical conditions for 45 degree and 30 degree.When more than 45 degree, atomization terminates, and when less than 35 degree, jet easily occurs, and is not atomized even.Preferably, the cone-apex angle that this atomizer is used is 35 degree, and cone-apex angle is 0 degree.
Gas atomization atomizer is most of for annular concentric atomizer can be divided into two major classes:That is circular seam type and annular ring type.Preferably, using the structure design of circular seam type, assisted atomization device circumferential weld width is 0.3mm to the secondary air atomizer and main atomizer of this novel double-layer non-limited airflow atomizing device, and main atomizer circumferential weld width is 0.5mm.
Preferably, main atomizer and assisted atomization device are constituted by two parts, and being welded using hydrogen arc carries out sealing welding, and the circumferential weld of 0.3mm and 0.5mm is formed respectively in downside.
Preferably, main atomizer center diameter of axle external diameter and bottom center bore have certain slope, and 17.5 degree of cone angles are formed with central axis, and the cone angle that 35 degree are formed after assembling is atomizing angle.
Preferably, its upper inner diameter of the structure of the catheter of this atomizer is 14mm, is highly 40.20mm, and its outreach is 4mm after being assembled with assisted atomization device, and catheter lower end is that horizontal structure angle is 1800, and internal diameter is 4mm.
Preferably, larger negative pressure can be obtained when the pressure of assisted atomization device is larger, the influence of the main acceptor's atomizer pressure of pressure in nebulization region, when the pressure of main and auxiliary two atomizers is 1.0MPa, during 0.5MPa, larger negative pressure can be obtained and be not in the phenomenon of bulge, therefore as can be with operating pressure.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is atomizer structure schematic diagram, 1. molten metal；2. passage 1；3. assisted atomization device；4. main atomizer；5. circumferential weld；6. passage 2.
Fig. 2 is auxiliary atomizer superstructure figure.
Fig. 3 is auxiliary atomizer chart at the bottom of.
Fig. 4 is main atomizer superstructure figure.
Fig. 5 is main atomizer lower junction composition.
Fig. 6 is catheter structure figure.
Specific embodiment
Figure of description 1 is atomizer structure schematic diagram.The backwash phenomenon during metal atomization deposition formation can be eliminated by the atomizer, the air-flow sprayed using secondary air nozzle increases the resistance that the backwash drop produced when liquid stream is atomized rises, it is allowed to that aerodynamic atomization main burner lower surface generation adhesion can not be risen to, so as to extend the service life of aerodynamic atomization atomizer, the quality of workpiece after shaping is improved.Its specific embodiment is as follows：
Molten metal enters from atomizer top catheter, and certain Negative Pressure Difference is formed in drain pipe end by the cone angle or position that change catheter, is conducive to the generation of atomization.
Then protective gas enters from passage 1, and the circumferential weld from the downside of assisted atomization device sprays, the molten metal in the presence of gas shield
Into main atomizer.The pressure of main atomizer is bigger, and the pressure in range of atomization is bigger, and the region of pressure distribution is also wider.The negative pressure not influence of acceptor's atomizer pressure size substantially.
Speed when main and auxiliary atomizer pressure is respectively 1.0MPa, 0.3MPa in nebulization region is between 100m/s ~ 300m/s, maximal rate at main atomizer exit reaches 700m/s, closes on the nebulization region VELOCITY DISTRIBUTION of atomizer exit between 300m/s-500m/s.
Between 50m/s ~ 200m/s, maximal rate at main atomizer exit is 500m/s to speed when main and auxiliary atomizer pressure is respectively 0.5MPa, 0.3MPa in nebulization region, closes on the nebulization region VELOCITY DISTRIBUTION of atomizer exit between 200m/s ~ 350m/s.
When the pressure of assisted atomization device increases, the negative pressure of negative pressuren zone is changed significantly, and when the pressure of assisted atomization device is 0.5MPa, peak suction can reach 86KPa, illustrate that negative pressure is mainly influenceed by assisted atomization device, the influence of the main acceptor's atomizer of pressure of nebulization region.
Claims (7)
1. injection shaping Novel atomizer, is mainly made up of main atomizer and the part of assisted atomization device two;Its assisted atomization device is located at the top of main atomizer, and assisted atomization device is fixedly installed togather by the support beam that side is fixed with main atomizer with buck plate.
2. injection according to claim 1 shapes Novel atomizer, and its main atomizer and assisted atomization device can move up and down relative to support beam, and the wall lower end of assisted atomization device and main atomizer carries circumferential weld.
3. injection according to claim 1 shapes Novel atomizer, and the cone-apex angle a for using is 35 degree, and cone-apex angle b is 0 degree.
4. injection according to claim 2 shapes Novel atomizer, and, using the structure design of circular seam type, assisted atomization device circumferential weld width is 0.3mm for its secondary air atomizer and main atomizer, and main atomizer circumferential weld width is 0.5mm.
5. injection according to claim 3 shapes Novel atomizer, and its main atomizer and assisted atomization device are constituted by two parts, and being welded using hydrogen arc carries out sealing welding, and the circumferential weld of 0.3mm and 0.5mm is formed respectively in downside.
6. injection according to claim 3 shapes Novel atomizer, and its main atomizer center diameter of axle external diameter and bottom center bore have certain slope, and 17.5 degree of cone angles are formed with central axis, and the cone angle that 35 degree are formed after assembling is atomizing angle.
7. injection according to claim 1 shapes Novel atomizer, its upper inner diameter of the structure of the catheter of its atomizer is 14mm, is highly 40.20mm, and its outreach is 4mm after being assembled with assisted atomization device, catheter lower end is that horizontal structure angle is 1800, and internal diameter is 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510914921.3A CN106862567A (en) | 2015-12-13 | 2015-12-13 | Injection shaping Novel atomizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510914921.3A CN106862567A (en) | 2015-12-13 | 2015-12-13 | Injection shaping Novel atomizer |
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| Publication Number | Publication Date |
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| CN106862567A true CN106862567A (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510914921.3A Pending CN106862567A (en) | 2015-12-13 | 2015-12-13 | Injection shaping Novel atomizer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672937A (en) * | 2019-09-18 | 2020-01-10 | 北京农业智能装备技术研究中心 | Atomization efficiency evaluation method and device of electric atomizer |
| CN110919000A (en) * | 2019-11-26 | 2020-03-27 | 北京工业大学 | Plug-in pneumatic injection device capable of being quickly disassembled and assembled |
| CN117923577A (en) * | 2024-03-22 | 2024-04-26 | 广东雅迪环保设备有限公司 | Secondary evaporation concentration equipment to evaporation mother liquor of landfill leachate |
-
2015
- 2015-12-13 CN CN201510914921.3A patent/CN106862567A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672937A (en) * | 2019-09-18 | 2020-01-10 | 北京农业智能装备技术研究中心 | Atomization efficiency evaluation method and device of electric atomizer |
| CN110672937B (en) * | 2019-09-18 | 2021-08-03 | 北京农业智能装备技术研究中心 | Atomization efficiency evaluation method and device of electric atomizer |
| CN110919000A (en) * | 2019-11-26 | 2020-03-27 | 北京工业大学 | Plug-in pneumatic injection device capable of being quickly disassembled and assembled |
| CN117923577A (en) * | 2024-03-22 | 2024-04-26 | 广东雅迪环保设备有限公司 | Secondary evaporation concentration equipment to evaporation mother liquor of landfill leachate |
| CN117923577B (en) * | 2024-03-22 | 2024-06-07 | 广东雅迪环保设备有限公司 | Secondary evaporation concentration equipment to evaporation mother liquor of landfill leachate |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170620 |
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| WD01 | Invention patent application deemed withdrawn after publication |