CN2597087Y - Nozzle for producing fine zinc powder by gas spraying method - Google Patents
Nozzle for producing fine zinc powder by gas spraying method Download PDFInfo
- Publication number
- CN2597087Y CN2597087Y CNU022513671U CN02251367U CN2597087Y CN 2597087 Y CN2597087 Y CN 2597087Y CN U022513671 U CNU022513671 U CN U022513671U CN 02251367 U CN02251367 U CN 02251367U CN 2597087 Y CN2597087 Y CN 2597087Y
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- Prior art keywords
- solar
- nozzle
- lunar halo
- zinc powder
- gas
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- Expired - Fee Related
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Abstract
The utility model discloses a nozzle which is used to manufacture fine zinc powder through gas atomization method and mainly includes a nozzle sleeve pipe, a heat transfer pipe, a quartz glass pipe, a first wind ring, a nozzle head and a threaded press cover, a second wind ring is arranged between the nozzle head and the first wind ring; a conical bulge end edge is arranged at the lower part of the tapered reference plane of the second wind ring. The utility model has the advantages of simple structure, high fine powder rate and so on and can be widely applied in the field of powder metallurgy.
Description
(1) technical field
The utility model relates to the nozzle that a kind of powder metallurgy industry is used to make fine metal powder, particularly relates to a kind of nozzle that is used for gas atomization manufactured zinc powder.
(2) background technology
Gas atomization is a common method of making zinc powder, be gas by high speed and high pressure as atomizing medium, impact and have the zinc liquid of certain overtemperature and make it to be separated into the zinc droplet, obtain zinc powder after the cooling fast.The nozzle of the gas atomization manufactured zinc powder of prior art, its structure mainly comprises: the union (screwed)bonnet (UB of nozzle casing, heat-transfer pipe, quartz glass tube, solar or lunar halo, shower nozzle and a solar or lunar halo.Wherein a solar or lunar halo is pressed on the shower nozzle, and the union (screwed)bonnet (UB of solar or lunar halo is pressed on solar or lunar halo, and the circumferential weld width range of shower nozzle and a solar or lunar halo is generally 1.0～1.8 millimeters.Such structure makes the mass flow of gas and zinc liquid smaller, and atomized zinc dust end granularity is thicker, and the fine powder rate is low.
(3) summary of the invention
The technical problems to be solved in the utility model, the nozzle that is used for the thin zinc powder of gas atomization manufactured that the mass flow that provides a kind of gas and zinc liquid is bigger, simple in structure, the fine powder rate is high.
The technical scheme that adopts is:
A kind of nozzle that is used for the thin zinc powder of gas atomization manufactured mainly comprises: nozzle casing, heat-transfer pipe, quartz glass tube, solar or lunar halo, shower nozzle and a union (screwed)bonnet (UB.Its main points are to be provided with No. two solar or lunar halo between shower nozzle and a solar or lunar halo, and are provided with taper projection seam in the taper datum level lower end of No. two solar or lunar halo, and taper projection seam makes the relative No. two solar or lunar halo fixed-site of solar or lunar halo No. one; Make the two keep identical concentricity.
Circumferential weld quantity on above-mentioned shower nozzle, solar or lunar halo and No. two solar or lunar halo has increased, and its circumferential weld width range is 0.3～0.9 millimeter.Described circumferential weld is a plurality of recessed joints that become circle distribution that process by set depth on the taper datum level of shower nozzle, a solar or lunar halo and No. two solar or lunar halo.
The utility model also can be used to make the zinc-containing alloy powder.
Design principle of the present utility model:
One of most important state-variable is the mass flow ratio of gas and zinc melt in the technology that adopts gas atomization manufactured zinc powder.Guaranteeing under the constant situation of gas pressure and melt quality flow, increase total sectional area and the gas flow rate of gas vent circumferential weld, also just increased gas mass flow, thereby increased the injection kinetic energy of gas, increased the relative kinetic energy of gas-liquid two-phase, under the certain situation of physical property of liquid, the fineness of the breakup of drop is determined by the relative kinetic energy of gas-liquid two-phase in the air-flow, relative kinetic energy is big more, and the fragmentation of drop is trickle more, and the fine powder rate is high more.
The utlity model has following advantage and beneficial effect:
1, the utility model has increased No. two solar or lunar halo between shower nozzle and a solar or lunar halo, impels the total sectional area of circumferential weld of the total sectional area ratio prior art nozzle of circumferential weld to want big.The circumferential weld width range of shower nozzle, a solar or lunar halo and No. two solar or lunar halo is 0.3～0.9 millimeter, under the constant situation of the circumferential weld degree of depth, the equivalent diameter of circumferential weld is little more many than the equivalent diameter of the circumferential weld of prior art nozzle, the certain gas of pressure enters nozzle from the gas access, and the circumferential weld of process shower nozzle, a solar or lunar halo and No. two solar or lunar halo penetrates at a high speed.Under the certain condition of other condition, the gas velocity that ejects through circumferential weld of the present utility model is bigger than the gas velocity that the circumferential weld through the prior art nozzle ejects; Gas mass flow and spray kinetic energy all than through the mass flow of the gas of prior art nozzle with to spray kinetic energy many greatly, it is more much higher than the fine powder rate of the zinc powder that adopts the prior art nozzle to make therefore to make zinc powder.With accounting for 95% of zinc powder total amount by the thin zinc powder of 200 purposes in the zinc powder of the utility model manufacturing; Account for 73% of zinc powder total amount by the thin zinc powder of 325 purposes, in the zinc powder that the nozzle of employing prior art is produced, account for 30～45% of zinc powder total amount by the thin zinc powder of 325 purposes, therefore improved more than 1.5 times than employing prior art nozzle by the thin zinc powder output capacity of 325 purposes.
2, there is taper projection seam No. two solar or lunar halo tapers of the utility model datum level lower end, and taper projection seam makes a solar or lunar halo be pressed in the fixed-site on the solar or lunar halo No. two, and makes a solar or lunar halo keep identical concentricity with No. two solar or lunar halo.Such structure realizes that easily union (screwed)bonnet (UB, a solar or lunar halo and No. two solar or lunar halo are concentric preferably with shower nozzle, has guaranteed the utlity model has good performance.
(4) description of drawings
Fig. 1 is a side of the present utility model sectional structure schematic diagram;
Fig. 2 is No. two solar or lunar halo side sectional structure schematic diagrames of the present utility model;
Fig. 3 is a positive plan structure schematic diagram of the present utility model;
Fig. 4 is the positive plan structure schematic diagrames of No. two solar or lunar halo of the present utility model;
Fig. 5 is the side sectional structure schematic diagram of prior art;
Fig. 6 is a solar or lunar halo side sectional structure schematic diagram of prior art;
(5) specific embodiment
A kind of nozzle that is used for the thin zinc powder of gas atomization manufactured, mainly comprise: the union (screwed)bonnet (UB 5 of nozzle casing 8, heat-transfer pipe 7, quartz glass tube 3, solar or lunar halo 1, shower nozzle 2 and a solar or lunar halo, between shower nozzle and a solar or lunar halo, be provided with No. two solar or lunar halo 4, and taper projection seam 9 is arranged in the lower end of the taper datum level of No. two solar or lunar halo 4, the effect of taper projection seam 9 is to make solar or lunar halo 1 fixed-site with respect to No. two solar or lunar halo 4, guarantees that the concentricity of two solar or lunar halo is identical.The certain gas of pressure 6 enters nozzle from the gas access, penetrates at a high speed through the circumferential weld of shower nozzle 2, a solar or lunar halo 1 and No. two solar or lunar halo 4.
The circumferential weld width of shower nozzle 2 is 0.9 millimeter; The circumferential weld width of No. two solar or lunar halo 4 is 0.7 millimeter; The circumferential weld width of a solar or lunar halo 1 is 0.5 millimeter.
With accounting for 95% of zinc powder total amount by the thin zinc powder of 200 purposes in the zinc powder of the utility model manufacturing; Account for 73% of zinc powder total amount by the thin zinc powder of 325 purposes.
Claims (4)
1, a kind of nozzle that is used for the thin zinc powder of gas atomization manufactured, mainly comprise the union (screwed)bonnet (UB (5) of nozzle casing (8), heat-transfer pipe (7), quartz glass tube (3), a solar or lunar halo (1), shower nozzle (2) and solar or lunar halo, it is characterized in that: be provided with No. two solar or lunar halo (4) between shower nozzle (2) and the solar or lunar halo (1).
2, a kind of nozzle that is used for the thin zinc powder of gas atomization manufactured according to claim 1 is characterized in that there is taper projection seam (9) lower end of the taper datum level of No. two solar or lunar halo (4).
3, a kind of nozzle that is used for the thin zinc powder of gas atomization manufactured according to claim 1 is characterized in that the circumferential weld width range on a described solar or lunar halo (1), No. two solar or lunar halo (4) and the shower nozzle (2) is 0.3～0.9 millimeter.
4, a kind of nozzle that is used for the thin zinc powder of gas atomization manufactured according to claim 1 and 2 is characterized in that the circumferential weld width on a described solar or lunar halo (1), No. two solar or lunar halo (4) and the shower nozzle (2) is respectively 0.5 millimeter; 0.7 millimeter; 0.9 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU022513671U CN2597087Y (en) | 2002-12-19 | 2002-12-19 | Nozzle for producing fine zinc powder by gas spraying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU022513671U CN2597087Y (en) | 2002-12-19 | 2002-12-19 | Nozzle for producing fine zinc powder by gas spraying method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2597087Y true CN2597087Y (en) | 2004-01-07 |
Family
ID=34149682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU022513671U Expired - Fee Related CN2597087Y (en) | 2002-12-19 | 2002-12-19 | Nozzle for producing fine zinc powder by gas spraying method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2597087Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102076925A (en) * | 2008-06-26 | 2011-05-25 | 钴碳化钨硬质合金公司 | Threaded nozzle for a cutter bit |
| CN118002791A (en) * | 2024-04-08 | 2024-05-10 | 福建德尔诺新材料科技有限公司 | Nozzle structure of gas atomization powder process equipment |
-
2002
- 2002-12-19 CN CNU022513671U patent/CN2597087Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102076925A (en) * | 2008-06-26 | 2011-05-25 | 钴碳化钨硬质合金公司 | Threaded nozzle for a cutter bit |
| CN118002791A (en) * | 2024-04-08 | 2024-05-10 | 福建德尔诺新材料科技有限公司 | Nozzle structure of gas atomization powder process equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |