CN220295850U - Plasma atomizing device - Google Patents
Plasma atomizing device Download PDFInfo
- Publication number
- CN220295850U CN220295850U CN202321656763.2U CN202321656763U CN220295850U CN 220295850 U CN220295850 U CN 220295850U CN 202321656763 U CN202321656763 U CN 202321656763U CN 220295850 U CN220295850 U CN 220295850U
- Authority
- CN
- China
- Prior art keywords
- plasma
- atomizer
- plasma jet
- jet generator
- feeder
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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.)
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- 239000000463 material Substances 0.000 claims abstract description 17
- 238000000889 atomisation Methods 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 230000002035 prolonged effect Effects 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 15
- 239000002184 metal Substances 0.000 abstract description 15
- 239000000843 powder Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000002360 preparation method Methods 0.000 abstract description 6
- 210000002381 plasma Anatomy 0.000 description 35
- 239000007769 metal material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009689 gas atomisation Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Abstract
The utility model relates to the technical field of metal powder preparation, in particular to a plasma atomization device, which comprises an atomizer, wherein the top of the atomizer is fixedly connected with a feeder, a material guide pipe is arranged in the feeder, the bottom of the material guide pipe extends into the atomizer, a heating resistance wire is arranged in the side wall of the material guide pipe, a plasma jet generator set is arranged in the atomizer, the plasma jet generator set comprises a plurality of plasma jet generators, a plurality of mounting cylinders are obliquely arranged in the atomizer, and the plasma jet generators are mounted in the mounting cylinders; according to the utility model, the metal wire bundle is preheated by the heating resistor wire, so that the metal wire bundle is in a molten or partially molten state, the atomization effect of the ion jet generator is greatly released under the assistance of preheating, the preparation effect of metal powder is ensured, and meanwhile, the feeding speed can be increased to improve the production efficiency.
Description
Technical Field
The utility model relates to the technical field of metal powder preparation, in particular to a plasma atomization device.
Background
With the rapid development of additive manufacturing techniques (also known as 3D printing), metal Injection Molding (MIM), thermal spraying, etc., there is an increasing market demand for metal powders, particularly high quality spherical metal powders. The types of metal powders required in the market include titanium, nickel, molybdenum, cobalt, copper, iron, aluminum, stainless steel, and other metals and their alloy powders. At present, main methods for producing metal powder by domestic enterprises include vacuum gas atomization (VIGA), electrode induction melting gas atomization (EIGA), plasma Rotary Electrode (PREP) and Plasma Atomization (PA). The production efficiency of the gas atomization method is high, but the particle size distribution range of the prepared powder product is wide, and the sphericity is poor; the powder product prepared by the plasma rotary electrode atomization method has high sphericity and smooth surface, but has larger average particle diameter and low fine powder yield.
The plasma atomization method utilizes the heat energy of high-temperature high-speed plasma jet to melt a metal material, then utilizes the mechanical energy of the jet to break up and atomize the molten metal, and finally condenses into spherical particles under the action of surface tension in the dropping process of atomized liquid drops. The produced powder has the advantages of concentrated particle size distribution, good fluidity, high purity and the like. The plasma atomization method has lower energy efficiency, a large amount of heat is required for melting the metal material, the contact time of the material and the plasma jet is extremely short, the heat energy of the plasma jet cannot be fully used for heating the material, and the feeding speed needs to be reduced to prolong the contact time of the material and the plasma jet, so that the production efficiency is lower.
Disclosure of Invention
The utility model aims to provide a plasma atomization device which can improve the feeding speed to improve the production efficiency while ensuring the preparation effect of metal powder.
In order to achieve the above object, the technical scheme of the present utility model is as follows:
the utility model provides a plasma atomizing device, includes the atomizer, the top fixedly connected with feeder of atomizer, be provided with the passage in the feeder, the bottom of passage extends extremely in the atomizer, be provided with heating resistance wire in the lateral wall of passage, be provided with plasma jet generator group in the atomizer, plasma jet generator group includes a plurality of plasma jet generator, the slope is provided with a plurality of mounting cylinders in the atomizer, and the plasma jet generator is installed in the mounting cylinder.
Further, the plasmas sprayed by the plurality of plasma jet generators are converged at the center of the lower end of the material guiding pipe to form a plasma atomization focus.
Further, the plasma jet generator sets are provided with a plurality of groups, and each group of the plasma jet generator sets are arranged at intervals from top to bottom.
Further, a baffle plate is arranged between each two groups of plasma jet generator groups, and the baffle plate is fixedly connected to the inner side wall of the atomizer.
Further, a group of guide rollers are rotatably arranged in the feeder, the guide rollers are arranged above the guide pipe, and a driving motor for driving the guide rollers to rotate is arranged on the feeder.
The beneficial effects of the utility model are as follows:
during processing, the wire harness enters the material guide pipe, and is preheated through the heating resistor wire, so that the wire harness is in a molten or partially molten state, and under the assistance of preheating, the atomization effect of the ion body jet generator is greatly released, so that the feeding speed can be increased while the preparation effect of metal powder is ensured, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is an enlarged schematic view at a in fig. 1.
Reference numerals: an atomizer 1; a feeder 2; a material guiding pipe 3; heating the resistance wire 4; a plasma jet generator 5; a mounting cylinder 6; a baffle 7; and a material guiding roller 8.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 and 2, a plasma atomizing device comprises an atomizer 1, wherein the top of the atomizer 1 is fixedly connected with a feeder 2, a material guide pipe 3 is arranged in the feeder 2, the bottom of the material guide pipe 3 extends to the inside of the atomizer 1, a heating resistance wire 4 is arranged in the side wall of the material guide pipe 3, a plasma jet generator set is arranged in the atomizer 1 and comprises a plurality of plasma jet generators 5, a plurality of mounting cylinders 6 are obliquely arranged in the atomizer 1, and the plasma jet generators 5 are mounted in the mounting cylinders 6.
The plasmas sprayed by the plasma jet generators 5 are converged at the center of the lower end of the material guiding pipe 3 to form a plasma atomization focus.
The plasma jet generator sets are provided with a plurality of groups, and each group of the plasma jet generator sets are arranged at intervals from top to bottom.
A baffle plate 7 is arranged between each two groups of plasma jet generator groups, and the baffle plate 7 is fixedly connected to the inner side wall of the atomizer 1.
A group of guide rollers 8 are rotatably arranged in the feeder 2, the guide rollers 8 are arranged above the guide pipe 3, and a driving motor for driving the guide rollers 8 to rotate is arranged on the feeder 2.
Working principle:
during processing, the wire harness is conveyed into the material guide pipe 3 through the material guide roller 8, the wire harness is preheated through the heating resistor wire 4, the wire harness is enabled to be in a molten or partially molten state, under the assistance of preheating, the atomization effect of the ion body jet flow generator 5 is greatly released, the metal material is atomized for multiple times through the plurality of groups of ion body jet flow generators 5, the contact time of the metal material and the plasma jet flow is prolonged, the preparation effect of the metal powder is ensured, and meanwhile, the feeding speed is increased so as to improve the production efficiency.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (5)
1. A plasma atomizing device, characterized in that: including atomizer (1), the top fixedly connected with feeder (2) of atomizer (1), be provided with in feeder (2) passage (3), the bottom of passage (3) is prolonged extremely in atomizer (1), be provided with heating resistor wire (4) in the lateral wall of passage (3), be provided with plasma jet generator group in atomizer (1), plasma jet generator group includes a plurality of plasma jet generator (5), the slope is provided with a plurality of mounting cylinder (6) in atomizer (1), and plasma jet generator (5) are installed in mounting cylinder (6).
2. The plasma atomizing apparatus according to claim 1, wherein: plasma sprayed by the plurality of plasma jet generators (5) is converged at the center of the lower end of the material guiding pipe (3) to form a plasma atomization focus.
3. The plasma atomizing apparatus according to claim 2, wherein: the plasma jet generator sets are provided with a plurality of groups, and each group of the plasma jet generator sets are arranged at intervals from top to bottom.
4. A plasma atomizing apparatus according to claim 3, wherein: a baffle (7) is arranged between each two groups of plasma jet generators, and the baffle (7) is fixedly connected to the inner side wall of the atomizer (1).
5. The plasma atomizing apparatus according to claim 1, wherein: a group of guide rollers (8) are rotatably arranged in the feeder (2), the guide rollers (8) are arranged above the guide pipe (3), and a driving motor for driving the guide rollers (8) to rotate is arranged on the feeder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321656763.2U CN220295850U (en) | 2023-06-28 | 2023-06-28 | Plasma atomizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321656763.2U CN220295850U (en) | 2023-06-28 | 2023-06-28 | Plasma atomizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220295850U true CN220295850U (en) | 2024-01-05 |
Family
ID=89345800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321656763.2U Active CN220295850U (en) | 2023-06-28 | 2023-06-28 | Plasma atomizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220295850U (en) |
-
2023
- 2023-06-28 CN CN202321656763.2U patent/CN220295850U/en active Active
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| GR01 | Patent grant |