CN111940749A - Metal powder material preparation device and method - Google Patents
Metal powder material preparation device and method Download PDFInfo
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- CN111940749A CN111940749A CN202010651928.1A CN202010651928A CN111940749A CN 111940749 A CN111940749 A CN 111940749A CN 202010651928 A CN202010651928 A CN 202010651928A CN 111940749 A CN111940749 A CN 111940749A
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- metal
- tank body
- water pipe
- rotating
- powder material
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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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/10—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying using centrifugal force
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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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
- B22F1/145—Chemical treatment, e.g. passivation or decarburisation
Abstract
The invention provides a device and a method for preparing a metal powder material, wherein the device comprises a tank body, a rotating motor and an annular water pipe, wherein a melting furnace is arranged at the top of the tank body, circulating water is filled at the bottom of the tank body, the rotating motor is fixedly connected to the inner wall of the tank body, a rotating shaft is arranged on the rotating motor, the upper end of the rotating shaft is connected with a rotating table, a rotating cylinder is fixedly arranged on the rotating table, sieve holes are distributed on the cylinder wall of the rotating cylinder, a circle of water discharging holes are formed in the lower edge of the annular water pipe, the annular water pipe is communicated with the upper end of the circulating water pipe, the lower end of. The invention has the beneficial effects that: the wall of the rotary cylinder of the device is fully distributed with sieve pores which can prevent the liquid drops of the metal liquid thrown out by the rotary cylinder from being too large, thereby improving the quality of the metal solid powder material; the annular water pipe can spray impact water flow downwards, and the impact water flow further breaks up metal liquid drops and enables the metal liquid drops to form metal powder quickly.
Description
Technical Field
The invention relates to the technical field of metal preparation materials, in particular to a device and a method for preparing a metal powder material.
Background
The metal powder material is easy to be rapidly heated to be molten into a state and solidified into solids with different shapes due to small granularity, so the metal powder material is widely applied to the field of 3D printing and coating, the preparation method of the metal powder material mainly adopts a plasma rotating electrode method, and the principle of preparing the metal powder by the plasma rotating electrode method is that a plasma electron gun emits high-energy electron beams to liquefy a rotating metal bar stock, and metal liquid is thrown out in a liquid drop form through centrifugal force, so that the metal powder is prepared; the existing device adopting the ion rotating electrode method has the problems that the plasma electron gun can only heat a very small amount of metal to be in a liquid state, so that the preparation efficiency of the metal particle powder material is greatly limited; meanwhile, in the preparation process of the metal powder, the liquid drops of the metal liquid need to be re-solidified into solid powder in the throwing process, so that the size of a device for preparing the metal powder material is usually larger, and the device and the method for preparing the metal powder material are provided for improving the preparation efficiency of the metal powder material and reducing the size of the device for preparing the metal powder material.
Disclosure of Invention
In order to solve the above problems, the present invention provides a metal powder material preparation apparatus, comprising a tank, a rotary motor and an annular water pipe, wherein a melting furnace is arranged at the top of the tank, circulating water is filled at the bottom of the tank, the melting furnace comprises a housing and a furnace cover arranged at the top of the housing, a melting funnel is arranged in the housing, a heating device is arranged outside the melting funnel, a metal solid is filled in the melting funnel, the rotary motor is fixedly connected to the inner wall of the tank through a fixing rod, a rotary shaft is arranged on the rotary motor, the rotary shaft is vertically arranged, the lower end of the rotary shaft is connected to the rotary motor, the upper end of the rotary shaft is connected to a rotary table, the rotary table is fixedly provided with a rotary cylinder, the upper end of the rotary cylinder is open, the rotary cylinder is positioned under the melting funnel, the cylinder wall of the, the lower edge of the annular water pipe is provided with a circle of drain holes, the annular water pipe is communicated with the upper end of a circulating water pipe, the lower end of the circulating water pipe extends into the circulating water, and the middle part of the circulating water pipe is provided with a circulating booster pump; the heating device heats and melts the metal solid in the funnel to be molten into metal liquid, the metal liquid flows into the liquid guide pipe and flows into the rotary cylinder, the rotary motor is used for driving the rotary cylinder to rotate, the metal liquid in the rotary cylinder is broken into liquid drops and thrown out through the sieve pores on the rotary cylinder, and the annular water pipe is used for downwards spraying impact water flow to further impact and break the liquid drops of the metal liquid, so that metal solid powder is formed through cooling.
Furthermore, the bottom of the tank body is funnel-shaped, the bottom of the tank body is open, and the bottom of the tank body is provided with an outlet valve.
Further, be fixed with a hot plate on the rotating electrical machines, the rotation axis passes the hot plate, be equipped with an tablet between rotatory section of thick bamboo and the warm table, be equipped with induction coil in the hot plate, induction coil is used for making the tablet generate heat to the heating of rotatory section of thick bamboo prevents that the metal liquid in the rotatory section of thick bamboo from solidifying.
Furthermore, a filter is arranged at the lower end of the circulating water pipe and used for filtering metal solid powder in the circulating water to prevent the metal solid powder from being sucked by the circulating booster pump.
Further, the circulating booster pump is fixed on the outer wall of the tank body, the upper end of the circulating water pipe penetrates through the side wall of the tank body and is communicated with the annular water pipe, and the lower end of the circulating water pipe penetrates through the side wall of the tank body and is connected with the filter.
Furthermore, a liquid guide pipe is arranged at the bottom of the melting funnel.
Further, the annular water pipe is connected to the inner wall of the tank body through a connecting rod.
The invention relates to a metal powder material preparation method based on the metal powder material preparation device, which comprises the following steps:
(1) opening a furnace cover of the melting furnace, adding the metal solid into a melting funnel, and closing the furnace cover;
(2) opening a heating device in the melting furnace, and starting a circulating booster pump and a rotating motor at the same time; the heating device melts and liquefies the metal solid in the melting funnel, the molten metal is liquefied and falls into the rotating cylinder, and the molten metal is liquefied and thrown out by the rotating cylinder; the thrown liquid drops of the metal liquid are impacted, broken and cooled by impact water flow discharged by an annular water pipe to form metal solid powder and fall into the bottom of the tank body;
(3) taking out the metal solid powder at the bottom of the tank body;
(4) cleaning, drying and screening the metal solid powder to obtain the metal solid powder with the granularity meeting the requirement;
(5) and (3) putting the cleaned, dried and screened metal solid powder into a reduction device, heating the metal solid powder to a high-temperature non-melting state, and introducing a reduction gas to finally obtain the required metal solid powder material.
The metal powder material preparation device has the beneficial effects that: the rotating table of the device is provided with the rotating cylinder, the wall of the rotating cylinder is fully distributed with sieve pores, and the sieve pores can prevent overlarge liquid drops of the metal liquid thrown out by the rotating cylinder, so that the granularity of the metal solid powder material can be reduced, and the quality of the metal solid powder material can be improved; the annular water pipe is arranged above the rotary cylinder, the annular water pipe can downwards spray annular impact water flow, the impact water flow further breaks metal liquid drops and enables the metal liquid drops to be quickly formed into metal powder, and therefore the radius of the tank body does not need to be too large, the size of the device can be reduced, and space is saved.
Drawings
FIG. 1 is a schematic view of a metal powder material production apparatus according to the present invention.
Fig. 2 is an enlarged view at a in fig. 1.
Fig. 3 is an enlarged view at B in fig. 1.
Fig. 4 is a schematic view of a connection structure of the circular water tube 4 of fig. 1.
In the figure: 1-tank, 11-outlet valve, 2-melting furnace, 21-shell, 22-furnace cover, 23-heating device, 24-melting funnel, 25-liquid guide pipe, 3-rotating motor, 31-fixed rod, 32-rotating shaft, 33-rotating table, 34-rotating drum, 35-heating plate, 36-induction plate, 4-annular water pipe, 41-circulating water pipe, 42-circulating booster pump, 43-filter, 44-connecting rod, and 45-impact water flow.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 and 2, the apparatus for preparing a metal powder material according to the present invention includes a tank 1, a melting furnace 2 is disposed on a top of the tank 1, the tank 1 is funnel-shaped and has a bottom provided with an outlet valve 11, the melting furnace 2 includes a housing 21 and a furnace cover 22 openably disposed on the top of the housing 21, a melting funnel 24 is disposed in the housing 21, a heating device 23 is disposed outside the melting funnel 24, a liquid guide pipe 25 is disposed on the bottom of the melting funnel 24, preferably, the heating device 23 is a high frequency heating coil, the high frequency heating coil is sleeved outside the melting funnel 24, the melting funnel 24 contains a metal solid, and the heating device 23 is configured to heat the metal in the melting funnel 24 to melt the metal into a metal liquid and to be discharged from the liquid guide pipe 25.
Referring to fig. 1 and 3, a rotating motor 3 is disposed in the tank 1, the rotating motor 3 is fixedly connected to the inner wall of the tank 1 through a fixing rod 31, a rotating shaft 32 is disposed on the rotating motor 3, the rotating shaft 32 is vertically disposed, the lower end of the rotating shaft is connected to the rotating motor 3, the upper end of the rotating shaft is connected to a circular rotating platform 33, a rotating cylinder 34 is fixedly disposed on the rotating platform 33, the rotating cylinder 34 is made of a high temperature resistant material, the upper end of the rotating cylinder 34 is open, the rotating cylinder 33 is located right below the liquid guide tube 25, the wall of the rotating cylinder 34 is covered with sieve holes, the molten metal liquid in the melting funnel 24 flows into the rotating cylinder 34 through the liquid guide tube 25, the rotating motor 3 drives the rotating cylinder 34 to rotate through the rotating shaft 32 and the rotating platform 33, so that the metal liquid in the rotating cylinder 34 passes through the sieve holes on the wall of the rotating cylinder 34 under the action of, the mesh is used to disperse the droplets of the metal liquid and prevent the droplets of the metal liquid thrown out by the rotary drum 34 from being excessively large.
Referring to fig. 1 and 4, an annular water pipe 4 is further disposed in the tank body 1, the annular water pipe 4 is connected to an inner wall of the tank body 1 through a connecting rod 44, the annular water pipe 4 is located above the rotary drum, preferably, a circulating water pipe 41 is fixed on an outer side of a side wall of the tank body 1, an upper end of the circulating water pipe 41 penetrates through the side wall of the tank body 1, extends into the tank body 1 and is communicated with the annular water pipe 4, a lower end of the circulating water pipe 41 penetrates through the side wall of the tank body 1 and extends to a lower portion inside the tank body 1, a circulating booster pump 42 is connected to a middle portion of the circulating water pipe 41, the circulating booster pump 42 is fixedly connected to the outer side of the side wall of the tank body 1, a periphery of a drain hole is disposed on a lower edge of the annular water pipe 4, circulating water is disposed at a bottom of the tank body 1, the circulating booster pump 42 is used for, an annular impact water flow 45 is formed, and the impact water flow 45 is used for further impacting and breaking the metal liquid drops thrown out by the rotary cylinder 34, so that metal solid powder is formed by cooling and falls to the bottom of the tank body 1.
Further, referring to fig. 1 and 3, a heating plate 35 is fixed on the rotating electrical machine 3, the rotating shaft 32 penetrates through the heating plate 35, an induction plate 36 is arranged between the rotating cylinder 34 and the heating platform 31, and an induction coil is arranged in the heating plate 25 and used for heating the induction plate 36, so as to heat the rotating cylinder 34 and prevent the metal liquid in the rotating cylinder 34 from solidifying. The lower end of the circulating water pipe 41 is connected with a filter 43, and the filter 43 is used for filtering metal solid powder in the circulating water and preventing the metal solid powder from being sucked by the circulating booster pump 42.
The invention relates to a metal powder material preparation method based on the metal powder material preparation device, which comprises the following steps:
(1) opening furnace lid 22 of melting furnace 2, adding metal solids to melting funnel 24, and closing furnace lid 22 (if the desired metal powder is an alloy powder, adding different metal solids to melting funnel 24 in proportion);
(2) turning on the heating device 23 in the melting furnace 2, and simultaneously starting the circulating booster pump 42, the rotating motor 3 and the induction coil in the heating plate 36; the heating device 23 melts and liquefies the metal solid in the melting hopper 24, and the molten metal is liquefied and falls into the rotating cylinder 34 and is thrown out by the rotating cylinder 34; the thrown liquid drops of the metal liquid are impacted, crushed and cooled by impact water flow 45 discharged by the annular water pipe 4 to form metal solid powder and fall into the bottom of the tank body 1;
(3) opening an outlet valve 11 at the bottom of the tank body 1, and taking out the metal solid powder;
(4) cleaning, drying and screening the taken metal solid powder to obtain the metal solid powder with the granularity meeting the requirement;
(5) and (3) putting the cleaned, dried and screened metal solid powder into a reduction device, heating to a high-temperature state without melting, and introducing a reducing gas (hydrogen or carbon monoxide) to finally obtain the required metal solid powder material.
The metal powder material preparation device has the beneficial effects that: the rotating platform 33 of the device is provided with a rotating cylinder 34, the wall of the rotating cylinder 34 is fully distributed with sieve holes, and the sieve holes can prevent the liquid drops of the metal liquid thrown out by the rotating cylinder 34 from being too large, thereby reducing the granularity of the metal solid powder material and improving the quality of the metal solid powder material; the annular water pipe 4 is arranged above the rotary cylinder 34, the annular water pipe 4 can downwards spray annular impact water flow 45, the impact water flow 45 further breaks metal liquid drops and enables the metal liquid drops to quickly form metal powder, the radius of the tank body 1 is not required to be too large, the size of the device can be reduced, and space is saved.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A metal powder material preparation facilities which characterized in that: the melting furnace comprises a tank body, a rotating motor and an annular water pipe, wherein the top of the tank body is provided with the melting furnace, the bottom of the tank body is provided with circulating water, the melting furnace comprises a shell and a furnace cover arranged at the top of the shell, the shell is internally provided with a melting funnel, the melting funnel is externally provided with a heating device, the melting funnel is internally provided with metal solids, the rotating motor is fixedly connected with the inner wall of the tank body through a fixed rod, the rotating motor is provided with a rotating shaft, the rotating shaft is vertically arranged, the lower end of the rotating shaft is connected with the rotating motor, the upper end of the rotating shaft is connected with a rotating table, the rotating table is fixedly provided with a rotating cylinder, the upper end of the rotating cylinder is opened, the rotating cylinder is positioned under the melting funnel, the wall of the rotating cylinder is fully distributed, the annular water pipe is communicated with the upper end of a circulating water pipe, the lower end of the circulating water pipe extends into the circulating water, and a circulating booster pump is arranged in the middle of the circulating water pipe; the heating device heats and melts the metal solid in the funnel to be molten into metal liquid, the metal liquid flows into the liquid guide pipe and flows into the rotary cylinder, the rotary motor is used for driving the rotary cylinder to rotate, the metal liquid in the rotary cylinder is broken into liquid drops and thrown out through the sieve pores on the rotary cylinder, and the annular water pipe is used for downwards spraying impact water flow to further impact and break the liquid drops of the metal liquid and cool the liquid drops to form metal solid powder.
2. A metal powder material producing apparatus as defined in claim 1, wherein: the bottom of the tank body is funnel-shaped, the bottom of the tank body is open, and the bottom of the tank body is provided with an outlet valve.
3. A metal powder material producing apparatus as defined in claim 1, wherein: be fixed with a hot plate on the rotating electrical machines, the rotation axis passes the hot plate, be equipped with an induction plate between rotatory section of thick bamboo and the warm table, be equipped with induction coil in the hot plate, induction coil is used for making the induction plate generate heat to the heating of rotatory section of thick bamboo prevents that the metal liquid in the rotatory section of thick bamboo from solidifying.
4. A metal powder material producing apparatus as defined in claim 1, wherein: the end part of the lower end of the circulating water pipe is provided with a filter, and the filter is used for filtering metal solid powder in the circulating water and preventing the metal solid powder from being sucked by the circulating booster pump.
5. The apparatus for preparing a metallic powder material as set forth in claim 4, wherein: the circulating booster pump is fixed on the outer wall of the tank body, the upper end of the circulating water pipe penetrates through the side wall of the tank body and is communicated with the annular water pipe, and the lower end of the circulating water pipe penetrates through the side wall of the tank body and is connected with the filter.
6. A metal powder material producing apparatus as defined in claim 1, wherein: the bottom of the melting funnel is provided with a liquid guide pipe.
7. A metal powder material producing apparatus as defined in claim 1, wherein: the annular water pipe is connected to the inner wall of the tank body through a connecting rod.
8. A metal powder material production method based on the metal powder material production apparatus according to any one of claims 1 to 7, characterized in that: the method comprises the following steps:
(1) opening a furnace cover of the melting furnace, adding the metal solid into a melting funnel, and closing the furnace cover;
(2) opening a heating device in the melting furnace, and starting a circulating booster pump and a rotating motor at the same time; the heating device melts and liquefies the metal solid in the melting funnel, the molten metal is liquefied and falls into the rotating cylinder, and the molten metal is liquefied and thrown out by the rotating cylinder; the thrown liquid drops of the metal liquid are impacted, broken and cooled by impact water flow discharged by an annular water pipe to form metal solid powder and fall into the bottom of the tank body;
(3) taking out the metal solid powder at the bottom of the tank body;
(4) cleaning, drying and screening the metal solid powder to obtain the metal solid powder with the granularity meeting the requirement;
(5) and (3) putting the cleaned, dried and screened metal solid powder into a reduction device, heating the metal solid powder to a high-temperature non-melting state, and introducing a reduction gas to finally obtain the required metal solid powder material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010651928.1A CN111940749A (en) | 2020-07-08 | 2020-07-08 | Metal powder material preparation device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010651928.1A CN111940749A (en) | 2020-07-08 | 2020-07-08 | Metal powder material preparation device and method |
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| CN111940749A true CN111940749A (en) | 2020-11-17 |
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| CN202010651928.1A Pending CN111940749A (en) | 2020-07-08 | 2020-07-08 | Metal powder material preparation device and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113333767A (en) * | 2021-04-30 | 2021-09-03 | 深圳航天科创实业有限公司 | TC4 spherical powder and preparation method and application thereof |
| CN114603149A (en) * | 2022-05-13 | 2022-06-10 | 成都大学 | Alloy powder processing is with centrifugation preparation facilities |
| CN115971509A (en) * | 2023-01-13 | 2023-04-18 | 扬州汇峰新材料有限公司 | Preparation method of superfine metal powder metallurgy material |
-
2020
- 2020-07-08 CN CN202010651928.1A patent/CN111940749A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113333767A (en) * | 2021-04-30 | 2021-09-03 | 深圳航天科创实业有限公司 | TC4 spherical powder and preparation method and application thereof |
| CN114603149A (en) * | 2022-05-13 | 2022-06-10 | 成都大学 | Alloy powder processing is with centrifugation preparation facilities |
| CN115971509A (en) * | 2023-01-13 | 2023-04-18 | 扬州汇峰新材料有限公司 | Preparation method of superfine metal powder metallurgy material |
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