CN113477930A - Granulating method and equipment for high-temperature atomized metal alloy - Google Patents
Granulating method and equipment for high-temperature atomized metal alloy Download PDFInfo
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- CN113477930A CN113477930A CN202110854457.9A CN202110854457A CN113477930A CN 113477930 A CN113477930 A CN 113477930A CN 202110854457 A CN202110854457 A CN 202110854457A CN 113477930 A CN113477930 A CN 113477930A
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- 229910001092 metal group alloy Inorganic materials 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 66
- 239000002184 metal Substances 0.000 claims abstract description 41
- 229910052751 metal Inorganic materials 0.000 claims abstract description 41
- 238000000889 atomisation Methods 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 28
- 238000001816 cooling Methods 0.000 claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 18
- 238000005469 granulation Methods 0.000 claims abstract description 16
- 230000003179 granulation Effects 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000002245 particle Substances 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 3
- 238000011160 research Methods 0.000 abstract description 6
- 150000002739 metals Chemical class 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 229910001338 liquidmetal Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
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- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
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Classifications
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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
- B22F9/082—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 atomising using a fluid
-
- 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
- B22F9/082—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 atomising using a fluid
- B22F2009/086—Cooling after atomisation
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- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The invention discloses a granulation method and equipment for high-temperature atomized metal alloy, and relates to the technical field of atomized granulation equipment, which comprises an ultrasonic vibration unit, an atomization chamber unit, a material heating unit, a control unit and a material receiving unit, wherein the ultrasonic vibration unit is arranged at the center inside the atomization chamber unit, the material heating unit is positioned outside the atomization chamber unit and is configured to transmit molten metal into liquid state to the ultrasonic vibration unit through a pipeline, a cooling unit is also arranged in the atomization chamber unit and is used for cooling metal suspended particles atomized by the ultrasonic vibration unit, and the atomized metal molecular particles cooled by the cooling unit are prepared into powder which falls into the material receiving unit for collection. Each control part is modularized and can be freely selected, and greater possibility is provided for the research of metal ultrasonic atomization.
Description
Technical Field
The invention belongs to the technical field of atomization granulation equipment, and particularly relates to a granulation method and equipment for high-temperature atomization of metal alloy.
Background
The atomization granulation is a granulation process in which a raw material liquid, which may be a solution, an emulsion or a suspension, or a melt or a paste, is dispersed into droplets by an atomizer and the droplets are directly contacted with hot air to obtain a powder-like product. Currently, ultrasonic atomization equipment is widely applied to research institutes and experiments. Most of ultrasonic atomization equipment in the prior art carries out ultrasonic atomization on liquid in a laboratory, and because metals are mostly in a solid state and can be in a liquid state only in a high-temperature molten state, the existing equipment can not meet the atomization treatment of the metals, and therefore, a granulation method and equipment for high-temperature atomized metal alloy are provided.
Disclosure of Invention
In view of the shortcomings of the prior art, the present invention provides a granulation method for high temperature atomization of metal alloy and an apparatus thereof, so as to solve the problems in the background art.
The purpose of the invention can be realized by the following technical scheme: a granulation method of high-temperature atomized metal alloy comprises the following steps: putting a certain amount of metal into a heating cylinder, heating the metal by a heating unit to enable the metal to be in a molten state, slowly dripping the molten metal into a crucible which vibrates according to a set frequency, atomizing the molten metal by high-frequency vibration to enable the molten metal to suspend in the air in a molecular form, cooling the atomized suspended liquid molecules, solidifying the atomized suspended liquid molecules to be in a powder form, scattering the powder, and collecting the powder in a unit to obtain the metal powder.
As a further scheme of the invention, the heating mode of the heating unit is resistance wire heating or induction heating or electric arc heating.
As a further aspect of the invention, the frequency range of the vibration of the crucible is 1KHZ-2.4 MHZ.
The equipment for the high-temperature atomization metal alloy granulation method comprises an ultrasonic vibration unit, an atomization chamber unit, a material heating unit, a control unit and a material receiving unit, wherein the ultrasonic vibration unit is arranged at the center inside the atomization chamber unit, the material heating unit is located outside the atomization chamber unit and is configured to melt metal into liquid metal and transmit the liquid metal to the ultrasonic vibration unit through a pipeline, a cooling unit is further arranged in the atomization chamber unit and is used for cooling metal suspended particles atomized by the ultrasonic vibration unit, the atomized metal molecular particles cooled by the cooling unit are made into powder and fall into the material receiving unit for collection, and the control unit is used for controlling working parameters of the ultrasonic vibration unit and the material heating unit.
As a further scheme of the invention, the ultrasonic vibration unit comprises a tray and an ultrasonic vibration platform, the ultrasonic vibration platform is arranged below the tray, the bottom end of the ultrasonic vibration platform is fixedly connected with a fixed seat, the bottom end of the fixed seat is fixedly connected with an output shaft of a motor, and an elastic part is arranged between the tray and the fixed seat.
As a further scheme of the invention, the elastic part comprises a spring, the tray is connected with the fixed seat in a sliding manner, the spring is arranged between the tray and the fixed seat, a plurality of groups of ejector rods are arranged between the tray and the ultrasonic vibration platform, the bottom ends of the ejector rods are fixedly connected with the ultrasonic vibration platform, and the top ends of the ejector rods are wrapped by rubber sleeves.
As a further scheme of the invention, the material heating unit comprises a heating cylinder and a heating block, the heating block is wrapped on the outer circumference side of the heating cylinder, a discharge port is formed in the bottom end of the heating cylinder, a feeding pipe is fixedly connected to the discharge port, the other end of the feeding pipe extends to the upper side of the ultrasonic vibration unit, and a feeding control mechanism is further arranged in the heating cylinder.
As a further scheme of the invention, the feeding control mechanism comprises a control rod, the bottom end of the control rod is inserted into a discharge port of the heating cylinder in a conical shape, and the control rod is connected with the heating cylinder in a sliding manner and slides along the vertical direction.
As a further scheme of the invention, the material receiving unit comprises a collecting cover, the collecting cover is arranged above the material heating unit and is in a bell mouth shape, a plurality of groups of partition plates are arranged in the collecting cover in an axially staggered mode, and the collecting cover is arranged in an inclined mode.
As a further scheme of the invention, an air pipe is connected in the inner cavity of the collecting cover, one end of the air pipe is inserted into the collecting cover, and the other end of the collecting cover is connected with the cooling unit.
The invention has the beneficial effects that: the method provides a set of production equipment for forming powder by metal ultrasonic atomization for the first time, and fills the blank of domestic research work;
the ultrasonic vibration unit can rotate all the time, so that the metal liquid can be uniformly spread and is not easy to be caked. The ultrasonic atomization of a small amount of samples can be realized without rotating;
the ultrasonic atomization equipment has small volume, can be placed in a glove box for operation, and can reduce the oxidation of metal materials in the air;
the ultrasonic atomization device has the advantages of small structure, light weight and accurately controlled functions in all aspects, is particularly suitable for researches on metal crystals in research institutes and colleges, adopts modularization in each control part, can be freely selected, and provides higher possibility for the researches on metal ultrasonic atomization.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1
In the figure: an atomizing chamber-1, a tray-2, an ultrasonic vibration platform-3, an air pipe-4, a cooling pump-5, a heating cylinder-6, a heating block-7, a control rod-8, a feeding pipe-9, a fixed seat-10, a motor-11, a spring-12, a collecting cover-13, a partition plate-14, a push rod-31 and an end cover-61.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A granulation method of high-temperature atomized metal alloy comprises the following steps: putting a certain amount of metal into a heating cylinder, heating the metal by a heating unit to enable the metal to be in a molten state, slowly dripping the molten metal into a crucible which vibrates according to a set frequency, atomizing the molten metal by high-frequency vibration to enable the molten metal to suspend in the air in a molecular form, cooling the atomized suspended liquid molecules, solidifying the atomized suspended liquid molecules to be in a powder form, scattering the powder, and collecting the powder in a unit to obtain the metal powder. The heating mode of the heating unit is resistance wire heating or induction heating or electric arc heating. The frequency range of the vibration of the crucible is 1KHZ-2.4 MHZ.
Referring to fig. 1 to 2, in an embodiment of the present invention, a granulation apparatus for high-temperature atomization of a metal alloy includes an ultrasonic vibration unit, an atomization chamber unit, a material heating unit, a control unit, and a material receiving unit, where the ultrasonic vibration unit is disposed at a center inside the atomization chamber unit, the material heating unit is located outside the atomization chamber unit and configured to transmit a molten metal in a liquid state to the ultrasonic vibration unit through a pipeline, the atomization chamber unit is further provided with a cooling unit, the cooling unit is configured to cool suspended metal particles atomized by the ultrasonic vibration unit, the atomized metal particles cooled by the cooling unit are made into powder and fall into the material receiving unit for collection, and the control unit is configured to control working parameters of the ultrasonic vibration unit and the material heating unit. The atomization chamber comprises a vacuum box 1, and can be made into a stainless steel chamber or a quartz chamber. Can realize high vacuum and atmosphere protection, specific cooling unit includes tuber pipe 4 and cooling pump 5, and 5 fixed mounting of cooling pump are on the top of vacuum chamber 1, and 4 one ends of tuber pipe and 5 intercommunications of cooling pump, the other end stretch into ultrasonic vibration unit top.
Specifically, as shown in fig. 2, the ultrasonic vibration unit includes a tray 2 and an ultrasonic vibration platform 3, the ultrasonic vibration platform 3 is disposed below the tray 2, the bottom end of the ultrasonic vibration platform 3 is fixedly connected to a fixing base 10, the bottom end of the fixing base 10 is fixedly connected to an output shaft of a motor 11, an elastic member is disposed between the tray 2 and the fixing base 10, namely, the tray 2 is driven to vibrate by adjusting the vibration frequency of the ultrasonic vibration platform 3 to atomize the metal in a molten state in the tray 2 into molecular suspension in an atomizing chamber, the ultrasonic vibration unit can respectively adopt the tray 2 and a vibration table made of copper alloy, stainless steel and titanium alloy materials according to different metal materials, the tray 2 and the vibration table can adapt to various metals and alloy materials with melting points ranging from 100 ℃ to 3500 ℃ from a fixed seat, the metal liquid is ensured not to be condensed into blocks, meanwhile, the tray 2 and the ultrasonic vibration platform 3 are driven to rotate by the motor 11 according to the processing requirement.
Further, the elastic component includes spring 12, tray 2 and fixing base 10 sliding connection, be equipped with spring 12 between tray 2 and the fixing base 10, tray 2 and ultrasonic vibration platform 3 between be equipped with multiunit ejector pin 31, ejector pin 31 bottom and 3 fixed connection of ultrasonic vibration platform, ejector pin 31 top parcel has the rubber sleeve, it vibrates to drive tray 2 when 3 vibrations of ultrasonic vibration platform promptly, make tray 2 and ultrasonic vibration platform 3 be in the swing joint through ejector pin 31, the vibration ripples of ultrasonic vibration platform 3 passes through ejector pin 31 transmission to tray 2 promptly, the rubber sleeve on ejector pin 31 can reduce wearing and tearing and mechanical shock between tray 2 and the ultrasonic vibration platform 3.
Preferably, the material heating unit comprises a heating cylinder 6 and a heating block 7, the heating block 7 is wrapped on the outer circumference side of the heating cylinder 6, a discharge port is formed in the bottom end of the heating cylinder 6, a feeding pipe 9 is fixedly connected to the discharge port, the other feeding pipe 9 extends to the upper side of the ultrasonic vibration unit, an end cover 61 is arranged above the heating cylinder 6, the end cover 61 is connected with the heating cylinder 6 in a sliding mode, and a feeding control mechanism is further arranged in the heating cylinder 6 and used for controlling the feeding amount.
Specifically, throw material control mechanism and include control lever 8, and 8 bottoms of control lever are the discharge gate department that conical inserted cartridge heater 6, and control lever 8 slides along vertical direction with 6 sliding connection of cartridge heater, 8 tops of control lever and 10 threaded connection of fixing base, fixing base 10 and 1 top fixed connection of vacuum chamber.
Preferably, the material receiving unit comprises a collecting cover 13, the collecting cover 13 is arranged above the material heating unit, the collecting cover 13 is in a bell mouth shape, a plurality of groups of partition plates 14 are arranged in the collecting cover 13 in an axially staggered manner, the collecting cover 13 is obliquely arranged, atomized particles generated by vibration of the tray 2 enter the collecting cover 13 in a suspended manner, the atomized particles are solidified and fall between the partition plates 14 after being cooled, the partition plates 14 are detachably connected with the collecting cover 13, so that the powder can be conveniently collected,
preferably, the air pipe 4 is connected in the inner cavity of the collecting hood 13, one end of the air pipe 4 is inserted into the collecting hood 13, and the other end of the collecting hood 13 is connected with the cooling unit.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", etc., indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the method is simple. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
It will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the spirit and scope of the invention, and any equivalents thereto, such as those skilled in the art, are intended to be embraced therein.
Claims (10)
1. A granulation method of high-temperature atomized metal alloy is characterized by comprising the following steps: putting a certain amount of metal into a heating cylinder, heating the metal by a heating unit to enable the metal to be in a molten state, slowly dripping the molten metal into a crucible which vibrates according to a set frequency, atomizing the molten metal by high-frequency vibration to enable the molten metal to suspend in the air in a molecular form, cooling the atomized suspended liquid molecules, solidifying the atomized suspended liquid molecules to be in a powder form, scattering the powder, and collecting the powder in a unit to obtain the metal powder.
2. The granulation method for high-temperature atomized metal alloy as claimed in claim 1, wherein the heating unit is heated by resistance wire heating, induction heating or arc heating.
3. A method as claimed in claim 1, wherein the crucible is vibrated at a frequency in the range of 1KHZ to 2.4 MHZ.
4. The equipment for the high-temperature atomization metal alloy granulation method is characterized by comprising an ultrasonic vibration unit, an atomization chamber unit, a material heating unit, a control unit and a material receiving unit, wherein the ultrasonic vibration unit is arranged in the center of the inside of the atomization chamber unit, the material heating unit is positioned outside the atomization chamber unit and is configured to melt metal into liquid state and transmit the liquid state to the ultrasonic vibration unit through a pipeline, a cooling unit is further arranged in the atomization chamber unit and is used for cooling metal suspended particles atomized by the ultrasonic vibration unit, the atomized metal molecular particles cooled by the cooling unit are made into powder and fall into the material receiving unit for collection, and the control unit is used for controlling working parameters of the ultrasonic vibration unit and the material heating unit.
5. The granulation equipment for high-temperature atomization of the metal alloy as claimed in claim 4, wherein the ultrasonic vibration unit comprises a tray (2) and an ultrasonic vibration platform (3), the ultrasonic vibration platform (3) is arranged below the tray (2), the bottom end of the ultrasonic vibration platform (3) is fixedly connected with a fixed seat (10), the bottom end of the fixed seat (10) is fixedly connected with an output shaft of a motor (11), and an elastic part is arranged between the tray (2) and the fixed seat (10).
6. The granulating apparatus for high-temperature atomization of metal alloy according to claim 5, wherein the elastic member comprises a spring (12), the tray (2) is slidably connected with the fixed seat (10), the spring (12) is arranged between the tray (2) and the fixed seat (10), a plurality of groups of ejector rods (31) are arranged between the tray (2) and the ultrasonic vibration platform (3), the bottom ends of the ejector rods (31) are fixedly connected with the ultrasonic vibration platform (3), and the top ends of the ejector rods (31) are wrapped with rubber sleeves.
7. The granulating apparatus for high-temperature atomization of metal alloy according to claim 4, wherein the material heating unit comprises a heating cylinder (6) and a heating block (7), the heating block (7) is wrapped on the outer circumferential side of the heating cylinder (6), a discharge port is arranged at the inner bottom end of the heating cylinder (6), a feeding pipe (9) is fixedly connected to the discharge port, the other end of the feeding pipe (9) extends to the upper part of the ultrasonic vibration unit, and a feeding control mechanism is further arranged in the heating cylinder (6).
8. The granulating apparatus for high-temperature atomizing of metal alloy as claimed in claim 7, wherein said feeding control mechanism comprises a control rod (8), the bottom end of said control rod (8) is inserted into the discharge port of the heating cylinder (6) in a conical shape, and said control rod (8) is slidably connected with the heating cylinder (6) and slides in the vertical direction.
9. The granulating apparatus for high-temperature atomizing of metal alloy as set forth in claim 4, wherein said collecting unit comprises a collecting cover (13), said collecting cover (13) is disposed above said material heating unit, said collecting cover (13) is bell mouth-shaped, said collecting cover (13) is provided with a plurality of groups of partition plates (14) along axial direction, said collecting cover (13) is disposed obliquely.
10. The granulating apparatus for high-temperature atomizing of metal alloy as claimed in claim 9, wherein said collecting hood (13) is connected with an air pipe (4) in its inner cavity, one end of said air pipe (4) is inserted into said collecting hood (13), and the other end of said collecting hood (13) is connected with a cooling unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110854457.9A CN113477930A (en) | 2021-07-28 | 2021-07-28 | Granulating method and equipment for high-temperature atomized metal alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110854457.9A CN113477930A (en) | 2021-07-28 | 2021-07-28 | Granulating method and equipment for high-temperature atomized metal alloy |
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| CN113477930A true CN113477930A (en) | 2021-10-08 |
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| CN202110854457.9A Pending CN113477930A (en) | 2021-07-28 | 2021-07-28 | Granulating method and equipment for high-temperature atomized metal alloy |
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| CN215824273U (en) * | 2021-07-28 | 2022-02-15 | 合肥科晶材料技术有限公司 | Granulation equipment for high-temperature atomization of metal alloy |
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2021
- 2021-07-28 CN CN202110854457.9A patent/CN113477930A/en active Pending
Patent Citations (9)
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|---|---|---|---|---|
| JP2004211155A (en) * | 2002-12-27 | 2004-07-29 | Tamura Kaken Co Ltd | Method for manufacturing metal microparticle, substance containing metal microparticle, and soldering paste composition |
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