CN114247903B - Metal 3D printing cooling device and metal 3D printing method - Google Patents
Metal 3D printing cooling device and metal 3D printing method Download PDFInfo
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- CN114247903B CN114247903B CN202111673302.1A CN202111673302A CN114247903B CN 114247903 B CN114247903 B CN 114247903B CN 202111673302 A CN202111673302 A CN 202111673302A CN 114247903 B CN114247903 B CN 114247903B
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- 238000001816 cooling Methods 0.000 title claims abstract description 213
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 77
- 239000002184 metal Substances 0.000 title claims abstract description 77
- 238000010146 3D printing Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 142
- 230000003116 impacting effect Effects 0.000 claims abstract 2
- 239000000498 cooling water Substances 0.000 claims description 29
- 238000005266 casting Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 3
- 239000000155 melt Substances 0.000 abstract description 8
- 230000017525 heat dissipation Effects 0.000 description 7
- 238000007639 printing Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910001094 6061 aluminium alloy Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/20—Cooling means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/06—Ingot moulds or their manufacture
- B22D7/064—Cooling the ingot moulds
-
- 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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/22—Direct deposition of molten metal
-
- 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
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/30—Platforms or substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention provides a metal 3D printing cooling device and a metal 3D printing method, and relates to the field of cooling equipment. The metal 3D printing cooling device comprises a cooling platform and a plurality of water cooling pipes, wherein the water cooling pipes are arranged on the upper surface of the cooling platform at intervals. According to the method, the plurality of water cooling pipes are directly arranged on the upper surface of the cooling platform, the metal melt passes through gaps of the plurality of water cooling pipes when impacting to the cooling platform and rapidly spreads on the upper surface of the cooling platform, the water cooling pipes are gradually covered and wrapped by the melt along with continuous falling of the melt, the outer wall of the water cooling pipes are in direct tight contact with the solidified cast ingot, a macroscopic-scale air gap is not formed, only a microscopic-scale negligible air gap can be formed, at the moment, no matter how large thermal deformation occurs between the cast ingot and the upper cooling plate, the water cooling pipes are always wrapped by the cast ingot, and a tight-contact surface is formed, so that interface thermal resistance is greatly reduced, cooling time is greatly shortened, and mechanical properties of the cast ingot are improved.
Description
Technical Field
The invention relates to the field of cooling equipment, in particular to a metal 3D printing cooling device and a metal 3D printing method.
Background
The existing metal 3D printing water cooling platform mainly comprises a bottom water cooling cavity and an upper cooling flat plate, wherein the upper cooling flat plate is used for supporting the weight of a printing cast ingot, resisting thermal deformation and transferring heat emitted by the cast ingot to cooling water at the bottom to be taken away, and a 6061 aluminum plate reinforcing rib structure is adopted. The structural schematic diagram is shown in figure 1.
The existing metal 3D printing water cooling platform has the main defects that the heat dissipation capacity is insufficient, and the temperature difference between the water inlet temperature and the water outlet temperature of the cooling platform in the printing process is only about 10 ℃ through monitoring. The heat dissipation time of the ingot to room temperature is often up to more than 5 hours.
In view of this, the present application is specifically proposed.
Disclosure of Invention
The invention aims to provide a metal 3D printing cooling device and a metal 3D printing method, which can shorten the cooling time and improve the mechanical properties of cast ingots.
Embodiments of the invention may be implemented as follows:
in a first aspect, the invention provides a metal 3D printing cooling device, which comprises a cooling platform and a plurality of water-cooled tubes, wherein the water-cooled tubes are arranged on the upper surface of the cooling platform at intervals.
In an alternative embodiment, the metal 3D printing cooling device further comprises two water splitters, wherein the two water splitters are connected to two ends of the plurality of water cooling pipes, and the water splitters are positioned outside two sides of the cooling platform;
preferably, the water separator is detachably connected with a plurality of the water cooling pipes.
In an alternative embodiment, the tube spacing between the plurality of said water-cooled tubes is in the range 25-35mm.
In an alternative embodiment, the cooling platform comprises a water cooling cavity, a cooling flat plate, a water inlet and a water outlet, wherein the cooling flat plate is covered on the upper surface of the water cooling cavity, the water inlet and the water outlet are communicated with the water cooling cavity, and the water cooling pipe is arranged on the upper surface of the cooling flat plate.
In an alternative embodiment, the water outlet is arranged on the side wall of the cooling flat plate, and the water outlet is higher than the lower surface of the cooling flat plate.
In an alternative embodiment, the water outlet is arranged on the side wall of the water cooling cavity, a water level lifting groove is formed in the bottom of the cooling flat plate, a dam is arranged in the cooling cavity, and the top of the dam is higher than the lower surface of the cooling flat plate and is positioned in the water level lifting groove.
In an alternative embodiment, the bottom of the cooling plate is provided with reinforcing ribs.
In an alternative embodiment, the water cooling cavity and the water cooling pipe are cooled by cooling water which is independent from each other.
In a second aspect, the present invention provides a metal 3D printing method comprising: the metal melt is impacted onto the metal 3D printing cooling device according to any one of the previous embodiments through a spray head, the metal melt passes through gaps among a plurality of water cooling pipes and spreads on the upper surface of the cooling platform, the water cooling pipes are gradually covered and wrapped by the metal melt along with continuous falling of the metal melt, and the metal melt continuously impacts until the ingot casting printing is completed.
In an alternative embodiment, the metal 3D printing method further comprises removing the ingot wrapped with the water-cooled tube and cutting a portion of the ingot wrapped with the water-cooled tube.
The beneficial effects of the embodiment of the invention include, for example:
the embodiment of the invention provides a metal 3D printing cooling device, which is characterized in that a plurality of water cooling pipes are directly arranged on the upper surface of a cooling platform, so that when metal melt is impacted to the cooling platform, the metal melt passes through gaps of the water cooling pipes and rapidly spreads on the upper surface of the cooling platform, the water cooling pipes are gradually covered and wrapped by the melt along with continuous falling of the melt, the outer walls of the water cooling pipes are directly and tightly contacted with solidified ingots, a macroscopic air gap is not formed, only a microscopic air gap which can be ignored is formed, no matter how much thermal deformation occurs between the ingots and an upper cooling flat plate, the water cooling pipes are always wrapped by the ingots, and a tightly contacted surface is formed, so that interface thermal resistance is greatly reduced, the cooling water in the water cooling pipes continuously cools the ingots, the cooling effect is good, and the cooling time is greatly shortened. The cooling time is shortened, which is beneficial to improving the mechanical property of the cast ingot. In addition, the metal 3D printing method provided by the application can effectively shorten the cooling time, and the obtained cast ingot is excellent in mechanical property.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a conventional metal 3D printing water cooling platform provided in the background art of the present application;
FIG. 2 is a schematic diagram of the present application for analyzing insufficient heat dissipation capability of a conventional metal 3D printing water cooling platform;
FIG. 3 is a top view of a metal 3D printing cooling apparatus provided herein;
fig. 4 is a schematic structural diagram of a water outlet of the metal 3D printing cooling device provided in the present application when the water outlet is disposed on a side wall of the water cooling cavity;
fig. 5 is a schematic structural diagram of a water outlet of the metal 3D printing cooling device provided in the present application when the water outlet is disposed on a side wall of a cooling plate.
Icon: 10-an existing metal 3D printing water cooling platform; 100-metal 3D printing cooling device; 110-cooling the platform; 111-a water cooling cavity; 112-cooling the plate; 113-a water inlet; 114-a water outlet; 115-reinforcing ribs; 116-a water level lifting groove; 117-dam; 120-water cooling pipe; 130-water separator.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Referring to fig. 1, the present application finds that, by studying the structure of the existing metal 3D printing water cooling platform 10 and the contact condition between the existing metal 3D printing water cooling platform 10 and the ingot during the cooling process, the main reason for the insufficient heat dissipation capability of the existing metal 3D printing water cooling platform 10 is that the upper and lower surfaces (interface 1 and interface 2) of the cooling plate 112 form an air gap, which seriously hinders the heat dissipation of the ingot to the cooling water. As shown in fig. 2:
the interface 1 is the interface between the upper surface of the cooling plate 112 and the ingot, and the main reason for forming an air gap on the interface 1 is that the upper surface of the cooling plate 112 is deformed and arched upwards under the local high-temperature baking of the ingot. The cast ingot and the cooling flat plate 112 are separated from the cast ingot which is printed in the cooling process during the printing process and after the printing process is finished, and an air gap in the millimeter or even centimeter level is formed.
The interface 2 is an interface between the lower surface of the cooling plate 112 and the cooling water, and the main reason for forming an air gap on the interface 2 is that the cooling water level is low, and the cooling water cannot directly contact with the lower surface of the upper cooling plate, except that the middle of the upper surface of the cooling plate 112 is arched upwards.
Based on the above study and analysis, please refer to fig. 3, the present application provides a metal 3D printing cooling device 100, which includes a cooling platform 110 and a plurality of water cooling pipes 120, wherein the plurality of water cooling pipes 120 are arranged on the upper surface of the cooling platform 110 at intervals.
The application is based on the cooling platform 110, and a plurality of water-cooling pipes 120 are arranged on the upper surface of the cooling platform at intervals, and the pipe spacing between the plurality of water-cooling pipes 120 is 25-35mm. When the metal melt is printed on the cooling platform 110, the metal melt is rapidly spread on the upper surface of the cooling platform 110 through the gap between the water cooling pipes 120, and as the melt continuously falls, the water cooling pipes 120 are gradually covered and wrapped by the melt, the outer walls of the water cooling pipes 120 are in direct and close contact with the solidified cast ingot, the air gap with a macroscopic scale is not formed, only the air gap with a microscopic scale which is negligible can be formed, no matter how large thermal deformation occurs between the cast ingot and the upper cooling flat plate 112, the water cooling pipes 120 are always wrapped by the cast ingot, and a surface in close contact is formed, so that the interface thermal resistance is greatly reduced, and the cooling time is remarkably shortened.
Further, the metal 3D printing cooling device 100 in the present application further includes two water splitters 130, the two water splitters 130 are connected to two ends of the plurality of water cooling pipes 120, and the water splitters 130 are located outside two sides of the cooling platform 110; the water separator 130 can facilitate water inlet and water discharge for the plurality of water cooling pipes 120 at the same time, and the operation is more convenient. In this application, the water separator 130 is detachably connected to the plurality of water cooling pipes 120. Because the lower part of the metal melt wraps the water-cooled tube 120 after the printing of the metal melt is completed, the water-cooled tube 120 cannot be directly taken out, and therefore, the water separator 130 is detachably connected with the water-cooled tube 120, the water-cooled tube 120 and the cast ingot wrapped with the water-cooled tube 120 can be taken down together, and then the lower part of the cast ingot is cut.
In addition, it should be noted that, the water-cooled tube 120 in the present application is made of an aluminum alloy, and in particular, an aluminum alloy similar to a printed metal melt may be selected for preparation, and after the ingot is cut, the part of the ingot including the water-cooled tube 120 may be directly remelted, and the ingot may be reused by adjusting the composition of the structure.
Further, the present application not only arranges the water cooling pipes 120 on the surface of the cooling platform 110 to improve the clearance problem of the interface 1 existing in the prior art, but also improves the cooling platform 110 to improve the clearance problem of the interface 2 existing in the prior art.
Specifically, in the present application, the cooling platform 110 includes a water cooling cavity 111, a cooling flat plate 112, a water inlet 113 and a water outlet 114, the cooling flat plate 112 covers the upper surface of the water cooling cavity 111, the water inlet 113 and the water outlet 114 are both communicated with the water cooling cavity 111, the water cooling pipe 120 is arranged on the upper surface of the cooling flat plate 112, and the bottom of the cooling flat plate 112 is provided with a reinforcing rib 115.
In the prior art, the water inlet 113 and the water outlet 114 are disposed on the side wall of the water cooling chamber 111, which results in the cooling water level in the water cooling chamber 111 being lower than the lower surface of the cooling plate 112, thereby forming the interface 2.
For this reason, the present application improves the arrangement position of the water outlet 114, and by arranging the water outlet 114 on the side wall of the cooling plate 112 (refer to fig. 5), the water outlet 114 is positioned higher than the lower surface of the cooling plate 112. By adjusting the position of the water outlet 114 upwards, the cooling water level is increased as a whole. Alternatively, referring to fig. 4, the water outlet 114 may be disposed on a side wall of the water cooling cavity 111, and a water level lifting groove 116 is disposed at a bottom of the cooling plate 112, a dam 117 is disposed in the cooling cavity, and a top of the dam 117 is higher than a lower surface of the cooling plate 112 and is located in the water level lifting groove 116. The cooling water in the water cooling chamber 111 can pass only through the upper portion of the dam 117, so that the cooling water level can be effectively raised.
According to the method, the cooling water level in the water cooling cavity 111 can be lifted, so that the cooling water is directly contacted with the lower surface of the cooling flat plate 112, the problem that an air gap is formed at the interface 2 caused by too low cooling water level in the prior art is effectively solved, the cooling effect of the water cooling cavity 111 is improved, and the cooling time is greatly shortened.
Further, the water cooling cavity 111 and the water cooling pipe 120 may be cooled by a set of cooling water, or may be cooled by independent cooling water, and in this application, in order to increase the cooling effect, it is preferable that the water cooling cavity 111 and the water cooling pipe 120 are cooled by independent cooling water.
According to the metal 3D printing and cooling device 100 provided in this embodiment, the working principle is that: according to the cooling device, the plurality of water cooling pipes 120 are directly arranged on the upper surface of the cooling flat plate 112, meanwhile, the position of the water outlet 114 of cooling water in the water cooling cavity 111 is improved to improve the height of the cooling water level in the water cooling cavity 111, the cooling water is directly contacted with the lower surface of the cooling flat plate 112, through the improvement, the gap between the upper surface of the cooling flat plate 112 and an ingot and the gap between the lower surface of the cooling flat plate 112 and the cooling water level are well improved, and then the ingot is effectively guaranteed to rapidly dissipate heat to the cooling water, and the heat dissipation effect is greatly improved.
Through adopting current metal 3D to print water cooling platform 10 and this application to provide metal 3D prints cooling device 100 and cool off, under the same experimental condition, through cooling platform 110 water inlet temperature and the water outlet temperature of control printing in-process, when finding to adopt current metal 3D to print water cooling platform 10 to cool off, cooling platform 110 water outlet temperature and water inlet temperature's temperature difference is only about 10 ℃, and the ingot casting is dispelled the heat to the time of room temperature often for more than 5 hours. When the metal 3D printing cooling device 100 provided by the application is used for cooling, the temperature difference between the water outlet temperature and the water inlet temperature of the cooling platform 110 exceeds 20 ℃ or more, and the cooling time is shortened to 1 hour from the past 5 hours.
In addition, the application also provides a metal 3D printing method, which comprises the following steps: the metal melt is impacted onto the metal 3D printing and cooling device 100 through the spray head, passes through gaps among the water-cooled tubes 120 and spreads on the upper surface of the cooling platform 110, and as the metal melt continuously falls down, the water-cooled tubes 120 are gradually covered and wrapped by the metal melt, and the metal melt continuously impacts until the ingot casting is printed. The ingot wrapped with the water-cooled tube 120 is removed and the portion of the ingot wrapped with the water-cooled tube 120 is cut.
In summary, the embodiment of the invention provides a metal 3D printing cooling device 100, which directly arranges a plurality of water-cooled tubes 120 on the upper surface of a cooling platform 110, so that when a metal melt impacts to the cooling platform 110, the metal melt passes through gaps of the water-cooled tubes 120 and rapidly spreads on the upper surface of the cooling platform 110, as the melt continuously falls, the water-cooled tubes 120 are gradually covered and wrapped by the melt, the outer wall of the water-cooled tubes 120 is in direct close contact with the solidified ingot, no macroscopic air gap is formed, only a microscopic air gap can be formed, no matter how large thermal deformation occurs between the ingot and an upper cooling plate 112, the water-cooled tubes 120 are always wrapped by the ingot, and a close contact surface is formed, so that interface thermal resistance is greatly reduced, cooling water in the water-cooled tubes 120 continuously cools the ingot, a cooling effect is good, and cooling time is greatly shortened. The cooling time is shortened, so that the mechanical property of the cast ingot is improved, the cooling speed is high, the grain refinement is facilitated, the primary crystal compound size can be refined, and the degree of regional segregation is reduced. In addition, the metal 3D printing method provided by the application can effectively shorten the cooling time, and the obtained cast ingot is excellent in mechanical property.
Meanwhile, the position of the water outlet 114 of the cooling water in the water cooling cavity 111 is improved to raise the cooling water level in the water cooling cavity 111, so that the cooling water is directly contacted with the lower surface of the cooling flat plate 112, and through the improvement, the gap between the upper surface of the cooling flat plate 112 and the cast ingot and the gap between the lower surface of the cooling flat plate 112 and the cooling water level are well improved, and further, the cast ingot is effectively guaranteed to quickly dissipate heat to the cooling water, and the heat dissipation effect is greatly improved.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method of metal 3D printing, comprising: impacting a metal melt onto a metal 3D printing and cooling device through a spray nozzle, wherein the metal 3D printing and cooling device comprises a cooling platform and a plurality of water cooling pipes, and the water cooling pipes are arranged on the upper surface of the cooling platform at intervals;
the metal melt passes through gaps among the water-cooled tubes and spreads on the upper surface of the cooling platform, the water-cooled tubes are gradually covered and wrapped by the metal melt along with the continuous falling of the metal melt, and the metal melt continuously impacts until the ingot casting is printed.
2. The metal 3D printing method according to claim 1, wherein the metal 3D printing cooling device further comprises two water splitters, which are connected to two ends of the plurality of water cooling pipes, and the water splitters are located outside two sides of the cooling platform.
3. The metal 3D printing method as defined in claim 2 wherein the water separator is detachably connected to the plurality of water-cooled tubes.
4. The metal 3D printing method as defined in claim 1 wherein a tube spacing between a plurality of the water-cooled tubes is 25-35mm.
5. The metal 3D printing method according to claim 1, wherein the cooling platform comprises a water cooling cavity, a cooling flat plate, a water inlet and a water outlet, the cooling flat plate is covered on the upper surface of the water cooling cavity, the water inlet and the water outlet are communicated with the water cooling cavity, and the water cooling pipe is arranged on the upper surface of the cooling flat plate.
6. The method of claim 5, wherein the water outlet is provided on a side wall of the cooling plate, and the water outlet is located higher than a lower surface of the cooling plate.
7. The metal 3D printing method according to claim 5, wherein the water outlet is formed in the side wall of the water cooling cavity, a water level lifting groove is formed in the bottom of the cooling flat plate, a dam is arranged in the water cooling cavity, and the top of the dam is higher than the lower surface of the cooling flat plate and is located in the water level lifting groove.
8. The metal 3D printing method as defined in claim 5, wherein the bottom of the cooling plate is provided with a reinforcing rib.
9. The method of metal 3D printing according to claim 5, wherein the water cooling chamber and the water cooling tube are cooled with cooling water independent of each other.
10. The metal 3D printing method as defined in claim 1 further comprising removing the ingot wrapped with the water-cooled tube and cutting a portion of the ingot wrapped with the water-cooled tube.
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| CN202111673302.1A CN114247903B (en) | 2021-12-31 | 2021-12-31 | Metal 3D printing cooling device and metal 3D printing method |
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| JPH0878027A (en) * | 1994-09-02 | 1996-03-22 | Toshiba Corp | Cooling plate of fuel cell and its manufacture |
| JPH08141703A (en) * | 1994-11-16 | 1996-06-04 | Mitsubishi Materials Corp | Production of ingot having shrinkage cavity in center part |
| JP2009039752A (en) * | 2007-08-09 | 2009-02-26 | Nikkei Mc Aluminum Co Ltd | Casting apparatus |
| JP2010227994A (en) * | 2009-03-30 | 2010-10-14 | Hitachi Cable Ltd | Water-cooled mold for continuous casting, and method for producing ingot |
| CN103894565A (en) * | 2014-04-17 | 2014-07-02 | 铜陵有色兴铜机电制造有限公司 | Crystallizer with improved cooling channels |
| KR20170115279A (en) * | 2016-04-07 | 2017-10-17 | 안장홍 | High efficiency cooling plate for casting mold and its manufacturing method |
| CN108859113A (en) * | 2018-06-22 | 2018-11-23 | 陈惠晋 | One kind can heat 3D printer |
| KR101921722B1 (en) * | 2018-07-03 | 2018-11-23 | (주)대주금속 | The shielded gas apparatus for 3D Printer and its cooling system including the same |
| CN211616637U (en) * | 2019-12-06 | 2020-10-02 | 湖北金色阳光创客教育有限公司 | 3D prints presentation device for experiment teaching |
| CN111900510A (en) * | 2020-06-19 | 2020-11-06 | 浙江大学 | Partitioned cooling device for lithium ion battery of electric forklift |
| CN112406103A (en) * | 2020-10-29 | 2021-02-26 | 王勇 | A complementary unit of unloading for improving 3D prints model integrity |
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