CN108788155A - The preparation method and device of segregation-free congruence axialite cast metals - Google Patents
The preparation method and device of segregation-free congruence axialite cast metals Download PDFInfo
- Publication number
- CN108788155A CN108788155A CN201710421451.6A CN201710421451A CN108788155A CN 108788155 A CN108788155 A CN 108788155A CN 201710421451 A CN201710421451 A CN 201710421451A CN 108788155 A CN108788155 A CN 108788155A
- Authority
- CN
- China
- Prior art keywords
- ingot
- mobile
- nozzle
- mobile ingot
- dimensional
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
-
- 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
Abstract
A kind of segregation-free cast metals preparation method and device with full equiaxed grain structure, including：METAL HEATING PROCESS mechanism with lost pressure cooling mechanism, wherein：METAL HEATING PROCESS mechanism is located above lost pressure cooling mechanism and is attached thereto by nozzle；The lost pressure cooling mechanism includes：Vacuum chamber with air admission hole and gas vent and internal vacuum chamber is set to for the laser aid of local remelting and three-dimensional mobile ingot mechanism, the mobile ingot mechanism of the three-dimensional includes mobile ingot and the two-dimensional movement platform that is connected vertically therewith, the outside of mobile ingot is equipped with magnetism servo-electric motor water-cooling, and drives mobile ingot to carry out precise displacement up and down by precision electric motor.The present invention improves the consistency of cast metals by the way that atomized spray to be changed to the process means of liquid injection, mitigates its oxidation, while improving the production efficiency of ingot casting, the aluminium and its alloy cast ingot that can quickly prepare with full equiaxed grain structure and be segregated without Macro-Elements.
Description
Technical field
The present invention relates to a kind of technology of field of metallurgy, the system of specifically a kind of segregation-free congruence axialite cast metals
Preparation Method and device.
Background technology
Can be with the workpiece of prepared composition segregation-free by increasing material manufacturing method, traditional increasing material manufacturing method is to pass through powdering
Laser remolten carries out afterwards, is suitable for preparing complex-shaped workpiece.But the production efficiency of this method is relatively low, it is not multiple for shape
For miscellaneous ingot casting, production efficiency can be improved by being improved to increasing material manufacturing mode.
Invention content
The present invention is for prior art device and the process is more complicated that energy consumption is higher, and be difficult to prepare completely from macroscopic view to
The defect of microcosmic segregation-free ingot casting proposes a kind of preparation method and device of segregation-free congruence axialite cast metals, improves
The increasing material mode of laser remolten after powdering realizes quick height after laser preheating, liquid melts coating by the way of quick solidification
The increasing material manufacturing method towards ingot casting of effect.It can be prepared using this method and completely eliminate gross segregation and with more tiny
The aluminium and its alloy cast ingot of even full equiaxed grain structure.
The present invention is achieved by the following technical solutions：
The present invention relates to a kind of segregation-free congruence axialite cast metals preparation facilities, including：METAL HEATING PROCESS mechanism is with negative pressure
Cooling body, wherein：METAL HEATING PROCESS mechanism is located above lost pressure cooling mechanism and is attached thereto by nozzle.
The METAL HEATING PROCESS mechanism includes：Crucible, filter device and the nozzle flapper from top to bottom set gradually.
The outside of the crucible is equipped with heater and insulating layer successively.
The outlet end of the nozzle, which is equipped with, is used for pre-warmed nozzle heater.
The lost pressure cooling mechanism includes：Vacuum chamber with air admission hole and gas vent and it is set to internal vacuum chamber
Laser aid for local remelting and three-dimensional mobile ingot mechanism, the three-dimensional mobile ingot mechanism vertical phase including mobile ingot and therewith
The outside of two-dimensional movement platform even, mobile ingot is equipped with magnetism servo-electric motor water-cooling, and drives mobile ingot to carry out essence up and down by precision electric motor
True displacement.
The present invention relates to a kind of preparation methods of segregation-free congruence axialite cast metals, pass through the molten metal after heating
The surface of the mobile ingot of the three-dimensional activity through local remelting under subnormal ambient is sprayed to by vertical nozzle so that molten metal and shifting
Moment condensation occurs when dynamic ingot surface contact, moves to obtain the crystallizing layer that a thickness is δ by the horizontal plane of mobile ingot, then
Ingot will be moved to move down the distance of δ and repeat the plane motion to form new crystallizing layer, repeatedly afterwards up to ingot casting.
The molten metal refers to：Heating fusing molten metal, obtains until completely melted in crucible.
Molten metal temperature is heated to fusing point and keeps the temperature 1 hour by the heating.
The molten metal is handled preferably through filter, and filtered molten aluminum is placed in heat preservation chute and stops 1 hour and incite somebody to action
Temperature is adjusted to the fusing point of metal or more.
The negative pressure refers to：Less than 1 normal atmosphere (An)；Molten metal injection can be controlled by control pressure difference
Speed and flow.
The negative pressure is preferably first to be vacuumized in vacuum chamber, is re-filled with appropriate argon gas, keeps the indoor air pressure of vacuum small
In 1 normal atmosphere (An).
The preferably preheated processing of the vertical nozzle, fusing point of the preheating temperature higher than wherein metal.
The mobile ingot is at a distance from jet expansion, i.e. jet length D1≤50cm.
Vertical range D2≤10cm of the mobile ingot and cooling surface.
The movement speed v of the horizontal plane movement of the mobile ingot1≤ 100mm/s, passage spacing d≤10mm/ passages.
The preferably preheated processing of the mobile ingot, preheating temperature are slightly below the solidus temperature of mobile ingot matter.
The mobile ingot uses aluminium and its alloy.
The remelting meets the micro- melting zone for making mobile ingot surface formation width be more than passage spacing d.
Description of the drawings
Fig. 1 is apparatus of the present invention structural schematic diagram；
Fig. 2 is ingot casting vertical view；
In figure：1 crucible, 2 heating layers, 3 insulation covers, 4 filter devices, 5 nozzles, 6 nozzle flappers, 7 nozzle heaters, 8 are very
Empty room, 9 laser aids, 10 ingot casting heating devices, 11 two-dimensional movement platforms, 12 precision electric motors, 13 air admission holes, 14 gas vents, 15
Vacuum pump, 16 connecting rods, 17 aluminium ingots, 18 aluminium ingot substrates.
Specific implementation mode
Embodiment 1
As shown in Figure 1, the segregation-free congruence axialite cast metals preparation facilities that the present embodiment is related to includes：Crucible 1, heating
Layer 2, insulation cover 3, filter device 4, nozzle 5, nozzle flapper 6, nozzle heater 7, vacuum chamber 8, laser aid 9, ingot casting heating
Device 10, two-dimensional movement platform 11, control unit 12, air admission hole 13, gas vent 14, vacuum pump 15, connecting rod 16, aluminium ingot 17, aluminium
Ingot substrate 18.
The present embodiment uses above-mentioned apparatus, after fine aluminium is poured into crucible first, stops 1 hour, and adjust temperature to 690
℃.By vacuum chamber, it is filled with appropriate argon gas, it is 0.8 atmospheric pressure to make the indoor air pressure of vacuum, and is carried out to nozzle pre-
Heat is preheated to 700 DEG C of temperature；Setting jet length is 15cm, laser power 150W, and laser remolten point contacts with melt jet
The horizontal distance of point is 2.5cm, cooling bench movement speed 4.5mm/s, passage spacing 0.8mm, move mode such as Fig. 2.It sets cold
But the total displacement of platform in three directions is respectively X=100mm, Y=80mm, Z=80mm.
Laser aid is opened, local remelting is carried out to aluminium ingot substrate；Start three-dimensional mobile platform simultaneously, aluminium ingot substrate is therewith
Nozzle gear is lifted in horizontal movement when the horizontal distance of laser remolten point and melt jet contact point in aluminium ingot substrate is 8mm
Plate, the fine aluminium melt kept the temperature in crucible spray under the action of draught head from nozzle, and molten aluminum is ejected into mobile aluminium ingot substrate
Simultaneously moment condenses on surface.By controlling three-dimensional mobile station or so and anterior-posterior translation, keep crystallization complete on a rectangle plane
At, formed thickness be 0.8mm thin layer.The distance that aluminium ingot is moved down to 0.8mm after the completion is iterating through the three-dimensional shifting of control
Dynamic platform or so and anterior-posterior translation form new crystallizing layer, this process of repetition can be prepared with full equiaxed grain structure and unbiased
The cube ingot casting of analysis, the size for finally obtaining cube ingot casting are 100*80*80mm.
Embodiment 2
The present embodiment uses device same as Example 1, after Al-4%Cu aluminium alloys are poured into crucible first,
It stops 1 hour, and adjusts temperature to 665 DEG C.By vacuum chamber, it is filled with appropriate argon gas, it is 0.8 to make the indoor air pressure of vacuum
A atmospheric pressure, and nozzle is preheated, it is preheated to 670 DEG C of temperature；Setting jet length be 15cm, laser power 180W,
The horizontal distance of laser remolten point and melt jet contact point is 2.0cm, cooling bench movement speed 6mm/s, passage spacing
1.1mm, move mode such as Fig. 2.It is respectively X=60mm, Y=60mm, Z=to set the total displacement of cooling bench in three directions
60mm。
Laser aid is opened, local remelting is carried out to aluminium ingot substrate.Start three-dimensional mobile platform, aluminium ingot substrate is horizontal therewith
Movement lifts nozzle flapper when the horizontal distance of laser remolten point and melt jet contact point in aluminium ingot substrate is 12mm,
Alloy molten aluminum in heat preservation crucible sprays under the action of draught head from nozzle, and molten aluminum is ejected into mobile aluminium ingot substrate surface
And moment condenses.By controlling three-dimensional mobile station or so and anterior-posterior translation, crystallization is set to be completed on a rectangle plane, shape
At the thin layer that thickness is 1.1mm.The distance that aluminium ingot is moved down to 1.1mm after the completion is iterating through the three-dimensional mobile station of control
Left and right and anterior-posterior translation form new crystallizing layer, this process of repetition can be prepared with full equiaxed grain structure and segregation-free
Cube ingot casting, the size for finally obtaining cube ingot casting are 60*60*60mm.
Above-mentioned specific implementation can by those skilled in the art under the premise of without departing substantially from the principle of the invention and objective with difference
Mode carry out local directed complete set to it, protection scope of the present invention is subject to claims and not by above-mentioned specific implementation institute
Limit, each implementation within its scope is by the constraint of the present invention.
Claims (11)
1. a kind of segregation-free metal alloy ingot casting preparation facilities with full equiaxed grain structure, which is characterized in that including：Metal adds
Heat engine structure with lost pressure cooling mechanism, wherein：METAL HEATING PROCESS mechanism is located above lost pressure cooling mechanism and is attached thereto by nozzle；
The lost pressure cooling mechanism includes：Vacuum chamber with air admission hole and gas vent and internal vacuum chamber is set to for local remelting
Laser aid and three-dimensional mobile ingot mechanism, it includes mobile ingot and the two-dimensional movement that is connected vertically therewith which, which moves ingot mechanism,
The outside of platform, mobile ingot is equipped with magnetism servo-electric motor water-cooling, and drives mobile ingot to carry out precise displacement up and down by precision electric motor.
2. the apparatus according to claim 1, characterized in that the METAL HEATING PROCESS mechanism includes：From top to bottom set successively
Crucible, filter device and the nozzle flapper set.
3. the apparatus according to claim 1, characterized in that the outside of the crucible is equipped with heater and heat preservation successively
Layer.
4. the apparatus according to claim 1, characterized in that the outlet end of the nozzle, which is equipped with, is used for pre-warmed nozzle
Heater.
5. a kind of segregation-free metal alloy ingot casting preparation method with full equiaxed grain structure, which is characterized in that by that will heat
Molten metal afterwards sprays to the surface of the mobile ingot of the three-dimensional activity through local remelting under subnormal ambient by vertical nozzle so that
Moment condensation occurs when being contacted with mobile ingot surface for molten metal, moves to obtain a thickness to be δ by the horizontal plane of mobile ingot
Crystallizing layer, then mobile ingot is moved down the distance of δ and repeats the plane motion to form new crystallizing layer, is repeated more
Up to ingot casting after secondary.
6. according to the method described in claim 5, it is characterized in that, the molten metal is through filtration treatment, filtered metal
Melt, which is placed in heat preservation chute, to stop 1 hour and temperature is adjusted to the fusing point of metal or more.
7. according to the method described in claim 5, it is characterized in that, the negative pressure refers to：Less than 1 normal atmosphere (An)；Pass through
Control pressure difference can control the speed and flow of molten metal injection.
8. according to the method described in claim 5, it is characterized in that, the negative pressure be first vacuumized in vacuum chamber, be re-filled with
Appropriate argon gas makes the indoor air pressure of vacuum be less than 1 normal atmosphere (An).
9. according to the method described in claim 5, it is characterized in that, the movement speed v of the horizontal plane of mobile ingot movement1
≤ 100mm/s, passage spacing d≤10mm/ passages.
10. according to the method described in claim 5, it is characterized in that, the preheated processing of mobile ingot, preheating temperature is slightly below
The solidus temperature of mobile ingot matter.
11. according to the method described in claim 9, it is characterized in that, the remelting, satisfaction keeps mobile ingot surface formation width big
In micro- melting zone of passage spacing d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710421451.6A CN108788155A (en) | 2017-06-07 | 2017-06-07 | The preparation method and device of segregation-free congruence axialite cast metals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710421451.6A CN108788155A (en) | 2017-06-07 | 2017-06-07 | The preparation method and device of segregation-free congruence axialite cast metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108788155A true CN108788155A (en) | 2018-11-13 |
Family
ID=64095040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710421451.6A Pending CN108788155A (en) | 2017-06-07 | 2017-06-07 | The preparation method and device of segregation-free congruence axialite cast metals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108788155A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109202084A (en) * | 2018-11-16 | 2019-01-15 | 上海交通大学 | Array injecting type large scale congruence axialite aluminium alloy ingots increasing material manufacturing equipment and method |
| CN110125347A (en) * | 2019-06-14 | 2019-08-16 | 上海交通大学 | The high momentum rapid shaping preparation facilities and method of isometric aluminium alloy |
| CN110153428A (en) * | 2019-06-14 | 2019-08-23 | 上海交通大学 | It is used to form the spray nozzle device of stable metal melt fluid column |
| CN110202152A (en) * | 2019-06-14 | 2019-09-06 | 上海交通大学 | Interrupted injection formula alloy pig increasing material manufacturing device and method |
| CN113714512A (en) * | 2021-09-08 | 2021-11-30 | 上海交通大学 | Large-size aluminum alloy slab ingot and preparation method and preparation device thereof |
| CN114619044A (en) * | 2020-12-10 | 2022-06-14 | 上海交通大学 | Preparation method and device of radial composite aluminum alloy plate based on liquid metal 3D printing |
| CN114619032A (en) * | 2020-12-10 | 2022-06-14 | 上海交通大学 | Ingot casting device used in gravity-free environment and application method thereof |
| CN114807642A (en) * | 2022-03-24 | 2022-07-29 | 北京科技大学 | Segregation-free alloy and high-yield preparation method thereof |
-
2017
- 2017-06-07 CN CN201710421451.6A patent/CN108788155A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109202084A (en) * | 2018-11-16 | 2019-01-15 | 上海交通大学 | Array injecting type large scale congruence axialite aluminium alloy ingots increasing material manufacturing equipment and method |
| US11524332B2 (en) | 2018-11-16 | 2022-12-13 | Shanghai Jiaotong University | Array-spraying additive manufacturing apparatus and method for manufacturing large-sized equiaxed crystal aluminum alloy ingot |
| CN110125347A (en) * | 2019-06-14 | 2019-08-16 | 上海交通大学 | The high momentum rapid shaping preparation facilities and method of isometric aluminium alloy |
| CN110153428A (en) * | 2019-06-14 | 2019-08-23 | 上海交通大学 | It is used to form the spray nozzle device of stable metal melt fluid column |
| CN110202152A (en) * | 2019-06-14 | 2019-09-06 | 上海交通大学 | Interrupted injection formula alloy pig increasing material manufacturing device and method |
| CN110202152B (en) * | 2019-06-14 | 2020-11-03 | 上海交通大学 | Intermittent jet type alloy ingot additive manufacturing device and method |
| CN110125347B (en) * | 2019-06-14 | 2021-06-25 | 上海交通大学 | High-momentum rapid forming preparation device and method for isometric crystal aluminum alloy |
| CN114619044A (en) * | 2020-12-10 | 2022-06-14 | 上海交通大学 | Preparation method and device of radial composite aluminum alloy plate based on liquid metal 3D printing |
| CN114619032A (en) * | 2020-12-10 | 2022-06-14 | 上海交通大学 | Ingot casting device used in gravity-free environment and application method thereof |
| CN113714512A (en) * | 2021-09-08 | 2021-11-30 | 上海交通大学 | Large-size aluminum alloy slab ingot and preparation method and preparation device thereof |
| CN114807642A (en) * | 2022-03-24 | 2022-07-29 | 北京科技大学 | Segregation-free alloy and high-yield preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108788155A (en) | The preparation method and device of segregation-free congruence axialite cast metals | |
| CN108788102A (en) | Increase preparation method and device that material method quickly solidifies congruent axialite aluminium alloy cast ingot | |
| CN109202084B (en) | Array jet type large-size full-equiaxed crystal aluminum alloy ingot additive manufacturing equipment and method | |
| CN110125411B (en) | Device and method for preparing melt micro-area impact type full-equiaxial crystal ingot | |
| EP0903193B1 (en) | Apparatus for producing metal to be semimolten-molded | |
| CN110202152B (en) | Intermittent jet type alloy ingot additive manufacturing device and method | |
| CN104001906B (en) | The shaping device and method of thin layer rapid solidification | |
| CN105397045A (en) | Casting rolling device and method for aluminum alloy plate blank | |
| CN109365818A (en) | A kind of selective laser thawing forming method and device for porous interlayer honeycomb | |
| JP2003290876A (en) | Method of making amorphous metallic sheet | |
| US11707778B2 (en) | Method and apparatus for manufacturing equiaxed crystal aluminum alloy cast ingot by using additive manufacturing and rapid solidification techniques | |
| CN109248995A (en) | A kind of preparation method of spray belt bag and nanocrystalline strip | |
| CN108213383B (en) | Semi-solid slurry preparation method and device | |
| CN115592136A (en) | Forming substrate heating mechanism and printing method for 3D printing forming metal material | |
| He et al. | A novel droplet+ arc additive manufacturing for aluminum alloy: Method, microstructure and mechanical properties | |
| CN112091191B (en) | Preparation method and device of non-vacuum down-drawing semi-continuous casting copper-manganese alloy slab ingot | |
| JPS6072646A (en) | Method and device for horizontal and continuous casting of metallic molding consisting of unidirectionally solidified structure | |
| Chen et al. | Layered microstructure distribution and forming mechanism of laser-processed Ni-Fe-B-Si-Nb-C amorphous composite coatings | |
| CN114619045B (en) | Roll shaft manufacturing device and composite roll manufacturing method | |
| CN109676099B (en) | Method for preparing plate with oriented texture | |
| CN114226756B (en) | Additive manufacturing method | |
| CN214290838U (en) | Roller ingot casting device | |
| CN203373414U (en) | Multi-DoF (Degree of Freedom) numerical-control metallurgical jet flow direct forming equipment | |
| CN116000298A (en) | Preparation method of spray deposited aluminum silicon electronic packaging material | |
| CN1308474C (en) | Aluminium lead alloy bush cast lingot and its production process and apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181113 |
|
| RJ01 | Rejection of invention patent application after publication |