CN106825459A - A kind of vacuum casting device of TiAl intermetallic compound ingot - Google Patents
A kind of vacuum casting device of TiAl intermetallic compound ingot Download PDFInfo
- Publication number
- CN106825459A CN106825459A CN201611250119.XA CN201611250119A CN106825459A CN 106825459 A CN106825459 A CN 106825459A CN 201611250119 A CN201611250119 A CN 201611250119A CN 106825459 A CN106825459 A CN 106825459A
- Authority
- CN
- China
- Prior art keywords
- movable stand
- mould
- liquid outlet
- support
- base
- 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.)
- Granted
Links
- 238000005266 casting Methods 0.000 title claims abstract description 25
- 229910010038 TiAl Inorganic materials 0.000 title claims abstract description 9
- 229910000765 intermetallic Inorganic materials 0.000 title claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 230000008018 melting Effects 0.000 claims abstract description 14
- 238000002844 melting Methods 0.000 claims abstract description 13
- 230000006698 induction Effects 0.000 claims abstract description 11
- 229920000742 Cotton Polymers 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000004321 preservation Methods 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000779 smoke Substances 0.000 claims abstract description 6
- 239000000919 ceramic Substances 0.000 claims abstract description 5
- 239000006260 foam Substances 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 3
- 229910052571 earthenware Inorganic materials 0.000 claims 1
- 241000219146 Gossypium Species 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 229910004349 Ti-Al Inorganic materials 0.000 description 3
- 229910004692 Ti—Al Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003026 anti-oxygenic effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000007592 spray painting technique Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- 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
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/15—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using vacuum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
The invention discloses a kind of vacuum casting device of TiAl intermetallic compound ingot, including vacuum induction melting furnace, crucible is provided with stove, crucible bottom is provided with the base sealed with crucible bottom, base center is provided with liquid outlet, foam ceramic filter is installed in liquid outlet, base has may move and pours set, the set upper surface of pouring is adjacent to base lower surface and can be moved left and right along base lower surface, pour set center and be provided with sprue gate, set is poured by movement, can make to pour set outer lining closing liquid outlet, or make sprue gate all or part section alignment liquid outlet；Pour set lower section and be provided with mould, mould outside is provided with movable stand, movable stand upper end connects first support, one layer of heat-preservation cotton of encirclement mould is fixed with first support, movable stand lower end connects second support, the cold shower nozzle of water smoke is connected with second support, the movable stand can be driven and moved in movable stand synchronization in process of setting with the upper shifting of solid liquid interface by cylinder.
Description
Technical field
The invention belongs to materials processing technology field, more particularly, to a kind of vacuum pressing and casting of TiAl intermetallic compound ingot
Device.
Background technology
Intermatallic Ti-Al compound density is small, and intensity is big, hardness is big, and resistance to elevated temperatures is strong, its corrosion resistance and antifriction
Wipe performance high, especially TiAl intermetallic compound is because having high specific strength, high specific stiffness, anti-corrosion, wear-resisting, high temperature resistant and excellent
The advantages of different antioxygenic property, the good candidates structural wood as fields such as contemporary aerospace industry, civilian industries
One of material, particularly has broad application prospects in blade of aviation engine field.3D printing, or increasing material manufacturing is used as near
A kind of quick shaping process risen over year, using successively powdering, laser or electron beam melt the mode being molded, and realize precision
The finishing shaping of part, and the defects such as the shrinkage cavity shrinkage porosity of casting process appearance are avoided, add as a kind of emerging material
Work means.
Powder used by current 3D printing, typically by vacuum pouring after melting into ingot casting, subsequent secondary smelting is simultaneously used
The mode for being atomized legal system powder is obtained, and in vacuum melting and casting process, melting is protected typically in vacuum induction melting furnace
Be poured into mould after temperature, due to needed after mould preheating experience be put into induction furnace, vacuumize, melting, the process, temperature such as cast
Can decline, while alloy pig center easily the problems such as shrinkage cavity, gross segregation occurs, cause ingot casting utilization rate to decline, and rear
In continuous cutting process, it is easy to adhere to dirt in shrinkage cavity, and is difficult to clean off, while Intermatallic Ti-Al compound in the liquid state anti-
Should be active very high, easily reacted with mould, powder processed is impacted, thus find a kind of reduction ingot casting shrinkage cavity and avoid
The casting device reacted with mould has great importance.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of vacuum casting device of TiAl intermetallic compound ingot.
The complete technical scheme of the present invention includes：
A kind of vacuum casting device of TiAl intermetallic compound ingot, including vacuum induction melting furnace, are provided with crucible in stove,
Crucible bottom is provided with the base sealed with crucible bottom, and base center is provided with liquid outlet, foam ceramic filter is provided with liquid outlet,
Base has may move and pours set, and the set upper surface of pouring is adjacent to base lower surface and can be moved left and right along base lower surface, pours
Set center is provided with sprue gate, and set is poured by movement, can make to pour set outer lining closing liquid outlet, or make sprue gate all or part
Section is directed at liquid outlet；
Pour set lower section and be provided with mould, the mould is composite die, including alumina outer and with to be poured into a mould ingot casting phase
With the internal layer of component；Mould outside is provided with movable stand, and movable stand connects cylinder by cylinder rod, and movable stand upper end connects first
Frame, is fixed with one layer of heat-preservation cotton of encirclement mould in first support, connection second support in movable stand lower end is connected in second support
There is the cold shower nozzle of water smoke, the movable stand can be driven in movable stand synchronization in process of setting with the upper shifting of solid liquid interface by cylinder
Move.
The present invention is relative to the advantage of prior art：
1. by way of additional heat-preservation cotton, the speed of mould cooling is reduced, reduce casting flaw incidence.
2. by the carrying out of process of setting, cylinder drives the mode moved on movable stand, is incubated mould upstream fast with bottom
Quickly cooling but, forms effective thermograde, makes the freezing interface of aluminium alloy flat, and feeding angle increase, upper metal liquid energy is enough filled
Divide feeding, prevent the generation of ingot casting central pipe shrinkage defect.
3. mould inside use with the internal layer to be poured into a mould ingot casting same composition, belonged to the titanium-aluminium alloy for avoiding high reaction activity
Between compound and mould reaction, improve purity.
Brief description of the drawings
Fig. 1 is present invention casting device structural representation used.
In figure：1- induction melting furnaces, 2- crucibles, 3- bases, 4- liquid outlets, 5- may move and pour set, 6- moulds, 7- outer layers,
8- internal layers, 9- movable stands, 10- first supports, 11- heat-preservation cottons, 12- second supports, the cold shower nozzle of 13- water smokes, 14- cylinders.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description.
The alloy compositions of selection are to include Al by atomic percent：39-40%, Cr：1.2-1.5-%, Nb：1.6-
1.8%, Si：0.05-0.11%, Mo：0.2-0.3%, V：2.2-2.8%, B：0.03-0.04%, La：0.02-0.04%, it is remaining
It is Ti to measure.
A kind of vacuum casting device of TiAl intermetallic compound ingot, including vacuum induction melting furnace, are provided with crucible in stove,
Crucible bottom is provided with the base sealed with crucible bottom, and base center is provided with liquid outlet, foam ceramic filter is provided with liquid outlet,
Base has may move and pours set, and the set upper surface of pouring is adjacent to base lower surface and can be moved left and right along base lower surface, pours
Set center is provided with sprue gate, and set is poured by movement, can make to pour set outer lining closing liquid outlet, or make sprue gate all or part
Section is directed at liquid outlet；
Pour set lower section and be provided with mould, the mould is composite die, including alumina outer and with to be poured into a mould ingot casting phase
With the internal layer of component；Mould outside is provided with movable stand, and movable stand connects cylinder by cylinder rod, and movable stand upper end connects first
Frame, is fixed with one layer of heat-preservation cotton of encirclement mould in first support, connection second support in movable stand lower end is connected in second support
There is the cold shower nozzle of water smoke, the movable stand can be driven in movable stand synchronization in process of setting with the upper shifting of solid liquid interface by cylinder
Move.
Casting method is：The raw material of the Intermatallic Ti-Al compound component of melting is wanted in selection, including titanium sponge, aluminium block with
Remaining trace element；It is put into the crucible 2 of vacuum induction melting furnace 1, crucible bottom is provided with the base 3 sealed with crucible bottom,
Base center is provided with the liquid outlet 4 of a diameter of 10cm, and the foam ceramic filter that thickness is 1cm is provided with liquid outlet, and base is divided into
Have may move and pour set 5, the set upper surface of pouring is adjacent to base lower surface and can be moved left and right along base lower surface, pours set center and sets
Have the sprue gate of a diameter of 10cm, set poured by movement, can make to pour set outer lining closing liquid outlet, or make sprue gate whole or
Partial cross section is directed at liquid outlet, so as to control the aperture of liquid outlet.
It is put into vacuum induction melting furnace after mould 6 is preheating into 600-800 DEG C, crucible lower section, mould therefor is compound
Mould, including alumina outer 7 and with the internal layer 8 to be poured into a mould ingot casting same composition, alumina outer thickness be 3-5cm, it is interior
Thickness degree is 0.2-0.5cm, mold height 50cm, die cavity diameter of section 10cm.
Mould outside is provided with movable stand 9, and movable stand connects cylinder 14, movable stand upper end connection first support by cylinder rod
10, one layer of heat-preservation cotton 11 of encirclement mould, movable stand lower end connection second support 12, in second support are fixed with first support
The cold shower nozzle 13 of water smoke is connected with,
Induction melting furnace is closed, sealing is evacuated down to 10-5-10-6Pa, opens molten when induction heating apparatus is heated
Alloy, heating power is 250-300KW, and smelting temperature is 1750-1830 DEG C, is promoted after 5-10min is incubated after being completely melt
It is removable to pour set, make the part or all of section alignment liquid outlet in sprue gate, molten metal outflow carries out bottom pouring type pouring.
The time of the cast full of mould is 120-180s, and after cast, with the carrying out of process of setting, cylinder drives and moves
Moved in moving frame, the heat-preservation cotton of its middle and upper part is incubated to mould, reduce mould to dispersed heat around, reduce cooling velocity, subtracted
The setting time of slow top aluminium alloy, the cold shower nozzle of water smoke of bottom promotes the aluminium alloy of bottom by cooling water spray painting to mould
Quick solidification, with the upper shifting of solid liquid interface, moves in movable stand synchronization, is incubated by top and bottom cools down, and makes aluminium alloy
Freezing interface is flat, and feeding angle increase, the enough abundant feeding of upper metal liquid energy prevents the product of ingot casting central pipe shrinkage defect
Raw, according to specific setting time, upper shifting speed is 20-25cm/min.
Solidification terminates rear natural cooling, and vacuum breaker takes out ingot casting.
The above, is only presently preferred embodiments of the present invention, and not the present invention is imposed any restrictions, every according to the present invention
Any simple modification, change and equivalent structure change that technical spirit is made to above example, still fall within skill of the present invention
In the protection domain of art scheme.
Claims (1)
1. a kind of vacuum casting device of TiAl intermetallic compound ingot, including vacuum induction melting furnace, is provided with crucible, earthenware in stove
Crucible bottom is provided with the base sealed with crucible bottom, and base center is provided with liquid outlet, foam ceramic filter, bottom are provided with liquid outlet
Seat has may move and pours set, and the set upper surface of pouring is adjacent to base lower surface and can be moved left and right along base lower surface, pours set
Center is provided with sprue gate, and set is poured by movement, can make to pour set outer lining closing liquid outlet, or make sprue gate completely or partially cut
In face of quasi- liquid outlet；
Pour set lower section and be provided with mould, the mould is composite die, including alumina outer and identical with to be poured into a mould ingot casting group
The internal layer for dividing；Mould outside is provided with movable stand, and movable stand connects cylinder by cylinder rod, and movable stand upper end connects first support,
One layer of heat-preservation cotton of encirclement mould is fixed with first support, connection second support in movable stand lower end is connected with second support
The cold shower nozzle of water smoke, the movable stand can be driven and moved in movable stand synchronization in process of setting with the upper shifting of solid liquid interface by cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611250119.XA CN106825459B (en) | 2016-12-29 | 2016-12-29 | A kind of vacuum casting device of TiAl intermetallic compound ingot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611250119.XA CN106825459B (en) | 2016-12-29 | 2016-12-29 | A kind of vacuum casting device of TiAl intermetallic compound ingot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106825459A true CN106825459A (en) | 2017-06-13 |
| CN106825459B CN106825459B (en) | 2019-02-19 |
Family
ID=59115289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611250119.XA Expired - Fee Related CN106825459B (en) | 2016-12-29 | 2016-12-29 | A kind of vacuum casting device of TiAl intermetallic compound ingot |
Country Status (1)
| Country | Link |
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| CN (1) | CN106825459B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB618824A (en) * | 1945-11-13 | 1949-02-28 | British Thomson Houston Co Ltd | Improvements in and relating to methods of casting electrodes for x-ray tubes and casting moulds therefor |
| CN1169124A (en) * | 1994-08-08 | 1997-12-31 | 西门子公司 | Method and device for directionally solidifying a melt liquid |
| CN1473679A (en) * | 2003-08-11 | 2004-02-11 | 西安交通大学 | Method for producing copper-chromium contact material by vacuum directional solidification and single side water cooling cast mold |
| RU2267380C1 (en) * | 2004-05-24 | 2006-01-10 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") | Apparatus for making castings with directed and monocrystalline structure |
| CN101844222A (en) * | 2010-05-28 | 2010-09-29 | 北京科技大学 | Controllable temperature gradient unidirectional solidification device and method |
| CN102139279A (en) * | 2010-12-15 | 2011-08-03 | 北京科技大学 | Method for producing oriented high-silicon steel cold-rolled sheet by using directional solidification plate blank |
-
2016
- 2016-12-29 CN CN201611250119.XA patent/CN106825459B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB618824A (en) * | 1945-11-13 | 1949-02-28 | British Thomson Houston Co Ltd | Improvements in and relating to methods of casting electrodes for x-ray tubes and casting moulds therefor |
| CN1169124A (en) * | 1994-08-08 | 1997-12-31 | 西门子公司 | Method and device for directionally solidifying a melt liquid |
| CN1473679A (en) * | 2003-08-11 | 2004-02-11 | 西安交通大学 | Method for producing copper-chromium contact material by vacuum directional solidification and single side water cooling cast mold |
| RU2267380C1 (en) * | 2004-05-24 | 2006-01-10 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") | Apparatus for making castings with directed and monocrystalline structure |
| CN101844222A (en) * | 2010-05-28 | 2010-09-29 | 北京科技大学 | Controllable temperature gradient unidirectional solidification device and method |
| CN102139279A (en) * | 2010-12-15 | 2011-08-03 | 北京科技大学 | Method for producing oriented high-silicon steel cold-rolled sheet by using directional solidification plate blank |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106825459B (en) | 2019-02-19 |
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Effective date of registration: 20190110 Address after: 518000 R&D Building, Shenglongxing Industrial Park, 22 Huanping Road, Pingdi Street, Longgang District, Shenzhen City, Guangdong Province, 11 and 12 floors Applicant after: SHENZHEN XINSHEN NEW MATERIAL TECHNOLOGY Co.,Ltd. Address before: 266000 2 Hui Ying Street, Jiaozhou economic and Technological Development Zone, Qingdao, Shandong Applicant before: QINGDAO R & D INSTITUTE, XIAN JIAOTONG University Applicant before: QINGDAO HANXING INTELLECTUAL PROPERTY OPERATION MANAGEMENT Co.,Ltd. |
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Effective date of registration: 20201126 Address after: Hongwei village, Xinwei Town, Huiyang District, Huizhou City, Guangdong Province Patentee after: HUIZHOU HEZHIHUA NEW MATERIAL Co.,Ltd. Address before: 518000 11, 12 floor, Sheng Longxing Industrial Park R & D building, 22 Ping Ping Road, Longgang District, Shenzhen, Guangdong. Patentee before: SHENZHEN XINSHEN NEW MATERIAL TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20190219 |