CN107737908A - A kind of vacuum casting high temperature alloy device - Google Patents
A kind of vacuum casting high temperature alloy device Download PDFInfo
- Publication number
- CN107737908A CN107737908A CN201710780627.7A CN201710780627A CN107737908A CN 107737908 A CN107737908 A CN 107737908A CN 201710780627 A CN201710780627 A CN 201710780627A CN 107737908 A CN107737908 A CN 107737908A
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- CN
- China
- Prior art keywords
- electromagnetic field
- field generator
- temperature alloy
- high temperature
- sandbox
- 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.)
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Classifications
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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
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/02—Use of electric or magnetic effects
-
- 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
Abstract
The invention discloses a kind of vacuum casting high temperature alloy device,Including vacuum intermediate-frequency sense melt furnace,Base,Sandbox,Shell,Electromagnetic field generator one,Electromagnetic field generator two,Filter,Dead head,During high-temperature alloy casting vacuum casting,Open electromagnetic field generator one immediately after being poured,When applying rotary electromagnetic field,Metal bath surface will produce larger vortex shape fluctuation,And electromagnetic field generator two is opened simultaneously,When applying steady direct current magnetic field,Liquid metal will be by an electromagnetic system power opposite with the direction of motion of molten metal,So as to which inhibitory action is played in the fluctuation to metal bath surface,Therefore the situation that can avoid deteriorating casting shrinkage cavity because molten metal liquid fluctuating is too big occurs,Sphere of action and effect of the rotary electromagnetic field in metal liquid solidification process can be greatly improved again,It finally can obtain tiny proportion of equiaxed grain and reach 99%,The high-quality high-temperature alloy casting that shrinkage cavity is obviously improved.
Description
Technical field
The present invention relates to vacuum pressing and casting field, specifically a kind of vacuum casting high temperature alloy device.
Background technology
It is fine uniform equiax crystal to obtain cast sturcture, there is excellent low-cycle fatigue in the working environment of middle low temperature
The cast superalloy parts such as the aero-engine low-pressure turbine blade and the industry gas turbine turbine disk of performance and mechanical property,
It is typically employed in the process of setting of high-temperature alloy vacuum founding and applies rotary electromagnetic field to high-temperature alloy casting solidified structure work
With this method is capable of solidified structure, the quantity for improving field trash and the distribution of fining high temperature alloy casting, mitigates dendritic segregation.
But this method by postponing electromagnetic agitation at the beginning of between ensure that it is stable that metal bath surface can be formed before electromagnetic agitation
Surface scull, avoid deteriorating the feeding condition of casting because metal bath surface fluctuation is too big.This causes rotary electromagnetic field in molten metal
Sphere of action and effect in process of setting is limited, and obtained high-temperature alloy casting always has one before electromagnetic field is applied
The thicker column crystal layer of the crystal grain of formation is just solidified, this is that a rotary electromagnetic field caused electromagnetism in metal bath stirs
The region that electromagnetic purification effect could not reach is mixed and stirred, its degree of purity and uniformity are poor.
The content of the invention
It is an object of the invention to provide a kind of vacuum casting high temperature alloy device, to solve to propose in above-mentioned background technology
The problem of.
To achieve the above object, the present invention provides following technical scheme：
A kind of vacuum casting high temperature alloy device, it is characterised in that including vacuum intermediate-frequency sense melt furnace, base, sandbox, shell,
Electromagnetic field generator one, electromagnetic field generator two, filter, dead head, the base are arranged on vacuum intermediate-frequency sense melt furnace bottom
Portion, and main center's line overlaps, the sandbox is placed on base, and main center's line overlaps, and the shell is built in sandbox
It is interior, molding sand and compacting are filled up between sandbox and shell, the electromagnetic field generator one is arranged on sandbox outer upper, the electromagnetism
Field generator two is arranged on sandbox outer lower portion, and the filter is arranged on shell upper port, and the dead head was arranged on
Filter circumferential edges.
As the further scheme of the present invention：The sandbox uses austenite stainless steel material.
As the further scheme of the present invention：The molding sand powder is preferably sized to 500 mesh.
As the further scheme of the present invention：The electromagnetic field generator one is occurred using industrial frequency AC rotary electromagnetic field
Device, electromagnetic field generator two use bar shaped steady direct current magnetic field generator.
As the further scheme of the present invention：The supply current of the electromagnetic field generator one is 60A alternating currents, electromagnetic field
The supply current of generator two is 290A steady direct current.
As the further scheme of the present invention：The filter is firmly connected with shell upper port by binding agent, institute
It is as follows by weight to state binder component：The parts by weight of polyvinyl butyral resin 20, the parts by weight of organic zirconium colloidal sol 65, the weight of water 15
Part.
As the further scheme of the present invention：The filter uses ceramic foam filter, and basic material is preferably oxygen
Change zirconium.
Compared with prior art, the beneficial effects of the invention are as follows：During high-temperature alloy casting vacuum casting, work as cast
After open electromagnetic field generator one immediately, when applying rotary electromagnetic field, metal bath surface will produce larger vortex shape ripple
It is dynamic, and electromagnetic field generator two is opened simultaneously, when applying steady direct current magnetic field, liquid metal will be by one and molten metal
The opposite electromagnetic system power of the direction of motion, so as to which inhibitory action is played in the fluctuation to metal bath surface, therefore can avoid because of gold
Category liquid liquid fluctuating situation that is too big and deteriorating casting shrinkage cavity occurs, and can greatly improve rotary electromagnetic field again and be coagulated in molten metal
Sphere of action and effect during Gu, it finally can obtain tiny proportion of equiaxed grain and reach the high-quality height that 99%, shrinkage cavity is obviously improved
Temperature alloy casting.
Brief description of the drawings
Fig. 1 is a kind of vacuum casting high temperature alloy schematic device.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, a kind of vacuum casting high temperature alloy device, including vacuum intermediate-frequency sense melt furnace 1, base 2, sandbox 3,
Shell 4, electromagnetic field generator 1, electromagnetic field generator 26, filter 7, dead head 8, the base 2 are arranged on vacuum intermediate-frequency
The bottom of sense melt furnace 1, and main center's line overlaps, the sandbox 3 is placed on base 2, and main center's line overlaps, the type
Shell 4 is built in sandbox 3, when molding sand fills up 1/5th of the space of sandbox 3 in sandbox 3, after compacting place shell 4, sandbox 3 with
Molding sand and compacting are filled up between shell 4, the electromagnetic field generator 1 is arranged on the outer upper of sandbox 3, and the electromagnetic field occurs
Device 26 is arranged on the outer lower portion of sandbox 3, and the filter 7 is arranged on the upper port of shell 4, and the dead head 8 is arranged on filtering
The circumferential edges of device 7.
The sandbox 3 uses austenite stainless steel material.
The molding sand powder is preferably sized to 500 mesh.
The electromagnetic field generator 1 uses industrial frequency AC rotating electromagnetic field generator, and electromagnetic field generator 26 uses bar
Shape steady direct current magnetic field generator.
The supply current of the electromagnetic field generator 1 is 60A alternating currents, and the supply current of electromagnetic field generator 26 is
290A steady direct current.
The filter 7 is firmly connected with the upper port of shell 4 by binding agent, and the binder component is by weight such as
Under：The parts by weight of polyvinyl butyral resin 20, the parts by weight of organic zirconium colloidal sol 65, the parts by weight of water 15, binder component is well mixed
Afterwards, binding agent is obtained.
The filter 7 uses ceramic foam filter, and basic material is preferably zirconium oxide.
The course of work and principle of vacuum casting high temperature alloy device in the present invention：
Vacuum intermediate-frequency sense melt furnace 1 is vacuumized, when its vacuum reaches 6 × 10-2 Pa, by melted high temperature alloy liquation
It is poured into by the dead head 8 with ceramic foam filter 7 in shell 4, when in molten metal liquid level and electromagnetic field generator 26
Stop cast when heart face is concordant, successively opening electromagnetic field generator 26, the power supply of electromagnetic field generator 1, after 60s, break successively
Electromagnetic field generator 26, the power supply of electromagnetic field generator 1 are opened, cast terminates；Wherein can be by adjusting electromagnetic field generator two
6th, the size for the electric current that the power supply of electromagnetic field generator 1 each inputs is controlled to the intensity of its caused electromagnetic field；
During high-temperature alloy casting vacuum casting, when applying rotary electromagnetic field immediately after being poured, metal bath surface will
When can produce larger vortex shape fluctuation, and apply steady direct current magnetic field simultaneously, liquid metal will be by one and metal
The opposite electromagnetic system power of the direction of motion of liquid, so as to which inhibitory action is played in the fluctuation to metal bath surface, therefore it can both avoid
The situation for deteriorating casting shrinkage cavity because molten metal liquid fluctuating is too big occurs, and can greatly improve rotary electromagnetic field again in metal
Sphere of action and effect in liquid process of setting, finally can obtain tiny proportion of equiaxed grain reach 99%, shrinkage cavity be obviously improved it is excellent
Matter high-temperature alloy casting.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (7)
1. a kind of vacuum casting high temperature alloy device, it is characterised in that including vacuum intermediate-frequency sense melt furnace（1）, base（2）, sand
Case（3）, shell（4）, electromagnetic field generator one（5）, electromagnetic field generator two（6）, filter（7）, dead head（8）, the bottom
Seat（2）It is arranged on vacuum intermediate-frequency sense melt furnace（1）Bottom, and main center's line overlaps, the sandbox（3）It is placed on base（2）
On, and main center's line overlaps, the shell（4）It is built in sandbox（3）It is interior, sandbox（3）With shell（4）Between fill up molding sand and
Compacting, the electromagnetic field generator one（5）It is arranged on sandbox（3）Outer upper, the electromagnetic field generator two（6）It is arranged on sand
Case（3）Outer lower portion, the filter（7）It is arranged on shell（4）Upper port, the dead head（8）It is arranged on filter（7）
Circumferential edges.
A kind of 2. vacuum casting high temperature alloy device according to claim 1, it is characterised in that the sandbox（3）Using
Austenite stainless steel material.
A kind of 3. vacuum casting high temperature alloy device according to claim 1, it is characterised in that the molding sand powder size
Preferably 500 mesh.
A kind of 4. vacuum casting high temperature alloy device according to claim 1, it is characterised in that the electromagnetic field generator
One（5）Using industrial frequency AC rotating electromagnetic field generator, electromagnetic field generator two（6）Occurred using bar shaped steady direct current magnetic field
Device.
A kind of 5. vacuum casting high temperature alloy device according to claim 1, it is characterised in that the electromagnetic field generator
One（5）Supply current be 60A alternating currents, electromagnetic field generator two（6）Supply current be 290A steady direct current.
A kind of 6. vacuum casting high temperature alloy device according to claim 1, it is characterised in that the filter（7）With
Shell（4）Upper port is firmly connected by binding agent, and the binder component is as follows by weight：Polyvinyl butyral resin 20
Parts by weight, the parts by weight of organic zirconium colloidal sol 65, the parts by weight of water 15.
A kind of 7. vacuum casting high temperature alloy device according to claim 1, it is characterised in that the filter（7）Adopt
With ceramic foam filter, basic material is preferably zirconium oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710780627.7A CN107737908A (en) | 2017-09-01 | 2017-09-01 | A kind of vacuum casting high temperature alloy device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710780627.7A CN107737908A (en) | 2017-09-01 | 2017-09-01 | A kind of vacuum casting high temperature alloy device |
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| Publication Number | Publication Date |
|---|---|
| CN107737908A true CN107737908A (en) | 2018-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710780627.7A Pending CN107737908A (en) | 2017-09-01 | 2017-09-01 | A kind of vacuum casting high temperature alloy device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482844A (en) * | 2019-01-02 | 2019-03-19 | 江苏大学 | Complex precise casting fine grain casting device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528002A (en) * | 2011-12-30 | 2012-07-04 | 洛阳理工学院 | Process and device for high-temperature alloy fine-grain casting with composite electromagnetic fields |
| CN102642013A (en) * | 2011-12-30 | 2012-08-22 | 洛阳理工学院 | Method and device for improving quality of high-temperature alloy master alloy ingot by applying compound electromagnetic field |
| CN203265599U (en) * | 2013-05-31 | 2013-11-06 | 上海派特贵金属有限公司 | Platinum rhodium precious metal casting water-cooling device with exertion of electromagnetic field |
-
2017
- 2017-09-01 CN CN201710780627.7A patent/CN107737908A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528002A (en) * | 2011-12-30 | 2012-07-04 | 洛阳理工学院 | Process and device for high-temperature alloy fine-grain casting with composite electromagnetic fields |
| CN102642013A (en) * | 2011-12-30 | 2012-08-22 | 洛阳理工学院 | Method and device for improving quality of high-temperature alloy master alloy ingot by applying compound electromagnetic field |
| CN203265599U (en) * | 2013-05-31 | 2013-11-06 | 上海派特贵金属有限公司 | Platinum rhodium precious metal casting water-cooling device with exertion of electromagnetic field |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482844A (en) * | 2019-01-02 | 2019-03-19 | 江苏大学 | Complex precise casting fine grain casting device and method |
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Application publication date: 20180227 |
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