CN207407680U - A kind of electromagnetic suspension water jacketed copper crucible - Google Patents
A kind of electromagnetic suspension water jacketed copper crucible Download PDFInfo
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- CN207407680U CN207407680U CN201721426223.XU CN201721426223U CN207407680U CN 207407680 U CN207407680 U CN 207407680U CN 201721426223 U CN201721426223 U CN 201721426223U CN 207407680 U CN207407680 U CN 207407680U
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- crucible
- copper
- melt
- copper mold
- electromagnetic suspension
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Abstract
The utility model discloses a kind of electromagnetic suspension water jacketed copper crucible, it is related to the smelting equipment field of metal or alloy.Including crucible body, induction coil, copper mold, compaction plug and rubber pad, induction coil is arranged on the copper mold intracavitary of crucible body around crucible body top, copper mold and passes through compaction plug and rubber pad is fixed and anti-gas-leak；Melt high-cleanness can be made to avoid melt contamination by the utility model smelting metal or alloy；Electromagnetic suspension water jacketed copper crucible prepares sample or bar can be to avoid sample or the unicity of bar cross section；Sample or bar crystal grain prepared by electromagnetic suspension water jacketed copper crucible is tiny, improves the mechanical property of material.
Description
Technical field
The utility model is related to the smelting equipments of metal or alloy, particularly a kind of electromagnetic suspension water jacketed copper crucible.
Background technology
Usually in atmospheric environment, the melting in ceramic crucible, such melting mode is made pottery for the melting of metal or alloy
Porcelain crucible is likely to contaminated melt, and certain difficulty is brought to the purified treatment of later stage melt；Melt may be used also in atmospheric environment
Oxidation and the scaling loss of bath composition can be caused, certain difficulty is brought for accurate Composition Control, in view of this, to reduce or keeping away
Exempt from melt contamination, developed the following technology.
Light suspension technology can also avoid melt contamination, and light suspension technology is by the use of halogen lamp as heat source, utilizes filament
The light that neighbouring concave mirror sends filament focuses on and a bit, and bar melts at this point, then with certain speed mover bar
Material, it becomes possible to form the sample of directional solidification, such sample is it is difficult to ensure that the glacing flatness of surfacing and sample.
The principle of electron beam directional solidification is the high energy electron bombardment Surface of Rod Bar of electron gun transmitting, and the kinetic energy of electronics converts
For thermal energy, make its small range zone melting in gun alignment, molten metal melt is in the effect of gravity and surface tension
It is lower to keep balance, during electron gun is moved to top from the bottom of bar, the Quench copper of melt one-way heat conduction to bottom,
So that directionally solidifying from bottom to top for melt, eventually forms sample.During electron beam directional solidification, melt
Balance is kept under gravity and surface tension effects, therefore specimen shape is simple, size is small, surface irregularity；Especially electron beam
Generation need high vacuum, then the element of high saturated vapour pressure is readily volatilized, be easy to cause ingredient inaccuracy.
Czochralski directional solidifications in water jacketed copper crucible, the principle of the technology is that induction coil generates electromagnetic field, electricity
Magnetic field transmission divides the water jacketed copper crucible gap of valve to act on the metal or alloy in copper crucible, and metal or alloy is in electromagnetic field effect
Under, generate inductive loop, inductive loop generates Joule heat in metal or alloy makes material melt to form melt, melt equipped with
Under the draw bar of seed crystal, the directional solidification growth of real material, this method can realize the free of contamination directional solidification of melt, but
It is during solidification, melt is constantly reduced, and the speed of growth is difficult to control.The specimen shape made is simple, surface irregularity.
Electromagnetic cold crucible directional solidification, the fusing principle of the technology are solidifying with the Czochralski orientations in water jacketed copper crucible
Solid fusing principle it is identical, but the raw material of Czochralski directional solidifications is first in the crucible, and electromagnetic cold crucible orientation is solidifying
Solid raw material for suspension charge bar, when the melt in crucible reaches a certain amount of, allow fuel rod and pumping rod with certain rate
It is moved downward than (ensureing that the melt volume in crucible is constant).Under the traction of pumping rod, sample immerses Ga-In liquid billons
In, under the pressure cooling effect of liquid alloy, unidirectional heat dissipation is realized, so as to achieve the purpose that directional solidification.It is prepared by this method
During sample, there is high-temperature fusant in one end of sample, and the other end has the liquid alloy of cooling, and temperature gradient is larger, is given birth in fair speed
When long, melt easily extinguishes, and causes the failure of an experiment, and liquid alloy is likely to pollution sample.The melt that above method obtains
More clean, the method for crystal grain refinement is including as follows.
First, deformation process method, this method be using the plastic deformation process of material and the recrystallization of material or phase transformation come
Control the size of crystal grain.This method will could be implemented after sample shaping.
2nd, physical field refinement technology, this method directly act on melt using physical field, are controlled during solidification solidifying
Gu tissue, crystal grain thinning.The technology includes three aspects to the processing of melt：1) pulsed current annealing；2) magnetic field is handled；3) surpass
Sonicated.
3rd, mechanical refinement method, this method are to promote the formation of nucleus in melt using mechanical agitation or effect of vibration,
Dendrite is broken, and increases nucleus, so as to achieve the purpose that refinement.
4th, grain refiner method, this method are to add in grain refiner to melt, and melt is different after grain refiner adds in
Matter forming core number increases, so as to achieve the purpose that crystal grain thinning.
5th, modifying-refining method, Metamorphism treatment are to add in alterant in the melt, by alterant during solidification
The variation of pattern or performance and influence the process of crystal growth.
6th, method for quick cooling, theory and practice research show to be quickly cooled down to improve forming core rate and inhibit atom and expand
It dissipates.The raising of forming core rate represents that the nucleus number formed in the unit interval is more；Inhibit atoms permeating, represent the diffusion of atom
Rate is slack-off, and crystal grain is grown up slack-off in the unit interval, this means that the crystal grain formed after solidification is tiny.Electromagnetic suspension water-cooled copper
Crucible is equipped with copper mold, and for melt under the pressure cooling effect of copper mold, solidification forms the tiny tissue of crystal grain.According to Hall-Petch
Formula, the tiny material of crystal grain, mechanical property are more excellent.
The content of the invention
The goal of the invention of the utility model is, in view of the above-mentioned problems, providing a kind of electromagnetic suspension water jacketed copper crucible, to pass through electricity
Magnetic suspension water jacketed copper crucible smelting metal or alloy can make melt high-cleanness to avoid melt contamination；Electromagnetic suspension water-cooled copper earthenware
Crucible prepares sample or bar can be to avoid sample or the unicity of bar cross section；Sample prepared by electromagnetic suspension water jacketed copper crucible
Or bar crystal grain is tiny, improves the mechanical property of material.
In order to achieve the above objectives, technical solution is used by the utility model：Including
Crucible body, shape is cylindrical, and its upper part divides valve including several by the crucible of circle distribution, and crucible divides valve group
Into the melt cavity of upward opening；Crucible has valve seam between dividing valve, and the valve seam is filled with heat safe insulating materials；Crucible sheet
Body lower part is provided with downwardly open cylindrical, copper die cavity, and cylindrical, copper die cavity lower part is provided with internal thread；Crucible body cylinder
Several water cooling through holes for being used to lead to up and down are provided in wall, two adjacent water cooling through hole tops connect and lower end connects respectively
Water inlet pipe and outlet pipe；Melt cavity bottom is provided with a melt through hole, melt through hole connection copper mold chamber and melt cavity；
Induction coil is looped around and several divides valve outer surface by the crucible of circle distribution；
Copper mold, in the cylindrical, copper die cavity of crucible body, the semicolumn mould that is fitted closely including two, in copper mold
The sample aperture being coaxial therewith is provided with, the sample aperture top is connected with melt through hole, sample aperture lower end face closure；Copper mold
Bottom is provided with the anti-blocking chamber being coaxial therewith, and anti-blocking chamber connect with sample aperture by several pumping curved holes, the curved hole of the pumping and
The sample aperture lower sides connection；And
Compaction plug, it is cylindrical, it is arranged below copper mold, compaction plug upper surface is provided with and copper mold chamber lower internal thread
The external screw thread boss to match is coaxially arranged with inside compaction plug and is used to logical aspirating hole up and down.
Based on said structure：Heat safe insulating materials is filled between valve seam, alternating electromagnetic field can be allowed to enter through valve seam
In crucible, raw material and melt are acted on, vortex can be generated in entire crucible cross section to avoid electromagnetic field.Melt through hole is molten
Body enters the unique passage of copper mold.Each crucible divides valve all water cooling through holes to cool down, and cooling water is from inlet opening into then from water outlet
Hole is flowed out, and crucible forces cooling copper crucible during operation, takes away the heat for passing to copper crucible of melt, avoids copper crucible temperature
High or fusing is spent, while water cooling can take away copper mold heat, make sample rapid shaping.When vacuumizing, the gas of sample aperture leads to
It crosses and is evacuated curved hole and is pumped.Being evacuated curved hole and anti-blocking chamber can prevent melt to be directly entered the aspirating hole of compaction plug, cause to be evacuated
Hole plug；Aspirating hole is connected with air exhauster.
During entire crucible work, raw material is placed in melt cavity, and induction coil generates alternating electromagnetic field and acted on through valve seam
In raw material, raw material generates inductive loop, generates Joule heat, and so as to which melt raw material forms melt, melt is in inert gas shielding
Micro-positive pressure environment in, under the action of electromagnetic push, melt is in suspended state or is in melt cavity and soft connect melt
The state of touching, electromagnetic stirring force are uniform by bath composition.After keeping the temperature a period of time, the air exhauster being connected with aspirating hole starts pumping very
Sky, and the power supply of induction coil is closed, stop heating, melt is inhaled into the sample aperture of copper mold by melt through hole in melt cavity
In, under the pressure cooling effect of copper mold, solidification forms the tiny sample of tissue, crystal grain.After cooling, compaction plug is unscrewed, is taken out
Copper mold, then separated copper mold, takes out sample.
Further, the crucible divides valve top to be wound using insulating tape.
Advantageous effect using above-mentioned further scheme is：After valve seam fills in high temperature insulating material, with insulating cement high
Warm insulating materials is enclosed in valve seam, then winds crucible top with insulating tape, can increase the radial strength of crucible.
Further, the crucible body lower face is provided with gasket with the outer faying face of the compaction plug.
Advantageous effect using above-mentioned further scheme is：When can prevent pumping with exhaust blower, crucible body lower face
With faying face gas leakage outside compaction plug.
Further, the cross-sectional shape of sample aperture is circular or rectangle.
Advantageous effect using above-mentioned further scheme is：By the sample aperture of different cross section, different cut can be produced
The sample in face.
Further, the copper mold outer diameter is identical with the cylindrical, copper die cavity internal diameter, the copper mold length and the copper
Die cavity height is identical.
Advantageous effect using above-mentioned further scheme is：Copper mold can combine closely in copper mold intracavitary, and sample aperture side is split
Head is not in gap, and sample side wall will not generate redundancy.
Further, the melt cavity bottom is provided with to recessed arc.
Advantageous effect using above-mentioned further scheme is：Melt is formed in bottom to be assembled, and is easily absorbed style hole
It is interior.
Due to the adoption of the above technical scheme, the utility model has the advantages that：
1. the utility model electromagnetic suspension water jacketed copper crucible smelting metal or alloy can pass through electromagnetism to avoid melt contamination
The melt that the melting of suspension water jacketed copper crucible is formed has high cleanliness factor.
2. the Czochralski in the utility model relatively light suspension method, electron beam directional solidification method and water jacketed copper crucible
Bar prepared by directional solidification, cross-sectional shape is single, is approximately cylindrical substantially, and prepared by electromagnetic suspension water jacketed copper crucible
Bar can prepare bar of the cross section for circular, rectangle or square etc. according to the shape of copper mold.
3. the Czochralski in the utility model relatively light suspension method, electron beam directional solidification method and water jacketed copper crucible
Surface of Rod Bar prepared by directional solidification lacks constraint, the specimen surface out-of-flatness of preparation, and electromagnetic suspension water jacketed copper crucible is molten
Body shapes in copper mold, and copper mold has effect of contraction to bath surface, can prepare the bar of surfacing.
4. the melt of the utility model electromagnetic suspension water jacketed copper crucible solidifies formation, shape under the pressure cooling effect of copper mold
Into solidified structure it is tiny, excellent in mechanical performance, this is not available for common forging type
Description of the drawings
Fig. 1 is the utility model section view.
Fig. 2 is the utility model crucible body top view.
Fig. 3 is the utility model semicolumn mould front view.
Fig. 4 is the utility model compaction plug sectional view
In attached drawing, 1- crucible bodies, 2- induction coils, 3- copper molds, 4- compaction plugs, 5- rubber pads, 6- insulating tapes, 7- melt
Body, 11- crucibles divide valve, 12- melts cavity, 13- copper molds chamber, 14- internal threads, 15- water coolings through hole, 16- melts through hole, 31- half
Cylinder mold, 32- sample apertures, the anti-blocking chambers of 33-, 34- are evacuated curved hole, 41- external screw threads boss, 42- aspirating holes.
Specific embodiment
The specific implementation of invention is further illustrated below in conjunction with attached drawing.
As shown in Figure 1, a kind of electromagnetic suspension water jacketed copper crucible, including crucible body 1, induction coil 2, copper mold 3, compaction plug
4th, rubber pad 5 and insulating tape 6, induction coil 2 are arranged on the copper mold chamber 13 of crucible body 1 around 1 top of crucible body, copper mold 3
Interior and pass through compaction plug 4 and rubber pad 5 is fixed and anti-gas-leak, the crucible in crucible body 1 divides 11 top of valve to be twined using insulating tape 6
Around.
As shown in Fig. 2, 1 shape of crucible body is cylindrical, its upper part divides valve 11 including eight valves by the crucible of circle distribution,
Crucible divides the melt cavity 12 that valve 11 forms upward opening；Crucible has valve seam between dividing valve 11, and the valve seam is filled with high temperature resistant
Insulating materials；1 lower part of crucible body is provided with downwardly open cylindrical, copper die cavity 13, and 13 lower part of cylindrical, copper die cavity is set
There is internal thread 14；About eight groups are provided in 1 cylindrical wall of crucible body and is used to logical water cooling through hole 15, adjacent two water cooling through holes
15 tops connect and lower end is connected respectively with the outlet pipe of water inlet pipe；12 bottom of melt cavity is provided with a melt through hole 16, melts
Body through hole 16 connects copper mold chamber 13 and melt cavity 12；12 bottom of melt cavity is provided with to recessed arc.
As shown in figure 3, copper mold 3 includes two semicolumn moulds 31 fitted closely, the examination being coaxial therewith is provided in copper mold 3
Sample hole 32,32 top of sample aperture are connected with melt through hole 16, the 32 lower end face closure of sample aperture；3 bottom of copper mold is set
There is the anti-blocking chamber 33 being coaxial therewith, anti-blocking chamber 33 is connected with sample aperture 32 by two curved holes 34 of pumping, the curved hole 34 of pumping
It is connected with 32 lower sides of sample aperture；3 outer diameter of copper mold is identical with 13 internal diameter of cylindrical, copper die cavity, the copper mold
3 length are identical with 13 height of copper mold chamber；And
Cylindrical such as Fig. 4 compaction plugs, 4 upper surface of compaction plug is provided with and 13 lower internal thread of copper mold chamber, 14 phase
The external screw thread boss 41 matched somebody with somebody is coaxially arranged with inside compaction plug 4 and is used to logical aspirating hole 42 up and down.
During work, raw material is placed in melt cavity 12, and induction coil 2 generates alternating electromagnetic field and acts on original through valve seam
Material, raw material generate inductive loop, generate Joule heat, and so as to which melt raw material forms melt 7, melt 7 is in inert gas shielding
In micro-positive pressure environment, under the action of electromagnetic push, melt 7 is in suspended state or is in soft with melt cavity 12 melt 7
Contact condition, electromagnetic stirring force are uniform by 7 ingredient of melt.After keeping the temperature a period of time, the air exhauster being connected with aspirating hole 42 starts
It vacuumizes, and closes the power supply of induction coil 2, stop heating, melt 7 leads to 16 holes by melt and is inhaled into copper in melt cavity 12
In the sample aperture 32 of mould 3, cooling water enters from 15 water inlet of water cooling through hole, and water outlet outflow forces cooling copper mold 3, makes sample
The solidification of melt 7 in hole 32 forms the tiny sample of tissue, crystal grain.After cooling, compaction plug 4 is unscrewed, takes out copper mold 3, Ran Houfen
Copper mold 3 is opened, takes out sample.
Above description is the detailed description for the preferable possible embodiments of the utility model, but embodiment is not limited to
The patent claim of the utility model, the equal variation or modification completed under the technical spirit suggested by all the utility model
Change, should all belong to the utility model and cover the scope of the claims.
Claims (6)
1. a kind of electromagnetic suspension water jacketed copper crucible, it is characterised in that：Including
Crucible body, shape is cylindrical, its upper part include it is several divide valve by the crucible of circle distribution, crucible divide valve form to
The melt cavity of upper opening；Crucible has valve seam between dividing valve, and the valve seam is filled with heat safe insulating materials；Under crucible body
Portion is provided with downwardly open cylindrical, copper die cavity, and cylindrical, copper die cavity lower part is provided with internal thread；In crucible body cylindrical wall
Several water cooling through holes for being used to lead to up and down are provided with, two adjacent water cooling through hole tops connect and lower end connects water inlet respectively
Pipe and outlet pipe；Melt cavity bottom is provided with a melt through hole, melt through hole connection copper mold chamber and melt cavity；
Induction coil is looped around and several divides valve outer surface by the crucible of circle distribution；
Copper mold, in the cylindrical, copper die cavity of crucible body, the semicolumn mould that is fitted closely including two is set in copper mold
There is the sample aperture being coaxial therewith, the sample aperture top is connected with melt through hole, sample aperture lower end face closure；Copper mold bottom
Be provided with the anti-blocking chamber being coaxial therewith, anti-blocking chamber connect with sample aperture by several pumping curved holes, it is described be evacuated curved hole with it is described
Sample aperture lower sides connect；And
Compaction plug, it is cylindrical, it is arranged below copper mold, compaction plug upper surface is provided with and copper mold chamber lower internal thread phase
The external screw thread boss matched somebody with somebody is coaxially arranged with inside compaction plug and is used to logical aspirating hole up and down.
2. a kind of electromagnetic suspension water jacketed copper crucible according to claim 1, it is characterised in that：The crucible divides valve top to adopt
It is wound with insulating tape.
3. a kind of electromagnetic suspension water jacketed copper crucible according to claim 1, it is characterised in that：The crucible body lower face
Faying face outside the compaction plug is provided with gasket.
4. a kind of electromagnetic suspension water jacketed copper crucible according to claim 1, it is characterised in that：The cross-sectional shape of sample aperture
For circular or rectangle.
5. a kind of electromagnetic suspension water jacketed copper crucible according to claim 1, it is characterised in that：The copper mold outer diameter and described
Cylindrical, copper die cavity internal diameter is identical, and the copper mold length is identical with the copper mold chamber height.
6. a kind of electromagnetic suspension water jacketed copper crucible according to claim 1, it is characterised in that：The melt cavity bottom is set
It is equipped with to recessed arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721426223.XU CN207407680U (en) | 2017-10-31 | 2017-10-31 | A kind of electromagnetic suspension water jacketed copper crucible |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721426223.XU CN207407680U (en) | 2017-10-31 | 2017-10-31 | A kind of electromagnetic suspension water jacketed copper crucible |
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| Publication Number | Publication Date |
|---|---|
| CN207407680U true CN207407680U (en) | 2018-05-25 |
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ID=62409302
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721426223.XU Expired - Fee Related CN207407680U (en) | 2017-10-31 | 2017-10-31 | A kind of electromagnetic suspension water jacketed copper crucible |
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| CN (1) | CN207407680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677126A (en) * | 2017-10-31 | 2018-02-09 | 百色学院 | A kind of electromagnetic suspension water jacketed copper crucible |
-
2017
- 2017-10-31 CN CN201721426223.XU patent/CN207407680U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677126A (en) * | 2017-10-31 | 2018-02-09 | 百色学院 | A kind of electromagnetic suspension water jacketed copper crucible |
| CN107677126B (en) * | 2017-10-31 | 2023-09-19 | 百色学院 | Electromagnetic suspension water-cooled copper crucible |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180525 Termination date: 20201031 |
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| CF01 | Termination of patent right due to non-payment of annual fee |