CN109579524A - A kind of high melt device based on intermediate frequency furnace - Google Patents
A kind of high melt device based on intermediate frequency furnace Download PDFInfo
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- CN109579524A CN109579524A CN201811401104.8A CN201811401104A CN109579524A CN 109579524 A CN109579524 A CN 109579524A CN 201811401104 A CN201811401104 A CN 201811401104A CN 109579524 A CN109579524 A CN 109579524A
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- graphite crucible
- graphite
- crucible
- rubber plug
- airtight rubber
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/04—Crucible or pot furnaces adapted for treating the charge in vacuum or special atmosphere
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/10—Crucibles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/10—Crucibles
- F27B14/12—Covers therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/14—Arrangements of heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B2014/0881—Two or more crucibles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/13—Smelting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
The present invention relates to the high melt devices based on intermediate frequency furnace, including for furnace body and to the induction furnace coil and quartz protecting tube of material heating；Protection pipe is placed between furnace body and induction furnace coil；Furnace body includes graphite crucible lid, graphite crucible, Graphite pad and alumina crucible；Graphite crucible lid is placed at the top of graphite crucible, and its center is provided with circular hole；Graphite pad is placed in graphite crucible, and is located at graphite crucible bottom, has the air inlet duct of circumferentially vertically hung scroll distribution on Graphite pad, and protective gas enters in graphite crucible through graphite crucible bottom through-hole and Graphite pad air slot；Alumina crucible is arranged in graphite crucible；The airtight rubber plug of the airtight rubber plug in top and lower part is separately positioned on the top and bottom of protection pipe, and the bottom of charge pipe passes through the airtight rubber plug in top and graphite crucible lid centre bore face, and protective gas air inlet pipe passes through the airtight rubber plug in lower part and is connected to through-hole.This high melt device can guarantee that fine granularity metalliferous material and non-metallic material sufficiently melt, and prevent melt oxidation in entire melting process.
Description
Technical field
The present invention relates to sintering smelting equipments, and in particular to a kind of high melt device based on intermediate frequency furnace.
Background technique
Induction furnace is a kind of one kind that melting or heat treatment are carried out using electromagnetic induction principle heating magnetic conduction material
Equipment, permeability magnetic material generate vortex under the action of alternating magnetic field that induction coil generates, and are vortexed under the action of the resistance of material
Heat can be generated, increases object temperature to carry out heating.Middle frequency induction furnace has the thermal efficiency high, and heating speed is fast, raw
It is clean to produce environment, small, the advantages that temperature is easy to adjust, and alloying element scaling loss is few is polluted, simultaneously because function composite by electromagnetic stirring is deposited
The ingredient and temperature of metal bath are uniform, are widely used in industrial production and scientific research.
When using induction furnace melting granular material, the magnetic flux due to passing through small particles material is few and causes in material
The induced electromotive force of the vortex of generation is low, and the resistance heat of generation is few.Meanwhile small particles material radiating rate in protective gas
Fastly.Cause induction furnace unsatisfactory to the Smelting Effect of granule material, be easy to appear fusing it is insufficient, temperature fluctuation is big, energy consumption
High problems.
Summary of the invention
In view of the above-mentioned problems existing in the prior art, the object of the present invention is to provide a kind of high melt device, the high temperature
Smelting apparatus can effectively solve fine granularity metalliferous material and non-metallic material melted in intermediate frequency furnace it is insufficient or
The problem of not melting.
To achieve the above object, the present invention adopts the following technical scheme: a kind of high melt dress based on intermediate frequency furnace
It sets, including furnace body and is the induction furnace coil of furnace body heating, further includes protection pipe and supplementary structure；
The protection pipe is arranged between furnace body and induction furnace coil, and the axial length of protection pipe is greater than the axial direction length of furnace body
Degree；
Furnace body: including graphite crucible lid, graphite crucible, Graphite pad and alumina crucible；
The graphite crucible is top opening, and bottom has the structure of through-hole；
The graphite crucible lid covers in the top opening of graphite crucible, has centre bore on graphite crucible lid；
The Graphite pad is arranged in graphite crucible, and is located at the bottom of graphite crucible, has venthole on Graphite pad, should
Venthole and the through-hole on graphite crucible bottom are coaxial, and protective gas is entered in graphite crucible by venthole and through-hole；
The alumina crucible is arranged in graphite crucible, alumina crucible and graphite crucible loose fit, the axis of alumina crucible
It is less than the axial length of graphite crucible to length；Supplementary structure: including the airtight rubber plug in top, the airtight rubber plug in lower part, charge pipe and
Air inlet pipe；
The top of protection pipe is arranged in the airtight rubber plug in top, and the bottom of charge pipe is passing through the airtight rubber plug in top and centre bore just
It is right；The bottom of protection pipe is arranged in the airtight rubber plug in lower part, and the top of air inlet pipe passes through the airtight rubber plug in lower part and is connected to through-hole.
As an improvement, the protection pipe is made of quartz.
As an improvement, the bottom of the graphite crucible lid has limit convex edge, the limit convex is along graphite crucible lid
Circumferential one encloses；
The outer diameter of the convex edge is less than the internal diameter of graphite crucible.
As an improvement, the Graphite pad is made of support section and vent portion；
The support section is entity structure made of graphite, and diameter is less than the internal diameter of graphite crucible；
The vent portion include centrally disposed venthole and along venthole extend to Graphite pad outer edge it is a plurality of into
Air drain, a plurality of air inlet duct are circumferentially uniformly arranged along Graphite pad.
As an improvement, being equipped with hollow and annular fire resisting in protection pipe between the airtight rubber plug in the bottom of graphite crucible and lower part
Brick.
Compared with the existing technology, the present invention at least has the advantages that
1, it is also heated simultaneously using graphite crucible when this high melt device, graphite crucible lid and Graphite pad, at this time oxygen
Change aluminium crucible by the heat radiation from all directions, ensure that sample fusing and temperature it is uniform.
2, an important inventive point of the invention is to have invented the structure of Graphite pad, and protective gas enters graphite earthenware
Before crucible, the diversion trench preheating on Graphite pad is first passed through, avoids cold protective gas from being directly entered inside graphite crucible and causes
Graphite crucible internal temperature big ups and downs are unable to control temperature parameter；It also avoids because protective gas leads to the cooling of sample
The phenomenon that sample can not melt；It prevents the protective gas of low temperature directly to wash away alumina crucible simultaneously and causes the huge temperature difference,
Cause alumina crucible uneven heating is even to rupture, substantially increases the safety of experiment.
3, another important inventive point of the invention is for Graphite pad and graphite crucible to be used in combination, graphite
Crucible, graphite crucible lid and Graphite pad are all good permeability magnetic materials, and meeting generates the vortex of very big intensity in alternating magnetic field,
In reach very high temperature.Their addition can greatly improve the utilization rate of alternating magnetic field, guarantee fine granularity metalliferous material
Mass energy can be saved while with non-metallic material melting.
4, Graphite pad and lower part are provided with being used cooperatively for the graphite crucible of through-hole so that protective gas can first pass through it is hot
Graphite pad on air slot, in protective gas remaining oxygen can and graphite reaction and consume (high pure protective gas valence
Lattice are expensive, and not can guarantee pure to pure, protect oxygen remaining in gas that can aoxidize melt, generate tremendous influence), it will not endanger
Evil metallurgical melt, the design can guarantee high-temperature fusant not oxidized pollution in entire melting process.
5, gas is protected to enter graphite crucible, graphite crucible lid and graphite at first in high melt device provided by the invention
Gasket forms the space of relative closure, then disperse filling due to the airtight rubber plug in top, quartz protecting tube and lower part gastight adhesive stopper
At independent enclosure space.Duplicate protection is formd to high-temperature fusant, even if requiring that midway is needed to use sampling for technique
Device, which samples melt, also can only destroy protection pipe and airtight rubber plug is formed by the protective atmosphere in enclosure space, graphite earthenware up and down
It is still persistently connected with protective gas inside crucible, excessive influence will not be caused to melt.
Detailed description of the invention
Fig. 1 is that the present invention is based on the structure principle charts of the high melt device of intermediate frequency furnace.
Fig. 2 is the three-dimensional structure diagram of Graphite pad.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the internal structure chart of furnace body.
Fig. 5 is the longitudinal section of graphite crucible lid.
Fig. 6 is the longitudinal section after graphite crucible and the assembly of graphite crucible lid.
In figure, charge pipe 1, the airtight rubber plug 2 in top, protection pipe 3, centre bore 4, graphite crucible lid 5, limit convex along 51,
Induction furnace coil 6, graphite crucible 7, alumina crucible 8, Graphite pad 10, through-hole 11, hollow and annular refractory brick 12, lower part are airtight
Rubber plug 13, air inlet pipe 14, support section 15, dike plate 16, air inlet duct 17, venthole 18.
Specific embodiment
Invention is further described in detail below.
In the description of the present invention, it is to be understood that, term " center ", " length ", " width ", "upper", "lower",
The orientation or positional relationship of the instructions such as "top", "bottom" "inner", "outside" be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for the description present invention and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side
Position is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
A kind of high melt device based on intermediate frequency furnace including furnace body and is the induction furnace coil 6 of furnace body heating,
It is characterized in that: further including protection pipe 3 and supplementary structure；
The protection pipe 3 is made of transparent quartz material, is arranged between furnace body and induction furnace coil 6, and the axis of protection pipe 3
It is greater than the axial length of furnace body to length；Furnace body is arranged in protection pipe 3, induction furnace coil 6 is arranged outside protection pipe, and
And position of the induction coil in protection pipe 3 is corresponding with furnace body, guarantees that furnace body can be heated.
When implementation, protection pipe 3 is made of quartz.
Furnace body: including graphite crucible lid 5, graphite crucible 7, Graphite pad 10 and alumina crucible 8；
The graphite crucible 7 is top opening, and bottom has the structure of through-hole 11；
Graphite crucible 7 is permeability magnetic material, is easy to generate vortex in alternating magnetic field and increase temperature, solves the low object of conductivity
Material infusible problem, graphite crucible 7, graphite crucible lid 5 and Graphite pad 10 in intermediate frequency furnace have collectively constituted phase
To closed space, protective gas enters directly into the space to 9 shape of high-temperature fusant in alumina crucible 8 by air inlet pipe 14
At good protection.
The graphite crucible lid 5 covers in the top opening of graphite crucible 7, has centre bore on graphite crucible lid 5
4；After the centre bore 4 can be used as plus the entrance of material, observation port can also be, for observing the molten of material in graphite crucible 7
Melt state.
The Graphite pad 10 is arranged in graphite crucible 7, and is located at the bottom of graphite crucible 7, has on Graphite pad 10
There is venthole 18, the venthole 18 and the through-hole 11 on 7 bottom of graphite crucible are coaxial, and protective gas passes through through-hole 11 and venthole
18 enter in graphite crucible 7；The air inlet pipe 14 is used to enter protective gas, guarantees the oxygen-free environment in graphite crucible 7, prevents height
Warm melt aoxidizes in melting process.
The alumina crucible 8 is arranged in graphite crucible 7, alumina crucible 8 and 7 loose fit of graphite crucible, aluminium oxide
The axial length of crucible 8 is less than the axial length of graphite crucible 7；The outer diameter of alumina crucible 8 is less than the internal diameter of graphite crucible 7.
Supplementary structure: including the airtight rubber plug 2 in top, the airtight rubber plug 13 in lower part, charge pipe 1 and air inlet pipe 14；
The top of protection pipe 3 is arranged in the airtight rubber plug 2 in top, and quartzy charge pipe 1 passes through the airtight rubber plug 2 in top and center
4 face of hole；The bottom of protection pipe 3 is arranged in the airtight rubber plug 13 in lower part, and air inlet pipe 14 passes through the airtight rubber plug 13 in lower part and leads to
Hole 11 is connected to.The use of the airtight rubber plug 13 of the airtight rubber plug 2 in top and lower part, so that protection pipe 3 and the airtight rubber plug 2 in top and lower part
A closed space is collectively formed in airtight rubber plug 13, and the protective gas being passed through to form guarantor in addition to diffusing inside graphite crucible 7
Shield is outer, can also spread in the airtight rubber plug 2 in top, the airtight rubber plug 13 in lower part and protection pipe 3 and be formed by enclosure space, in graphite
Protection is formed outside crucible, it is ensured that high-temperature fusant obtains good protection.
Charge pipe 1 is made of quartz or corundum, and the bottom of charge pipe 1 is passing through the airtight rubber plug 2 in top and centre bore 4 just
Right, i.e. charge pipe 1 and centre bore 4 is coaxial, when it is implemented, can punch on airtight 2 axle center of rubber plug in top, charge pipe 1 is worn
The hole is crossed, charge pipe 1 and the hole are tight fit, and charge pipe 1 is adjustable with a distance from charging and observation panel 4.Usually melting
It needs that first the material to melting is placed in alumina crucible 8 before beginning, experiment midway is realization such as the purpose of deoxidation, alloying
Such as deoxidier, alloying element metallurgical material can be added from charge pipe 1.
Centre bore 4 is located on the center of circle of graphite crucible lid 5, and the material that can be added for after in experimentation provides logical
Road can also observe the fusing situation of material in alumina crucible 8 by the centre bore 4, and experiment midway can if you need to sampling operation
To open the airtight rubber plug 2 in top and extract metallurgical melt sample, the operating process of midway sampling by centre bore 4 using sampler
In can only destroy the protective atmosphere in the enclosure space that protection pipe 3 and upper and lower gastight adhesive plug are formed, 7 bottom of graphite crucible is still held
Continuous to be connected with protective gas and be to provide lasting protection inside graphite crucible 7, sampling process can't cause excessive to melt
It influences.
3 upper and lower ends of protection pipe are respectively arranged with the airtight rubber plug 13 of the airtight rubber plug 2 in top and lower part, the airtight rubber plug 2 in top
It is used to guarantee the protective gas atmosphere inside protection pipe 3 with the airtight rubber plug 13 in lower part.In use, can be in the airtight rubber plug 13 in lower part
Axle center on punch, the top of air inlet pipe 14 passes through the airtight rubber plug 13 in lower part, is then passed through hollow and annular refractory brick 12 and through-hole 11
Through-hole tight fit on connection, air inlet pipe 14 and airtight 13 axle center of rubber plug in lower part.Protective gas is passed through graphite by air inlet pipe 14
In crucible 7.
In use, can be real if you need to melt progress measuring and controlling temp only need that infrared measurement of temperature is arranged at the airtight rubber plug in top
It is existing, measuring and controlling temp function can also be realized by corresponding aperture dress thermocouple on the airtight rubber plug in top and graphite crucible lid.
As an improvement, the bottom of the graphite crucible lid 5 has limit convex along 51, the limit convex is along 51 along graphite crucible
Lid 5 circumferential one encloses；The outer diameter of the convex edge 51 is less than the internal diameter of graphite crucible 7.
5 outer diameter of graphite crucible lid is equal to the outer diameter of graphite crucible 7, when graphite crucible lid 5 and graphite crucible 7 assemble,
Convex edge 51 is extend into graphite crucible 7, radial between graphite crucible lid 5 and graphite crucible 7 so as to effectively prevent
Relative movement.
As an improvement, the Graphite pad 10 is made of support section 15 and vent portion；The support section 15 is stone
Entity structure made of ink, 15 diameter of support section are less than the internal diameter of graphite crucible 7.
The vent portion includes centrally disposed venthole 18 and prolongs along venthole 18 to 10 outer edge of Graphite pad
The a plurality of air inlet duct 17 stretched, a plurality of air inlet duct 17 are circumferentially uniformly arranged along Graphite pad 10.10 support portion of Graphite pad
Divide 15 and vent portion composition, support section 15 and vent portion are an overall structure, are made of graphite, overall exterior shape
For circle, when production, a cylindrical body is first made by graphite, venthole 18 then is set in the center of cylindrical body, this is logical
Port 18 is blind hole, then carves multiple air channels 17, two neighboring air channel along the outer edge of blow vent 18 to Graphite pad
Protrusion between 17 is dike plate 16, and the depth of air channel 17 is consistent with the depth of venthole 18.Air channel 17 is along Graphite pad 10
Radial interface be it is trapezoidal, multiple air channels 17 are uniformly arranged along Graphite pad 10 is circumferential.In use, the support in Graphite pad 10
Towards in graphite crucible 7, alumina crucible 8 is placed on support section 15 for part 15, after protective gas enters air inlet 18, then
Enter in graphite crucible 7 into a plurality of air inlet duct 17, then by the gap between 7 inner wall of Graphite pad 10 and graphite crucible, is discharged
Air in graphite crucible 7 guarantees that molten metal is not oxidized in alumina crucible 8 as far as possible.
Hollow and annular refractory brick 12 is equipped in protection pipe 3 between the airtight rubber plug 13 in the bottom of graphite crucible 7 and lower part.
Hollow and annular refractory brick 12 forms a platform, furnace body is integrally placed on the platform, this kind of refractory brick is taken the photograph by heat-resisting 1800
The foam refractory brick of family name's degree is processed into, and annularly, is provided centrally with the through-hole for air inlet pipe 14.
The invention using flexible is changeable, and heating speed is fast, and melting product cleanliness is high, and application scenarios are more, and application field is wide.
It is suitble to colleges and universities, scientific research use is done by research institute etc.；The high high duty alloy product of production purity requirements is smelted suitable for enterprise；Also it fits
For heating the non-magnetic material of melting such as metallurgical protective slag and glass etc..
It should be understood that the diameter for the cylindrical body that induction furnace coil 6 surrounds is slightly larger than the diameter of protection pipe 3, protection pipe 3
Diameter be greater than the diameter of graphite crucible 7, the diameter of graphite crucible 7 is greater than the diameter of alumina crucible 8.
The assembling and application method of high melt device of the present invention: induction furnace coil 6 is pre-fixed under normal conditions
, induction furnace coil 6 has pre-fixed hoistable platform below, has on the hoistable platform and is used for what air inlet pipe 14 passed through
Air inlet pipe 14 is passed through through-hole on the airtight rubber plug 13 in lower part and hoistable platform, is then arranged hollow ring in air inlet pipe 14 by through-hole
Shape refractory brick 12, the top of air inlet pipe 14 are slightly above the top of hollow and annular refractory brick 12.
The installation of furnace body: by after the material of melting is packed into alumina crucible 8, the alumina crucible 8 equipped with material is put
Enter in graphite crucible 7, the bottom of alumina crucible 8 is placed on the support section 15 of Graphite pad 10, then uses graphite crucible
Lid 5 covers the opening at 7 top of graphite crucible.
After furnace body is installed, furnace body is placed on to the top of above-mentioned hollow and annular refractory brick 12, and air inlet pipe 14
Top is connected to the through-hole 11 on Graphite pad 10.It is adjusted at this time by the quantity and hoistable platform of hollow and annular refractory brick 12
The height of furnace body is overlapped furnace body with induction furnace coil 6 in the position of vertical direction in the position of vertical direction.
Then, successively furnace body and hollow and annular refractory brick 12 are entangled from top to down using protection pipe 3, finally makes protection pipe
The airtight sealing of rubber plug 13 in 3 bottom and lower part cooperates.
The airtight rubber plug 2 in top, is then arranged in the top of protection pipe 3 by the through-hole that charge pipe 1 is passed through to the airtight rubber plug 2 in top
In portion, the top of the airtight rubber plug 2 in top and protection pipe 3, which seals, to be cooperated.The height for adjusting charge pipe 1, so that the bottom of charge pipe 1
Centre bore 4 on slightly above graphite crucible lid 5, charge pipe 1 and graphite crucible lid 5 is coaxially disposed.
Before use, first pass through air inlet pipe 14 be passed through into graphite crucible 7 protective gas (predominantly inert gas, such as
Argon gas) air in graphite crucible 7 is discharged, protective gas first passes through air inlet pipe 14 and enters in through-hole 11, enters back into and through-hole 11
In coaxial and connection air inlet 18, enter back into a plurality of air inlet duct 17 being connected to air inlet 18, last protective gas passes through
Gap between 7 inner wall of 10 outer edge of Graphite pad and graphite crucible enters in graphite crucible 7, protects to high-temperature fusant 9.
In addition, the enclosure space that protective gas can diffuse protection pipe 3 simultaneously and upper and lower gastight adhesive plug is formed, in 7 outside shape of graphite crucible
At second protection, the energization of induction furnace coil 6 is begun to warm up after a period of time of ventilating.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (5)
1. a kind of high melt device based on intermediate frequency furnace including furnace body and is the induction furnace coil (6) of furnace body heating,
It is characterized in that: further including protection pipe (3) and supplementary structure；
The protection pipe (3) is arranged between furnace body and induction furnace coil (6), and the axial length of protection pipe (3) is greater than furnace body
Axial length；
Furnace body: including graphite crucible lid (5), graphite crucible (7), Graphite pad (10) and alumina crucible (8)；
The graphite crucible (7) is top opening, and bottom has the structure of through-hole (11)；
The graphite crucible lid (5) is covered in the top opening of graphite crucible (7), has center on graphite crucible lid (5)
Hole (4)；
Graphite pad (10) setting is located at the bottom of graphite crucible (7), Graphite pad (10) in graphite crucible (7)
Upper to have venthole (18), coaxially, protective gas passes through logical the through-hole (11) on the venthole (18) and graphite crucible (7) bottom
Stomata (18) and through-hole (11) enter in graphite crucible (7)；
Alumina crucible (8) setting is in graphite crucible (7), alumina crucible (8) and graphite crucible (7) loose fit, oxygen
The axial length for changing aluminium crucible (8) is less than the axial length of graphite crucible (7)；Supplementary structure: including the airtight rubber plug in top (2),
The airtight rubber plug in lower part (13), charge pipe (1) and air inlet pipe (14)；
The airtight rubber plug in top (2) setting passes through the airtight rubber plug in top in the top of protection pipe (3), the bottom of charge pipe (1)
(2) with centre bore (4) face；The airtight rubber plug in lower part (13) is arranged at the bottom of protection pipe (3), the top of air inlet pipe (14)
It is connected to across the airtight rubber plug in lower part (13) with through-hole (11).
2. high melt device as described in claim 1, which is characterized in that the protection pipe (3) is made of quartz.
3. high melt device as claimed in claim 1 or 2, which is characterized in that the bottom of the graphite crucible lid (5) has
Have limit convex edge (51), which encloses along (51) along graphite crucible lid (5) circumferential one；
The outer diameter of the convex edge (51) is less than the internal diameter of graphite crucible (7).
4. high melt device as claimed in claim 1 or 2, which is characterized in that the Graphite pad (10) is by support section
(15) it is constituted with vent portion；
The support section (15) is entity structure made of graphite, and diameter is less than the internal diameter of graphite crucible (7)；
The vent portion include centrally disposed venthole (18) and along venthole (18) to Graphite pad (10) outer edge
The a plurality of air inlet duct (17) extended, a plurality of air inlet duct (17) are circumferentially uniformly arranged along Graphite pad (10).
5. high melt device as claimed in claim 1 or 2, which is characterized in that bottom and lower part gas in graphite crucible (7)
Hollow and annular refractory brick (12) are equipped in protection pipe (3) between close rubber plug (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811401104.8A CN109579524B (en) | 2018-11-22 | 2018-11-22 | A kind of high melt device based on intermediate frequency furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811401104.8A CN109579524B (en) | 2018-11-22 | 2018-11-22 | A kind of high melt device based on intermediate frequency furnace |
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| CN109579524A true CN109579524A (en) | 2019-04-05 |
| CN109579524B CN109579524B (en) | 2019-10-01 |
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| CN204854335U (en) * | 2015-06-19 | 2015-12-09 | 中国工程物理研究院材料研究所 | A graphite crucible device for induction melting temperature measurement in melt -spun stove |
| CN205607133U (en) * | 2016-04-27 | 2016-09-28 | 贵阳产业技术研究院有限公司 | Induction melting furnace is aerifyd with vacuum in laboratory |
| CN206891165U (en) * | 2017-06-16 | 2018-01-16 | 中北大学 | A kind of vacuum melting furnace of melting magnesium alloy |
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2018
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|---|---|---|---|---|
| JPS6369796A (en) * | 1986-09-12 | 1988-03-29 | Alps Electric Co Ltd | Method for growing li2b4o7 single crystal |
| GB2269224A (en) * | 1992-07-29 | 1994-02-02 | Leybold Durferrit Gmbh | Induction furnace |
| CN204854335U (en) * | 2015-06-19 | 2015-12-09 | 中国工程物理研究院材料研究所 | A graphite crucible device for induction melting temperature measurement in melt -spun stove |
| CN205607133U (en) * | 2016-04-27 | 2016-09-28 | 贵阳产业技术研究院有限公司 | Induction melting furnace is aerifyd with vacuum in laboratory |
| CN206891165U (en) * | 2017-06-16 | 2018-01-16 | 中北大学 | A kind of vacuum melting furnace of melting magnesium alloy |
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