CN206321043U - A kind of vacuum arc furnace ignition of ceramic crucible processing - Google Patents
A kind of vacuum arc furnace ignition of ceramic crucible processing Download PDFInfo
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- CN206321043U CN206321043U CN201621347958.9U CN201621347958U CN206321043U CN 206321043 U CN206321043 U CN 206321043U CN 201621347958 U CN201621347958 U CN 201621347958U CN 206321043 U CN206321043 U CN 206321043U
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- electrode
- heater
- crucible
- arc furnace
- vacuum
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- Crucibles And Fluidized-Bed Furnaces (AREA)
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Abstract
The utility model discloses a kind of vacuum arc furnace ignition of ceramic crucible processing, including a body of heater, Top electrode, bottom electrode, electrode lifting mechanism, electrode stem, vacuum system and power-supply system, wherein, it is connected at the top of Top electrode with electrode stem coaxial line, the through hole passed through for electrode stem is offered at the top of body of heater, the electrode lifting mechanism being connected with electrode stem is set on body of heater, Top electrode above and below bottom electrode with being correspondingly arranged, bottom electrode can be moved up and down and removed, crucible is provided with below bottom electrode, electric arc is set in crucible, crucible is fixed by fixing device with inboard wall of furnace body, forming graphite mould is set below crucible, the forming graphite mould left and right sides is provided with holding handle；Connected on the left of body of heater with vacuum system and between the two provided with control valve；Extraction valve is provided with the right side of body of heater.Can prevent pernicious gas again with metal compound, reduction alloy in objectionable impurities content, it is to avoid the generation of sand holes and shrinkage cavity, it is ensured that product quality.
Description
Technical field
The utility model is related to EAF Technology field, refers specifically to a kind of vacuum arc furnace ignition of ceramic crucible processing.
Background technology
Crucible is, with refractory material made vessel or melting tank, when there is solid to need to heat with big fire, must just to make
Use crucible.Crucible can be divided into by the raw material of making：Graphite crucible, fused quartz ceramic crucible, porcelain crucible, silicon carbide crucible,
Platinum crucible, nickel crucible.Because high-purity vitreous silica has, fine structure, thermal conductivity are low, thermal coefficient of expansion is small, manufactured goods size
The features such as high precision, high temperature are indeformable, good stability, good electrical property, chemerosiveness resistent are good, therefore in glass post-processing row
It is used widely in the fields such as industry, metallurgical industry, electronics industry, chemical engineering industry, Aero-Space.
Ceramic crucible to quartz in process, it is necessary to be heated, and after after quartzy all thawings, fused quartz melt is cooled down
It is stripped after to normal temperature, obtains the formed body of crucible.Fused quartz melt is to during regelation, if pernicious gas and silicification
Close, add the content of objectionable impurities in quartz, be easily caused the generation of sand holes and shrinkage cavity, therefore be the hair for avoiding this phenomenon
It is raw, in silica melting process, it is desirable to provide a kind of vacuum environment is heated to quartz, it is therefore desirable to which a kind of vacuum arc furnace ignition is used
In processing ceramic crucible, it is ensured that the final product quality of ceramic crucible processing.
Utility model content
Utility model purpose：For it is above-mentioned it is of the prior art exist the problem of and deficiency, this reality
It is to provide a kind of vacuum arc furnace ignition of ceramic crucible processing with new purpose.
Technical scheme：To reach above-mentioned purpose, a kind of vacuum arc of ceramic crucible processing described in the utility model
Stove, including body of heater, Top electrode, bottom electrode, electrode lifting mechanism, electrode stem, vacuum system and power-supply system, wherein, institute
State and be connected at the top of Top electrode with electrode stem, offer and set on the through hole passed through for electrode stem, the body of heater at the top of body of heater
Be equipped with the electrode lifting mechanism being connected with electrode stem, the Top electrode with being correspondingly arranged above and below bottom electrode, the bottom electrode can on
Lower movement is simultaneously removed, and is provided with below the bottom electrode in crucible, the crucible and is set electric arc, the crucible by fixing device with
Inboard wall of furnace body is fixed, and forming graphite mould is provided with below the crucible, the forming graphite mould left and right sides is provided with clamping hand
Handle；The control for connecting and whether being connected with body of heater provided with control vacuum system between the two with vacuum system on the left of the body of heater
Valve；Be provided with extraction valve on the right side of the body of heater, the power-supply system respectively with vacuum system, electrode stem, rise fall of electrodes system, upper electricity
Pole and bottom electrode electrical connection.
Further, the vacuum system uses mechanical pump, and the mechanical pump is provided with electromagnetic release valve.Electromagnetic release valve
Design it is possible to prevente effectively from have a power failure after return oil.
Further, the body of heater uses Double water-cooled structure, and internal layer is made up of stainless steel, and outer layer is steel plate welding
Into.Body of heater uses Double water-cooled structure, and cold water, the temperature on reduction body of heater surface can be added into double-layer structure.
Further, the body of heater front, which is provided with an observation window, the observation window, is equipped with blackish green eyeshield glass.See
Melting state of the window designed for observation furnace interior quartz is examined, blackish green eyeshield glass plays a part of protecting eyes.
Further, the power-supply system includes silicon controlled rectifier module, strong current transformer and current regulator.
Further, the electrode stem is cylinder, and is vertically arranged, and vertical state can be kept to move integrally.
Further, the side door taken out for forming graphite mould is provided with the right side of the bottom of furnace body, the side door surrounding is set
There is sealing strip.Just forming graphite mould is hauled out out of body of heater for the design of side door, is picked and placeed very convenient.
Further, hang and cooling fan is provided with the right side of area provided with area is hung on the right side of the side door.By forming graphite mould
It is placed into after hauling-out and hangs area, the cooling fan on the right side of area to be hung can accelerates cooling quartzy in forming graphite mould and coagulate
Knot.
Above-mentioned technical proposal can be seen that the beneficial effects of the utility model：
The vacuum arc furnace ignition of a kind of ceramic crucible processing described in the utility model so that high vacuum shape is kept in stove
State, quartz gradually melts in the presence of electric arc, and regelation can further remove the pernicious gas in quartz, prevent
Evil gas again with metal compound, reduce the content of objectionable impurities in alloy, it is to avoid the generation of sand holes and shrinkage cavity, it is ensured that product
Quality.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1- bodies of heater, 2 Top electrodes, 3 bottom electrodes, 4- electrode lifting mechanisms, 5- electrode stems, 6- vacuum systems, 7- earthenwares
Crucible, 9- forming graphites mould, 10- holding handles, 11- extraction valves, 12- side doors, 13- hang area, 14- cooling fans.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the utility model is further elucidated.
Embodiment
A kind of vacuum arc furnace ignition of ceramic crucible processing as shown in Figure 1, including body of heater 1, Top electrode 2, a lower electricity
Pole 3, electrode lifting mechanism 4, electrode stem 5, vacuum system 6 and power-supply system, wherein, the top of Top electrode 2 is matched somebody with somebody with electrode stem 5
Connection is closed, the top of body of heater 1, which is offered, be provided with what is be connected with electrode stem 5 on the through hole passed through for electrode stem 5, the body of heater 1
Electrode lifting mechanism 4, the Top electrode 2 is correspondingly arranged with bottom electrode about 3, and the bottom electrode 3 can be moved up and down and removed, institute
State to be provided with crucible 7, the crucible 7 below bottom electrode 3 and electric arc is set, the crucible 7 passes through fixing device 8 and the inwall of body of heater 1
Fixed, the lower section of crucible 7 is provided with forming graphite mould 9, and the left and right sides of forming graphite mould 9 is provided with holding handle 10；
The control whether left side of body of heater 1 connects with vacuum system 6 and connected with body of heater 1 provided with control vacuum system 6 between the two
Valve；The right side of the body of heater 1 is provided with extraction valve 11, the power-supply system respectively with vacuum system 6, electrode stem 5, rise fall of electrodes system
4th, Top electrode 2 and bottom electrode 3 are electrically connected.
Vacuum system 6 described in the present embodiment uses mechanical pump, and the mechanical pump is provided with electromagnetic release valve.
Body of heater 1 described in the present embodiment uses Double water-cooled structure, and internal layer is made up of stainless steel, and outer layer is steel plate welding
Into.
The front of body of heater 1 described in the present embodiment, which is provided with an observation window, the observation window, is equipped with blackish green eyeshield glass.
Power-supply system described in the present embodiment includes silicon controlled rectifier module, strong current transformer and current regulator.
Electrode stem 5 described in the present embodiment is cylinder, and is vertically arranged, and vertical state can be kept to move integrally.
The bottom right of body of heater 1 described in the present embodiment is provided with the side door 12 taken out for forming graphite mould, the side door 12
It is formed around sealing strip.
Provided with area 13 is hung on the right side of side door 12 described in the present embodiment, hang the right side of area 13 and be provided with cooling fan 14.
The use of the operation principle of vacuum arc furnace ignition processing ceramic crucible is to come by the high temperature produced by electric arc is released between electrode
It is refractory metal tungsten bar to melt Top electrode 2 in quartz, stove, and it can be moved to select to carry out melting, and bottom electrode 3 is disposed on
In stove on crucible, when two electrodes close to when, as electric welding is the same, strong electric arc occurs between electrode, high temperature is produced quartzy
Melting, after power-off, the alloy of melting is just condensed into silica crucible, and vacuum system 6 constantly takes the gas of melting generation away so that stove
High vacuum state is kept in body 1, prevent pernicious gas again with quartzy chemical combination, reduce the content of objectionable impurities in quartz, keep away
Exempt from the generation of sand holes and shrinkage cavity, it is ensured that the quality of quartz production, quartz is completely in heating after molten condition and stops heating, graphite
Fused quartz melt natural cooling in mould 9, which is cooled to after normal temperature, removes electric arc furnaces, sloughs forming graphite mould 9, obtains stone
The formed body of English crucible.
When vacuum system 6 works, forvacuum is carried out to body of heater 1 by mechanical pump first, mechanical pump is by motor and the pump housing two
Part is constituted, it be using gas expansion, compression, discharge principle, during work, motor rotate it is mechanical gas from body of heater
Discharge.Oil molecule is produced after oil is heated in mechanical pump, these oil molecules flow to body of heater 1 due to the effect of vacuum in stove, oil
Molecule is combined with the air one's share of expenses for a joint undertaking in body of heater 1, then discharges air through mechanical pump, and oil molecule therein is due to the cooling of pump wall
And it is changed into liquid backflow.It can so be closed afterwards between vacuum system 6 and body of heater 1 with reaching certain vacuum in stove repeatedly
Valve, stops vacuumizing.
Embodiment is merely to illustrate the utility model rather than limits scope of the present utility model, is reading this practicality
After new, those skilled in the art fall within what the application appended claims were limited to various equivalences of the present utility model
Scope.
Claims (8)
1. a kind of vacuum arc furnace ignition of ceramic crucible processing, it is characterised in that：Including a body of heater (1), Top electrode (2), under
Electrode (3), electrode lifting mechanism (4), electrode stem (5), vacuum system (6) and power-supply system, wherein, Top electrode (2) top
Portion is connected with electrode stem (5), is offered at the top of body of heater (1) on the through hole passed through for electrode stem (5), the body of heater (1)
The electrode lifting mechanism (4) being connected with electrode stem (5) is provided with, the Top electrode (2) is correspondingly arranged up and down with bottom electrode (3),
The bottom electrode (3) can move up and down and remove, and be provided with crucible (7), the crucible (7) and set below the bottom electrode (3)
Electric arc, the crucible (7) is fixed by fixing device (8) with body of heater (1) inwall, and forming graphite is provided with below the crucible (7)
Mould (9), forming graphite mould (9) left and right sides is provided with holding handle (10)；Body of heater (1) left side and vacuum system
(6) connection and the control valve whether connected with body of heater (1) provided with control vacuum system (6) between the two；On the right side of the body of heater (1)
Provided with extraction valve (11), the power-supply system respectively with vacuum system (6), electrode stem (5), electrode lifting mechanism (4), upper electricity
Pole (2) and bottom electrode (3) electrical connection.
2. a kind of vacuum arc furnace ignition of ceramic crucible processing according to claim 1, it is characterised in that：The vacuum system
System (6) uses mechanical pump, and the mechanical pump is provided with electromagnetic release valve.
3. a kind of vacuum arc furnace ignition of ceramic crucible processing according to claim 1, it is characterised in that：The body of heater
(1) Double water-cooled structure is used, internal layer is made up of stainless steel, and outer layer is welded for steel plate.
4. a kind of vacuum arc furnace ignition of ceramic crucible processing according to claim 1, it is characterised in that：The body of heater
（1）Front, which is provided with an observation window, the observation window, is equipped with blackish green eyeshield glass.
5. a kind of vacuum arc furnace ignition of ceramic crucible processing according to claim 1, it is characterised in that：The power supply system
System includes silicon controlled rectifier module, strong current transformer and current regulator.
6. a kind of vacuum arc furnace ignition of ceramic crucible processing according to claim 1, it is characterised in that：The electrode stem
（5）For cylinder, and it is vertically arranged, and vertical state can be kept to move integrally.
7. a kind of vacuum arc furnace ignition of ceramic crucible processing according to claim 1, it is characterised in that：The body of heater
（1）Bottom right is provided with the side door taken out for forming graphite mould（12）, the side door（12）It is formed around sealing strip.
8. a kind of vacuum arc furnace ignition of ceramic crucible processing according to claim 7, it is characterised in that：The side door
（12）Right side hangs and cooling fan (14) is provided with the right side of area (13) provided with area (13) is hung.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621347958.9U CN206321043U (en) | 2016-12-09 | 2016-12-09 | A kind of vacuum arc furnace ignition of ceramic crucible processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621347958.9U CN206321043U (en) | 2016-12-09 | 2016-12-09 | A kind of vacuum arc furnace ignition of ceramic crucible processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206321043U true CN206321043U (en) | 2017-07-11 |
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ID=59267882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621347958.9U Expired - Fee Related CN206321043U (en) | 2016-12-09 | 2016-12-09 | A kind of vacuum arc furnace ignition of ceramic crucible processing |
Country Status (1)
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|---|---|
| CN (1) | CN206321043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604174A (en) * | 2017-10-23 | 2018-01-19 | 沈阳真空技术研究所 | Vacuum cold crucible skull crucible electrode transmission system |
-
2016
- 2016-12-09 CN CN201621347958.9U patent/CN206321043U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604174A (en) * | 2017-10-23 | 2018-01-19 | 沈阳真空技术研究所 | Vacuum cold crucible skull crucible electrode transmission system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 Termination date: 20171209 |