CN104232917B - Double moves crystallizer vacuum electroslag furnace - Google Patents
Double moves crystallizer vacuum electroslag furnace Download PDFInfo
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- CN104232917B CN104232917B CN201410486647.XA CN201410486647A CN104232917B CN 104232917 B CN104232917 B CN 104232917B CN 201410486647 A CN201410486647 A CN 201410486647A CN 104232917 B CN104232917 B CN 104232917B
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Abstract
The invention belongs to vacuum smelting equipment field, more particularly to a kind of double-position vacuum electroslag furnace, and it includes No. 1 station vacuum melting unit（23）And mutually isostructural No. 2 station vacuum melting unit（24）；No. 1 station vacuum melting unit（23）Including lifting arm（1）, centering chuck（2）, telescopic sealing pipe（3）, dummy electrode（4）, smelting electrode（5）, quick-release docking upper flange（501）And quick-release docking lower flange（502）；In vacuum melting chamber（8）It is interior to be provided with elevating mechanism（28）, mobile crystallizer（6）And pallet（9）；Mobile crystallizer（6）It is fixed at elevating mechanism（28）Middle lift supporting arm（29）End；Lift supporting arm（29）Can be around central shaft（30）Rotation；The pallet（9）It is placed in central shaft（30）Bottom.The present invention is simple in construction, and good reliability, manufacturing cost is cheap, saves the energy, and operating efficiency is high.
Description
Technical field
The invention belongs to vacuum smelting equipment field, more particularly to a kind of double movement crystallizer vacuum electroslag furnace.
Background technology
Vacuum electroslag melting is the special steel to grow up on the basis of vacuum arc melting and gas shield electroslag melting
Melting technique.Realize that the equipment of vacuum electroslag melting technique is referred to as vacuum electroslag furnace.
Gas pressure is low in vacuum environment, is changed the physical process of smelting, is advantageous to deviate from gas.In vacuum
Under the conditions of, the physical property of material can also change, and boiling temperature reduces.For example, boiling temperature is 100 to water at ambient pressure
DEG C, and there was only 70 ~ 80 DEG C under vacuum, change with the change of vacuum.Metal is also the same, such as zinc is at ambient pressure
906 DEG C of boilings, degree can seethe with excitement only more than 800 under vacuum, and boiling point is 1740 DEG C to lead at ambient pressure, and in a vacuum
1000 DEG C can evaporate.That is the boiling point of metal reduces under vacuum, be advantageous to the vaporization of metal, evaporate and take off
Gas.
Under vacuum, the gas for making to be mingled with originally during metal molten in a metal is released, and leaves molten metal quilt quickly
Vavuum pump is taken away.Originally metal and the compound of gas generation, the gas decomposed to give off in fusion process is quickly by vavuum pump
Take away.
Vacuum electroslag melting is suitable for the remelting and refining of ingot after vacuum induction melting or general EAR melting.Melting
O in ingot after refining2、N2、H2Extremely low Deng gas content, the nonmetal inclusion such as sulphur, phosphorus is seldom, and the quality of metal product has
Larger raising, it is suitable for the application of the high-end fields such as Aeronautics and Astronautics, navigation, military project, high ferro and nuclear industry.
Vacuum electroslag melting is also protected in addition to the characteristics of general vacuum metallurgy with general EAR metallurgy, gas
The characteristics of protecting electroslag metallurgy.Slag in vacuum electroslag melting is dried in vacuo while Metal Melting, is eliminated in slag
Vapor, add the gas permeability of slag, metal drop caused by melting has been obtained more degassings.
Vacuum electroslag melting has following features.
1st, the slag in vacuum electroslag melting is dried in vacuo while Metal Melting, and the water eliminated in slag steams
Gas, the gas permeability of slag is added, metal drop caused by melting has been obtained more degassings, gas pressure in vacuum environment
It is low, changed the physical process of smelting, reduce metal boiling temperature, be advantageous to the vaporization, evaporation and degassing of metal.
2nd, gas is thin under vacuum environment, and metal will not aoxidize in fusion process.
3rd, vacuum electroslag remelting, no waste water,waste gas and industrial residue, to the few pollution of environment, metal recovery rate is high, and scaling loss is few, gold
The mechanical and physical performance of category greatly improves, and can solve the insurmountable problem of general EAR melting.Realize safety（With common electricity
Slag phase ratio）, environmental protection, synergy, energy-conservation.
4th, compared with vacuum arc melting, with more " white point " is less prone to, metal quality is more preferable.
At present, existing vacuum electroslag furnace is in the prevalence of complicated, poor reliability, and manufacturing cost is high, and energy consumption is big, operation
The problems such as efficiency is low.
The content of the invention
It is contemplated that a kind of simple in construction, good reliability, manufacturing cost are provided in place of overcome the deficiencies in the prior art
It is cheap, save the energy, the high double movement crystallizer vacuum electroslag furnace of operating efficiency.
In order to solve the above technical problems, what the present invention was realized in.
Double moves crystallizer vacuum electroslag furnace, and it includes No. 1 station vacuum melting unit and the mutually isostructural 2nd
Number station vacuum melting unit；No. 1 station vacuum melting unit and No. 2 station vacuum melting unit include rising respectively
Arm, centering chuck, telescopic sealing pipe, dummy electrode, smelting electrode, quick-release docking upper flange and quick-release docking lower flange drop；Institute
The top of centering chuck and the end of lifting arm is stated to be hinged；The upper end of the telescopic sealing pipe is sealed with the baffle plate of centering chuck
Connect；Upper flange sealing-in is docked with quick-release in the lower end of the telescopic sealing pipe；The upper end of the dummy electrode and centering chuck clamping；
The smelting electrode welds with dummy electrode；The quick-release docking lower flange connects with the top docking port of vacuum conversion chamber；It is described
Push-pull valve is transversely provided with the top of vacuum conversion chamber, its bottom is transversely provided with underthrust plate valve；The bottom of the vacuum conversion chamber
Port connects with the upper shed of vacuum melting chamber；Elevating mechanism, mobile crystallizer and pallet are provided with the vacuum melting intracavitary；
The mobile crystallizer is fixed at the end of lift supporting arm in elevating mechanism；The lift supporting arm can revolve around central shaft
Turn；The pallet is placed in the bottom of central shaft.
As a kind of preferred scheme, centering chuck of the present invention includes baffle plate, hanger, locking jacket, clamping body, cone
Shape drift, drift stage clip, tub and bearing pin；The hanger is fixed at the top of baffle plate；The top for clamping body is through hanging
Bar is fixedly connected with baffle plate；The locking jacket is socketed with suspension rod；Stage clip is provided between the baffle plate and locking jacket；It is described
Tub fixes the outside for being placed on gripping sleeve body；The bearing pin is laterally disposed on tub；The taper drift is positioned at clamping body
Bottom, and be placed in tub；The end of taper drift connects through bearing pin and tub axle；Taper drift position is corresponded in tub to open
There is taper drift to stretch out window；The drift stage clip, which is placed in, to be clamped between body and taper drift, passes through the pressure of drift stage clip
Taper drift is set to form axial drift angle.
Further, the upper end of dummy electrode of the present invention and the wedge shaped structure in centering chuck joint portion.
Further, telescopic sealing pipe of the present invention can use bellows structure.
Further, telescopic sealing pipe of the present invention can also use welding diaphragm structure.
Compared with prior art, the present invention has following features.
1st, original piston type vacuum chamber is substituted using diaphragm bellows telescopic cavity, static seal is become by slippage sealing of elastoplastic in relative motion dust seal, protected
The holding of high vacuum has been demonstrate,proved, the reliability of equipment has been improved, improves product quality.Overall structure is simplified, reduces manufacture
Cost.
2nd, the double of cavity configuration and mobile crystallizer is changed using the vacuum with upper push-pull valve and underthrust plate valve composition
Structure, alternately melting, realizes the melting of more stoves, more gauge materials.
3rd, conical surface automatic clamping chuck designs, and realizes Automatic-clamping, automatic centering, contact area is big, well conducting, reduces and connects
Triggering heat, reduces energy loss.
4th, using lifting arm electrode suspended structure, automatic centering is realized, reduces processing cost.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and detailed description.Protection scope of the present invention not only office
It is limited to the statement of following content.
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is No. 1 station vacuum melting cellular construction schematic diagram of the invention.
Fig. 3 is centering chuck structure schematic diagram of the present invention.
Fig. 4 is centering chuck tub part-structure schematic diagram of the present invention.
In figure：1st, lifting arm；2nd, centering chuck；3rd, telescopic sealing pipe；4th, dummy electrode；5th, smelting electrode；501st, quick-release
Dock upper flange；502nd, quick-release docking lower flange；6th, fixed crystallizer；7th, baffle plate；8th, vacuum melting chamber；9th, pallet；10th, opened on
Mouthful；11st, hanger；12nd, locking jacket；13rd, body is clamped；1401st, taper drift；1402nd, taper drift；1501st, drift stage clip；
1502nd, drift stage clip；1601st, bearing pin；1602nd, bearing pin；17th, suspension rod；18th, stage clip；19th, vacuum chamber is taken over；20th, electroslag；21st, cylinder
Frame；22nd, taper drift stretches out window；23rd, No. 1 station vacuum melting unit；24th, No. 2 station vacuum melting unit；25、
Vacuum changes chamber；26th, upper push-pull valve；27th, underthrust plate valve；28th, elevating mechanism；29th, lift supporting arm；30th, central shaft；31st, melt
Refine electroslag.
Embodiment
As illustrated, double moves crystallizer vacuum electroslag furnace, it includes No. 1 station vacuum melting unit 23 and phase
Isostructural No. 2 station vacuum melting unit 24；No. 1 station vacuum melting unit 23 and No. 2 station vacuum melt
Refine unit 24 includes lifting arm 1, centering chuck 2, telescopic sealing pipe 3, dummy electrode 4, smelting electrode 5, quick-release to connecting respectively
Flange 501 and quick-release docking lower flange 502；The top and the end of lifting arm 1 of the centering chuck 2 are hinged；It is described scalable
The upper end of seal pipe 3 and the sealing-in of baffle plate 7 of centering chuck 2；Upper flange is docked with quick-release in the lower end of the telescopic sealing pipe 3
501 sealing-ins；The upper end of the dummy electrode 4 and the clamping of centering chuck 2；The smelting electrode 5 is fixedly connected with dummy electrode 4；It is described
Quick-release docks lower flange 502 and connected with the top docking port of vacuum conversion chamber 25；The top of the vacuum conversion chamber 25 is laterally set
There is upper push-pull valve 26, its bottom is transversely provided with underthrust plate valve 27；The bottom port and vacuum melting chamber 8 of the vacuum conversion chamber 25
Upper shed 10 connect；Elevating mechanism 28, mobile crystallizer 6 and pallet 9 are provided with the vacuum melting chamber 8；The movement
Crystallizer 6 is fixed at the end of lift supporting arm 29 in elevating mechanism 28；The lift supporting arm 29 can revolve around central shaft 30
Turn；The pallet 9 is placed in the bottom of central shaft 30.
Centering chuck 2 of the present invention includes baffle plate 7, hanger 11, locking jacket 12, clamping body 13, taper drift
1401st, 1402, drift stage clip 1501,1502, tub 21 and bearing pin 1601,1602；The hanger 11 is fixed at the top of baffle plate 7
Portion；The top for clamping body 13 is fixedly connected through suspension rod 17 and baffle plate 7；The locking jacket 12 is socketed with suspension rod 17；
Stage clip 18 is provided between the baffle plate 7 and locking jacket 12；The tub 21 fixes the outside for being placed on gripping sleeve body 13；The pin
Axle 1601,1602 is laterally disposed on tub 21；The taper drift 1401,1402 is put positioned at the bottom of clamping body 13
In in tub 21；The end of taper drift 1401,1402 connects through bearing pin 1601,1602 and the axle of tub 21；It is corresponding in tub 21
Taper drift 1401,1402 positions are provided with taper drift and stretch out window 22；The drift stage clip 1501,1502 is placed in clamping body
Between 13 and taper drift 1401,1402, the formation of taper drift 1401,1402 is made by the pressure of drift stage clip 1501,1502
Axial drift angle.
The upper end of dummy electrode 4 of the present invention and the wedge shaped structure in the joint portion of centering chuck 2.
Telescopic sealing pipe 3 of the present invention can use bellows structure.Certainly, welding can be also used according to the design needs
Diaphragm structure.
In concrete operations, quick-release docking upper flange 501 and quick-release docking lower flange 502 disengage, and lifting arm 1 is in highest
Position（Initial bit）, weld diaphragm and shrink, the taper drift 1401 and taper drift 1402 in centering chuck 2 are respectively in drift pressure
Spring 1501 and the lower opening of the effect of drift stage clip 1502（Taper drift 1401 and taper drift 1402 are rotating around bearing pin 1601 and bearing pin
1602 stretch out window 22 by taper drift is deflected outward an angle, the end of dummy electrode is stretched into the clamping of centering chuck 2
Workspace）, push-pull valve is closed, and crystallizer is located at pallet.
1st, slag is powered up.
The upper push-pull valve 26 and underthrust plate valve 27 of No. 1 station are opened, melting electroslag 31 is put on pallet 9.
2nd, Top electrode.
With loading and unloading material elevation and subsidence mechanical（Another purchase）, the dummy electrode end for treating smelting electrode is inserted in centering chuck 2, declines welding
Diaphragm 3 makes centering chuck 2 clamp electrode.Declining lifting arm 1 makes the lower end of smelting electrode decline weldering away from crystallizer to preset distance
Connecing diaphragm 3 makes the elongation of diaphragm bellows be directed at quick-release abutted flange upper and lower covers, locks flange.
3rd, melting.
Start vavuum pump, vacuometer is reached setting.Declining lifting arm 1 makes smelting electrode be connect with being contacted at electroslag
Energization source, electroslag heating, starts fusing metal, rises lifting by technological requirement uniform descent lifting arm 1, while by technological requirement
Support arm 29 and pallet.When lifting arm 1 drops to setting position, lift supporting arm 29 and pallet stop motion.
While No. 1 station melting, the smelting electrode of No. 2 station is installed with reference to the step of above, to connecting
Quick-release abutted flange, start another vavuum pump, its vacuum is reached setting.
4th, from No. 1 Switch of working position to No. 2 station meltings.
After the completion of No. 1 station, now, No. 2 station vacuum reaches setting.Smelting electrode is lifted to setting height
（Electrode stem is set to extract the height of crystallizer out）.Close push-pull valve and underthrust plate valve on No. 1 station, rotate mobile crystallizer and
Pallet, make to move crystallizer and melted electrode goes to No. 2 station.Open the upper push-pull valve and lower plugboard of No. 2 station
Valve, declining lifting arm by technological requirement makes electrode and electroslag contact start melting.When lift supporting arm 29 reaches setting position,
Lifting arm, lift supporting arm 29 and pallet stop movement.
5th, No. 1 station melting is switched to again from No. 2 station.
Can repeat above step as needed, installation electrode stem again melting to reaching requirement.
6th, melting completion, feeding.
Stop vavuum pump, open vacuum deflation valve, when vacuum chamber is as outer surface pressure, open No. 1 station and No. 2
The quick-release abutted flange of station, lifting arm 1 is risen to initial position, dummy electrode is clamped with loading and unloading material elevation and subsidence mechanical, rises film
Piece bellows to setting position, chuck disengages automatically, removes dummy electrode.Rising pallet, the bar after melting is set to be stretched from crystallizer
Go out, the bar after clamping melting with loading and unloading material elevation and subsidence mechanical takes out.
Present invention system forms to normal atmospheric electroslag furnace improvement and design, and it is to improving special alloy, especially mould steel, height
The quality of temperature alloy steel has very big meaning.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (5)
1. double moves crystallizer vacuum electroslag furnace, it is characterised in that including No. 1 station vacuum melting unit（23）And phase
Isostructural No. 2 station vacuum melting unit（24）；No. 1 station vacuum melting unit（23）And No. 2 station is true
Empty melting unit（24）Include lifting arm respectively（1）, centering chuck（2）, telescopic sealing pipe（3）, dummy electrode（4）, melting electricity
Pole（5）, quick-release docking upper flange（501）And quick-release docking lower flange（502）；The centering chuck（2）Top and lifting arm
（1）End be hinged；The telescopic sealing pipe（3）Upper end and centering chuck（2）Baffle plate（7）Sealing-in；It is described scalable
Seal pipe（3）Lower end dock upper flange with quick-release（501）Sealing-in；The dummy electrode（4）Upper end and centering chuck（2）Card
Connect；The smelting electrode（5）With dummy electrode（4）Welding；The quick-release docks lower flange（502）Chamber is changed with vacuum（25）It is upper
Portion's docking port connects；The vacuum changes chamber（25）Top be transversely provided with push-pull valve（26）, its bottom is transversely provided with underthrust
Plate valve（27）；The vacuum changes chamber（25）Bottom port and vacuum melting chamber（8）Upper shed（10）Connect；Described true
Empty melting chamber（8）It is interior to be provided with elevating mechanism（28）, mobile crystallizer（6）And pallet（9）；The mobile crystallizer（6）Fixation is set
In elevating mechanism（28）Middle lift supporting arm（29）End；The lift supporting arm（29）Can be around central shaft（30）Rotation；Institute
State pallet（9）It is placed in central shaft（30）Bottom.
2. double according to claim 1 moves crystallizer vacuum electroslag furnace, it is characterised in that：The centering chuck
（2）Including baffle plate（7）, hanger（11）, locking jacket（12）, clamp body（13）, taper drift（1401、1402）, drift pressure
Spring（1501、1502）, tub（21）And bearing pin（1601、1602）；The hanger（11）It is fixed at baffle plate（7）Top；Institute
State clamping body（13）Top through suspension rod（17）With baffle plate（7）It is fixedly connected；The locking jacket（12）With suspension rod（17）Set
Connect；In the baffle plate（7）With locking jacket（12）Between be provided with stage clip（18）；The tub（21）Fixation is placed on gripping sleeve body
（13）Outside；The bearing pin（1601、1602）It is laterally disposed in tub（21）On；The taper drift（1401、1402）Position
In clamping body（13）Bottom, and be placed in tub（21）It is interior；Taper drift（1401、1402）End through bearing pin（1601、
1602）With tub（21）Axle connects；In tub（21）Upper corresponding taper drift（1401、1402）Position is provided with taper drift and stretches out window
Mouthful（22）；The drift stage clip（1501、1502）It is placed in clamping body（13）With taper drift（1401、1402）Between, pass through
Drift stage clip（1501、1502）Pressure make taper drift（1401、1402）Form axial drift angle.
3. double according to claim 2 moves crystallizer vacuum electroslag furnace, it is characterised in that：The dummy electrode（4）
Upper end and centering chuck（2）The wedge shaped structure in joint portion.
4. double according to claim 3 moves crystallizer vacuum electroslag furnace, it is characterised in that：The telescopic sealing
Pipe（3）Using bellows structure.
5. double according to claim 3 moves crystallizer vacuum electroslag furnace, it is characterised in that：The telescopic sealing
Pipe（3）Using welding diaphragm structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410486647.XA CN104232917B (en) | 2014-09-23 | 2014-09-23 | Double moves crystallizer vacuum electroslag furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410486647.XA CN104232917B (en) | 2014-09-23 | 2014-09-23 | Double moves crystallizer vacuum electroslag furnace |
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| CN104232917A CN104232917A (en) | 2014-12-24 |
| CN104232917B true CN104232917B (en) | 2017-12-15 |
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| CN201410486647.XA Active CN104232917B (en) | 2014-09-23 | 2014-09-23 | Double moves crystallizer vacuum electroslag furnace |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111006518B (en) * | 2019-12-02 | 2021-08-24 | 抚顺特殊钢股份有限公司 | Application of expansion type hydraulic and pneumatic linkage seal for pressure engineering |
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| JPH03197625A (en) * | 1989-12-25 | 1991-08-29 | Daido Steel Co Ltd | Control method for esr slag |
| CN101457297A (en) * | 2009-01-07 | 2009-06-17 | 朱兴发 | Double-station high efficiency electroslag furnace |
| CN101691634A (en) * | 2009-09-08 | 2010-04-07 | 沈阳华盛冶金技术与装备有限责任公司 | Protective atmosphere electro-slag continuous casting furnace |
| CN202212566U (en) * | 2011-09-09 | 2012-05-09 | 沈阳东大兴科冶金技术有限公司 | Double-workstation dynamic-seal vacuum electroslag melting equipment |
| CN102703723A (en) * | 2012-01-20 | 2012-10-03 | 苏州振吴电炉有限公司 | Double-tower constant-melting-rate protective atmosphere electro slag furnace available for three-station alternate smelting |
| CN204185541U (en) * | 2014-09-23 | 2015-03-04 | 苏原 | A kind of double moves crystallizer vacuum electric slag hearth |
-
2014
- 2014-09-23 CN CN201410486647.XA patent/CN104232917B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03197625A (en) * | 1989-12-25 | 1991-08-29 | Daido Steel Co Ltd | Control method for esr slag |
| CN101457297A (en) * | 2009-01-07 | 2009-06-17 | 朱兴发 | Double-station high efficiency electroslag furnace |
| CN101691634A (en) * | 2009-09-08 | 2010-04-07 | 沈阳华盛冶金技术与装备有限责任公司 | Protective atmosphere electro-slag continuous casting furnace |
| CN202212566U (en) * | 2011-09-09 | 2012-05-09 | 沈阳东大兴科冶金技术有限公司 | Double-workstation dynamic-seal vacuum electroslag melting equipment |
| CN102703723A (en) * | 2012-01-20 | 2012-10-03 | 苏州振吴电炉有限公司 | Double-tower constant-melting-rate protective atmosphere electro slag furnace available for three-station alternate smelting |
| CN204185541U (en) * | 2014-09-23 | 2015-03-04 | 苏原 | A kind of double moves crystallizer vacuum electric slag hearth |
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