CN209363579U - A kind of metal semicontinuous casting crystallizer melting bath stirring device - Google Patents
A kind of metal semicontinuous casting crystallizer melting bath stirring device Download PDFInfo
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- CN209363579U CN209363579U CN201821828678.9U CN201821828678U CN209363579U CN 209363579 U CN209363579 U CN 209363579U CN 201821828678 U CN201821828678 U CN 201821828678U CN 209363579 U CN209363579 U CN 209363579U
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- molten metal
- metal
- shunting disk
- crystallizer
- stirring
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Abstract
A kind of metal semicontinuous casting crystallizer melting bath stirring device, belongs to the field of metal processing.Device is made of agitating device, molten metal shunting disk, ingot casting, dummy device, metal bath, crystallizer and diversion pipe.It is thin-walled hollow cylinder in the middle part of molten metal shunting disk, thin-walled hollow cylindrical upper portion installs flange additional, is fixed on stirring rod lower part by screw rod；Agitating device is made of rotating electric machine and stirring rod, and stirring rod protrudes into melt by hollow cylinder thin-walled tapping in the middle part of molten metal shunting disk.Molten metal flows into molten metal shunting disk through diversion pipe, and crystallizer is entered after shunting, slab is frozen under stirring and crystallizer effect, then pulled out by the dummy device of slab bottom.Using the present apparatus can significant thinning microstructure, promote uniform temperature fields distribution in slab, improve casting blank solidification tissue and homogeneity of ingredients, reduce slab crack defect, improve slab quality, while simple process, easy to operate, processing cost is low, can be widely applied to metal slab manufacturing process.
Description
Technical field
The utility model belongs to the field of metal processing, and in particular to a kind of metal semicontinuous casting crystallizer melting bath stirring dress
It sets.
Background technique
Semi-continuous casting technology is one of the major way of current metal slab production, initially by German Junghaus
It was succeeded in developing in 1933, which is to inject metal bath in water mold, and melt contacts cooling solidifying with crystallizer wall
Gu the green shell of solidification is pulled out crystallizer by traction device and continues water-spraying control, to obtain ingot casting by shelling.Semicontinuous casting
The technology of making has the characteristics that high production efficiency, casting cost are low, easy to operate, using wide in non-ferrous metal ingot blank production process
It is general.
During semi-continuous casting, metal bath and the cooling of crystallizer wall contact site are rapid, and centre melt
Heat is difficult to quickly export, and causes the higher edge melt temperature of central melt temperature lower, is formed in metal bath uneven
Temperature field, and then cause to generate thermal stress in casting process, crackle is also easy to produce during following process.Currently, semicontinuous
In terms of foundry engieering, reduce slab crack defect, obtaining the uniform slab of fine microstructures, ingredient becomes the master of metal casting production
Want project.
Patent " a kind of semi-continuous casting device and method for inhibiting magnesium alloy ingot blank cracking " (China, publication number
CN108246991A a kind of semi-continuous casting device with adjustable flow distributing disk and with water cooling plant combination dummy ingot) is proposed, is led to
The reasonable diffluence that adjustable flow distributing disk reaches magnesium liquid is crossed, guarantees that Serum Magnesium is uniformly filled in crystallizer, while drawing by combination
Ingot device guarantees that center portion position melt cooling velocity is synchronous with edge, reduces the generation of internal stress, but the equipment operation to the greatest extent
Complexity, centre molten metal cannot continue to cool down.
Patent " light metal semi-continuous casting and the dedicated unit for implementing this method " (Chinese patent, patent No.
ZL200610031524.2 the agitator that low-melting-point metal) is accessed by inorganic heat tube stirs heat derives at liquid cave and reaching
The purpose of molten metal is mixed, the equipment replacement inorganic heat tube is cumbersome.
Patent " a kind of part flow arrangement and casting system for magnesium alloy semi-continuous casting " (Chinese patent,
CN105382227B the part flow arrangement for) introducing spreader and zirconia base porous form is permeated molten metal by tortuous hole
Into crystallizer, the porous part flow arrangement of zirconium oxide is easily blocked in industrial application, causes melt distribution uneven, is generated casting and is lacked
It falls into.
Patent " a kind of magnetic pulse semi-continuous casting device and casting method " (Chinese patent, publication number
CN101733381A) magnetic pulse device is set outside crystallizer, when metal bath passes through crystallizer, magnetic pulse device can be right
Melt generates constriction and concussion effect, increases melt nucleation rate, while homogenizing melt temperature, but device needs are crystallizing
Wind electromagnetic coil around device, higher cost, energy consumption is larger.
Patent " a kind of continuous casing for producing aluminium alloy semi-solid ingot casting " (Chinese patent, publication number
CN102161081A) proposing a kind of includes shunting disk, diversion pipe middle part installation mechanical stirring device, external installation electromagnetic agitation
The continuous casting equipment of device, wherein shunting disk is equivalent to tundish, does not play shunting function, and device for mechanical stirring does not have
Refrigerating function cannot quickly export the heat in molten metal centre, and technology controlling and process is difficult, and the device is complicated, and energy consumption is larger.
Other than above-mentioned apparatus, patent CN105170926A proposes a kind of " three sections of vertical roll-casting of magnesium alloy cloth stream dresses
It sets "；Patent CN102665965B proposes " the metal filling device for continuous casting equipment "；Patent CN102756102B is mentioned
" Processes and apparatus of pore area water cooling in the hollow billet vertical semi-continuous casting of copper " out；Patent CN104220191B is proposed
" continuous casting equipment "；Patent CN104511578A proposes " a kind of vertical semi-continuous casting machine crystallizer cooling device "；Specially
Sharp CN104117645B proposes " a kind of shearing, the light metal semi-continuous casting device under the compound action of magnetic field and method "；Patent
CN105522131A proposes " a kind of magnesium alloy rod power ultrasound semi-continuous casting and failure detector and method "；Patent
CN10451 1576A proposes " a kind of copper ingot vertical semi-continuous casting machine ".
Above although various semi-continuous casting devices have the characteristics that respective, but all Shortcomings, most of all to there is technique
The characteristics of control is difficult, the device is complicated, inconvenient, manufacturing cost is high, energy consumption is high, therefore, it is still necessary to propose new semicontinuous casting
Device is made, to simplify technique, improves efficiency, reduces cost.
Summary of the invention
To solve the above problems existing in the prior art, the utility model design it is a kind of it is easy to operate, low in cost, be easy to
It realizes the metal semicontinuous casting crystallizer melting bath stirring device and its casting method of industrial applications, realizes in semi-continuous casting
In the process, agitating device and molten metal shunting disk are nearby set in solidification of metal melt forward position, obtain structural constituent and uniformly casts
Base, while inhibiting the generation of internal stress in casting process, reduce crack of billet defect.
A kind of metal semicontinuous casting crystallizer melting bath stirring device, including agitating device, molten metal shunting disk, ingot casting,
Dummy device, metal bath, crystallizer and diversion pipe；It is hollow cylinder thin-walled, the thin-walled that the molten metal, which shunts disk center,
Acting flange on hollow cylinder；Stirring rod of the agitating device by rotating electric machine and with the thermally conductive function of cooling forms, described to stir
It mixes bar and metal bath is protruded by hollow cylinder center in the middle part of molten metal shunting disk；The molten metal shunting disk is fixed by screw rod
In agitating device lower position；Branch's diversion pipe is arranged in the molten metal diversion pipe.
Further, the stirring shank diameter d is 0.1~0.3 times of the ingot diameters D, the molten metal shunting disk
Diameter d2It is 0.3~0.8 times of the ingot diameters D, hollow cylinder internal diameter d in the middle part of the molten metal shunting disk1For the stirring
Shank diameter d+5~15mm.
Further, the agitating device top is fixed with flange, the flange diameter d3=d1+ 20~40mm, the method
Blue circumferential direction three~tetra- screw holes of spaced set, are connect by screw rod with the molten metal shunting disk, the spiro rod length L=
0.5~3d2。
Further, the stirring rod is driven by rotating electric machine and is rotated, and the rotating electric machine is provided with speed setting unit,
The range of speeds is 0~1000r/min, and the stirring rod has cooling thermally conductive function.
Further, the molten metal shunting disk outer side surface is provided with equally distributed tap hole, the outer side surface
Height h is that the molten metal shunts disk diameter d20.2~0.5 times, the shunting bore dia d ' be the outer side surface height h
0.1~0.3 times, the shunting hole shape can be circular hole or other shapes hole, and pitch of holes l is described to shunt bore dia d '
1~3 times, the tap hole is away from 0.2~0.4 times that the difference in height h ' for shunting pan bottom is the outer side surface height h.
Further, branch's water conservancy diversion tube end outlet angle with horizontal plane is 0~75 °, and the end exports direction
Hollow cylinder wall surface.
The utility model technology provides a kind of metal semicontinuous casting crystallizer melting bath stirring method, using above-mentioned apparatus,
Following operation can be achieved:
(1) agitating device and molten metal shunting disk are placed in above crystallizer, molten metal shunting disk edge is away from crystallizer
Dummy device is protruded into 20~70mm inside crystallizer by lower section by open topped 30~80mm of distance, and by dummy device and knot
Gap filling between brilliant device is good, prevents molten metal from leaking out, drying crystallization type chamber；
(2) molten metal branch diversion pipe is introduced into molten metal shunting disk, pressurizeed to molten metal smelting furnace, metal liquid stream
To smelting furnace → diversion pipe → branch's diversion pipe → molten metal shunting disk, while opening agitating device, and connect cooling system and
Crystallizer cooling water, the molten metal flowed out from branch's diversion pipe first reaches from thin wall cylindrical, then flows to shunting disk periphery tap hole
Place；
(3) molten metal flows into crystallizer by molten metal shunting disk tap hole, and what is contacted with crystallizer wall and dummy device is molten
Body cooled and solidified shelling, forms nascent green shell, pulls out crystallizer by the draw of dummy device；
(4) not solidified molten metal continues to flow to crystallizer medium position, under the stirring and cooling effect of agitating device
Shelling is solidified, after ingot blank reaches desired size, takes out cast metals.
Molten metal can be reasonably allocated to around crystallizer by the utility model during metal semicontinuous casting, be passed through
Agitating device stirring and cooling effect can quickly export the heat in molten metal centre, with crystallizer periphery melt composition
Uniform thermo parameters method, while centre molten metal is sufficiently stirred in stirring action, improves centre molten metal
Mobility improves continuous casting billet structure and homogeneity of ingredients, can eliminate loose continuous casting billet structure, component segregation and casting crack etc. and lack
It falls into.The metal semicontinuous casting crystallizer melting bath stirring device of the utility model can effectively improve Inner Quality of Billet, and reduction is split
Line occur, have the characteristics that structure be simple and convenient to operate, fabricate it is at low cost, applied widely, can large-scale application in each
Kind kind, gauge metal slab manufacturing process.
Detailed description of the invention
Fig. 1 is the metal semicontinuous casting crystallizer melting bath stirring apparatus structure schematic diagram of the utility model: wherein 1- is stirred
Mix device；2- rotating electric machine；3- flange；4- molten metal shunting disk；5- stirring rod；6- ingot casting；7- dummy device；8- metal is molten
Pond；9- crystallizer；10- molten metal diversion pipe and branch's diversion pipe；11- screw rod.
Fig. 2 is metal shunt dish structure schematic diagram shown in Fig. 1: wherein 4- molten metal shunting disk；4-2- tap hole；3- method
It is blue；11- screw rod.
Specific embodiment
The utility model specific embodiment or technical solution in the prior art is described in detail below with reference to specific attached drawing,
Following embodiments are served only for that the utility model is further described, and should not be understood as the limit to scope of protection of the utility model
System, it is all that any simple modification, change and equivalent structure made by following embodiment are become according to the utility model technical spirit
Change, in the protection scope for still falling within technical solutions of the utility model.
The utility model specific embodiment provides a kind of metal semicontinuous casting crystallizer melting bath stirring installation, and structure is such as
Shown in Fig. 1~2, including agitating device (1), molten metal shunting disk (4), ingot casting (6), dummy device (7), metal bath (8),
Crystallizer (9) and molten metal diversion pipe (10).It is thin-walled hollow cylinder in the middle part of the molten metal shunting disk (4), the stirring dress
It sets the stirring rod (5) by rotating electric machine (2) and with refrigerating function to form, the stirring rod (5) passes through in the hollow cylinder
The heart protrudes into molten metal melt, acting flange (3) on the hollow cylinder, and 3~4 screw holes are circumferentially arranged in the flange (3), passes through spiral shell
Bar (11) is fixed by molten metal shunting disk (4) and agitating device (1)；Molten metal shunting disk (4) outer side surface is uniformly arranged
Multiple tap holes (4-2)；Molten metal shunting disk (4) and agitating device (1) are placed in above crystallizer (9), and the molten metal is led
Branch's diversion pipe is arranged in flow tube, and branch's diversion pipe introduces in the molten metal shunting disk, and branch's water conservancy diversion tube end goes out
Mouth angle with horizontal plane is in 0~75 °, and the end is exported towards hollow cylinder wall surface.
Embodiment 1
The present embodiment provides a kind of semicontinuous stirring casting sides of the magnesium alloy metal cylinder base of sectional dimension Φ 450mm
Method, using above-mentioned apparatus: wherein molten metal shunts disk diameter 350mm, stirs shank diameter 50mm, and molten metal shunting disk middle part is hollow
Thin wall cylindrical internal diameter 60mm, melt depth is protruded at stirring rod stirring end and the molten metal shunting disk distance from bottom is 70mm, outside
Side wall surface height 75mm, shunts bore dia 15mm, and tap hole is uniformly distributed away from shunting disk bottom level difference 15mm in outer side wall surface
Four screw holes, spiro rod length 200mm, branch draft-tube diameter 70mm are arranged in 30 tap holes, flange, and stirring boom end protrudes into molten bath
It exports apart from branch's water conservancy diversion tube end horizontal by 45° angle, specific implementation step is as follows:
(1) agitating device and molten metal shunting disk are placed in above crystallizer, molten metal shunting disk edge is away from crystallizer
Dummy device is protruded into 50mm inside crystallizer by lower section by open topped distance 80mm, and will be between dummy device and crystallizer
Gap filling it is good, prevent molten metal from leaking out, drying crystallization type chamber；
(2) molten metal branch diversion pipe is introduced into molten metal shunting disk, pressurizeed to molten metal smelting furnace, metal liquid stream
To smelting furnace → diversion pipe → branch's diversion pipe → molten metal shunting disk, while opening agitating device, and connect cooling system and
Crystallizer cooling water, the molten metal flowed out from branch's diversion pipe first reaches from thin wall cylindrical, then flows to shunting disk periphery tap hole
Place；
(3) molten metal flows into crystallizer by molten metal shunting disk tap hole, and what is contacted with crystallizer wall and dummy device is molten
Body cooled and solidified shelling, forms nascent green shell, pulls out crystallizer by the draw of dummy device；
(4) not solidified molten metal continues to flow to crystallizer medium position, under the stirring and cooling effect of agitating device
Shelling is solidified, after ingot blank reaches desired size, takes out cast metals.
Embodiment 2
The present embodiment provides a kind of semicontinuous stirring casting sides of the Al-alloy metal cylindrical blank of sectional dimension Φ 200mm
Method, using above-mentioned apparatus: wherein molten metal shunts disk diameter 150mm, stirs shank diameter 30mm, and molten metal shunting disk middle part is hollow
Thin wall cylindrical internal diameter 40mm, melt depth is protruded at stirring rod stirring end and the molten metal shunting disk distance from bottom is 20mm, outside
Side wall surface height 50mm, shunts bore dia 8mm, and tap hole is uniformly distributed away from shunting disk bottom level difference 10mm in outer side wall surface
20 tap holes, flange be arranged three screw holes, molten metal branch draft-tube diameter 40mm, branch's water conservancy diversion tube end outlet axes with
Horizontal plane is in 30 °, and specific implementation step is as follows:
(1) agitating device and molten metal shunting disk are placed in above crystallizer, molten metal shunting disk edge is away from crystallizer
Dummy device is protruded into 30mm inside crystallizer by lower section by open topped distance 50mm, and will be between dummy device and crystallizer
Gap filling it is good, prevent molten metal from leaking out, drying crystallization type chamber；
(2) molten metal branch diversion pipe is introduced into molten metal shunting disk, pressurizeed to molten metal smelting furnace, metal liquid stream
To smelting furnace → diversion pipe → branch's diversion pipe → molten metal shunting disk, while opening agitating device, and connect cooling system and
Crystallizer cooling water, the molten metal flowed out from branch's diversion pipe first reaches from thin wall cylindrical, then flows to shunting disk periphery tap hole
Place；
(3) molten metal flows into crystallizer by molten metal shunting disk tap hole, and what is contacted with crystallizer wall and dummy device is molten
Body cooled and solidified shelling, forms nascent green shell, pulls out crystallizer by the draw of dummy device；
(4) not solidified molten metal continues to flow to crystallizer medium position, under the stirring and cooling effect of agitating device
Shelling is solidified, after ingot blank reaches desired size, takes out cast metals.
The above is only the specific application examples of the utility model, do not constitute any limit to the protection scope of the utility model
System.Any technical scheme formed by adopting equivalent transformation or equivalent replacement, all fall within the utility model rights protection scope it
It is interior.
Claims (6)
1. a kind of metal semicontinuous casting crystallizer melting bath stirring device, which is characterized in that including agitating device (1), molten metal
Shunting disk (4), ingot casting (6), dummy device (7), metal bath (8), crystallizer (9) and diversion pipe (10)；The molten metal point
Flow table (4) center is hollow cylinder thin-walled, acting flange on the thin-walled hollow cylinder；The agitating device (1) is by rotating electric machine
(2) and stirring rod (5) composition, the stirring rod (5) protrude into metal bath by molten metal shunting disk (4) hollow cylinder center；
The molten metal shunting disk (4) is fixed on agitating device (1) lower position by screw rod (11)；The molten metal diversion pipe (10)
Branch's diversion pipe is set.
2. metal semicontinuous casting crystallizer melting bath stirring device according to claim 1, which is characterized in that the stirring
Bar (5) diameter d is 0.1~0.3 times of the ingot casting (6) diameter D, molten metal shunting disk (4) the diameter d2For the ingot casting
(6) 0.3~0.8 times of diameter D, molten metal shunting disk (4) the middle part hollow cylinder internal diameter d1For the stirring shank diameter d+
(5~15) mm.
3. metal semicontinuous casting crystallizer melting bath stirring device according to claim 1, which is characterized in that the stirring
Device (1) top is fixed with flange (3), the flange diameter d3=d1+ (20~40) mm, the flange circumferential direction spaced set
Three~tetra- screw holes are connect by screw rod (11) with the molten metal shunting disk (4), screw rod (11) the length L=(0.5~
3)d2。
4. metal semicontinuous casting crystallizer melting bath stirring device according to claim 1 or 2, which is characterized in that described
Stirring rod (5) is driven by rotating electric machine (2) to be rotated, and the rotating electric machine (2) is provided with speed setting unit, the range of speeds 0
~1000r/min, the stirring rod have cooling thermally conductive function.
5. metal semicontinuous casting crystallizer melting bath stirring device according to claim 1 or 2, which is characterized in that described
Molten metal shunting disk (4) outer side surface is provided with equally distributed tap hole, and the outer side surface height h is the molten metal point
Flow table diameter d20.2~0.5 times, pitch of holes l be it is described shunt 1~3 times of bore dia d ', the tap hole is away from shunting disk bottom
The difference in height h ' in portion is 0.2~0.4 times of the outer side surface height h.
6. metal semicontinuous casting crystallizer melting bath stirring device according to claim 1, which is characterized in that the branch
It is 0~75 ° that water conservancy diversion tube end, which exports angle with horizontal plane, and the end is exported towards hollow cylinder wall surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821828678.9U CN209363579U (en) | 2018-11-07 | 2018-11-07 | A kind of metal semicontinuous casting crystallizer melting bath stirring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821828678.9U CN209363579U (en) | 2018-11-07 | 2018-11-07 | A kind of metal semicontinuous casting crystallizer melting bath stirring device |
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| Publication Number | Publication Date |
|---|---|
| CN209363579U true CN209363579U (en) | 2019-09-10 |
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ID=67836099
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821828678.9U Expired - Fee Related CN209363579U (en) | 2018-11-07 | 2018-11-07 | A kind of metal semicontinuous casting crystallizer melting bath stirring device |
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| CN (1) | CN209363579U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109261916A (en) * | 2018-11-07 | 2019-01-25 | 北京科技大学 | A kind of metal semicontinuous casting crystallizer melting bath stirring device and method |
-
2018
- 2018-11-07 CN CN201821828678.9U patent/CN209363579U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109261916A (en) * | 2018-11-07 | 2019-01-25 | 北京科技大学 | A kind of metal semicontinuous casting crystallizer melting bath stirring device and method |
| CN109261916B (en) * | 2018-11-07 | 2023-08-11 | 北京科技大学 | Molten pool stirring device and method for metal semi-continuous casting crystallizer |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |