CN104550805B - A kind of deformation magnesium alloy ingot blank preparation facilities and method - Google Patents
A kind of deformation magnesium alloy ingot blank preparation facilities and method Download PDFInfo
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- CN104550805B CN104550805B CN201510071133.2A CN201510071133A CN104550805B CN 104550805 B CN104550805 B CN 104550805B CN 201510071133 A CN201510071133 A CN 201510071133A CN 104550805 B CN104550805 B CN 104550805B
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Abstract
The present invention relates to a kind of deformation magnesium alloy ingot blank preparation facilities and method.Described device includes dust arrester, smelting apparatus, sealing device, drainage set, shunting and flow control device, cast device six part composition；Described method include magnesium alloy dispensing, melting, seal, pressurize, drain, shunting and flow control, cast.Production procedure of the present invention is simple, low cost, process stabilizing, be easily achieved industrialized production.
Description
Technical field
The invention belongs to metal material and metallurgical technology field, be specifically related to a kind of deformation magnesium alloy ingot blank and prepare dress
Put and method.
Background technology
Magnesium alloy has the advantages such as proportion is little, specific strength is high, capability of electromagnetic shielding is good, resistance to shock is good, traffic,
The industrial circle such as communication, Aero-Space has huge application potential.Additionally, magnesium has rich in natural resources on earth.
In recent years, the requirement saving the energy and protection environment promotes the quick growth of magnesium alloy application.Magnesium alloy zero at present
Parts are mainly produced by the method for die casting, but the mechanical property of die casting is relatively low, limits magnesium alloy good characteristic
Performance, and hinder the expansion of magnesium alloy application and the raising of consumption.And it is wrought magnesium alloy dense structure, strong
Degree and ductility are better than cast alloy, therefore the exploitation of high-performance wrought magnesium alloy and new production process thereof and technology
Research receives significant attention.
The preparation of wrought magnesium alloy product be by extruding, rolling, magnesium alloy ingot blank carries out by the processing method such as forging
Plastic deformation obtains, and deformation magnesium alloy ingot blank is mainly obtained by melting and casting later.At present, deformation
Mainly molding and semi-continuous casting with the forging type of magnesium alloy ingot blank, molding mode is the one side that comparison is outmoded
Method, is substantially craft or utilizes simple tool to operate, and uses the method to prepare deformation magnesium alloy ingot blank matter
Amount is difficult to ensure that, production efficiency is the lowest, lumber recovery is low, cost is higher；Use the mode of semi-continuous casting
All it is enhanced on ingot blank quality control or in terms of production efficiency than molding, but uses at present
The method prepares some problems that deformation magnesium alloy ingot blank still suffers from, as easily aoxidizing, burn and inspiration capacity
Bigger magnesium alloy fused mass is to use underflow mode or Liquid guiding pump mode when casting, and it is that one is opened that underflow mode casts
Put the drain of formula, easily make magnesium alloy fused mass and air contact, and then cause magnesium alloy fused mass oxidizing fire, make casting
Make control and quality control becomes difficulty.It is to stretch in crucible melt by the pump housing of band blade that Liquid guiding pump mode casts,
Being rotated by the pump housing of band blade and realize drain, the pump housing rotates and easily makes the melt in crucible be agitated, and easily makes the most quiet
Put and be settled down in crucible the flux of bottom and be mingled with or oxide is mingled with and enters in mold with melt by catheter, enter
And be solidified in deformation magnesium alloy ingot blank, such both modes are all difficult to obtain high-quality and the ingot of high qualification rate
Base.It addition, underflow mode is cast is difficult to distance drain, use drain at present to realize distance drain
Pipe drain, but catheter temperature controls extremely difficult, uses resistance heated for controlling temperature mode, and the time is long, drain
Tubular construction is complicated, and fragile cost is high, it is impossible to realizes quickly mending temperature, makes the smooth drain of catheter be restricted, also
It is easily caused catheter blocking；The catheter position control in the mould using resistance heating manner is the most extremely difficult.Become
In shape magnesium alloy ingot blank preparation process, in mold, the flow-dividing control of melt controls most important, and underflow mode is difficult to
Realize docking with shunting disk, it is impossible to realize flow-dividing control and the liquid surface height controlling of melt in mold during stably casting,
The surface quality of ingot blank when leveraging cast, increases ingot casting surface Lathe quantity, have impact on the lumber recovery of ingot blank.
Therefore, based on above-mentioned condition, it is necessary to exploitation processing ease, simple in construction, quick undisturbed can be realized lead
Liquid, production procedure are simple, low cost, process stabilizing, be easily achieved a kind of deformation magnesium alloy of industrialized production
Ingot blank preparation facilities and method increase substantially the quality of deformation magnesium alloy ingot blank.
Summary of the invention
The problem existed for prior art, the present invention provides a kind of deformation magnesium alloy ingot blank preparation facilities and side
Method, apparatus of the present invention simple in construction, processing ease, quick undisturbed drain can be realized, production procedure is simple, become
This is the lowest, process stabilizing, be easily achieved industrialized production.
In order to achieve the above object, a kind of deformation that the present invention provides uses magnesium alloy ingot blank preparation facilities, including dedusting
Device, smelting apparatus, sealing device, drainage set, shunting and flow control device, cast device six part composition.
Described dust arrester is by the cleaning shaft 1 being connected on dust removal machine and the movable type being arranged on smelting furnace fire door
Dust excluding hood 2 forms.
Described smelting apparatus includes crucible for smelting 10 and body of heater 12.
Described sealing device includes having pressurization appendix 4, catheter 6 inserts in crucible insertion hole 15 and hanging
Inserting of catheter 6 is inserted on sealing ring 5, catheter 6 and bell 9 between bell 9, crucible and the bell of hook 25
Sealing ring 7 between hand-hole 15 and sealing fastening clamp apparatus 3.
Described drainage set includes catheter 6, heat pipe nonstorage calorifier 8, catheter external heat preserving device 11 and
Catheter arrangement for adjusting height 23.
Described shunting and flow control device include shunting disk 19 and the lifting shunting disk mechanism 20 with stopper 26；Described
Cast device include mold 14, draw-casting machine 18, dummy bar 17, have to the casting dolly 13 of mold water supply function,
It is placed on the draining pump 21 in casting well 24 and drain pipe 22.
Described cast device includes mold 14, draw-casting machine 18, dummy bar 17, has to the casting of mold water supply function
Make dolly 13, the draining pump 21 being placed in casting well 24 and drain pipe 22.
Described a kind of deformation magnesium alloy ingot blank preparation facilities, wherein crucible 10 is by without nickel heat resisting cast steel or without nickel
Clad steel plate is made；On bell, pressurization appendix 4 is made up of the steel pipe that internal diameter is 15mm～35mm；Bell by
15mm～40mm steel plate is made, and on bell around there is high 10mm～25mm, wide 10mm～20mm
Boss；Sealing ring 5 and 7 is by heat-resisting high temperature is cotton or packing is made.
Described a kind of deformation magnesium alloy ingot blank preparation facilities, wherein catheter 6 is 15mm～35mm by internal diameter
Horizontal length is 1000mm～6000mm stainless steel tube, be enclosed within and stretch in crucible melt internal diameter outside catheter and be
It is 50mm～100mm that the pipe without nickel heat-resisting steel of 50mm～100mm and being enclosed within stretches in mold internal diameter outside catheter
Pipe without nickel heat-resisting steel composition；Heat pipe inserts crucible follower head away from crucible bottom 150mm～400mm；Heat pipe
The voltage that nonstorage calorifier 8 provides is 24V～36V, and electric current is 50A～2000A continuously adjustabe；Outside catheter
Attemperator 11 is made up of heat-preservation cotton；Catheter arrangement for adjusting height 23 is by hydraulicefficiency elevation structure or screw-threaded shaft elevator
Structure forms.
Described a kind of deformation magnesium alloy ingot blank preparation facilities, wherein shunting disk 19 is by corrosion resistant plate or heat resisting steel
Plate processes, generally circular in shape or rectangle, and sheet metal thickness is 0.6mm～2.0mm；Lifting shunting disk mechanism
20 be utilize that bar thick stick principle processes control the shunting disk degree of depth in the mould and then realize magnesium in mold is closed
The control of gold melt liquid level.
Described a kind of deformation magnesium alloy ingot blank preparation facilities, wherein mold 14 is circular or rectangle, inner sleeve
Being processed by wrought aluminium or high-strength graphite, circular mold internal diameter size is 60mm～820mm, a height of
80mm～250mm, a length of 100mm～2000mm of rectangle mold, wide 20mm～600mm, a height of
80mm～250mm；Described draw-casting machine 18 is hydraulic pressure or leading screw or steel wire rope mode is drawn；Described dummy bar 17
It is circular or rectangle, size 1.5mm～3mm less than mold inner sleeve.
Device described in employing prepares deformation magnesium alloy ingot blank technology, comprises the steps:
The first step: on-demand cast magnesium alloy composition carries out weighing, and the raw material after weighing up is put into and is preheating to
In 200 DEG C～500 DEG C of crucibles 10 and heat up, temperature controls at 600 DEG C～800 DEG C, after whole melting sources
Carrying out 20min～50min and stir refine, during refine, at smelting furnace fire door, placed mobile dust excluding hood 2 unlatching remove
Dirt device, along putting sealing ring 5 and adding a cover stove on crucible 10 after after refine, melt temperature reaches 650 DEG C～750 DEG C
Lid, and with sealing fastening clamp apparatus by bell and crucible clamping；
Second step: sealing ring 5 is placed on bell 9 the reserved position, insertion hole 15 inserting catheter 6 place,
Then heat pipe nonstorage calorifier 8 is utilized will to be preheated to catheter 6 one end institute from bell of 650 DEG C～750 DEG C
Reserved insertion hole 15 is inserted, and is put in mold 14 by the other end of catheter 6 simultaneously, and uses catheter height
Adjusting means 23 regulates the catheter 6 position in mold 14, afterwards with sealing fastening clamp apparatus 3 by catheter
6 and bell 9 on insert catheter 6 insertion hole 15 clamping；
3rd step: utilize draw-casting machine 18 elevating function dummy bar 17 to stretch into mold 14 times along 5mm～20mm,
Dummy bar 17 is wiped clean, afterwards utilize lifting shunting disk mechanism 20 shunting disk 19 is placed in mold 14 and with
Catheter 6 is to connecting；
4th step；Need logical cooling water in mold before cast, and shunting disk 19 need to be preheated, preheating temperature
Degree is 500 DEG C～700 DEG C, utilizes heat pipe nonstorage calorifier 8 catheter 6 temperature to be maintained at simultaneously
700 DEG C～750 DEG C；
5th step: after above-mentioned steps is ready to, utilizes the appendix that pressurizes on bell 9 to input dry air in stove
Or argon, furnace pressure controls 0.015～0.05MPa, treats that the melt in crucible 10 is after the pressurizing through catheter 6
After entering shunting disk 19, by catheter arrangement for adjusting height 23 and lifting shunting disk mechanism of lifting shunting disk mechanism
20 melts enter the amount in molds, when under the melt upper surface distance mold entered in mold along 50mm～200mm
Time, startup draw-casting machine 18 draws dummy bar 17 and moves downward, and movement velocity controls
15mm/min～400mm/min；
6th step: when ingot casting reaches predetermined length, stops ventilation pressurization and then stopping catheter 6 in crucible 10
Drain in mold；
7th step: stop draw-casting machine 18 and draw dummy bar 17, treat that in mold 14, melt is all frozen into ingot blank 16
After, cut off logical cooling water in mold 14, remove casting dolly, take out ingot casting, utilize draining pump 21 will cast well
In water discharge through drain pipe 22, prepare next casting time.
Compared with prior art, the invention has the beneficial effects as follows:
(1) the deformation magnesium alloy ingot blank preparation facilities of the present invention is compared with other devices, uses the earthenware to good seal
Pressurization of ventilating in crucible carrys out drain, can steadily regulate pressure by ventilation pressurization, so can realize the control to flow
System.It addition, pressure is smaller when ventilation pressurization, deep by control that the stopper on shunting disk inserts in catheter
Degree controls the gap on catheter and shunting disk between stopper, realizes the control to flow.Be conducive to controlling to melt
The flow of body, and avoid the disturbance of melt in crucible, it is ensured that the derivation of high-quality cleaning magnesium alloy fused mass.
(2) catheter of the prior art is to heat by winding resistance wire, and catheter is the most comparatively short, and cannot
Realize quickly heating.It addition, be wound around Resistant heating mode, the resistance wire life-span is the most comparatively short.The present invention is by drain
Pipe uses low-voltage and high-current heating as resistance, can realize quickly heating, melt when preventing distance drain
Catheter solidifies.The catheter of the present invention can realize distance drain, uses nonstorage calorifier to heat,
Ensure that during drain, catheter quickly to be added and vulcanize temperature liquid, it is to avoid catheter during drain by
Reduce in catheter temperature and cannot realize drain and cast.
(3) deformation of present invention shunting in magnesium alloy ingot blank preparation facilities and flow control device is conducive to control melt to exist
Uniform Flow in mold, shunting disk from catheter liquid out can by shunting disk around tap hole the fastest
Uniformly, the most beneficially even solidification, for thin brilliant for the melt temperature in mold edge, so beneficially mold that flows to of speed
The preparation of homogenizing magnesium alloy ingot blank provides safeguard；Further, since the catheter being inserted in mold and the plug in shunting disk
After son docking, can come on automatic fine regulation catheter and shunting disk between stopper with the buoyancy to shunting disk of melt
Gap, and then can control to flow into the flow in mold, be conducive to controlling stablizing of melt liquid level in mold, enter
And ensure magnesium alloy ingot surface quality during cast, reduce Lathe quantity, improve lumber recovery.
(4) apparatus of the present invention and method processing ease, simple in construction, can realize quick undisturbed drain, produce stream
Journey is simple, low cost, process stabilizing, be easily achieved industrialized production.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the deformation magnesium alloy ingot blank preparation facilities of the present invention；
Fig. 2 be the present invention deformation magnesium alloy ingot blank preparation facilities in bell schematic diagram；
Fig. 3 be the present invention deformation magnesium alloy ingot blank preparation facilities in catheter schematic diagram；
Fig. 4 be the present invention deformation magnesium alloy ingot blank preparation facilities in circular shunting disk schematic diagram；
Fig. 5 be the present invention deformation magnesium alloy ingot blank preparation facilities in rectangle shunting disk schematic diagram；
Fig. 6 be the present invention deformation magnesium alloy ingot blank preparation facilities in lift shunting disk structural scheme of mechanism；
Fig. 7 is the deformation Φ 320mmAZ31B magnesium alloy ingot blank using the present invention to prepare；
Fig. 8 is the deformation Φ 320mmMg-10Gd-7Y-2Zn-0.6Zr magnesium alloy ingot blank using the present invention to prepare；
Fig. 9 is the deformation Φ 500mmZK60 magnesium alloy ingot blank using the present invention to prepare；
Figure 10 is the deformation Φ 800mmAZ80 magnesium alloy ingot blank using the present invention to prepare；
Figure 11 is the deformation 400mm × 1200mmAZ80 magnesium alloy ingot blank using the present invention to prepare.
Wherein, 1-cleaning shaft, 2-movable type dust excluding hood, 3-seals fastening clamp apparatus, 4-pressurization appendix, 5-
Sealing ring between crucible and bell, 6-catheter, the sealing ring between 7-catheter and bell, 8-heat pipe is fast
Speed heater, 9-bell, 10-crucible for smelting, 11-catheter external heat preserving device, 12-body of heater, 13-casting is little
Car, 14-mold, 15-catheter inserts hole, 16-ingot casting, 17-dummy bar, 18-draw-casting machine, 19-shunting disk, 20-
Lifting shunting disk mechanism, 21-draining pump, 22-drain pipe, 23-catheter arrangement for adjusting height, 24-casts well, 25-
Suspension hook, 26-stopper.
Detailed description of the invention
The present invention is further illustrated below by embodiment.It should be understood that embodiments of the invention are for saying
The bright present invention rather than limitation of the present invention.The simple modifications that the present invention is carried out by the essence according to the present invention all belongs to
In the scope of protection of present invention.Alloy used or chemical reagent are commercially available prod.
Embodiment 1:
Weighing raw material 1000kg by AZ31B magnesium alloy component ratio, the raw material after weighing up is put into and is preheating to
In 300 DEG C of crucibles 10 and heat up, temperature controls at 740 DEG C, carries out 30min and stir after whole melting sources
Mix refine, open dust arrester 2 during refine, along putting on crucible 10 after melt temperature reaches 720 DEG C after refine
Sealing ring 5 also adds a cover bell 9, and with sealing fastening clamp apparatus 3 by bell 9 and crucible 10 clamping；Sealing ring is put
On bell 9, the reserved position, insertion hole 15 inserting catheter 6 place, then utilizes heat pipe quickly to add hot charging
Put the insertion hole reserved from bell 8 catheter one end that heat pipe is preheated to 730 DEG C to insert, will lead simultaneously
The other end of liquid pipe 6 is put in mold, and regulates catheter 6 at mold with catheter arrangement for adjusting height 23
In position, afterwards with seal fastening clamp apparatus 3 by catheter 6 and bell 9 clamping；Draw-casting machine 18 is utilized to lift
Dummy bar 17 is stretched under mold along 8mm by function, is wiped clean by dummy bar 17, utilizes lifting shunting disk machine afterwards
Shunting disk is put in the mould and with catheter 6 to connecting by structure 20；Logical cooling water in mold is needed before cast,
And shunting disk 19 need to be preheated, preheating temperature is 600 DEG C, utilizes heat pipe nonstorage calorifier 8 to incite somebody to action simultaneously
Catheter 6 temperature is maintained at 730 DEG C；Utilize on bell 9 pressurize appendix 4 input in stove dry air or
Argon, furnace pressure controls at 0.02MPa, treats that the melt in crucible enters shunting disk through catheter 6 after the pressurizing
After 19, control melt by catheter arrangement for adjusting height 23 and lifting shunting disk mechanism 20 and enter internal diameter 320mm
Amount in high 150mm mold, when under the melt upper surface distance mold entered in mold along 80mm, starts
Draw-casting machine 18 draws dummy bar 17 and moves downward, and movement velocity controls at 60mm/min；When extrusion ingot length reaches
During pre-set value, stop ventilation pressurization and then stopping catheter 6 drain in mold in crucible 10；Stopping is drawn
Casting machine 18 draws dummy bar 17, after melt all solidifies in mold, cuts off logical cooling water in mold, removes
Casting dolly, takes out ingot casting 16, utilizes draining pump to be discharged through drain pipe by the water in casting well, prepares next casting time.
The deformation Φ 320mmAZ31 magnesium alloy ingot blank that the present embodiment is obtained is as shown in Figure 7.
Embodiment 2:
Raw material 1000kg is weighed, former after weighing up by Mg-10Gd-3Y-2Zn-0.6Zr magnesium alloy component ratio
Material is put into and is preheating in 500 DEG C of crucibles 10 and heats up, and temperature controls, at 780 DEG C, to treat whole melting sources
After carry out 40min stir refine, during refine open dust arrester 2, after after refine, melt temperature reaches 780 DEG C
Along putting sealing ring 5 and adding a cover bell 9 on crucible 10, and with sealing fastening clamp apparatus 3 by bell 9 and crucible 10
Clamping；Sealing ring is placed on bell 9 the reserved position, insertion hole 15 inserting catheter 6 place, then utilizes
Heat pipe is preheated to the insertion that catheter one end of 760 DEG C is reserved from bell by heat pipe nonstorage calorifier 8
Hole is inserted, and is put in mold by the other end of catheter 6 simultaneously, and regulates with catheter arrangement for adjusting height 23
Good catheter 6 position in the mould, afterwards with sealing fastening clamp apparatus 3 by catheter 6 and bell 9 clamping；Profit
With draw-casting machine 18 elevating function, dummy bar 17 is stretched under mold along 10mm, dummy bar 17 is wiped clean, afterwards
Lifting shunting disk mechanism 20 is utilized to be put in the mould by shunting disk and with catheter 6 to connecting；Need before cast to
Logical cooling water in mold, and shunting disk 19 need to be preheated, preheating temperature is 700 DEG C, utilizes heat pipe simultaneously
Catheter 6 temperature is maintained at 760 DEG C by nonstorage calorifier 8；Utilize and pressurize appendix 4 on bell 9 in stove
Inputting the air or argon being dried, furnace pressure controls at 0.025MPa, treats that the melt in crucible is after the pressurizing through leading
After liquid pipe 6 enters shunting disk 19, controlled by catheter arrangement for adjusting height 23 and lifting shunting disk mechanism 20
Melt enters the amount in internal diameter 320mm height 180mm mold, when the melt upper surface distance mold entered in mold
Lower along 100mm time, start draw-casting machine 18 and draw dummy bar 17 and move downward, movement velocity controls at 45mm/min；
When extrusion ingot length reaches pre-set value, stop ventilation in crucible 10 and pressurize and then stop catheter 6 to mold
Interior drain；Stop draw-casting machine 18 and draw dummy bar 17, after melt all solidifies in mold, cut off in mold
Logical cooling water, removes casting dolly, takes out ingot casting 16, utilizes draining pump to be discharged through drain pipe by the water in casting well,
Prepare next casting time.
The present embodiment is obtained deformation Φ 320mmMg-10Gd-3Y-2Zn-0.6Zr magnesium alloy ingot blank such as Fig. 8 institute
Show.
Embodiment 3:
Weighing raw material 2000kg by ZK60 magnesium alloy component ratio, the raw material after weighing up is put into and is preheating to
In 400 DEG C of crucibles 10 and heat up, temperature controls at 760 DEG C, carries out 50min and stir after whole melting sources
Mix refine, open dust arrester 2 during refine, along putting on crucible 10 after melt temperature reaches 760 DEG C after refine
Sealing ring 5 also adds a cover bell 9, and with sealing fastening clamp apparatus 3 by bell 9 and crucible 10 clamping；By sealing ring 5
It is placed on bell 9 the reserved position, insertion hole 15 inserting catheter 6 place, then utilizes heat pipe quickly to heat
The insertion hole 15 that heat pipe is preheated to catheter 6 one end of 740 DEG C be reserved from bell 9 by device 8 is inserted,
The other end of catheter 6 is put in mold simultaneously, and regulate catheter 6 with catheter arrangement for adjusting height 23
Position in the mould, afterwards with sealing fastening clamp apparatus 3 by catheter 6 and bell 9 clamping；Utilize draw-casting machine 18
Dummy bar 17 is stretched under mold along 15mm by elevating function, is wiped clean by dummy bar 17, utilizes lifting point afterwards
Shunting disk 19 is put in the mould and with catheter 6 to connecting by flow table mechanism 20；Need in mold logical before cast
Cooling water, and shunting disk 19 need to be preheated, preheating temperature is 700 DEG C, utilizes heat pipe quickly to heat simultaneously
Catheter 6 temperature is maintained at 740 DEG C by device 8；Utilize the appendix 4 that pressurizes on bell 9 to input in stove to be dried
Air or argon, furnace pressure controls at 0.03MPa, treats that the melt in crucible 10 is after the pressurizing through catheter 6
After entering shunting disk 19, control melt enter by catheter arrangement for adjusting height 23 and lifting shunting disk mechanism 20
Enter the amount in internal diameter 500mm height 200mm mold, when edge under the melt upper surface distance mold entered in mold
During 150mm, startup draw-casting machine 18 draws dummy bar 17 and moves downward, and movement velocity controls at 25mm/min；
When extrusion ingot length reaches pre-set value, stop ventilation in crucible 10 and pressurize and then stop catheter 6 to mold
Interior drain；Stop draw-casting machine 18 and draw dummy bar 17, after melt all solidifies in mold, cut off in mold
Logical cooling water, removes casting dolly, takes out ingot casting 16, utilizes draining pump to be discharged through drain pipe by the water in casting well,
Prepare next casting time.
The deformation Φ 500mmZK60 magnesium alloy ingot blank that the present embodiment is obtained is as shown in Figure 9.
Embodiment 4:
Weighing raw material 2500kg by AZ80 magnesium alloy component ratio, the raw material after weighing up is put into and is preheating to
In 350 DEG C of crucibles 10 and heat up, temperature controls at 720 DEG C, carries out 60min and stir after whole melting sources
Mix refine, open dust arrester 2 during refine, along putting on crucible 10 after melt temperature reaches 720 DEG C after refine
Sealing ring 5 also adds a cover bell 9, and with sealing fastening clamp apparatus 3 by bell 9 and crucible 10 clamping；By sealing ring 5
It is placed on bell 9 the reserved position, insertion hole 15 inserting catheter 6 place, then utilizes heat pipe quickly to heat
The insertion hole 15 that heat pipe is preheated to catheter 6 one end of 700 DEG C be reserved from bell 9 by device 8 is inserted,
The other end of catheter 6 is put in mold simultaneously, and regulate catheter 6 with catheter arrangement for adjusting height 23
Position in the mould, afterwards with sealing fastening clamp apparatus 3 by catheter 6 and bell 9 clamping；Utilize draw-casting machine 18
Dummy bar 17 is stretched under mold along 15mm by elevating function, is wiped clean by dummy bar 17, utilizes lifting point afterwards
Shunting disk 19 is put in the mould and with catheter 6 to connecting by flow table mechanism 20；Need in mold logical before cast
Cooling water, and shunting disk 19 need to be preheated, preheating temperature is 670 DEG C, utilizes heat pipe quickly to heat simultaneously
Catheter 6 temperature is maintained at 700 DEG C by device 8；Utilize the appendix 4 that pressurizes on bell 9 to input in stove to be dried
Air or argon, furnace pressure controls at 0.025MPa, treats that the melt in crucible 10 is after the pressurizing through catheter
After 6 enter shunting disk 19, control melt enter by catheter arrangement for adjusting height 23 and lifting shunting disk mechanism 20
Enter the amount in internal diameter 800mm height 230mm mold, when edge under the melt upper surface distance mold entered in mold
During 150mm, startup draw-casting machine 18 draws dummy bar 17 and moves downward, and movement velocity controls at 22mm/min；
When extrusion ingot length reaches pre-set value, stop ventilation in crucible 10 and pressurize and then stop catheter 6 to mold
Interior drain；Stop draw-casting machine 18 and draw dummy bar 17, after melt all solidifies in mold, cut off in mold
Logical cooling water, removes casting dolly, takes out ingot casting 16, utilizes draining pump to be discharged through drain pipe by the water in casting well,
Prepare next casting time.
The deformation Φ 800mmAZ80 magnesium alloy ingot blank that the present embodiment is obtained is as shown in Figure 10.
Embodiment 5:
Weighing raw material 3000kg by AZ31B magnesium alloy component ratio, the raw material after weighing up is put into and is preheating to
In 350 DEG C of crucibles 10 and heat up, temperature controls at 740 DEG C, carries out 60min and stir after whole melting sources
Mix refine, open dust arrester 2 during refine, along putting on crucible 10 after melt temperature reaches 720 DEG C after refine
Sealing ring 5 also adds a cover bell 9, and with sealing fastening clamp apparatus 3 by bell 9 and crucible 10 clamping；By sealing ring 5
It is placed on bell 9 the reserved position, insertion hole 15 inserting catheter 6 place, then utilizes heat pipe quickly to heat
The insertion hole 15 that heat pipe is preheated to catheter 6 one end of 700 DEG C be reserved from bell 9 by device 8 is inserted,
The other end of catheter 6 is put in mold simultaneously, and regulate catheter 6 with catheter arrangement for adjusting height 23
Position in the mould, afterwards with sealing fastening clamp apparatus 3 by catheter 6 and bell 9 clamping；Utilize draw-casting machine 18
Dummy bar 17 is stretched under mold along 10mm by elevating function, is wiped clean by dummy bar 17, utilizes lifting point afterwards
Shunting disk 19 is put in the mould and with catheter 6 to connecting by flow table mechanism 20；Need in mold logical before cast
Cooling water, and shunting disk 19 need to be preheated, preheating temperature is 680 DEG C, utilizes heat pipe quickly to heat simultaneously
Catheter 6 temperature is maintained at 700 DEG C by device 8；Utilize the appendix 4 that pressurizes on bell 9 to input in stove to be dried
Air or argon, furnace pressure controls at 0.025MPa, treats that the melt in crucible 10 is after the pressurizing through catheter
After 6 enter shunting disk 19, control melt enter by catheter arrangement for adjusting height 23 and lifting shunting disk mechanism 20
Enter the amount in cross section 400mm × 1200mm height 250mm mold, when the melt upper surface distance casting entered in mold
Time under mould along 200mm, startup draw-casting machine 18 draws dummy bar 17 and moves downward, and movement velocity controls
22mm/min；When extrusion ingot length reaches pre-set value, stop ventilation pressurization and then stopping drain in crucible 10
Pipe 6 drain in mold；Stop draw-casting machine 18 and draw dummy bar 17, after melt all solidifies in mold, cut
Break logical cooling water in mold, removes casting dolly, takes out ingot casting 16, utilizes draining pump by the water in casting well through row
Water pipe is discharged, and prepares next casting time.
Deformation 400mm × 1200mmAZ31 magnesium alloy ingot blank that the present embodiment is obtained is as shown in figure 11.
Claims (2)
1. magnesium alloy ingot blank preparation method is used in a deformation, it is characterised in that described method uses deformation magnesium alloy ingot blank preparation facilities, and described method comprises the steps:
The first step: on-demand cast magnesium alloy composition carries out weighing, raw material after weighing up is put into and is preheating in 200 DEG C～500 DEG C of crucibles (10) and heats up, temperature controls at 600 DEG C～800 DEG C, after whole melting sources, carry out 20min～50min stir refine, during refine at smelting furnace fire door placed mobile dust excluding hood (2) open dust arrester, put sealing ring (5) on the upper edge of crucible (10) and add a cover bell after melt temperature reaches 650 DEG C～750 DEG C after refine, and with sealing fastening clamp apparatus by bell and crucible clamping；
Second step: sealing ring (5) is placed on upper reserved insertion hole (15) position inserting catheter (6) place of bell (9), then the insertion hole (15) utilizing heat pipe nonstorage calorifier (8) to be reserved from bell catheter (6) one end being preheated to 650 DEG C～750 DEG C is inserted, the other end of catheter (6) is put in mold (14) simultaneously, and regulate the catheter (6) position in mold (14) with catheter arrangement for adjusting height (23), afterwards with sealing fastening clamp apparatus (3) by upper to catheter (6) and bell (9) insertion hole (15) clamping inserting catheter (6)；
3rd step: utilize draw-casting machine (18) elevating function to stretch under mold (14) dummy bar (17) along 5mm～20mm, dummy bar (17) is wiped clean, utilizes lifting shunting disk mechanism (20) to be placed in mold (14) by shunting disk (19) and with catheter (6) to connecting afterwards；
4th step；Logical cooling water in mold is needed before cast, and shunting disk (19) need to be preheated, preheating temperature is 500 DEG C～700 DEG C, utilizes heat pipe nonstorage calorifier (8) that catheter (6) temperature is maintained at 700 DEG C～750 DEG C simultaneously；
5th step: after above-mentioned steps is ready to, bell (9) upper pressurization appendix is utilized to input dry air or argon in stove, furnace pressure controls 0.015～0.05MPa, until the melt in crucible (10) after the pressurizing after catheter (6) enters shunting disk (19), control melt by catheter arrangement for adjusting height (23) and lifting shunting disk mechanism (20) and enter the amount in mold, when under the melt upper surface distance mold entered in mold along 50mm～200mm, start draw-casting machine (18) traction dummy bar (17) to move downward, movement velocity controls at 15mm/min～400mm/min；
6th step: when ingot casting reaches predetermined length, stops ventilation pressurization and then stopping catheter (6) drain in mold in crucible (10)；
7th step: stop draw-casting machine (18) traction dummy bar (17), after in mold (14), melt is all frozen into ingot blank (16), cut off logical cooling water in mold (14), remove casting dolly, take out ingot casting, utilize draining pump (21) to be discharged through drain pipe (22) by the water in casting well, prepare next casting time；
Described deformation magnesium alloy ingot blank preparation facilities includes dust arrester, smelting apparatus, sealing device, drainage set, shunting and flow control device, cast device, it is characterised in that: described dust arrester is by the cleaning shaft (1) being connected on dust removal machine and is arranged on the portable dust excluding hood (2) at smelting furnace fire door and forms；Described smelting apparatus includes crucible for smelting (10) and body of heater (12)；Described sealing device includes having pressurization appendix (4), catheter (6) inserts the insertion hole (15) in crucible and the bell (9) of suspension hook (25), the upper slotting catheter (6) of sealing ring (5), catheter (6) and bell (9) between crucible and bell insertion hole (15) between sealing ring (7) and sealing fastening clamp apparatus (3)；Described drainage set includes catheter (6), heat pipe nonstorage calorifier (8), catheter external heat preserving device (11) and catheter arrangement for adjusting height (23)；Described shunting and flow control device include shunting disk (19) and lifting shunting disk mechanism (20) with stopper (26)；Described cast device includes mold (14), draw-casting machine (18), dummy bar (17), has the draining pump (21) and drain pipe (22) to the casting dolly (13) of mold water supply function, being placed in casting well (24).
2. magnesium alloy ingot blank preparation facilities is used in a deformation, it includes dust arrester, smelting apparatus, sealing device, drainage set, shunting and flow control device, cast device, it is characterised in that: described dust arrester is by the cleaning shaft (1) being connected on dust removal machine and is arranged on the portable dust excluding hood (2) at smelting furnace fire door and forms；Described smelting apparatus includes crucible for smelting (10) and body of heater (12)；Described sealing device includes having pressurization appendix (4), catheter (6) inserts the insertion hole (15) in crucible and the bell (9) of suspension hook (25), the upper slotting catheter (6) of sealing ring (5), catheter (6) and bell (9) between crucible and bell insertion hole (15) between sealing ring (7) and sealing fastening clamp apparatus (3)；Described drainage set includes catheter (6), heat pipe nonstorage calorifier (8), catheter external heat preserving device (11) and catheter arrangement for adjusting height (23)；Described shunting and flow control device include shunting disk (19) and lifting shunting disk mechanism (20) with stopper (26)；Described cast device includes mold (14), draw-casting machine (18), dummy bar (17), has the draining pump (21) and drain pipe (22) to the casting dolly (13) of mold water supply function, being placed in casting well (24)；The using method that it is characterized in that described preparation facilities is:
The first step: on-demand cast magnesium alloy composition carries out weighing, raw material after weighing up is put into and is preheating in 200 DEG C～500 DEG C of crucibles (10) and heats up, temperature controls at 600 DEG C～800 DEG C, after whole melting sources, carry out 20min～50min stir refine, during refine at smelting furnace fire door placed mobile dust excluding hood (2) open dust arrester, put sealing ring (5) on the upper edge of crucible (10) and add a cover bell after melt temperature reaches 650 DEG C～750 DEG C after refine, and with sealing fastening clamp apparatus by bell and crucible clamping；
Second step: sealing ring (5) is placed on upper reserved insertion hole (15) position inserting catheter (6) place of bell (9), then the insertion hole (15) utilizing heat pipe nonstorage calorifier (8) to be reserved from bell catheter (6) one end being preheated to 650 DEG C～750 DEG C is inserted, the other end of catheter (6) is put in mold (14) simultaneously, and regulate the catheter (6) position in mold (14) with catheter arrangement for adjusting height (23), afterwards with sealing fastening clamp apparatus (3) by upper to catheter (6) and bell (9) insertion hole (15) clamping inserting catheter (6)；
3rd step: utilize draw-casting machine (18) elevating function to stretch under mold (14) dummy bar (17) along 5mm～20mm, dummy bar (17) is wiped clean, utilizes lifting shunting disk mechanism (20) to be placed in mold (14) by shunting disk (19) and with catheter (6) to connecting afterwards；
4th step；Logical cooling water in mold is needed before cast, and shunting disk (19) need to be preheated, preheating temperature is 500 DEG C～700 DEG C, utilizes heat pipe nonstorage calorifier (8) that catheter (6) temperature is maintained at 700 DEG C～750 DEG C simultaneously；
5th step: after above-mentioned steps is ready to, bell (9) upper pressurization appendix is utilized to input dry air or argon in stove, furnace pressure controls 0.015～0.05MPa, until the melt in crucible (10) after the pressurizing after catheter (6) enters shunting disk (19), control melt by catheter arrangement for adjusting height (23) and lifting shunting disk mechanism (20) and enter the amount in mold, when under the melt upper surface distance mold entered in mold along 50mm～200mm, start draw-casting machine (18) traction dummy bar (17) to move downward, movement velocity controls at 15mm/min～400mm/min；
6th step: when ingot casting reaches predetermined length, stops ventilation pressurization and then stopping catheter (6) drain in mold in crucible (10)；
7th step: stop draw-casting machine (18) traction dummy bar (17), after in mold (14), melt is all frozen into ingot blank (16), cut off logical cooling water in mold (14), remove casting dolly, take out ingot casting, utilize draining pump (21) to be discharged through drain pipe (22) by the water in casting well, prepare next casting time.
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| CN108465790A (en) * | 2018-04-03 | 2018-08-31 | 东北大学 | It is used to prepare the continuous liquid supply device and application method of the long slab ingot of the big specification of magnesium alloy |
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| CN107030265A (en) * | 2017-05-26 | 2017-08-11 | 威海万华镁业有限公司 | A kind of magnesium alloy semi-continuous casting device and method |
| CN108246991B (en) * | 2018-01-26 | 2022-03-18 | 龙岩学院 | Semi-continuous casting device and method for inhibiting cracking of magnesium alloy ingot blank |
| CN108637200B (en) * | 2018-04-03 | 2019-12-24 | 东北大学 | Large-size magnesium alloy long slab ingot semi-continuous casting device |
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| CN1132710C (en) * | 2001-03-22 | 2003-12-31 | 上海交通大学 | Horizontal conticaster dedicated for Mg-alloy |
| AU2003255156A1 (en) * | 2003-07-24 | 2005-02-14 | Sumitomo Metal Industries, Ltd. | Process for producing magnesium alloy thin sheet and apparatus therefor |
| JP4257646B2 (en) * | 2003-09-17 | 2009-04-22 | 三菱アルミニウム株式会社 | Method and apparatus for manufacturing magnesium strip |
| CN100563859C (en) * | 2007-08-20 | 2009-12-02 | 中铝洛阳铜业有限公司 | A kind of method of utilizing the belt method to carry out continuously casting and rolling to produce deformed magnesium alloy tape volume |
| CN201432083Y (en) * | 2009-07-13 | 2010-03-31 | 淄博宏泰防腐有限公司 | Deformed magnesium alloy ingot casting shunt plate |
| JP5491902B2 (en) * | 2010-02-24 | 2014-05-14 | 株式会社神戸製鋼所 | Continuous casting apparatus, cast rod manufactured using the same, and method |
| CN102284686A (en) * | 2011-08-24 | 2011-12-21 | 东北大学 | Continuous casting device and method of large-size magnesium alloy plate blank by action of combined outfield |
| CN103286286B (en) * | 2012-02-22 | 2016-08-03 | 株式会社神户制钢所 | The continuous casting apparatus that the mo(u)lding of magnesium or magnesium alloy composition is cast continuously and continuous casing |
| CN202804127U (en) * | 2012-09-29 | 2013-03-20 | 陈小苹 | Magnesium alloy continuous casting device |
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