CN107138710A - A kind of the hub extrusion casting device and method of integrated accurate temperature controller and pulsed magnetic field - Google Patents
A kind of the hub extrusion casting device and method of integrated accurate temperature controller and pulsed magnetic field Download PDFInfo
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- CN107138710A CN107138710A CN201710496644.8A CN201710496644A CN107138710A CN 107138710 A CN107138710 A CN 107138710A CN 201710496644 A CN201710496644 A CN 201710496644A CN 107138710 A CN107138710 A CN 107138710A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/02—Pressure casting making use of mechanical pressure devices, e.g. cast-forging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/08—Controlling, supervising, e.g. for safety reasons
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Abstract
A kind of the hub extrusion casting device and method of integrated accurate temperature controller and pulsed magnetic field, the device include upper mould, cooling water pipe, pulsed magnetic field, side form, strong cooling water pipe, lower mould, workbench, extruding drift, upper mould fixed plate, push rod, guide rail, heating tube, casting, sprue cup, stalk, temperature sensor and closing device;Its method is:Before molten metal is filled with die cavity, using the spoke medium position of heating tube preheated mold, when liquid metal filling is finished, the thermal center position of mould is cooled down with the mode that cooling water pipeline is combined using strong cooling waterpipe;The relatively early dendrite formed in the middle part of spoke is crushed using the effect of pulsed magnetic field simultaneously, to ensure the unimpeded and crystal grain thinning of molten metal Feeding channel, and in the presence of pulsed magnetic field, the dendrite that wheel rim and core wheel position are more early formed also is broken, and crystal grain is refined;The purpose of hub cast consecutive solidification under squeeze pressure is realized, reduces the defects such as casting shrinkage cavity shrinkage porosity, casting crystalline grain size is refined, casting comprehensive mechanical property is improved.
Description
Technical field
The invention belongs to metal casting forming technology and mould applications, specially a kind of integrated accurate temperature controller and pulsed magnetic field
Hub extrusion casting device and method.
Background technology
Under normal circumstances, factory produces hub cast using low-pressure casting process.But, the zero of conventional low Foundry Production
The problems such as part is usually present yield strength and relatively low elongation percentage.The wheel hub of conventional low Foundry Production is in core wheel position, drop center portion
Often the loose tendency of shrinkage cavity is larger for position and spoke and wheel rim delivery position.
Currently, low-pressure casting mould for wheel hub, typically comprises only simple water cooling or air-cooled, and be generally only by rule of thumb in casting
Cooling pipe is arranged in mould around part.This pipeline location arranged by rule of thumb is often not most rational position, to institute
The raising for producing the comprehensive mechanical property of casting is extremely limited.And the privileged site of mould can not be realized according to technological requirement
Rational temperature control.Therefore, conventional low casting method is difficult to effectively solve core wheel position, wheel rim position and spoke and wheel
The problems such as Wang Jiaojieweizhichu is also easy to produce shrink defects.
Fig. 1 represents not in the same time, the distribution situation of molten metal in wheel hub (by taking a quarter wheel hub as an example).Wherein, it is semi-transparent
Area pellucida domain representation resolidified region, darker regions represent non-resolidified region, t1, t2, t3, t4Represent different time points, 0<t1<t2<
t3<t4.In figure, in t1Moment, molten metal is completely filled with metal mold cavity just.In t2Solidification completely in the middle part of moment, wheel rim, so that
So that rim upper portion produces the Potential feasibility increase of shrinkage cavity rarefaction defect.In t3Solidification completely in the middle part of moment, spoke so that wheel
Spoke and the isolated molten bath inner metal liquid of wheel rim junction can not obtain feeding, so that the position produces shrinkage cavity rarefaction defect
Potential feasibility increases.It can be found that the jelly in the middle part of wheel rim is disconnected and spoke in the middle part of jelly disconnected cause generation shrinkage cavity in isolated molten bath
Loose possibility increase.
The Chinese patent of Application No. 201510395442.5 proposes to fill the work that type is combined with extrusion solidification using low pressure
Process produces hub cast, to improve the solution that the mechanical property of hub member provides a science.But in the patent
Do not provide reply spoke and wheel rim junction isolated molten bath inner metal liquid can not feeding solution.
The conventional fabrication processes of wheel hub are low pressure castings.Spoke, core wheel and the spoke and wheel rim of low pressure casting wheel hub are handed over
The mechanical property for connecing the positions such as place is relatively low.
The content of the invention
In order to overcome the problem of above-mentioned prior art is present, it is an object of the invention to provide a kind of integrated accurate temperature controller and
The hub extrusion casting device and method of pulsed magnetic field, the present invention is according to technological requirement, before molten metal is filled with die cavity, using adding
The spoke medium position of heat pipe preheated mold, when liquid metal filling is finished, utilizes strong cooling waterpipe and common cooling water
The mode that pipeline is combined cools down the thermal center position of mould, meanwhile, crushed using the effect of pulsed magnetic field more early in the middle part of spoke
The dendrite of formation, to ensure the unimpeded and crystal grain thinning of molten metal Feeding channel, and in the presence of pulsed magnetic field, wheel rim and
The dendrite that core wheel position is more early formed also is broken, and crystal grain is refined;And then, realize hub cast order under squeeze pressure
The purpose of solidification, finally, reduces the defects such as casting shrinkage cavity shrinkage porosity, refines casting crystalline grain size, improve casting comprehensive mechanical property.
In order to achieve the above object, the present invention adopts the following technical scheme that the wheel of a kind of integrated accurate temperature controller and pulsed magnetic field
Hub extrusion casint device, including upper mould 1, cooling water pipe 2, pulsed magnetic field 3, side form 4, strong cooling water pipe 5, lower mould 6, work
Platform 7, extruding drift 8, upper mould fixed plate 9, push rod 10, guide rail 11, heating tube 12, casting 13, sprue cup 14, stalk 15, temperature
Spend sensor 16 and closing device 17;
Annexation is:Fixed lower mould 6 and four guide rails 11 of the lower surrounding of mould 6 are distributed on workbench 7, each led
One side form 4 that can be slided along guide rail 11 is installed on rail 11;The top of upper mould fixed plate 9 is fixed on main hydropress crossbeam
On, the bottom of upper mould fixed plate 9, which is rigidly fixed, goes up mould 1, and under the effect of main hydraulic jack, upper mould fixed plate 9 and upper mould are about 1
It is mobile;The top of extruding drift 8 is connected to the lower end of extrusion oil cylinder, and extrusion oil cylinder is rigidly fixed on upper mould fixed plate 9, works as gold
Belong to liquid to be full of after casting die cavity, extruding drift 8 moves down under extrusion oil cylinder effect and extrudes molten metal;Casting 13 is ejected
Afterwards, extruding drift 8 is moved upwards up to the initial position of setting under extrusion oil cylinder effect;The top connection ejector rod oil cylinder of push rod 10
Lower end, ejector rod oil cylinder is rigidly fixed on upper mould fixed plate 9, and push rod 10 can be slided up and down under ejector rod oil cylinder effect;Fill
During type, push rod 10 is located at initial, set position;After casting 13 solidifies, push rod 10 is moved down and incited somebody to action under ejector rod oil cylinder effect
Casting 13 is ejected;Sprue cup 14 is located at the central part of lower mould 6, and the lower end of sprue cup 14 connects closing device 17, sprue cup 14
Upper end connects the bottom of casting die cavity;Closing device 17 is fixed on the middle part of workbench 7, and the upper end connection of closing device 17 is poured
The bottom of cup 14, the lower end of closing device 17 connects the upper end of stalk 15, and the lower end of stalk 15 is immersed in molten metal;
During liquid metal filling, closing device 17 is in the open position, now, and molten metal passes through stalk 15, closing device 17 and cast gate
Cup 14 enters casting die cavity;Fill after type finishes, closing device 17 closes the bottom of sprue cup 14;
The lower surface of upper mould 1, the lower surface for extruding drift 8, the lower surface of push rod 10, the inner surface of four side forms 4, pour
The geometry cavity that the inner surface of cup 14 and the upper surface of closing device 17 are surrounded jointly is referred to as casting die cavity;
The wheel rim that the thermal center of the upper mould 1 and side form 4 is also easy to produce at spoke delivery position with being provided with strong cooling water
Pipe 5;Upper mould 1, the inner rim neighbouring position of side form 4 and lower mould 6, outer rim neighbouring position and core wheel neighbouring position are provided with cold
But water pipe 2;The strong cooling water pipe 5 and cooling water pipe 2 are connected with intelligence control system;
The spoke medium position of the upper mould 1 and lower mould 4 is provided with heating tube 12, and heating tube 12 connects with intelligence control system
Connect;
The upper mould 1, the wheel rim medium position of lower mould 4 and side form 6, spoke medium position and core wheel outer fix are provided with
Pulsed magnetic field 3, pulsed magnetic field 3 is connected with intelligence control system;
The inner rim position on the top of side form 6 nearby, the outer rim position in the outside of lower mould 4 nearby, upper mould 1 and lower mould 4
Spoke medium position near be provided with temperature sensor 16, temperature sensor 16 is connected with intelligence control system;
In production process, mould 1 and side form 4 in closure lock mould 1 and side form 4, give molten metal pressure, make molten metal successively
Casting die cavity is entered by stalk 15, closing device 17, sprue cup 14;After molten metal is full of casting die cavity, closing device
17 by the bottom lock of sprue cup 14;Then, the molten metal in casting die cavity is under the extruding of extruding drift 8, and in cooling water pipe
2nd, casting 13 is solidified out into the presence of pulsed magnetic field 3, strong cooling water pipe 5 and heating tube 12.
The casting method of the hub extrusion casting device of the integrated accurate temperature controller and pulsed magnetic field, comprises the following steps:
Step one:Screen pack is placed at sprue cup 14, side form 4 is closed, closes mould 1, lock mould 1 and side form 4;
Step 2:Start heating tube 12, the position in preheating corresponding to mould 1 and lower mould 6 in the middle part of spoke is at the same time, warm
The temperature value of surveyed mould correspondence spoke medium position is fed back to intelligence control system by degree sensor 16, when measured value reaches intelligence
Set by control system during temperature value, heating tube 12 can be closed;In process of setting, when temperature sensor 16 surveys mould correspondence
The temperature value of spoke medium position is less than set by intelligence control system during temperature value, is again started up heating tube 12;
Step 3:Molten metal is pressurizeed, molten metal passes sequentially through the closing device 17 of stalk 15 and poured under pressure
Cup 14 enters casting die cavity;In cavity filling process, the temperature value that the temperature sensor 16 positioned at die cavity top will can be measured
Intelligence control system is fed back to, when the temperature value that temperature sensor 16 is measured reaches the setting value of intelligence control system, metal
Liquid is full of casting die cavity, and intelligence control system can control closing device 17 to shut the bottom of sprue cup 14;
Step 4:Unbalanced pulse magnetic field 3, meanwhile, extruding drift 8 is moved down, and extrudes molten metal, at the same time, startup is located at
Cooling water pipe 2 at inner rim, starts and is located at wheel rim and the strong cooling water pipe 5 of spoke junction;Start and be located at core wheel
Cooling water pipe 2;When cooling water pipe 2 and strong cooling water pipe 5 respectively the corresponding measured value of temperature sensor 16 be less than
During the setting value of intelligence control system, intelligence control system reduces common cooling water according to order from top to bottom, from outside to inside
The flow of pipe 2 and the strong reclaimed water of cooling water pipe 5;When the measured value of wheel rim and the temperature sensor 16 of spoke junction is less than
During a certain setting value of intelligence control system, now, wheel rim and the molten metal of spoke junction solidify completely, stop in spoke
The heating tube 12 in portion is heated;When the dwell time reaching the setting value of intelligence control system, now, extruding drift 8 stops to wheel
The molten metal ftercompction of center portion position, stops squeeze casting 13;When reaching setting value between when cooled, strong cooling water pipe 5 is closed
And cooling water pipe 2;
Step 5:Solution locks mould 1 and side form 4, opens side form 4, opens mould 1, ejects casting 13.
Compared to the prior art compared with the present invention possesses following advantage:
(1) heating and cooling of mould privileged site can be realized.So as to according to technological requirement, control mould different parts
Temperature, reaching makes the purpose of casting consecutive solidification, reduces the shrinkage porosity defect of contraction cavity of casting.
(2) dendrite in the middle part of spoke is crushed by pulsed magnetic field, the unimpeded of molten metal Feeding channel is kept, so as to realize casting
The Under Pressure Solidification of part, effectively carries out feeding to casting.Meanwhile, pulsed magnetic field can also crush wheel rim, the dendrite at core wheel position, carefully
Change crystal grain, improve mechanical castings.
(3) squeeze pressure can improve the radiating condition of casting, meanwhile, the cooling of cooling water pipe can also improve the radiating of casting
Condition.Therefore, the hub extrusion casting mould and technique of the integrated accurate temperature controller and pulsed magnetic field can effectively shorten the life of casting
The production cycle.
Brief description of the drawings
Fig. 1 is not in the same time, the distribution situation (by taking a quarter wheel hub as an example) of molten metal in wheel hub, wherein, Fig. 1 (a)
For t1The distribution of moment molten metal, Fig. 1 (b) is t2The distribution of moment molten metal, Fig. 1 (c) is t3The distribution of moment molten metal, figure
1 (d) is t4The distribution of moment molten metal.
Fig. 2 (a) is the hub extrusion casting device figure of integrated accurate temperature controller and pulsed magnetic field of the invention.
Fig. 2 (b) is Fig. 2 (a) partial enlarged drawing.
Embodiment
The present invention is described in further details below in conjunction with the accompanying drawings.
As shown in Fig. 2 a and Fig. 2 b in Fig. 2, the hub extrusion casting of the present invention a kind of integrated accurate temperature controller and pulsed magnetic field
Device, including upper mould 1, cooling water pipe 2, pulsed magnetic field 3, side form 4, strong cooling water pipe 5, lower mould 6, workbench 7, extruding punching
First 8, upper mould fixed plate 9, push rod 10, guide rail 11, heating tube 12, casting 13, sprue cup 14, stalk 15, temperature sensor 16
With closing device 17;
The annexation of each part is:Fixed lower mould 6 and four guide rails 11 of the lower surrounding of mould 6 are distributed on workbench 7,
One side form 4 that can be slided along guide rail 11 is installed on each guide rail 11;The top of upper mould fixed plate 9 is fixed on main hydropress
On crossbeam, the bottom of upper mould fixed plate 9, which is rigidly fixed, goes up mould 1, under the effect of main hydraulic jack, upper mould fixed plate 9 and upper mould 1
Move up and down;The top of extruding drift 8 is connected to the lower end of extrusion oil cylinder, and extrusion oil cylinder is rigidly fixed on upper mould fixed plate 9,
After molten metal is full of casting die cavity, extruding drift 8 moves down under extrusion oil cylinder effect and extrudes molten metal;Casting 13
After being ejected, extruding drift 8 is moved upwards up to the initial position of setting under extrusion oil cylinder effect;The top connection top of push rod 10
The lower end of rod oil cylinder, ejector rod oil cylinder is rigidly fixed on upper mould fixed plate 9, push rod 10 ejector rod oil cylinder effect under, can above and below
Slide;When filling type, push rod 10 is located at initial, set position;After casting 13 solidifies, push rod 10 is under ejector rod oil cylinder effect, to moving down
Move and eject casting 13;Sprue cup 14 is located at the central part of lower mould 6, the lower end connection closing device 17 of sprue cup 14, cast gate
The upper end of cup 14 connects the bottom of casting die cavity;Closing device 17 is fixed on the middle part of workbench 7, the upper end of closing device 17
The bottom of sprue cup 14 is connected, the lower end of closing device 17 connects the upper end of stalk 15, and the lower end of stalk 15 is immersed in gold
Belong in liquid;During liquid metal filling, closing device 17 is in the open position, now, and molten metal passes through stalk 15, closing device 17
And sprue cup 14 enters casting die cavity;Fill after type finishes, closing device 17 closes the bottom of sprue cup 14;
The lower surface of upper mould 1, the lower surface for extruding drift 8, the lower surface of push rod 10, the inner surface of four side forms 4, pour
The geometry cavity that the inner surface of cup 14 and the upper surface of closing device 17 are surrounded jointly is referred to as casting die cavity;
The wheel rim that the thermal center of the upper mould 1 and side form 4 is also easy to produce at spoke delivery position with being provided with strong cooling water
Pipe 5;Upper mould 1, the inner rim neighbouring position of side form 4 and lower mould 6, outer rim neighbouring position and core wheel neighbouring position are provided with cold
But water pipe 2;The strong cooling water pipe 5 and cooling water pipe 2 are connected with intelligence control system;
The spoke medium position of the upper mould 1 and lower mould 4 is provided with heating tube 12, and heating tube 12 connects with intelligence control system
Connect;
The upper mould 1, the wheel rim medium position of lower mould 4 and side form 6, spoke medium position and core wheel outer fix are provided with
Pulsed magnetic field 3, pulsed magnetic field 3 is connected with intelligence control system;
The inner rim position on the top of side form 6 nearby, the outer rim position in the outside of lower mould 4 nearby, upper mould 1 and lower mould 4
Spoke medium position near be provided with temperature sensor 16, temperature sensor 16 is connected with intelligence control system;
In production process, mould 1 and side form 4 in closure lock mould 1 and side form 4, give molten metal pressure, make molten metal successively
Casting die cavity is entered by stalk 15, closing device 17, sprue cup 14;After molten metal is full of casting die cavity, closing device
17 by the bottom lock of sprue cup 14;Then, the molten metal in casting die cavity is under the extruding of extruding drift 8, and in cooling water pipe
2nd, casting 13 is solidified out into the presence of pulsed magnetic field 3, strong cooling water pipe 5 and heating tube 12.
The present invention method and step be:
Step one:Screen pack is placed at sprue cup 14, side form 4 is closed, closes mould 1, lock mould 1 and side form 4;
Step 2:Start heating tube 12, the position in preheating corresponding to mould 1 and lower mould 6 in the middle part of spoke is at the same time, warm
The temperature value of surveyed mould correspondence spoke medium position is fed back to intelligence control system by degree sensor 16, when measured value reaches intelligence
Can be set by control system during temperature value, such as when molten metal is A356 aluminium alloys, the set temperature value is 150 DEG C to 700 DEG C
In the range of a certain numerical value, close heating tube 12;In process of setting, when temperature sensor 16 is surveyed in the middle part of mould correspondence spoke
The temperature value of position is less than set by intelligence control system during temperature value, such as when molten metal is A356 aluminium alloys, the setting temperature
Angle value is a certain numerical value in the range of 150 DEG C to 700 DEG C, is again started up heating tube 12;
Step 3:Molten metal is pressurizeed, molten metal passes sequentially through the closing device 17 of stalk 15 and poured under pressure
Cup 14 enters casting die cavity;In cavity filling process, the temperature value that the temperature sensor 16 positioned at die cavity top will can be measured
Intelligence control system is fed back to, when the temperature value that temperature sensor 16 is measured reaches the setting value of intelligence control system, is such as worked as
When molten metal is A356 aluminium alloys, the set temperature value is a certain numerical value in the range of 150 DEG C to 700 DEG C, and molten metal is full of casting
Part die cavity, intelligence control system can control closing device 17 to shut the bottom of sprue cup 14;
Step 4:Unbalanced pulse magnetic field 3, meanwhile, extruding drift 8 is moved down, and extrudes molten metal, at the same time, startup is located at
Cooling water pipe 2 at inner rim, starts and is located at wheel rim and the strong cooling water pipe 5 of spoke junction;Start and be located at core wheel
Cooling water pipe 2;When cooling water pipe 2 and strong cooling water pipe 5 respectively the corresponding measured value of temperature sensor 16 be less than
During the setting value of intelligence control system, such as when molten metal is A356 aluminium alloys, the set temperature value is 150 DEG C to 700 DEG C models
Enclose interior a certain numerical value, intelligence control system according to order from top to bottom, from outside to inside, reduce common cooling water pipe 2 and
The flow of the strong reclaimed water of cooling water pipe 5;When the measured value of wheel rim and the temperature sensor 16 of spoke junction is controlled less than intelligence
During a certain setting value of system processed, such as when molten metal is A356 aluminium alloys, the set temperature value is 150 DEG C to 700 DEG C scopes
Interior a certain numerical value, now, wheel rim and the molten metal of spoke junction solidify completely, stop adding the heating tube 12 in the middle part of spoke
Heat;When the dwell time reaching the setting value of intelligence control system, such as when molten metal is A356 aluminium alloys, the setting time value
For a certain numerical value in the range of 20s to 400s, now, extruding drift 8 stops the molten metal ftercompction to core wheel position, stops extruding
Casting 13;When reaching setting value between when cooled, such as when molten metal be A356 aluminium alloys when, the setting time value be 20s extremely
A certain numerical value in the range of 400s, closes strong cooling water pipe 5 and cooling water pipe 2;
Step 5:Solution locks mould 1 and side form 4, opens side form 4, opens mould 1, ejects casting 13.
Claims (2)
1. the hub extrusion casting device of a kind of integrated accurate temperature controller and pulsed magnetic field, it is characterised in that:Including upper mould (1), cold
But water pipe (2), pulsed magnetic field (3), side form (4), strong cooling water pipe (5), lower mould (6), workbench (7), extruding drift
(8), upper mould fixed plate (9), push rod (10), guide rail (11), heating tube (12), casting (13), sprue cup (14), stalk
(15), temperature sensor (16) and closing device (17);
Annexation is:The upper fixed lower mould (6) of workbench (7) and four guide rails (11) for being distributed in lower mould (6) surrounding, each
One side form (4) that can be slided along guide rail (11) is installed on guide rail (11);The top of upper mould fixed plate (9) is fixed on main liquid
On press crossbeam, the bottom of upper mould fixed plate (9), which is rigidly fixed, goes up mould (1), under the effect of main hydraulic jack, upper mould fixed plate
And upper mould (1) is moved up and down (9);The top of extruding drift (8) is connected to the lower end of extrusion oil cylinder, and extrusion oil cylinder is rigidly fixed in
On upper mould fixed plate (9), after molten metal is full of casting die cavity, extruding drift (8) is moved down simultaneously under extrusion oil cylinder effect
Extrude molten metal;After casting (13) is ejected, extruding drift (8) is moved upwards up to the initial bit of setting under extrusion oil cylinder effect
Put;The top of push rod (10) connects the lower end of ejector rod oil cylinder, and ejector rod oil cylinder is rigidly fixed on upper mould fixed plate (9), push rod
(10) under ejector rod oil cylinder effect, it can slide up and down;When filling type, push rod (10) is located at initial, set position;Casting (13) coagulates
Gu after, push rod (10) moves down under ejector rod oil cylinder effect and ejects casting (13);Sprue cup (14) is located at lower mould (6)
Central part, the lower end connection closing device (17) of sprue cup (14), the upper end of sprue cup (14) connects the bottom of casting die cavity;
Closing device (17) is fixed on the middle part of workbench (7), the bottom of the upper end connection sprue cup (14) of closing device (17), sealing
The upper end of the lower end connection stalk (15) of device (17), the lower end of stalk (15) is immersed in molten metal;Liquid metal filling
When, closing device (17) is in the open position, now, and molten metal passes through stalk (15), closing device (17) and sprue cup
(14) casting die cavity is entered;Fill after type finishes, the bottom of closing device (17) closing sprue cup (14);
The lower surface of upper mould (1), the lower surface of extruding drift (8), the lower surface of push rod (10), the inner surface of four side forms (4),
The geometry cavity that the inner surface of sprue cup (14) and the upper surface of closing device (17) are surrounded jointly is referred to as casting die cavity;
The wheel rim that the thermal center of the upper mould (1) and side form (4) is also easy to produce at spoke delivery position with being provided with strong cooling water
Manage (5);Inner rim neighbouring position, outer rim neighbouring position and the core wheel neighbouring position of upper mould (1), side form (4) and lower mould (6)
It is provided with cooling water pipe (2);The strong cooling water pipe (5) and cooling water pipe (2) are connected with intelligence control system;
The spoke medium position of the upper mould (1) and lower mould (4) is provided with heating tube (12), heating tube (12) and intelligent control system
System connection;
The upper mould (1), the wheel rim medium position of lower mould (4) and side form (6), spoke medium position and core wheel outer fix are set
There is pulsed magnetic field (3), pulsed magnetic field (3) is connected with intelligence control system;
The outer rim position of the inner rim position on side form (6) top nearby, on the outside of lower mould (4) nearby, upper mould (1) and lower mould
(4) temperature sensor (16) is provided near spoke medium position, temperature sensor (16) is connected with intelligence control system;
In production process, mould (1) and side form (4) in closure lock mould (1) and side form (4), give molten metal pressure, make molten metal
Pass sequentially through stalk (15), closing device (17), sprue cup (14) and enter casting die cavity;When molten metal is full of casting die cavity
Afterwards, closing device (17) is by sprue cup (14) bottom lock;Then, the squeezing in extruding drift (8) of the molten metal in casting die cavity
Pressure, and be frozen into the presence of cooling water pipe (2), pulsed magnetic field (3), strong cooling water pipe (5) and heating tube (12)
For casting (13).
2. the casting method of the hub extrusion casting device of integrated accurate temperature controller and pulsed magnetic field, its feature described in claim 1
It is:Comprise the following steps:
Step one:Screen pack is placed at sprue cup (14) place, side form (4) is closed, closes mould (1), lock mould (1) and side form (4);
Step 2:Start heating tube (12), the position in preheating corresponding to mould (1) and lower mould (6) in the middle part of spoke, at the same time,
The temperature value of surveyed mould correspondence spoke medium position is fed back to intelligence control system by temperature sensor (16), when measured value reaches
To set by intelligence control system during temperature value, heating tube (12) is closed;In process of setting, when temperature sensor (16) is surveyed
The temperature value of mould correspondence spoke medium position is less than set by intelligence control system during temperature value, is again started up heating tube
(12);
Step 3:Molten metal is pressurizeed, molten metal passes sequentially through stalk (15) closing device (17) and poured under pressure
Cup (14) enters casting die cavity;In cavity filling process, the temperature that the temperature sensor (16) positioned at die cavity top will can be measured
Angle value feeds back to intelligence control system, when the temperature value that temperature sensor (16) is measured reaches the setting value of intelligence control system
When, molten metal is full of casting die cavity, and intelligence control system can control closing device (17) to shut sprue cup (14) bottom;
Step 4:Unbalanced pulse magnetic field (3), meanwhile, extruding drift (8) is moved down, and extrudes molten metal, at the same time, startup is located at
Cooling water pipe (2) at inner rim, starts and is located at wheel rim and the strong cooling water pipe (5) of spoke junction;Start and be located at wheel
Cooling water pipe (2) at the heart;When cooling water pipe (2) and strong cooling water pipe (5) distinguish corresponding temperature sensor
(16) measured value be less than intelligence control system setting value when, intelligence control system according to order from top to bottom, from outside to inside,
Reduce the flow of common cooling water pipe (2) and strong cooling water pipe (5) reclaimed water;When the temperature of wheel rim and spoke junction is passed
When the measured value of sensor (16) is less than a certain setting value of intelligence control system, now, wheel rim and the molten metal of spoke junction
Solidification completely, stops heating the heating tube (12) in the middle part of spoke;When the dwell time reaching the setting value of intelligence control system,
Now, extruding drift (8) stops the molten metal ftercompction to core wheel position, stops squeeze casting (13);Reach and set between when cooled
During definite value, strong cooling water pipe (5) and cooling water pipe (2) are closed;
Step 5:Solution locks mould (1) and side form (4), opens side form (4), opens mould (1), ejection casting (13).
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CN110142393A (en) * | 2019-06-17 | 2019-08-20 | 北京北方车辆集团有限公司 | Liquid forging microlight-type wheel disc assembly forming process and mold and system |
CN110303136A (en) * | 2019-07-11 | 2019-10-08 | 北京航空航天大学青岛研究院 | A kind of casting method improving large-sized aluminium alloy wheel mechanical property |
CN114406237A (en) * | 2021-12-23 | 2022-04-29 | 龙岩市壹荣铸造有限公司 | Container corner fitting metal mold and pouring process thereof |
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CN117548649A (en) * | 2024-01-10 | 2024-02-13 | 中信戴卡股份有限公司 | Casting method for temperature-pressure flow multi-field cooperative control, control device and application thereof |
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