CN209255787U - The integration apparatus of accurate control solidification and waste heat homogenization - Google Patents
The integration apparatus of accurate control solidification and waste heat homogenization Download PDFInfo
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- CN209255787U CN209255787U CN201822094523.3U CN201822094523U CN209255787U CN 209255787 U CN209255787 U CN 209255787U CN 201822094523 U CN201822094523 U CN 201822094523U CN 209255787 U CN209255787 U CN 209255787U
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- waste heat
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- heat homogenization
- integration apparatus
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Abstract
The utility model relates to the integration apparatus of a kind of accurate control solidification and waste heat homogenization, belong to melt control solidification and Field of Heat-treatment.The equipment is made of U-shaped solid liquid interface the lowest point tracing system, spray system, the outer field system of auxiliary and waste heat homogenization systems；U-shaped solid liquid interface the lowest point tracing system is made of thermocouple, elevating lever and automatic control module, and thermocouple and elevating lever are connect with automatic control module respectively；Spray system is set to above waste heat homogenization systems；Outer field system is assisted to be set to around spray system and/or be set to mould inside；When equipment work, mold realizes the movement from spray system to waste heat homogenization systems under elevating lever effect, makes to have solidified part in mold in real time into waste heat homogenization systems.The equipment precisely implements spraying cooling by tracking solid liquid interface, in conjunction with outer field action, realizes the refinement of solidified structure and the homogenization of solute element；Energy consumption can substantially be lowered simultaneously.
Description
Technical field
The utility model relates to the integration apparatus of a kind of accurate control solidification and waste heat homogenization, in particular to it is a kind of will
The energy-saving equipment that melt accurately controls solidification and homogenization combines belongs to melt control solidification and Field of Heat-treatment.
Background technique
Metal product is divided into casting and plastic deformation part two major classes, and plastic deformation part is ingot casting is forged, squeezes, rolls etc.
Forging, squeeze wood, plate and the band of plastic deformation method preparation.Compared with cast member, deformable member usually has more excellent
Mechanical property, may be used as load-carrying construction part.The common manufacturing method of deformable member ingot casting is semi-continuous casting and molding, is partly connected
The high production efficiency of continuous casting, solidified structure is tiny, and ingot blank that hot cracking tendency small low for alloying level generallys use half
Continuously casting.For big section, high-alloying, big hot cracking tendency, big solidification shrinkage ingot casting, such as Mg-Zn system magnesium alloy and height
Content of rare earth magnesium alloy generallys use molding.
The quality of modified product depend greatly on the degree of purity of ingot casting, solidified structure degree of refinement and uniformly
The dissolution degree of coarse cocrystalization compound after change processing.Currently, the molding production technology of industrialization ingot casting are as follows: alloy melting ---
--- being poured into mold, --- melt solidifies in mold --- demoulding and turnery processing ---, and chill casting ingot is warming up to solid phase to cleaning molten
It is homogenized under line.In common process of setting, generallys use spraying to outer mold wall, water spray mode and accelerate solidification speed
Degree.Although this method can effectively increase solidification rate, dendrite is refined, as excessive temperature differentials, adds up biggish contraction
Deflection and shrinkage stress are easy to cause cracking, in addition, ingot casting, there are gross segregation, coincidence gold element is low there are ratio segregation
Melting element eventually leads to the greatest differences in ingot casting there are chemical component there are inverse segregation.On the other hand, common homogenization
Technique is that the chill casting ingot of turnery processing is reheated to subsolidus, causes the consumption of the energy, larger for sectional dimension
Ingot casting, energy consumption is huge.
Utility model content
For the deficiency of existing metal ingot mold casting technology, the utility model provides the accurate control solidification of one kind and waste heat is equal
Homogenized integration apparatus.
A kind of integration apparatus of accurate control solidification and waste heat homogenization, for molding in production technology, the equipment is by U
Four type solid liquid interface the lowest point tracing system, spray system, the outer field system of auxiliary and waste heat homogenization systems parts form；It is described
U-shaped solid liquid interface the lowest point tracing system by be set to mold center's axis thermocouple, be set to mold bottom elevating lever and from
Dynamic control module composition, the thermocouple and elevating lever are connect with automatic control module respectively；The waste heat homogenization systems
Positioned at lower part；The spray system is set to above waste heat homogenization systems；The outer field system of the auxiliary is set to spray
Around system and/or it is set to mould inside；When equipment works, mold is realized under elevating lever effect from spray system to remaining
The movement of heat uniforming system makes to have solidified part in mold in real time into waste heat homogenization systems.
In the tracing system of U-shaped solid liquid interface the lowest point, upper brace is arranged in the elevating lever top, and the mold is placed
On upper brace；The lower end of the thermocouple is set to solid liquid interface or more, close to the position of melt liquid phase region bottom, certainly
The lifting of dynamic control module control elevating lever, makes the temperature T of thermocouple measurement be maintained at a certain temperature T ' of solidus or more, excellent
Choosing, the temperature T ' is 5 DEG C -15 DEG C higher than solidus temperature, such as the solid liquid interface mushy zone temperature that T ' is the alloy system.Thermoelectricity
Occasionally by the temperature T real-time Transmission of measurement to automatic control module, it is assumed that T ' is a certain temperature of solidus or more, automatic control module
Relatively T and T ' moves down elevating lever slowly as T < T ' in real time, until T=T '.
Spray head, control valve and the automatic control module group that the spray system is arranged by the array around mold
At control valve is used to adjust the flow intensity of spray head, and automatic control module realizes the automatic of spraying intensity by adjusting control valve
Change control.The spraying intensity of the spray head of different height is controlled by automatic control module, and the spraying intensity of spray head is gradually from bottom to top
It reduces, and a certain range (emitting mouth region) does not spray under melt liquid level in mold, to realize consecutive solidification from bottom to top.
The outer field system of the auxiliary by the electromagnetic stirring system being set to outside mold and the ultrasound being set in mold or
The lower end of current system composition, ultrasound or current system is set to solid liquid interface or more.In process of setting, by electromagnetic field, ultrasound
Oscillator field, electric field are applied to liquid phase region and mushy zone, evenly dispersedization of dendrite fragmentation and alloying element are realized, thus realization group
It knits refinement and solute homogenizes.
The waste heat homogenization systems are made of pit furnace and connected temperature control module, pass through elevating lever
The lifting for controlling mold, enters the part that solid phase has been frozen into mold in pit furnace.Guarantee that furnace temperature is constant reasonable
Homogenization temperature energy consumption can be greatly reduced due to the solidification waste heat made full use of.Spray system and electromagnetic stirring system position
In the top of pit furnace, arranged around mold.
Ingot mold top is equipped with thermal insulation layer, and 300mm range is to emit mouth region under melt liquid level, and it is heat-insulated that mold emits mouth region package
Layer.
The utility model has the following beneficial effects:
(1) the utility model precisely implements spraying cooling, and realize spraying intensity from solid-liquid circle by tracking solid liquid interface
Face to riser end by being controlled to weak gradient by force, meanwhile, in conjunction with electromagnetic agitation, ultrasonic vibration and electric field action, realize solidification
The refinement of tissue and the homogenization of solute element.
(2) solid liquid interface solid phase below is sent into pit furnace by tracking solid liquid interface by the utility model in real time
It is homogenized, solidification waste heat can be made full use of, to substantially lower energy consumption.
Detailed description of the invention
Fig. 1 is that the accurate control solidification of the utility model homogenizes the schematic diagram of structure of integration apparatus with waste heat.
Main appended drawing reference explanation:
1 ingot mold, 2 solid phase area
3 liquid phase region, 4 solid liquid interface (mushy zone)
5 elevating lever, 6 pit furnace
7 electromagnetic stirring system, 8 spray system
9 thermocouple, 10 ultrasound or current system
Specific embodiment
As shown in Figure 1, the accurate control solidification of the utility model and the integration apparatus of waste heat homogenization are by U-shaped solid-liquid circle
Four face the lowest point tracing system, spray system 8, the outer field system of auxiliary and waste heat homogenization systems parts form.Waste heat homogenization
System is located at lower part；Spray system 8 is set to above waste heat homogenization systems；Outer field system is assisted to be set to spray system 8
Around and/or it is set to inside ingot mold 1；When equipment works, ingot mold 1 is realized under elevating lever effect from spray system
8 movement to waste heat homogenization systems realizes that part has been solidified in ingot mold 1 enters waste heat homogenization systems in real time.
U-shaped solid liquid interface the lowest point tracing system is by positioned at the thermocouple 9 of 1 central axis of ingot mold, elevating lever 5 and automatic control
Molding block composition, thermocouple 9 and elevating lever 5 are connect with automatic control module respectively；Upper brace is set at the top of elevating lever 5, is cast
Ingot mould tool 1 is placed on upper brace；Thermocouple 9 is set to the bottom of 3 central axis of melt liquid phase region in ingot mold 1, passes through
Automatic control module controls the lifting of elevating lever 5, and the temperature T for measuring thermocouple 9 is maintained at a certain temperature T ' of solidus or more.
The function of the system is: in melt sequence from low to uper part process of setting, 3 upper temp of liquid phase region is consistently greater than temperature of lower, heat
Galvanic couple 9 measures 3 central axis bottom temp T of liquid phase region, and by the temperature value real-time Transmission to automatic control module, it is assumed that T ' is solid
More than phase line a certain temperature, automatic control module compare T and T ' in real time, as T < T ', enable elevating lever 5 slowly move down, directly
To T=T '.
Spray head, control valve and the automatic control module group that spray system 8 is arranged by the array around ingot mold 1
At the spraying intensity of the spray head of different height is controlled by automatic control module, and spraying intensity gradually decreases from bottom to top, and liquid level
Lower a certain range does not spray, to realize consecutive solidification from bottom to top, as be respectively from top to bottom in Fig. 1 mold liquid phase region 3,
Solid liquid interface 4 and solid phase area 2.
Assist electromagnetic stirring system 7 of the outer field system by being located at outside mold and ultrasound or current system 10 in mold
It forms, in process of setting, electromagnetic field, ultrasonic vibration field, electric field is applied to liquid phase region and mushy zone, realize dendrite fragmentation and conjunction
Evenly dispersedization of gold element, to realize that structure refinement and solute homogenize.
Waste heat homogenization systems are made of pit furnace 6 and temperature control module, and temperature control module is connected with pit furnace 6
It connects, the lifting of ingot mold 1 is controlled by elevating lever 5, the part for being frozen into solid phase in ingot mold 1 is made to enter the heating of well formula
In furnace 6.Energy consumption can be greatly reduced due to the solidification waste heat made full use of in reasonable homogenization temperature by guaranteeing that furnace temperature is constant.
Below with VW75 (nominal composition Mg-7wt.%Gd-5wt.%Y-1wt.%Nd-0.5wt.%Zr) magnesium-rare earth
For the preparation of ingot casting, to illustrate the application method of the utility model device.
Feed intake and melt transfer situation: charged material weight 550Kg shifts melt weight 360Kg, 1 inner cavity specification of ingot mold:
Diameter 410mm, high 1700mm.800 DEG C of initial melt temperature in ingot mold 1, about 630 DEG C of the alloy solidus temperature.
Equipment body by elevating lever 5, pit furnace 6, electromagnetic stirring system 7, spray system 8, thermocouple 9 and ultrasound or
Current system 10 is constituted.Spray system 8 and electromagnetic stirring system 7 are located at the top of pit furnace 6, arrange around mold；Heat
Galvanic couple 9 and ultrasound or current system 10 are located at mould inside.
Step 1: elevating lever 5 rises, and upper brace is raised to 6 top of pit furnace；Pit furnace 9 opens in advance
It is dynamic, furnace temperature is constant at 525 DEG C；After alloy melt is transferred to ingot mold 1, ingot mold 1 is placed on to the upper flat of elevating lever 5
On platform, 1 top of ingot mold covers thermal insulation layer, and 300mm range is to emit mouth region under liquid level, emits mouth region and can wrap and wraps up in thermal insulation layer.
Step 2: placing thermocouple 9 and ultrasound or current system 10,9 main body of thermocouple are located in 1 inner cavity of ingot mold
The ultrasonic horn or electrode stem of center portion axis, ultrasound or current system 10 are arranged according to the optimum efficiency of analog simulation.Thermoelectricity
Even 9 are located at 4 or more solid liquid interface with ultrasonic or current system 10 lower end.
Step 3: opening automatic control module, each system of equipment brings into operation.Spray system 8 is to 4 the lowest point of solid liquid interface
The above liquid phase region 3 and mushy zone carry out spraying cooling, and the spray head for emitting mouth region or more is closed, and spraying intensity is by strong from bottom to up
It dies down, guarantees that 3 upper temp of liquid phase region is consistently greater than temperature of lower, realize consecutive solidification from bottom to up.U-shaped solid liquid interface paddy
Bottom tracing system determines the position of solid liquid interface 4 in real time, and thermocouple 9 measures 3 central axis bottom temp T of liquid phase region, and by the temperature
T ' is set as 640 DEG C to automatic control module by angle value real-time Transmission, and automatic control module compares T and T ' in real time, as T < T ',
Elevating lever 5 is enabled slowly to move down, until T=T '.U-shaped 4 the lowest point of solid liquid interface solid phase area 2 below fully enters the heating of well formula
Furnace 6, in 525 DEG C of progress waste heat homogenization.Electromagnetic stirring system 7 and ultrasound or current system 10 formed coupled field, to melt into
Row forced convertion is crushed dendrite, thus thinning microstructure, and weaken the gross segregation of solute element.
Step 4: when emitting above mouth region arrival pit furnace, by the ultrasound of thermocouple 9 and ultrasound or current system 10
Stick or electrode bar remove ingot mold 1, close U-shaped solid liquid interface the lowest point tracing system, spray system 8,7 and of electromagnetic stirring system
Ultrasound or current system 10.Ingot casting continuation carries out Homogenization Treatments 48 hours in pit furnace 6.
Embodiment of above is merely to illustrate the utility model, and is not limitation of the utility model, related technology neck
The those of ordinary skill in domain can also make various structure tune in the case where not departing from the spirit and scope of the utility model
The replacement of whole and device, all equivalent technical solutions also belong within the scope and protection scope of the utility model.
Claims (10)
1. a kind of integration apparatus of accurate control solidification and waste heat homogenization, it is characterised in that: the equipment is by U-shaped solid liquid interface
The lowest point tracing system, spray system, the outer field system of auxiliary and waste heat homogenization systems composition；The U-shaped solid liquid interface the lowest point
Tracing system is by being set to the thermocouple of mold center's axis, being set to the elevating lever of mold bottom and automatic control module forms, institute
The thermocouple and elevating lever stated are connect with automatic control module respectively；The spray system is set on waste heat homogenization systems
Side；The outer field system of the auxiliary is set to around spray system and/or is set to mould inside；When equipment works, mold
The movement from spray system to waste heat homogenization systems is realized under elevating lever effect, makes to have solidified part entrance in real time in mold
Waste heat homogenization systems.
2. the integration apparatus of accurate control solidification and waste heat homogenization according to claim 1, it is characterised in that: described
Elevating lever top upper brace is set, the mold is placed on upper brace；The lower end of the thermocouple is set to
It is more than solid liquid interface.
3. the integration apparatus of accurate control solidification and waste heat homogenization according to claim 1, it is characterised in that: described
Automatic control module control elevating lever lifting, so that the temperature T of thermocouple measurement is maintained at a certain temperature of solidus or more
T′。
4. the integration apparatus of accurate control solidification and waste heat homogenization according to claim 3, it is characterised in that: described
Temperature T ' it is 5 DEG C -15 DEG C higher than the solidus temperature of melt.
5. the integration apparatus of accurate control solidification and waste heat homogenization according to claim 1, it is characterised in that: described
Spray system be made of spray head, control valve and the automatic control module of the array arrangement around the mold, from bottom to top
The spraying intensity of spray head gradually decreases.
6. the integration apparatus of accurate control solidification and waste heat homogenization according to claim 1, it is characterised in that: described
The outer field system of auxiliary be made of the electromagnetic stirring system being set to outside mold and the ultrasound being set in mold or current system.
7. the integration apparatus of accurate control solidification and waste heat homogenization according to claim 6, it is characterised in that: described
Ultrasound or the lower end of current system be set to solid liquid interface or more.
8. the integration apparatus of accurate control solidification and waste heat homogenization according to claim 1, it is characterised in that: described
Waste heat homogenization systems be made of pit furnace and connected temperature control module；The liter of mold is controlled by elevating lever
Drop, enters the part that solid phase has been frozen into mold in pit furnace.
9. the integration apparatus of accurate control solidification and waste heat homogenization according to claim 1, it is characterised in that: described
Mold top be equipped with thermal insulation layer.
10. the integration apparatus of accurate control solidification and waste heat homogenization according to claim 9, it is characterised in that: institute
The mold stated emits mouth region package thermal insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822094523.3U CN209255787U (en) | 2018-12-13 | 2018-12-13 | The integration apparatus of accurate control solidification and waste heat homogenization |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822094523.3U CN209255787U (en) | 2018-12-13 | 2018-12-13 | The integration apparatus of accurate control solidification and waste heat homogenization |
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| Publication Number | Publication Date |
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| CN209255787U true CN209255787U (en) | 2019-08-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115815544A (en) * | 2022-12-27 | 2023-03-21 | 河南科技大学 | Crystallizer, continuous casting device and method for measuring position of solid-liquid interface |
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2018
- 2018-12-13 CN CN201822094523.3U patent/CN209255787U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115815544A (en) * | 2022-12-27 | 2023-03-21 | 河南科技大学 | Crystallizer, continuous casting device and method for measuring position of solid-liquid interface |
| CN115815544B (en) * | 2022-12-27 | 2024-03-26 | 河南科技大学 | Crystallizer, continuous casting device and method for determining solid-liquid interface position |
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