CN105537540A - Preparation method and preparation equipment for semi-solid slurry - Google Patents
Preparation method and preparation equipment for semi-solid slurry Download PDFInfo
- Publication number
- CN105537540A CN105537540A CN201610006207.9A CN201610006207A CN105537540A CN 105537540 A CN105537540 A CN 105537540A CN 201610006207 A CN201610006207 A CN 201610006207A CN 105537540 A CN105537540 A CN 105537540A
- Authority
- CN
- China
- Prior art keywords
- slurrying
- rod
- liquid
- temperature
- metal bath
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
Abstract
The invention discloses a preparation method for semi-solid slurry. The preparation method comprises the following steps: utilizing a bearing container to bear metal melt to be subjected to semi-solid treatment; placing the lower part of a slurry preparing rod into the metal melt, and enabling the metal melt around the slurry preparing rod to form a great deal of a primary solid phase, thereby forming the semi-solid slurry with the primary solid phase dispersed in liquid metal melt, wherein the temperature of the slurry preparing rod is lower than the temperature of the metal melt; and continuously providing a refrigerant liquid into the slurry preparing rod for enabling the temperature of the slurry preparing rod to be always lower than the temperature of the metal melt. The preparation method disclosed by the invention is short in preparation process, is high in efficiency and is easy to control, the solid phase in the semi-solid slurry is uniformly distributed, and the production process is safe. Besides, the invention further provides equipment suitable for the method.
Description
Technical field
The present invention relates to Semi-Solid Metals Forming field, be specifically related to a kind of preparation method of semisolid state slurry thereof and Preparation equipment thereof.
Background technology
The semi-solid casting technology for making that early 1970s grows up, makes conventional cast mode there occurs profound change.Chinese scholars proposes many semi-solid metal slurry process of preparings, as mechanical mixing method, electromagnetic stirring method, control solidi fication method, strain activation technology, powder metallurgy process and additive method etc.Semi-solid-state metal pulping process a lot of at present exists: melt vulnerable to pollution, and energy ezpenditure is large; The problems such as technological parameter is wayward, and casting quality is unstable.
The rheoforging technology of the Gas Stirring that the Wannasin of Songkla university of Thailand etc. propose, melt Quench forming core is made by the graphite rod logical argon gas in alloy melt being drilled with said minuscule hole, dendrite near the strong agitation that produced by air-flow is broken graphite rod, and the local melt overheat that convection current produces makes dendrite portions remelting and becomes rounding.The people such as Central China University of Science and Technology's wrinkle jade-like stone and Zhang Lei rotate air blowing by driven by motor graphite rod and have obtained AZ91D magnesium alloy semisolid slurry.The people such as Wang Wenjun add mechanical oscillation on the basis rotating graphite rod, propose the technique that airflow stirring mechanical oscillation composite algorithm produces semi solid slurry.
Above-mentioned gas bubble method prepares slurry, and to have process simple, the advantage that cost is low, but gas bubble method exists and easily causes oxide inclusion and melt contamination and the shortcoming that may block pore.
Summary of the invention
Object of the present invention is exactly to solve the problem, and provide a kind of preparation method of semi solid slurry, its preparation flow is short, efficiency is high, be easy to control, the nucleus in semi solid slurry is evenly distributed, production process safety; In addition, the present invention also provides a kind of equipment being applicable to above-mentioned preparation method.
For realizing above-mentioned purpose of the present invention, one aspect of the present invention provides a kind of preparation method of semi solid slurry, and it comprises the steps:
Carrying container is utilized to carry the metal bath that will carry out Semi-solid Material Processing;
By being inserted in described metal bath the bottom of its temperature lower than the slurrying rod of described metal bath temperature, the metal bath around slurrying rod is made to form a large amount of nascent solid phases, to form in melted metal the semi solid slurry being dispersed with nascent solid phase;
Wherein, by continuing to provide refrigerant liquid to described slurrying rod, make described slurrying rod temperature all the time lower than described metal bath temperature.
Wherein, when continuing to provide refrigerant liquid to described slurrying rod, by swinging described slurrying rod, the nascent solid phase around described slurrying rod is dispersed in liquid metal bath, thus forms semi solid slurry.
Wherein, described slurrying rod comprises: slurrying rod body; Inlet and the liquid outlet being arranged at slurrying rod body upper part side by side up and down; Be arranged at the intrinsic passage for being communicated with inlet and liquid outlet of slurrying rod; Wherein, described refrigerant liquid flows through described passage, for absorbing the heat of the metal bath release of described liquid state, makes described slurrying rod temperature all the time lower than described metal bath temperature.
Preferably, described passage comprises: be arranged at the first cavity in described slurrying rod chamber body and the second cavity, along slurrying rod body shaft to extending side by side; The 3rd cavity that its two ends and the first cavity and the bottom of the second cavity are communicated with respectively; Wherein, the top of described first cavity is connected with described inlet, and the top of described second cavity is connected with described liquid outlet; Wherein, described 3rd cavity is arranged at the bottom of described slurrying rod body.
Wherein, continue to provide refrigerant liquid to comprise the steps: to described slurrying rod
By liquid feed device, the refrigerant liquid its temperature being exceeded setting low-temperature values continues to pump into the passage of described slurrying rod via described inlet;
Flow through the refrigerant liquid of slurrying rod passage, absorb the heat formation heated liquid that the metal bath around described slurrying rod gives out;
Heated liquid flows to refrigeration source place via described liquid outlet, carries out cooling process, to form the refrigerant liquid being pumped into described passage by liquid feed device by refrigeration source to heated liquid.
Wherein, described refrigerant liquid is the metallic solution or metal compound solution that fusing point is low, boiling point is high.
Preferably, described refrigerant liquid is any one in solution of tin or Gallium solution or solution of indium or Sn Alloy Plating Bath or gallium alloy solution or indium alloy solution.
Wherein, after cooling process being carried out to heated liquid by refrigeration source, also comprise the step that the temperature of the cooling liquid formed after cooling is detected, to determine whether cooling liquid is the refrigerant liquid being pumped into described passage by liquid feed device.
Preferably, carry out detection to the temperature value of described cooling liquid to comprise the steps:
Detected by the temperature of detector unit to described cooling liquid, obtain detected temperatures value;
The preset temperature range of detected temperatures value with the refrigerant liquid preset is compared;
According to comparative result, judge whether to regulate the temperature of described cooling liquid.
In addition, the present invention also provides a kind of equipment for preparation method of semisolid state slurry thereof as above, and it comprises: for carrying the carrying container that will carry out the metal bath of Semi-solid Material Processing; Its temperature is lower than the slurrying rod of described metal bath temperature, and its lower end is used for inserting in described metal bath; For flowing continuously through the refrigerant liquid of slurrying rod; Wherein, by continuing to provide refrigerant liquid to described slurrying rod, make described slurrying rod temperature all the time lower than described metal bath temperature, so that the metal bath around described slurrying rod forms a large amount of nascent solid phases, thus form the semi solid slurry being dispersed with nascent solid phase in melted metal.
Compared with prior art, the preparation method of semi solid slurry of the present invention and Preparation equipment tool thereof have the following advantages:
1) the present invention is cooled slurrying rod fast by refrigerant liquid, thus make the metal bath around slurrying rod form a large amount of nearly spherical nascent solid phase, and by swinging slurrying rod, the nascent solid phase in carrying container is evenly distributed in liquid metal bath, not only mode of operation is easy, and the nucleus of nascent solid phase can be made to be evenly distributed in semi solid slurry, improve mixing efficiency and the quality of semi solid slurry;
2) the present invention adopts refrigerant liquid directly to cool slurrying rod, efficiency is high, controls simple and easy, and the refrigerant liquid that the present invention adopts is low melting point, high boiling metal or metallic compound, even if occur that unexpected leakage also can not be blasted with metal bath to react, produce safer.
Below in conjunction with accompanying drawing, the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of making semisolid slurry equipment of the present invention;
Fig. 2 is the structural representation of register of the present invention;
Fig. 3 is the preparation flow figure of semi solid slurry of the present invention;
Fig. 4 is the schematic diagram of employing aluminium alloy of the present invention as the metallographic microstructure of the semi solid slurry formed during metal bath.
Detailed description of the invention
The invention provides a kind of preparation method of semi solid slurry, this preparation method comprises the steps:
Carrying container is utilized to carry the metal bath that will carry out Semi-solid Material Processing;
By inserting in metal bath lower than the bottom of the slurrying rod of metal bath temperature all the time by its temperature, the metal bath around slurrying rod is made to form a large amount of nascent solid phases, to form in melted metal the semi solid slurry being dispersed with nascent solid phase;
Wherein, by continuing to provide refrigerant liquid to described slurrying rod, make described slurrying rod temperature all the time lower than described metal bath temperature.
Concrete, as shown in Figure 3, preparation method of the present invention comprises the steps.
S1, utilize carrying container to carry will to carry out the metal bath of Semi-solid Material Processing
The metal bath be in a liquid state is prepared in carrying container, or, the metal bath be in a liquid state prepared is joined in carrying container.
Wherein, carrying container can be the tubular construction of one end opening, e.g., can adopt the scoop 1 of its upper end open as shown in Figure 1, and metal bath can be magnesium alloy solution or aluminium alloy solution etc.In the process preparing semi solid slurry, according to the characteristic of metal bath, inert gas protection can also be set above carrying container, to prevent metal bath generation oxidation reaction.
S2, by inserting in metal bath lower than the bottom of the slurrying rod of metal bath temperature all the time by its temperature, the metal bath around slurrying rod is made to form a large amount of nascent solid phases
Wherein, the slurrying rod 2 that the present invention adopts has structure as shown in Figure 1, and it comprises: slurrying rod body 21; Inlet 22 and the liquid outlet 23 being arranged at slurrying rod body 21 top side by side up and down; Be arranged at the passage 24 for being communicated with inlet 22 and liquid outlet 23 in slurrying rod body 21; Wherein, passage 24 axially extends along slurrying rod body 21.
Add man-hour, circular bar can be adopted to make slurrying rod body 21, and offer two openings on the top of slurrying barred body body 21 sidewall, one is inlet 22, and one for being positioned at the liquid outlet 23 below inlet 22.The first cavity 24, second cavity 26 and the 3rd cavity 25 is processed in the inner chamber of slurrying rod body 21, wherein, first cavity 24 and the second cavity 26 extend side by side along the axis of slurrying rod body, the top of the first cavity 24 is connected with inlet 22, the top of the second cavity 26 is connected with liquid outlet 23, and the two ends of the 3rd cavity 25 are communicated with respectively with the bottom of the first cavity 24 with the second cavity 26, and the 3rd cavity 25 is located at the bottom of slurrying rod body.Three cavitys form the passage flowed for refrigerant liquid jointly, and the intrinsic passage of slurrying rod can form closed loop with the liquid feed device in the external world.
Wherein, the temperature of the metal bath of the liquid state of carrying container carrying is much larger than the temperature of refrigerant liquid, by the bottom of slurrying rod being inserted (the 3rd cavity of slurrying rod bottom is positioned at metal bath completely) in the metal bath that is in a liquid state, and provide refrigerant liquid to slurrying rod is continual, the cooling fast of slurrying rod can be made, make slurrying rod temperature all the time lower than metal bath temperature, make in the metal bath of the liquid state around slurrying rod, to form a large amount of torulose nascent solid phases.
Concrete, after metal bath is inserted in the bottom of slurrying rod, continue to provide refrigerant liquid to comprise the steps: to slurrying rod
S21, by liquid feed device, the inlet of the refrigerant liquid of its temperature in preset temperature range via slurrying rod is continued to be pumped in the passage of slurrying rod;
S22, under the effect of liquid feed device, refrigerant liquid flows through the passage in slurrying rod, and the temperature of slurrying rod is reduced; After slurrying rod temperature reduces, the metal bath generation solidification change be in a liquid state around it is made to form nucleus; And the metal bath of liquid state discharges a large amount of heats in the process of solidifying, heat passes to slurrying rod and passes to through slurrying rod the refrigerant liquid flowing through slurrying rod, makes refrigerant liquid absorb thermal temperature rising and defines heated liquid;
S23, in slurrying rod, pump into refrigerant liquid because liquid feed device is continual, therefore, heated liquid can be made to flow to via the liquid outlet of slurrying rod the refrigeration source place be positioned at outside slurrying rod, by refrigeration source, cooling process is carried out to heated liquid, to form the refrigerant liquid that can be in by liquid feed device its temperature pumped in slurrying rod passage in preset temperature range;
S24, its temperature refrigerant liquid be in preset temperature range are pumped in the passage of slurrying rod.
Wherein, as shown in Figure 1, liquid feed device comprises pump 5, the woven hose 4 outlet of pump 5 be connected with the inlet 22 of slurrying rod 2, the liquid back pipe 9 that is connected with the liquid outlet 23 of slurrying rod 2 by the entrance of pump 5, and refrigeration source 7 is arranged on liquid back pipe 9.This refrigeration source 7 can, for being installed on the radiating fin on the intake section of the close pump 5 of liquid back pipe 9, also can be other element that can be pipeline cooling of the prior art.
Passage 24 in slurrying rod and woven hose 4, liquid back pipe 9 and pump 5 are formed and are communicated with and closed loop, by the effect of pump 5, the refrigerant liquid that its temperature can be made to be in preset temperature range is pumped in slurrying rod by woven hose 4 is continual, and the heated liquid that refrigerant liquid is formed after absorbing heat flows to the entrance ((direction of refrigerant liquid flowing is as shown in the direction of arrow in Fig. 1) of pump 5 by liquid back pipe 9, when flowing through refrigeration source place, cooling process is carried out in cooled source, and its temperature meets the entrance diffluence of refrigerant liquid to pump 5 of reference temperature requirement after cooling process, to be continued again to pump by pump 5.
Wherein, undertaken by refrigeration source 7 pairs of heated liquid cooling process formed cooling liquid after, cooling liquid be not pumped into by pump 5 slurrying rod passage in before, also comprise the step that the temperature of cooling liquid is detected, to determine whether cooling liquid is the refrigerant liquid that can be pumped into by liquid feed device in the passage of slurrying rod.
Wherein, carry out detection to the temperature of cooling liquid to comprise the steps:
Detected by the temperature of detector unit to cooling liquid, obtain detected temperatures value;
The preset temperature range of detected temperatures value with the refrigerant liquid preset is compared;
According to comparative result, judge whether to regulate the temperature of cooling liquid.
And according to comparative result, judge whether the temperature of cooling liquid is carried out to adjustment and comprised the steps:
If after the detected temperatures value of the cooling liquid formed after cooling is compared with preset temperature range, detected temperatures value is higher than the setting high temperature values of preset temperature range, then by heat abstractor, radiating treatment is carried out to cooling liquid, be less than setting high temperature values to make the temperature of liquid;
If after the detected temperatures value of cooling liquid being compared with preset temperature range, detected temperatures value lower than the setting low-temperature values of preset temperature range, is then heated cooling liquid by register, is greater than setting low-temperature values to make the temperature of liquid;
If after the detected temperatures value of cooling liquid being compared with preset temperature range, detected temperatures value is in preset temperature range, then liquid of lowering the temperature is satisfactory refrigerant liquid, and refrigerant liquid flows to the entrance of pump and is pumped in slurrying rod by pump.
Wherein, as shown in Figure 1 and Figure 2, heat abstractor 8 of the present invention is arranged near refrigeration source 7, it can be the fan near refrigeration source 7, when the setting high temperature values of the temperature of liquid of lowering the temperature higher than refrigerant liquid, by wind-force, cooling liquid is lowered the temperature as early as possible, so that the temperature of the liquid after cooling is in the preset temperature range of refrigerant liquid; And register 6 of the present invention can be arranged on liquid back pipe 9, it has heating source 61, when the temperature of liquid of lowering the temperature drop to equal even lower than setting low-temperature values time, by in heating source 61 pairs of liquid back pipes 9 liquid heat, so that the temperature of liquid after heating is in the preset temperature range of refrigerant liquid.
Heating source 61 can adopt heating plate, also can adopt other heating arrangement of prior art; Heat abstractor, except fan, also can adopt other structure with thermolysis of the prior art.And detector unit 10 of the present invention can be arranged on liquid back pipe 9 and (is preferably arranged at the porch of the close pump of liquid back pipe), also can be arranged on register 6, this detector unit 10 can adopt temperature sensor of the prior art.
When in the passage by pump the refrigerant liquid that its temperature is in preset temperature range being pumped into slurrying rod, due to the effect of the temperature difference between slurrying rod and the melted metal around it, make the surrounding of the slurrying rod be inserted in metal bath can produce a large amount of nucleus, and flow through slurrying rod along with refrigerant liquid is continual, make constantly to form new nucleus around slurrying rod, meanwhile, old nucleus can constantly be grown up, and the nucleus of these new formation is with the nucleus of growing up the nascent solid phase be present in melted metal.
And due to flow through slurrying rod passage in the temperature of refrigerant liquid be in certain temperature range, make the variable gradient of slurrying rod temperature opposing metallic melt temperature little, therefore, the nascent solid phase produced around slurrying rod mostly is closely spherical (as shown in Figure 4).
Wherein, slurrying rod of the present invention can be made up of graphite, also can be made up of mould steel.And refrigerant liquid of the present invention can be the metallic solution that fusing point is low, boiling point is high, as the one in the metallic solutions such as solution of tin, Gallium solution, solution of indium; Also can be the solution of the metallic compound that fusing point is low, boiling point is high, as the one in Sn Alloy Plating Bath, gallium alloy solution, indium alloy solution etc.And refrigerant liquid preset temperature range in, its setting high temperature values be t
1+ △ t
1, t
1for the melting temperature of refrigerant liquid, △ t
1span be 50 DEG C ~ 100 DEG C; Its setting low-temperature values is t
1+ △ t
2, △ t
2span be 10 DEG C ~ 20 DEG C.
S3, by swinging slurrying rod, the nascent solid phase around slurrying rod to be dispersed in liquid metal bath, thus to form semi solid slurry.
When producing a large amount of nascent solid phases in S31, the metal bath be in a liquid state around slurrying rod, also need to swing slurrying rod, be distributed to equably in the metal bath be in a liquid state to make nascent solid phase.
The present invention makes slurrying rod 2 swing by the pendulous device 3 be connected with the upper end of slurrying rod 2, this pendulous device 3 can adopt motor as power source, by transmission mechanism by the power transmission of motor to slurrying rod 2, slurrying rod 2 is swung back and forth in carrying container, is distributed to equably in the metal bath be in a liquid state to make nascent solid phase.
Preferably, transmission mechanism can adopt Worm and worm-wheel gearing, also can adopt the mechanism that rotary motion can be converted to linear reciprocating motion of the prior art.
S32, while by swing slurrying rod, nascent solid phase is evenly distributed in metal bath time, metal bath is cooled, is cooled to after predetermined temperature until metal bath, remove slurrying rod, namely obtain the semi-solid metal slurry being distributed with solid phase in liquid state.
Wherein, predetermined temperature of the present invention is t
2± △ t, t
2for the liquidus temperature of metal bath, the span of △ t is 10 DEG C ~ 30 DEG C.
In addition, the present invention also provides a kind of Preparation equipment for said method, and as shown in Figure 1, this Preparation equipment comprises: for carrying the carrying container 1 that will carry out the metal bath of Semi-solid Material Processing; Its temperature is lower than the slurrying rod 2 of metal bath temperature, and its lower end is used for inserting in metal bath; For flowing continuously through the refrigerant liquid of slurrying rod 2; Wherein, by continuing to provide refrigerant liquid to slurrying rod 2, make slurrying rod 2 temperature all the time lower than metal bath temperature, so that the metal bath around slurrying rod 2 forms a large amount of nascent solid phases, thus form the semi solid slurry being dispersed with nascent solid phase in melted metal.The pendulous device 3 for making it swing be connected with slurrying rod 2; Wherein, by pendulous device 3, slurrying rod 2 is radially swung, the nascent solid phase around slurrying rod 2 is dispersed in liquid metal bath, thus form semi solid slurry.Concrete, carrying container of the present invention is the tubular construction of its one end open, e.g., can adopt the scoop 1 of its upper end open as shown in Figure 1.And slurrying rod 2 of the present invention can adopt circular bar to be made, it comprises: slurrying rod body 21; Inlet 22 and the liquid outlet 23 being arranged at slurrying rod body 21 top side by side up and down; Be arranged at the passage 24 for being communicated with inlet 22 and liquid outlet 23 in slurrying rod body 21.During making, offer two openings on the top of slurrying barred body body 21 sidewall, one is inlet 22, and one for being positioned at the liquid outlet 23 below inlet 22.The first cavity 24, second cavity 26 and the 3rd cavity 25 is processed in the inner chamber of slurrying rod body 21, wherein, first cavity 24 and the second cavity 26 extend side by side along the axis of slurrying rod body, the top of the first cavity 24 is connected with inlet 22, the top of the second cavity 26 is connected with liquid outlet 23, and the two ends of the 3rd cavity 25 are communicated with respectively with the bottom of the first cavity 24 with the second cavity 26, and the 3rd cavity 25 is located at the bottom of slurrying rod body.Three cavitys form the passage flowed for refrigerant liquid jointly, and the intrinsic passage of slurrying rod can form closed loop with the liquid feed device in the external world.
In addition, equipment of the present invention also comprises the pendulous device 3 for swinging slurrying rod 2, and this pendulous device 3 comprises motor and motor power passed to the transmission mechanism of slurrying rod, and transmission mechanism can adopt the structure of prior art.
Wherein, the present invention is by adopting liquid feed device to the excellent temperature continuing to provide the mode of refrigerant liquid to make slurrying rod of slurrying all the time lower than the temperature of metal bath.This liquid feed device comprises: pump 5, the woven hose 4 outlet of pump 5 be connected with the inlet 22 of slurrying rod 2, the liquid back pipe 9 be connected with the liquid outlet 23 of slurrying rod 2 by the entrance of pump 5, and the passage 24 in slurrying rod and woven hose 4, liquid back pipe 9 and pump 5 are formed and be communicated with and closed loop.In addition, Preparation equipment of the present invention also comprises the refrigeration source 7 be arranged on liquid back pipe 9, and this refrigeration source 7 can, for being installed on the radiating fin on the intake section of the close pump 5 of liquid back pipe 9, also can be other element that can be pipeline cooling of the prior art.
Further, Preparation equipment of the present invention also comprises detector unit that the temperature of cooling liquid for being formed after process of lowering the temperature to refrigeration source 7 detects and for the register heated cooling liquid and the heat abstractor dispelled the heat.
Wherein, heat abstractor 8 of the present invention can be the fan near refrigeration source 7; And register 6 of the present invention is arranged on liquid back pipe 9, have heating source 61, heating source 61 can adopt heating plate, also can adopt other heating arrangement of prior art.And detector unit 10 of the present invention can adopt temperature sensor of the prior art.
In addition, Preparation equipment of the present invention also has the control device be connected respectively with above-mentioned pendulous device 3, liquid feed device, temperature sensor, register and heat abstractor, control above-mentioned each device by control device and perform corresponding operating, the structure of control device and control procedure can use structure and the method for prior art, are not described in here.
Below, in conjunction with specific embodiments, the preparation process of semi solid slurry of the present invention is described.
Embodiment 1
(1) with resistance furnace melting 1 kilogram of A356 aluminium ingot, be incubated 680 DEG C, then the aluminium liquid of melting imported in scoop 1;
(2) slurrying rod 2 one end of being made by graphite are placed in above-mentioned scoop 1, start the refrigerant liquid that pump 5 passes into sn-bi alloy in slurrying rod 2, the fusing point of this sn-bi alloy is 138 DEG C, regulated by register 6 and enter the temperature of the refrigerant liquid of pump, guarantee that the temperature of the refrigerant liquid pumped by pump is higher than 148 DEG C.
Refrigerant liquid flows in the passage of slurrying rod by feed tube 4, and flow to refrigeration source 7 place through liquid back pipe 9, due to the refrigerant liquid entered from inlet flow through passage after carry away the heat that aluminium liquid passes to slurrying rod, therefore, the liquid flowed out from liquid outlet is heated liquid, the heat carried is delivered to refrigeration source 7 place and carries out cooling process through refrigeration source by heated liquid flow system low-temperature receiver place, when temperature sensor detects the temperature of the cooling liquid formed after cooling process more than 188 DEG C, distributed by the heat of fan 8 by refrigeration source 7, when the temperature of liquid is reduced between 148 DEG C-188 DEG C, by pump, liquor pump is excellent to slurrying again.
In pulping process, the aluminium liquid around slurrying rod 2 can form a large amount of nascent solid phases, meanwhile, drives slurrying rod 2 to swing by motor 3, so that nascent solid phase is scattered in liquid aluminium material by slurrying rod uniformly that swing.
(3) be cooled to after 625 DEG C (liquidus curve of A356 is 615 DEG C) until the aluminium liquid being distributed with nascent solid phase in its in above-mentioned scoop 1, remove described slurrying rod 2, namely obtain semi-solid metal slurry.
Embodiment 2
(1) with resistance furnace melting 1 kilogram of AZ91D magnesium ingot, be incubated 670 DEG C, then the magnesium alloy solution of melting imported in scoop 1, above scoop 1, adopt inert gas protection;
(2) slurrying rod 2 bottoms of being made by mould steel are placed in above-mentioned scoop 1, start the refrigerant liquid (fusing point of this bismuth Pb-Sn alloy is 103 DEG C) that pump 5 passes into bismuth Pb-Sn alloy in slurrying rod 2, guarantee that refrigerant liquid temperature is higher than 118 DEG C by register 6, refrigerant liquid flows to refrigeration source 7 place by drain pipe 9, and the heat of slurrying rod is delivered to refrigeration source 7.
When the temperature of the liquid at refrigeration source place is more than 168 DEG C, distributed by the heat of fan 8 by refrigeration source 7 place, when the temperature of the liquid after dispelling the heat is reduced between 118 DEG C-168 DEG C, then by pump, liquor pump is excellent to slurrying.
In pulping process, the magnesium liquid around slurrying rod 2 can form a large amount of nascent solid phases, meanwhile, drives slurrying rod 2 to swing by motor 3, so that nascent solid phase is scattered in liquid magnesium liquid by slurrying rod uniformly that swing.
(3) be cooled to after 605 DEG C (AZ91D liquidus temperature is 595 DEG C) until the magnesium liquid being distributed with nascent solid phase in its in above-mentioned scoop 1, remove described slurrying rod 2, obtain semi-solid metal slurry.
To sum up, preparation method of the present invention, by refrigerant liquid, slurrying rod is cooled fast, thus make in the metal bath around slurrying rod, to obtain a large amount of nearly spherical nascent solid phase, and by swinging slurrying rod, the nascent solid phase in carrying container is evenly distributed in metal bath, visible, the present invention not only mode of operation is easy, and nascent solid phase can be made to be evenly distributed in semi solid slurry, improves mixing efficiency and the quality of semi solid slurry.
In addition, the present invention adopts refrigerant liquid directly to cool slurrying rod, and efficiency is high, controls simple and easy; Meanwhile, the refrigerant liquid that the present invention adopts is low melting point, high boiling metal or metallic compound, even if there is unexpected leakage, refrigerant liquid also can not produce explosive reaction with metal bath (as aluminium liquid), produces safer.
Although be explained in detail the present invention above; but the present invention is not limited thereto; those skilled in the art can principle according to the present invention modify, and therefore, all various amendments carried out according to principle of the present invention all should be understood to fall into protection scope of the present invention.
Claims (10)
1. a preparation method for semi solid slurry, comprises the steps:
Carrying container is utilized to carry the metal bath that will carry out Semi-solid Material Processing;
By being inserted in described metal bath the bottom of its temperature lower than the slurrying rod of described metal bath temperature, the metal bath around slurrying rod is made to form a large amount of nascent solid phases, to form in melted metal the semi solid slurry being dispersed with nascent solid phase;
It is characterized in that, by continuing to provide refrigerant liquid to described slurrying rod, making described slurrying rod temperature all the time lower than described metal bath temperature.
2. method according to claim 1, it is characterized in that, when continuing to provide refrigerant liquid to described slurrying rod, by swinging described slurrying rod, nascent solid phase around described slurrying rod is dispersed in liquid metal bath, thus forms semi solid slurry.
3. method according to claim 1 and 2, is characterized in that, described slurrying rod comprises:
Slurrying rod body;
Inlet and the liquid outlet being arranged at slurrying rod body upper part side by side up and down;
Be arranged at the intrinsic passage for being communicated with inlet and liquid outlet of slurrying rod;
Wherein, described refrigerant liquid flows through described passage, for absorbing the heat of the metal bath release of described liquid state, makes described slurrying rod temperature all the time lower than described metal bath temperature.
4. method according to claim 3, is characterized in that, described passage comprises:
Be arranged at the first cavity in described slurrying rod chamber body and the second cavity, along slurrying rod body shaft to extending side by side;
The 3rd cavity that its two ends and the first cavity and the bottom of the second cavity are communicated with respectively;
Wherein, the top of described first cavity is connected with described inlet, and the top of described second cavity is connected with described liquid outlet;
Wherein, described 3rd cavity is arranged at the bottom of described slurrying rod body.
5. method according to claim 3, is characterized in that, continues to provide refrigerant liquid to comprise the steps: to described slurrying rod
By liquid feed device, the refrigerant liquid its temperature being exceeded setting low-temperature values continues to pump into the passage of described slurrying rod via described inlet;
Flow through the refrigerant liquid of slurrying rod passage, absorb the heat formation heated liquid that the metal bath around described slurrying rod gives out;
Heated liquid flows to refrigeration source place via described liquid outlet, carries out cooling process, to form the refrigerant liquid being pumped into described passage by liquid feed device by refrigeration source to heated liquid.
6. method according to claim 1, is characterized in that, described refrigerant liquid is the metallic solution or metal compound solution that fusing point is low, boiling point is high.
7. method according to claim 6, is characterized in that, described refrigerant liquid is any one in solution of tin or Gallium solution or solution of indium or Sn Alloy Plating Bath or gallium alloy solution or indium alloy solution.
8. method according to claim 5, it is characterized in that, after cooling process being carried out to heated liquid by refrigeration source, also comprise the step that the temperature of the cooling liquid formed after cooling is detected, to determine whether cooling liquid is the refrigerant liquid being pumped into described passage by liquid feed device.
9. method according to claim 8, is characterized in that, carries out detection comprise the steps: the temperature value of described cooling liquid
Detected by the temperature of detector unit to described cooling liquid, obtain detected temperatures value;
The preset temperature range of detected temperatures value with the refrigerant liquid preset is compared;
According to comparative result, judge whether to regulate the temperature of described cooling liquid.
10. a Preparation equipment for semi solid slurry, is characterized in that, comprising:
For carrying the carrying container that will carry out the metal bath of Semi-solid Material Processing;
Its temperature is lower than the slurrying rod of described metal bath temperature, and its lower end is used for inserting in described metal bath;
For flowing continuously through the refrigerant liquid of slurrying rod;
Wherein, by continuing to provide refrigerant liquid to described slurrying rod, make described slurrying rod temperature all the time lower than described metal bath temperature, so that the metal bath around described slurrying rod forms a large amount of nascent solid phases, thus form the semi solid slurry being dispersed with nascent solid phase in melted metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610006207.9A CN105537540A (en) | 2016-01-04 | 2016-01-04 | Preparation method and preparation equipment for semi-solid slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610006207.9A CN105537540A (en) | 2016-01-04 | 2016-01-04 | Preparation method and preparation equipment for semi-solid slurry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105537540A true CN105537540A (en) | 2016-05-04 |
Family
ID=55817362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610006207.9A Withdrawn CN105537540A (en) | 2016-01-04 | 2016-01-04 | Preparation method and preparation equipment for semi-solid slurry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105537540A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106862521A (en) * | 2017-04-21 | 2017-06-20 | 苏州金澄精密铸造有限公司 | A kind of semi solid slurry slurrying head |
| CN106955980A (en) * | 2017-04-20 | 2017-07-18 | 昆山伟拓压铸机械有限公司 | Non-ferrous metal semisolid soup stock shaped device and preparation method |
| CN109453715A (en) * | 2018-11-27 | 2019-03-12 | 东莞宜安科技股份有限公司 | A kind of 3D printing equipment of amorphous alloy |
| CN111623639A (en) * | 2020-06-22 | 2020-09-04 | 中国核动力研究设计院 | High-temperature liquid melt rapid cooling device and cooling method thereof |
| CN112958749A (en) * | 2021-02-02 | 2021-06-15 | 深圳市海固科技有限公司 | Internal and external heat balance type pulping device and pulping process using same |
| CN113275520A (en) * | 2020-02-19 | 2021-08-20 | 丰田自动车株式会社 | Method for producing semi-solidified molten metal |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01170547A (en) * | 1987-12-25 | 1989-07-05 | Ishikawajima Harima Heavy Ind Co Ltd | Manufacturing device for semi-solidified metal slurry |
| CN101618438A (en) * | 2008-07-04 | 2010-01-06 | 北京有色金属研究总院 | Device for preparing semi-solid alloy rheological slurry or blank |
| CN101745629A (en) * | 2008-12-16 | 2010-06-23 | 北京有色金属研究总院 | Method for preparing semi-solid alloy rheological slurry or billet through annular-gap type electromagnetic stirring |
| CN203508950U (en) * | 2013-08-06 | 2014-04-02 | 昆明理工大学 | Device for inducing molten metal to carry out rapid and mass nucleation through rotary rod |
| CN105149549A (en) * | 2015-09-21 | 2015-12-16 | 珠海市润星泰电器有限公司 | Device and method for preparing semi-solid sizing agent |
| CN204898039U (en) * | 2015-08-12 | 2015-12-23 | 北京科技大学 | Device of half solid -state thick liquids of air cooling multitube stirring preparation light -alloy |
-
2016
- 2016-01-04 CN CN201610006207.9A patent/CN105537540A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01170547A (en) * | 1987-12-25 | 1989-07-05 | Ishikawajima Harima Heavy Ind Co Ltd | Manufacturing device for semi-solidified metal slurry |
| CN101618438A (en) * | 2008-07-04 | 2010-01-06 | 北京有色金属研究总院 | Device for preparing semi-solid alloy rheological slurry or blank |
| CN101745629A (en) * | 2008-12-16 | 2010-06-23 | 北京有色金属研究总院 | Method for preparing semi-solid alloy rheological slurry or billet through annular-gap type electromagnetic stirring |
| CN203508950U (en) * | 2013-08-06 | 2014-04-02 | 昆明理工大学 | Device for inducing molten metal to carry out rapid and mass nucleation through rotary rod |
| CN204898039U (en) * | 2015-08-12 | 2015-12-23 | 北京科技大学 | Device of half solid -state thick liquids of air cooling multitube stirring preparation light -alloy |
| CN105149549A (en) * | 2015-09-21 | 2015-12-16 | 珠海市润星泰电器有限公司 | Device and method for preparing semi-solid sizing agent |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106955980A (en) * | 2017-04-20 | 2017-07-18 | 昆山伟拓压铸机械有限公司 | Non-ferrous metal semisolid soup stock shaped device and preparation method |
| CN106862521A (en) * | 2017-04-21 | 2017-06-20 | 苏州金澄精密铸造有限公司 | A kind of semi solid slurry slurrying head |
| CN106862521B (en) * | 2017-04-21 | 2019-12-13 | 苏州金澄精密铸造有限公司 | Semi-solid slurry pulping head |
| CN109453715A (en) * | 2018-11-27 | 2019-03-12 | 东莞宜安科技股份有限公司 | A kind of 3D printing equipment of amorphous alloy |
| CN113275520A (en) * | 2020-02-19 | 2021-08-20 | 丰田自动车株式会社 | Method for producing semi-solidified molten metal |
| CN113275520B (en) * | 2020-02-19 | 2022-11-18 | 丰田自动车株式会社 | Method for producing semi-solidified molten metal |
| CN111623639A (en) * | 2020-06-22 | 2020-09-04 | 中国核动力研究设计院 | High-temperature liquid melt rapid cooling device and cooling method thereof |
| CN112958749A (en) * | 2021-02-02 | 2021-06-15 | 深圳市海固科技有限公司 | Internal and external heat balance type pulping device and pulping process using same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105537540A (en) | Preparation method and preparation equipment for semi-solid slurry | |
| CN100566890C (en) | A kind of preparation of semi-solid alloy slurry and the equipment of rheoforging | |
| US7169350B2 (en) | Method and apparatus for making a thixotropic metal slurry | |
| CN100497716C (en) | Method for continuously casting titanium alloy near single-crystal ingot by using electromagnetic cold crucible | |
| CN102861902B (en) | Continuous preparation device for composite stirred semi-solid slurry | |
| CN203508950U (en) | Device for inducing molten metal to carry out rapid and mass nucleation through rotary rod | |
| CN104232953B (en) | A kind of light metal alloy preparation method of semisolid state slurry thereof | |
| CN102658362B (en) | Water cooling copper crucible directional freezing method for superhigh-temperature Nb-Si alloy | |
| US4573516A (en) | Method of and apparatus for casting directionally solidified articles | |
| CN1156350C (en) | Process and equipment for preparing semi-solid-state metal slurry in spherical primary crystal or raw material for conticasting | |
| US10682693B2 (en) | Method and apparatus for continuous semisolid die casting | |
| CN108746540A (en) | A kind of electromagnetic system prepares semi-solid forming method | |
| CN100554455C (en) | The preparation of semi-solid alloy slurry and forming method | |
| CN207619552U (en) | A kind of directional solidification furnace center heating and central cooling device | |
| CN101003863A (en) | Method for preparing and rheologic molding semisolid alloy pulp | |
| CN107385513A (en) | A kind of directional solidification furnace is heated with center and central cooling device | |
| CN204892888U (en) | Device of preparation major diameter semi -solid alloy blank | |
| CN100574939C (en) | A kind of preparation of semi-solid alloy slurry and shaped device | |
| CN101130207A (en) | Equipment for preparing semi-solid metal slurry and rheologic molding | |
| JPH1024356A (en) | Casting device, casting method and turbine blade | |
| Zhou et al. | Forced convection rheomoulding process for semisolid slurry preparation and microstructure evolution of 7075 aluminum alloy | |
| CN1597189A (en) | High gradient biregion heating directional solidification device | |
| CN1208152C (en) | High-smelting point thixotropic metal bland and composite material intermittent preparing process and apparatus | |
| CN102888649B (en) | Method for preparing Si-TaSi2 eutectic in-situ composite material | |
| CN108188369A (en) | A kind of semi-solid rheological molding method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160504 |
|
| WW01 | Invention patent application withdrawn after publication |