CN105583385B - A kind of device for continuously fast preparing of aluminum alloy wheel of vehicle semi solid slurry - Google Patents
A kind of device for continuously fast preparing of aluminum alloy wheel of vehicle semi solid slurry Download PDFInfo
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Abstract
A kind of device for continuously fast preparing of aluminum alloy wheel of vehicle semi solid slurry, the device refine purification furnace, the quick mixing plant of slurry, slurry transfer crucible, intelligent power-assisted arm by continuous melting and formed；Material continuous refining purification furnace, the quick mixing plant of slurry and die casting machine（Or die forging machine）The circumference centered on intelligent power-assisted arm is distributed in enclose, slurry transfer crucible is arranged on intelligent power-assisted arm, the operation program of intelligent power-assisted arm is inputted into computer, slurry transfer crucible first bypasses liquid level oxide film in material extracting chamber and takes a certain amount of aluminium liquid, it is then transferred to below the graphite-pipe of slurry quick agitator, by in the slurry of graphite-pipe insertion slurry transfer crucible middle section, the magnetic stirrer for opening the magnetic stirrer in graphite-pipe and slurry transfer crucible periphery carries out electromagnetic agitation, will stir qualified slurry fast transfer to die casting machine（Or die forging machine）Produced.The technical scheme can realize that semi solid slurry is continuous, quickly prepares and shifts, and stock quality is stable, to realizing that the production of aluminum alloy wheel of vehicle semisolid is significant.
Description
Technical field
The present invention relates to semi-solid forming technology field, specifically, is related to a kind of aluminum alloy wheel of vehicle semi solid slurry
The device for continuously fast preparing of material.
Background technology
The annual requirement of 2010 whole world automotive wheels is up to 600,000,000, and wherein aluminum vehicle wheel accounts for 65%.Aluminum vehicle wheel manufactures most
Important link is forming mode, at present main forming mode have low pressure casting, gravitational casting, extrusion casint, counter-pressure casting,
Forging etc., China more than 95% is gravitational casting and low pressure casting.Early 1970s Massachusetts Institute Technology
The new method of a kind of metal forming that M.C.Flemings is taught and doctor D.B.Spencer proposes first, it be by metal or
Alloy is processed in solidus and liquidus temperature section and prepares and realize the new technology of near-net forming, and this method is referred to as half
Solid molding.Because the technology employs n on-dendritic semi solid slurry, traditional dendritic solidification pattern is broken, has had many only
The advantages of special：Forming temperature is low, reduces mould thermal shock and thermal fatigue strength, extends die life；Forming temperature is low to be made
Process of setting Material shrinkage reduces, and casting forms shrinkage cavity, loose tendency substantially reduces；Fine microstructures are uniform, mechanical property
Greatly improve, the strength of materials is high, can effective lightweight, quality can match in excellence or beauty forging method, but cost is less than forging method；Casting is greatly decreased
Gas content in part；Casting cycle is short, and production efficiency is high；The complexity of plastic wheel hub front spoke moulding is almost cast
Method.Semi-solid-state shaping throughput rate is fast, is adapted to produce in enormous quantities.Foreign countries come into the semi-solid-state metal master of commercial Application at present
If Al alloys andMg alloys, the most successful application of these alloys focuses primarily upon automotive field, as the braking of semisolid die forging aluminium alloy is total
The parts such as the pump housing, hanger, cylinder head, wheel hub, compressor piston.In many developed country's Semi-solid Metalformings
Large-scale production is entered, the technology is also described as one of Near net Shaping Technology of 21 century most development prospect.
Semi-solid-state shaping process is broadly divided into rheological molding and thixotropic forming.Rheological molding is that semi solid slurry is straight
Tap into row die casting or die forging；Thixotropic forming is that slurry is initially formed into blank and then needs to be determined according to target part by blank
Then amount cutting will carry out die casting or die forging after the blank progress reheating of cutting of fixed quantity.Semisolid aluminum wheel of vehicle at present
Develop and in China still belong to blank, my company was researching and developing from the research and development for proceeding by semisolid aluminum alloy wheel of vehicle in 2009
During my company be found that while that the temperature of semi-solid-state shaping is relatively low, coagulation defect of material compares than the low pressure casting of liquid
It is small, but for rheological molding, due to being to be prepared into the process that shaping is integration, the quick system of high quality slurry from slurry
Standby with rapid transfer is crucial, and in process of production because slurry solid-liquid ratio is improper, solid particle size is big in slurry, in slurry
Solid particulate distributions are uneven, temperature control, and the factor such as slurry transfer time control can all influence the inherent product of semisolid casting
Matter, therefore how to ensure the quick preparation of semi solid slurry, solid particle size size in control slurry solid-liquid ratio, slurry,
Distribution of particles, temperature control and transfer time are the keys for ensureing semisolid casting quality.
The content of the invention
The purpose of the present invention be overcome existing aluminum alloy wheel of vehicle semi-solid processing process because can not quickly prepare with
Shift and cause slurry solid-liquid ratio is improper, solid particle size is big in slurry, in slurry solid particulate distributions it is uneven etc. because
Element causes the deficiencies of loose casting, shrinkage cavity, cold shut, deficient casting, cold shut, there is provided a kind of company of aluminum alloy wheel of vehicle semi solid slurry
Continuous quick preparation device.
Realizing the technical scheme of above method is：A kind of continuous quick prepare of aluminum alloy wheel of vehicle semi solid slurry fills
Put, the device refines purification furnace, the quick mixing plant of slurry, slurry by continuous melting and shifts crucible and intelligent power-assisted arm group
Into material continuous melting refines purification furnace and is made up of melting chamber, moist closet, refining clean room, refiner, material extracting chamber；
The quick mixing plant of slurry by switch board, wire, air-pressure duct, paint guide, coating holding vessel, support frame, on move down
Dynamic control panel, drive motor one, drive motor two, drive motor three, paint nozzle, scum board, graphite-pipe, magnetic stirrer
First, magnetic stirrer two forms；Material continuous refining purification furnace, the quick mixing plant of slurry and die casting machine or die forging machine are distributed in
Circumference centered on intelligent power-assisted arm encloses, and the preparation, quick stirring, fast transfer of slurry are easy in the design.Producing
Raw material A356.2 is added into melting chamber by charging device in journey, aluminium liquid flows into moist closet, warm aluminium liquid after melt material
Refining clean room is flowed into, refining purifies qualified aluminium liquid and continuously flows into material extracting chamber；Melting chamber, moist closet, refining clean room are with taking
Material room is communicated by window and flows into subsequent region successively.Added in moist closet every 3.0~4.0 hours according to slurry usage amount
Enter to be incubated 10~15 minutes and carry out after 2.0~3.0kg refining slagging agent stirrings and take off Slag treatment, the aluminium liquid temperature control system in moist closet exists
730~755 DEG C.Refiner is assemblied in the side wall of refining clean room, and warm room flows into the aluminium liquid of refining clean room
Material extracting chamber is flowed into again by the continuous purification processing of refiner.Melting chamber, moist closet, refining clean room and material extracting chamber are equal
Heating and temperature controlling device is set to control each regional temperature to meet technological requirement.Nitrogen rotary blowing side is used in refining clean room
Formula carries out continous way degasification, slagging-off, and temperature of aluminum liquid control is at 710~730 DEG C, and spinner velocity is at 650~800 revs/min, nitrogen
0.5~1.5 meter of flow3/ hour, the surface of aluminium liquid add 1.0~1.5kg covertures and skimmed once every 2 hours.According to slurry
The usage amount of material takes the bar-shaped aluminium Ti, B grain graining agent of compartment addition to go bad with aluminium strontium and rare earth in aluminum anodizing clean room
Agent, for feed postition using the molten method of press-in leaching, it is AlTi to use alloy model specification5B1With AlSr10RE1, addition is to make aluminium liquid
The control of titaniferous amount is 0.10%~0.16%, and strontium content is 0.008%~0.02%.Purification furnace is refined by continuous melting to handle
The aluminium liquid cleanliness factor crossed is high, and gassiness, dregginess are low, density is in 2.60g/cm3More than, chemical composition is uniform, and a dendrite is tiny and equal
Even distribution, Eutectic Silicon in Al-Si Cast Alloys are evenly distributed on the crystal boundary of a dendrite in fine particle shape, and modifying-refining is persistently not easy to fail；Due to melt
Contain a certain amount of AlTi5B1With AlSr10RE1, intermediate alloy, the high-melting-point crystallization of substantial amounts of Dispersed precipitate is formed in melt
Core, above method lay the foundation for the preparation of high-quality semi solid slurry.Aluminium liquid after refining purification flows into its temperature of material extracting chamber
Degree control is 30~40 DEG C on the material liquid phase line.The electrical control cubicles of slurry quick agitator are led by wire and compressed air
Pipe, drive motor one, drive motor two, drive motor three, paint guide are connected and control its work；Drive motor one is with applying
Material shower nozzle fits together, and drive motor two fits together with scum board, and drive motor three can control graphite-pipe by belt
Rotation；Paint nozzle is arranged on scum board and moved up and down on control panel, can be upper and lower by drive motor one and drive motor two
It is mobile；Control panel is moved up and down to be assemblied on support frame with graphite-pipe；Paint guide inserts the bottom of coating holding vessel, and coating is led
Pipe is connected with paint nozzle, and air-pressure duct is connected by threeway with paint guide.Paint nozzle, which is assemblied in, to be moved down
The left side of dynamic control panel, scum board are assemblied in the right side for moving up and down control panel.Graphite-pipe is in upper end open, lower end sealing
The stylostome of digging is entreated, magnetic stirrer one is installed inside graphite-pipe, magnetic stirrer one is fixed on the top of support frame, hangs
It is empty in the inside of graphite-pipe, electromagnetic agitation is carried out to the centre of slurry in whipping process；Installed outside slurry transfer crucible
Magnetic stirrer two, the periphery application electromagnetic field that crucible is shifted to slurry are stirred, magnetic stirrer one and magnetic stirrer
Two frequency is at 10~20 hertz, and power of agitator is at 12~20 kilowatts；The process can ensure that slurry in slurry transfer crucible
Homogeneous nucleation.Graphite-pipe is sprayed before stirring to slow down whipping process corrosion every time, scum board is to stone after stirring every time
The aluminium film that black pipe is adhered to is cleared up, and avoiding next whipping process aluminum oxide film and field trash from entering slurry influences slurry
Cleanliness factor.Slurry transfer crucible is arranged on intelligent power-assisted arm, and the operation program of intelligent power-assisted arm is inputted into computer, slurry
Material transfer crucible first bypasses liquid level oxide film in material extracting chamber, then does wheel-type size by computer program control foundation and take one
Quantitative aluminium liquid, then slurry transfer crucible is transferred to below the graphite-pipe of slurry quick agitator, graphite-pipe is inserted
In the slurry of slurry transfer crucible middle section, graphite-pipe starts drive motor three and carried out away from 25~50mm of graphite crucible bottom
Mechanical agitation；Magnetic stirrer is opened simultaneously, and mixing time was controlled at 15~25 seconds, and the slurry temperature after stirring is in the material liquid
20~30 DEG C in phase line, the ratio of slurry solids particle phase will stir qualified slurry fast transfer die casting machine 40~50%
Or die forging machine is produced.The technical scheme can realize that semi solid slurry is continuous, quickly prepare, transfer, and stock quality is stable,
To realizing that the production of aluminum alloy wheel of vehicle semisolid is significant.
Brief description of the drawings
Fig. 1, it is technical solution of the present invention structural representation.
Fig. 2, the structural representation for continuous melting of the present invention refining purification furnace.
Fig. 3, the structural representation for slurry stirring device of the present invention.
Specific embodiment
As shown in Figure 1, Figure 2 with shown in Fig. 3, a kind of device for continuously fast preparing of aluminum alloy wheel of vehicle semi solid slurry, wrapping
Material continuous melting refining purification furnace, the quick mixing plant of slurry, slurry transfer crucible, intelligent power-assisted arm are included, material is continuous
Melting refinement purification furnace is made up of melting chamber 1, moist closet 2, refiner 3, refining clean room 4 with material extracting chamber 5；Slurry is fast
Fast mixing plant by switch board 6, wire 7, air-pressure duct 8, paint guide 9, coating holding vessel 10, support frame 11, up and down
Mobile control panel 12, drive motor one (13), drive motor two (14), drive motor three (15), paint nozzle 16, scum board
17th, magnetic stirrer 1, graphite-pipe (19), magnetic stirrer two (20) composition；Material continuous refining purification furnace, slurry are quick
The circumference that mixing plant is distributed in centered on intelligent power-assisted arm 22 with die casting machine 23 (can certainly be die forging machine) encloses.
Raw material A356.2 is added into melting chamber 1 by charging device in production process, aluminium liquid flows into moist closet 2 after melt material, through protecting
The aluminium liquid of temperature flows into refining clean room 4, and refining purifies qualified aluminium liquid and continuously flows into material extracting chamber 5；Melting chamber 1, moist closet 2, essence
Refining clean room 4 and material extracting chamber 5 are respectively provided with heating and temperature controlling device, control each phase temperature to be allowed to meet technological requirement；Melting chamber
1st, moist closet 2, refining clean room 4 are communicated by window with material extracting chamber 5 and flow into subsequent region successively.In the moist closet 2 every
3.5 hours according to slurry usage amount need to add 2.5kg refining slagging agent stirrings after be incubated 12 minutes and carries out taking off Slag treatment, guarantor
Temperature of aluminum liquid in greenhouse 2 is controlled at 730~755 DEG C.Refiner 3 is assemblied in the side wall of refining clean room 4, by protecting
The aluminium liquid that greenhouse 2 flows into refining clean room 4 flows into material extracting chamber 5 again by the continuous purification processing of refiner 3.Refining
Continous way degasification, slagging-off are carried out using nitrogen rotary blowing mode in clean room 4, temperature of aluminum liquid is controlled at 710~730 DEG C, is turned
Sub- speed is at 700 revs/min, 1.0 meters of nitrogen flow3/ hour, the surface of aluminium liquid add 1.0kg covertures, aluminium liquid surface every
Skim once within 2 hours；Usage amount according to the production process slurry per hour compartment in aluminum anodizing clean room 4 adds bar-shaped
Aluminium Ti, B grain graining agent and aluminium strontium and rare earth alterant, feed postition use the alloy model specification to be using the molten method of press-in leaching
AlTi5B1With AlSr10RE1, addition to make the control of aluminium liquid titaniferous amount 0.10%~0.16%, strontium content 0.008%~
0.02%.Refined, purified by continuous melting, gone bad, the aluminium liquid cleanliness factor height that micronization processes are crossed, gassiness, dregginess are low, composition
Uniformly, a dendrite is tiny and is uniformly distributed, and Eutectic Silicon in Al-Si Cast Alloys is evenly distributed on the crystal boundary of a dendrite in fine particle shape, and modifying-refining is lasting
It is not easy to fail, is laid the foundation for the preparation of high-quality semi solid slurry.Aluminium liquid after refining purification flows into its temperature control of material extracting chamber 5
System is 30~40 DEG C on the material liquid phase line.The switch board 6 of slurry quick agitator passes through wire 7 and air-pressure duct 8
It is connected with drive motor one (13), drive motor two (14), drive motor three (15) and paint guide 9 and controls its work
Make.Drive motor one (13) fits together with paint nozzle 16, and drive motor two (14) fits together with scum board 17；Drive
Dynamic motor three (15) controls graphite-pipe 19 to rotate by belt；Paint nozzle 16 is arranged on scum board 17 and moves up and down control panel
It on 12, can be moved up and down by drive motor one (13) and drive motor two (14), move up and down control panel 12 and graphite-pipe 19
It is assemblied on support frame 11；Paint guide 9 inserts the bottom of coating holding vessel 10, and paint guide 9 is connected with paint nozzle 16,
Air-pressure duct 8 is connected by threeway with paint guide 9.Paint nozzle 16 is assemblied in the left side for moving up and down control panel 12
Side；Scum board 17 is assemblied in the right side for moving up and down control panel 12.Magnetic stirrer one (18), electricity are installed inside graphite-pipe 19
Magnetic stirrer one (18) is fixed on the top of support frame 11, vacantly in the inside of graphite-pipe 19, in whipping process in slurry
Center portion position carries out electromagnetic agitation；Magnetic stirrer two (20) is installed in the periphery of slurry transfer crucible, crucible is shifted to slurry
21 periphery applies electromagnetic field, and electromagnetic agitation, the frequency of magnetic stirrer one (18) and magnetic stirrer two (20) are carried out to slurry
Rate is 15 hertz, 15 kilowatts of electromagnetic agitation power.Every time first to the sprayed coating of graphite-pipe 19 before stirring, using scraping after stirring every time
Slag plate 17 is cleared up adhered to aluminium film and field trash to graphite-pipe 19.Slurry transfer crucible 21 is arranged on intelligent power-assisted hand
On arm 22, the operation program of intelligent power-assisted arm 22 is inputted into computer, slurry transfer crucible 21 first bypasses liquid level in material extracting chamber 5
Oxide film, then control foundation die casting machine (or die forging machine) 23 to do wheel-type size by computer program and take a certain amount of aluminium liquid,
Then slurry transfer crucible 21 is transferred to the lower section of graphite-pipe 19 of slurry quick agitator, graphite-pipe 19 is inserted into slurry and turned
Moving in the slurry of the middle section of crucible 21, graphite-pipe 19 is controlled in 30mm away from slurry transfer crucible bottom, opens magnetic stirrer,
Mixing time was controlled at 20 seconds, and the slurry temperature after stirring is 20~30 DEG C on the material liquid phase line, the slurry solids after stirring
The slurry fast transfer die casting machine (or die forging machine) 23 for stirring qualified is processed 40~50% by the ratio of particle phase.Should
Device can realize that semi solid slurry is continuously quickly prepared.
Claims (3)
1. a kind of device for continuously fast preparing of aluminum alloy wheel of vehicle semi solid slurry, it is characterized in that：The device is connected by material
Continuous melting refinement purification furnace, the quick mixing plant of slurry, slurry transfer crucible, intelligent power-assisted arm composition；Material continuous refining
The quick mixing plant of purification furnace, slurry is distributed in the circle centered on intelligent power-assisted arm (22) with die casting machine or die forging machine (23)
Around；Slurry transfer crucible (21) is arranged on intelligent power-assisted arm (22), and the operation program of intelligent power-assisted arm (22) is defeated
Entering computer, slurry transfer crucible (21) first bypasses liquid level oxide film in material extracting chamber (5), then by computer program according to die casting
Machine or die forging machine (23) do wheel-type size and take a certain amount of aluminium liquid, and it is quick that slurry transfer crucible (21) then is transferred into slurry
Below the graphite-pipe (19) of agitating device, by the slurry of graphite-pipe (19) insertion slurry transfer crucible (21) middle section, open
The magnetic stirrer two (20) for opening the magnetic stirrer one (18) in graphite-pipe (19) and slurry transfer crucible (21) periphery enters
Row electromagnetic agitation, qualified slurry fast transfer die casting machine will be stirred or die forging machine is produced；Material continuous melting refining is net
Change stove to be made up of with material extracting chamber (5) melting chamber (1), moist closet (2), refiner (3), refining clean room (4)；By feeding intake
Raw material A356.2 is added melting chamber (1) by device, and aluminium liquid flows into moist closet (2) after melt material, and warm aluminium liquid flows into
Refine clean room (4), refining purifies qualified aluminium liquid and continuously flows into material extracting chamber (5)；Melting chamber (1), moist closet (2), refining are net
Change room (4) and be respectively provided with heating and temperature controlling device with material extracting chamber (5), control each phase temperature to be allowed to meet technological requirement；Melting chamber
(1), moist closet (2), refining clean room (4) are communicated by window with material extracting chamber (5) and flow into subsequent region successively；In moist closet
(2) in every 3.0~4.0 hours according to slurry usage amount need the ㎏ of addition 2.0~3.0 refining slagging agent stirring after be incubated 10
Carry out within~15 minutes taking off Slag treatment, the temperature of aluminum liquid in moist closet (2) is controlled at 730~755 DEG C；Refiner (3) fills
In the side wall for fitting over refining clean room (4), the aluminium liquid that refining clean room (4) is flowed into by moist closet (2) passes through refiner
(3) continuous purification processing flows into material extracting chamber (5) again；Connected in refining clean room (4) using nitrogen rotary blowing mode
Continuous formula degasification, slagging-off, temperature of aluminum liquid control is at 710~730 DEG C, 650~800 revs/min of spinner velocity, and nitrogen flow 0.5~
1.5 rice3/ hour, the surface of aluminium liquid add 1.0~1.5 ㎏ covertures, and aluminium liquid surface was skimmed once every 2 hours；According to production
The usage amount of process slurry per hour adds bar-shaped aluminium Ti, B grain graining agent and aluminium in aluminum anodizing clean room (4) interior compartment
Strontium and rare earth alterant, for feed postition using the molten method of press-in leaching, it is AlTi to use alloy model specification5B1With AlSr10RE1, add
Measure that strontium content is 0.008%~0.02% 0.10%~0.16% to make the control of aluminium liquid titaniferous amount.
2. a kind of device for continuously fast preparing of aluminum alloy wheel of vehicle semi solid slurry according to claim 1, it is special
Sign is：The quick mixing plant of slurry is stored by switch board (6), wire (7), air-pressure duct (8), paint guide (9), coating
Tank (10), support frame (11), move up and down control panel (12), drive motor one (13), drive motor two (14), drive motor three
(15), paint nozzle (16), scum board (17), magnetic stirrer one (18), graphite-pipe (19), magnetic stirrer two (20) group
Into；Switch board (6) passes through wire (7) and air-pressure duct (8) and drive motor one (13), drive motor two (14), driving
Motor three (15), paint guide (9) are connected and control its work；Drive motor one (13) is assembled in one with paint nozzle (16)
Rise, drive motor two (14) fits together with scum board (17)；Drive motor three (15) controls graphite-pipe (19) by belt
Rotation；Paint nozzle (16) is arranged on scum board (17) and moved up and down on control panel (12), passes through drive motor one (13)
It can be moved up and down with drive motor two (14), move up and down control panel (12) and be assemblied in graphite-pipe (19) on support frame (11)；
The bottom of paint guide (9) insertion coating holding vessel (10), paint guide (9) are connected with paint nozzle (16), compressed air
Conduit (8) is connected by threeway with paint guide (9)；Paint nozzle (16) is assemblied in the left side for moving up and down control panel (12)
Side, scum board (17) are assemblied in the right side for moving up and down control panel (12).
3. a kind of device for continuously fast preparing of aluminum alloy wheel of vehicle semi solid slurry according to claim 2, it is special
Sign is：Installation magnetic stirrer one (18), magnetic stirrer one (18) are fixed on support frame (11) inside graphite-pipe (19)
Top, vacantly in the inside of graphite-pipe (19), electromagnetic agitation is carried out to the centre of slurry in whipping process；Shifted in slurry
The periphery of crucible (19) is provided with magnetic stirrer two (20), and the periphery that crucible (21) is shifted to slurry applies electromagnetic field progress electricity
Magnetic stirs, and the frequency of magnetic stirrer one (18) and magnetic stirrer two (20) is at 10~20 hertz；Electromagnetic agitation power is 12
~20 kilowatts.
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| JP6469141B2 (en) * | 2017-01-26 | 2019-02-13 | ファナック株式会社 | Assembly system, assembly method and assembly unit |
| CN109622909B (en) * | 2019-01-28 | 2021-01-15 | 深圳市银宝山新压铸科技有限公司 | Forming method of high solid-phase semi-solid damping tower |
| CN109732054A (en) * | 2019-02-02 | 2019-05-10 | 东营源纳合金科技有限公司 | It is a kind of special type aluminium alloy semi-solid material preparation and automatic forming device |
| CN111266551A (en) * | 2020-02-04 | 2020-06-12 | 西安交通大学 | Semi-solid short-process intelligent manufacturing system and method for steel flat flange |
| CN112575231A (en) * | 2020-11-16 | 2021-03-30 | 中国兵器科学研究院宁波分院 | Vacuum refining modification treatment method for A356 high-strength aluminum alloy |
| CN114752802A (en) * | 2022-04-22 | 2022-07-15 | 大力神铝业股份有限公司 | High-efficiency 4004 aluminum alloy modification method with low strontium dosage |
| AT526478A1 (en) * | 2022-09-12 | 2024-03-15 | Lkr Leichtmetallkompetenzzentrum Ranshofen Gmbh | Casting system for casting metallic casting material and method for casting metallic casting material |
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