CN105583385A - Continuous rapid preparing device of semi-solid slurry of automobile aluminum alloy wheels - Google Patents
Continuous rapid preparing device of semi-solid slurry of automobile aluminum alloy wheels Download PDFInfo
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- CN105583385A CN105583385A CN201510260934.3A CN201510260934A CN105583385A CN 105583385 A CN105583385 A CN 105583385A CN 201510260934 A CN201510260934 A CN 201510260934A CN 105583385 A CN105583385 A CN 105583385A
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Abstract
The invention discloses a continuous repaid repairing device of semi-solid slurry of automobile aluminum alloy wheels. The device is composed of a continuous melting refining purification furnace, a slurry rapid stirring device, a slurry transfer crucible and an intelligent assistance arm. The material continuous refining purification furnace, the slurry rapid stirring device and die-casting machines (or die forging machines) are distributed on the circumference of the circle with the intelligent assistance arm as the center; the slurry transfer crucible is mounted on the intelligent assistance arm and inputs the motion program of the intelligent assistance arm to a computer; according to the slurry transfer crucible, in a material taking chamber, a liquid face oxide thin film is put aside, a certain amount of molten aluminum is taken, and then is transferred to the position below a graphite pipe of the slurry rapid stirring device, the graphite pipe is inserted into slurry in the center area of the slurry transfer crucible, and an electromagnetic stirrer in the graphite pipe and an electromagnetic stirrer on the periphery of the slurry transfer crucible are started to carry out electromagnetic stirring; the slurry stirred to be qualified is rapidly transferred to the die-casting machines (or die forging machines) for production. According to the technical scheme, semi-solid slurry continuous and rapid preparing and transferring can be achieved, the slurry is stable in quality, and the device is of great significance in semi-solid production of the automobile aluminum alloy wheels.
Description
Technical field
The present invention relates to semi-solid state forming technique field, specifically, relate to a kind of aluminum alloy wheel of vehicle half solidThe device for continuously fast preparing of state slurry.
Background technology
The annual requirement of 2010 whole world automotive wheels has reached 600,000,000, and wherein aluminum vehicle wheel accounts for 65%. Aluminium carIt is forming mode that wheel is manufactured most important link, 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. 20 generationFirst M.C.Flemings professor and doctor D.B.Spencer of discipline Massachusetts Institute Technology at the beginning of the seventies carryThe new method of a kind of metal forming going out, it is that metal or alloy is entered in solidus and liquidus temperature intervalThe new technology of near-net forming is prepared and is realized in row processing, and the method is called as semi-solid-state shaping. Due to this technologyAdopt non-dendrite semi solid slurry, broken traditional dendritic solidification pattern, there are many uniquenesses:Forming temperature is low, has reduced mold hot and has impacted and thermal fatigue strength, has extended die life; Forming temperature is lowProcess of setting Material shrinkage is reduced, and foundry goods forms shrinkage cavity, loose tendency reduces greatly; Fine microstructuresEvenly, mechanical property significantly improves, and the strength of materials is high, effectively lightweight, and the quality forging method that can match in excellence or beauty,But cost is lower than forging method; Significantly reduce the gas content in foundry goods; Casting cycle is short, and production efficiency is high;The complexity of plastic wheel hub front spoke moulding is close to casting. Semi-solid-state shaping throughput rate is fast, suitableClose production in enormous quantities. The semi-solid-state metal that has entered at present commercial Application is abroad mainly aluminium, magnesium alloy,These alloys are the most successfully applied and are mainly concentrated on automotive field, as semisolid die forging aluminium alloy master cylinder body,The parts such as hanger, cylinder head, wheel hub, compressor piston. Be shaped at many developed countries aluminium alloy semi-solidTechnology has entered into large-scale production, and this technology is also described as the near-net forming skill of tool development prospect 21 centuryOne of art.
Semi-solid-state shaping process is mainly divided into rheological molding and thixotropic forming. Rheological molding is solid by halfState slurry directly carries out die casting or die forging; Thixotropic forming be by slurry first make blank then by blank according toTarget part need to carry out cutting of fixed quantity then the blank of cutting of fixed quantity is carried out carrying out after post bake die casting orDie forging. The at present development of semisolid aluminum wheel of vehicle still belongs to blank in China, and my company was from 2009Carry out the research and development of semisolid aluminum alloy wheel of vehicle, although find semi-solid-state shaping in R&D process Zhong Wo companyTemperature coagulation defect lower, material compare than liquid low pressure casting little, but for rheological molding comeSay, because being is prepared into from slurry that to be shaped be integrated process, the quick preparation of high-quality slurry with rapidlyTransfer is crucial, and improper because of slurry solid-liquid ratio in production process, in slurry, solid particle size is large, slurryMiddle solid particulate distributions is inhomogeneous, temperature control, and the factors such as slurry control transfer time all can affect semisolidHow the interior quality of foundry goods, therefore ensure the quick preparation of semi solid slurry, control slurry solid-liquid ratio,In slurry, solid particle size, distribution of particles, temperature control and transfer time are to ensure semi-solid castingThe key of part quality.
Summary of the invention
The object of the invention is to overcome existing aluminum alloy wheel of vehicle semi-solid processing process because making fastStandby cause with transfer that slurry solid-liquid ratio is improper, solid particle in large, the slurry of solid particle size in slurryThe factors such as skewness cause that foundry goods is loose, shrinkage cavity, cold shut, owe the deficiencies such as casting, cold shut, and one is providedThe device for continuously fast preparing of aluminum alloy wheel of vehicle semi solid slurry.
The technical scheme that realizes above method is: a kind of quick system continuously of aluminum alloy wheel of vehicle semi solid slurryStandby device, this device by continuous melting refining purification furnace, slurry rapid stirring equipment, slurry shift crucible withIntelligence power-assisted arm composition, material continuous melting refining purification furnace by melting chamber, moist closet, refining clean room,Refiner, material extracting chamber's composition; Slurry rapid stirring equipment is led by switch board, wire, compressed airPipe, paint guide, coating holding vessel, bracing frame, move up and down control panel, CD-ROM drive motor one, drive horseReach two, CD-ROM drive motor three, paint nozzle, scum board, graphite-pipe, magnetic stirrer one, magnetic stirrerTwo compositions; Material continuous refining purification furnace, slurry rapid stirring equipment and die casting machine (or die forging machine) distributeEnclose at the circumference centered by intelligent power-assisted arm, preparation, the rapid stirring, quick of slurry is convenient in this designShift. By charging device, raw material A356.2 is added to melting chamber in production process, aluminium liquid stream after material fusingEnter moist closet, flow into refining clean room through the aluminium liquid of insulation, refining purifies qualified aluminium liquid and continuously flows into feedingChamber; Melting chamber, moist closet, refining clean room communicate by window with material extracting chamber and flow into successively next region.In moist closet, added 2.0～3.0 ㎏ refining slagging agents to stir every 3.0～4.0 hours according to slurry use amountThe rear insulation processing of skimming for 10～15 minutes, the aluminium liquid temperature control in moist closet is controlled at 730～755 DEG C. EssenceRefining purifier is assemblied on the sidewall of refining clean room, flows into the aluminium liquid process of refining clean room through moist closetThe continuous purification of refiner is processed and is flowed into material extracting chamber again. Melting chamber, moist closet, refining clean room withMaterial extracting chamber all arranges heating and meets technological requirement with the each regional temperature of attemperating unit control. In refining clean roomAdopt nitrogen rotary blowing mode to carry out continous way degasification, slagging-off, temperature of aluminum liquid is controlled at 710～730 DEG C,Spinner velocity is at 650～800 revs/min, 0.5～1.5 meter of nitrogen flow3/ hour, the surface of aluminium liquid adds1.0～1.5 ㎏ covertures were also skimmed once every 2 hours. According to the use amount of slurry in Lv Ye refining clean roomInside take compartment to add bar-shaped aluminium Ti, B grain graining agent and aluminium strontium and rare earth alterant, the mode that adds adopts pressureEnter to soak molten method, the alloy model specification that uses for AlTi5B1With AlSr10RE1, addition is for making aluminium liquid titaniferous amountBe controlled at 0.10%～0.16%, strontium content is 0.008%～0.02%. By the processing of continuous melting refining purification furnaceThe aluminium liquid cleanliness factor of crossing is high, and gassiness, dregginess are low, density is at 2.60g/cm3Above, chemical composition is even,A dendrite is tiny and be uniformly distributed, and Eutectic Silicon in Al-Si Cast Alloys is fine particle shape and is evenly distributed on the crystal boundary of a dendrite, rotten thinChange the lasting decline that is difficult for; Because melt contains a certain amount of AlTi5B1With AlSr10RE1, intermediate alloy, moltenForm the high-melting-point crystallization nuclei that a large amount of disperses distributes in body, above method is high-quality semi solid slurryPreparation lays the foundation. Aluminium liquid after refining purifies flows into its temperature of material extracting chamber and is controlled on this material liquidus curve30～40 DEG C. The electrical control cubicles of slurry quick agitator by wire and air-pressure duct, CD-ROM drive motor one,CD-ROM drive motor two, CD-ROM drive motor three, paint guide are connected and control its work; CD-ROM drive motor one and coatingJet head sets is fitted together, and CD-ROM drive motor two fits together with scum board, and CD-ROM drive motor three is controlled by beltGraphite-pipe rotation processed; Paint nozzle and scum board are arranged on and move up and down on control panel, by CD-ROM drive motor oneCan move up and down with CD-ROM drive motor two; Moving up and down control panel and graphite-pipe is assemblied on bracing frame; Coating is ledPipe inserts the bottom of coating holding vessel, and paint guide is connected with paint nozzle, and air-pressure duct is by threeLead to and be connected with paint guide. Paint nozzle is assemblied in the left side that moves up and down control panel, and scum board is assemblied inMove up and down the right side of control panel. Graphite-pipe is that the central authorities of upper end open, lower end sealing draw the stylostome in hole,At the inner magnetic stirrer one of installing of graphite-pipe, magnetic stirrer one is fixed on the top of bracing frame, unsettledThe inside of graphite-pipe, carries out electromagnetic agitation at whipping process to the centre of slurry; Shift crucible at slurryOuter installation magnetic stirrer two, applies electromagnetic field to the periphery of slurry transfer crucible and stirs, electromagnetic agitationDevice one is with the frequency of magnetic stirrer two at 10～20 hertz, and power of agitator is at 12～20 kilowatts; This processCan ensure that slurry shifts the homogeneous nucleation of slurry in crucible. Before each stirring to graphite-pipe spray withSlow down whipping process corrosion, the aluminium film that after each stirring, scum board adheres to graphite-pipe is cleared up, and avoidsNext whipping process aluminum oxide film and field trash enter slurry affects the cleanliness factor of slurry. Slurry shifts earthenwareCrucible is arranged on intelligent power-assisted arm, and by the operation program input computer of intelligent power-assisted arm, slurry shifts earthenwareCrucible is first bypassed liquid level oxide film in material extracting chamber, then is got according to done wheel type size by computer program controlA certain amount of aluminium liquid, the graphite-pipe below of then slurry being shifted to crucible and be transferred to slurry quick agitator,Graphite-pipe is inserted in the slurry of slurry transfer crucible middle section, graphite-pipe is apart from graphite crucible bottom 25～50㎜, starts CD-ROM drive motor three and carries out mechanical agitation; Open magnetic stirrer simultaneously, mixing time is controlled at 15～25 seconds, the slurry temperature after stirring on this material liquidus curve 20～30 DEG C, the ratio of slurry solids Particle Phase40～50%, produce stirring qualified slurry fast transfer die casting machine (or die forging machine). This skillArt scheme can realize semi solid slurry continuous, quick preparation fast continuously, shift, and stock quality is stable,Produce significant to realizing aluminum alloy wheel of vehicle semisolid.
Brief description of the drawings
Fig. 1, be technical solution of the present invention structural representation.
Fig. 2, be the structural representation of continuous melting refining purification furnace of the present invention.
Fig. 3, be the structural representation of slurry stirring device of the present invention.
Concrete embodiment
With shown in Fig. 3, the continuous of a kind of aluminum alloy wheel of vehicle semi solid slurry prepared fast as shown in Figure 1, Figure 2Device, comprises that material continuous melting refining purification furnace, slurry rapid stirring equipment, slurry shift crucible, intelligenceCan power-assisted arm, material continuous melting refining purification furnace by melting chamber 1, moist closet 2, refiner 3,Refining clean room 4 and material extracting chamber 5 form; Slurry rapid stirring equipment is by switch board 6, wire 7, compression skyAirway 8, paint guide 9, coating holding vessel 10, bracing frame 11, move up and down control panel 12, driveMotor one (13), CD-ROM drive motor two (14), CD-ROM drive motor three (15), paint nozzle 16, scum board 17,Magnetic stirrer 1, graphite-pipe (19), magnetic stirrer two (20) compositions; Material continuous refining purifiesStove, slurry rapid stirring equipment and die casting machine (or die forging machine) 23 be distributed in taking intelligent power-assisted arm 22 as inThe circumference of the heart encloses. By charging device, raw material A356.2 is added to melting chamber 1 in production process, material fusingRear aluminium liquid flows into moist closet 2, flows into refining clean room 4 through the aluminium liquid of insulation, and refining purifies qualified aluminium liquid and connectsAfterflow enters material extracting chamber 5; Melting chamber 1, moist closet 2, refining clean room 4 and material extracting chamber 5 all arrange heating withAttemperating unit, controls each phase temperature and makes it to meet technological requirement; Melting chamber 1, moist closet 2, refining purifyChamber 4 communicates by window with material extracting chamber 5 and flows into successively next region. In moist closet 2 every 3.5 hoursThe 2.5 ㎏ refining slagging agents that need to add according to slurry use amount stir the rear processing of skimming for 12 minutes that is incubated,Aluminium liquid temperature control in moist closet 2 is controlled at 730～755 DEG C. Refiner 3 is assemblied in refining clean roomOn 4 sidewall, the aluminium liquid that is flowed into refining clean room 4 by moist closet 2 passes through the clean continuously of refiner 3Change to process and flow into again material extracting chamber 5. Carrying out continous way in refining clean room 4 interior employing nitrogen rotary blowing mode removesGas, slagging-off, temperature of aluminum liquid is controlled at 710～730 DEG C, and spinner velocity is at 700 revs/min, nitrogen flow1.0 rice3/ hour, the surface of aluminium liquid adds 1.0 ㎏ covertures, and skimmed once every 2 hours in aluminium liquid surface;Use amount according to production process slurry per hour adds bar-shaped aluminium titanium at Lv Ye refining clean room 4 interior compartmentsB grain graining agent and aluminium strontium and rare earth alterant, the mode that adds adopts and is pressed into the molten method of soaking, the alloy model that usesSpecification is AlTi5B1With AlSr10RE1, addition is for making aluminium liquid titaniferous amount be controlled at 0.10%～0.16%, strontium content0.008%～0.02%. By continuous melting refining, purification, the aluminium liquid cleanliness factor that rotten, micronization processes is crossedHeight, gassiness, dregginess are low, and composition is even, and a dendrite is tiny and be uniformly distributed, and Eutectic Silicon in Al-Si Cast Alloys is fine particle shapeBe evenly distributed on the crystal boundary of a dendrite, modifying-refining is difficult for decline lastingly, is the system of high-quality semi solid slurryStandby laying the foundation. Aluminium liquid after refining purifies flows into material extracting chamber's 5 its temperature and is controlled on this material liquidus curve30～40 DEG C. The switch board 6 of slurry quick agitator is by wire 7 and air-pressure duct 8 and drivingMotor one (13), CD-ROM drive motor two (14), CD-ROM drive motor three (15) and paint guide 9 are connected alsoControl its work. CD-ROM drive motor one (13) fits together with paint nozzle 16, CD-ROM drive motor two (14)Fit together with scum board 17; CD-ROM drive motor three (15) rotates by belt control graphite-pipe 19; Be coated withMaterial shower nozzle 16 is arranged on and moves up and down on control panel 12 with scum board 17, by CD-ROM drive motor one (13) withCD-ROM drive motor two (14) can move up and down, and moves up and down control panel 12 and is assemblied in bracing frame with graphite-pipe 19On 11; Paint guide 9 inserts the bottom of coating holding vessel 10, and paint guide 9 is connected with paint nozzle 16Connect, air-pressure duct 8 is connected with paint guide 9 by threeway. Paint nozzle 16 is assemblied in and moves downThe left side of moving control panel 12; Scum board 17 is assemblied in the right side that moves up and down control panel 12. At graphite-pipe 19The inner magnetic stirrer one (18) of installing, magnetic stirrer one (18) be fixed on bracing frame 11 top,Unsettled in the inside of graphite-pipe 19, at whipping process, electromagnetic agitation is carried out in the centre of slurry; At slurryThe periphery of shifting crucible is provided with magnetic stirrer two (20), and the periphery of slurry being shifted to crucible 21 applies electricityMagnetic field, carries out electromagnetic agitation to slurry, the frequency of magnetic stirrer one (18) and magnetic stirrer two (20)Rate is 15 kilowatts of 15 hertz, electromagnetic agitation power. First to graphite-pipe 19 sprayed coatings, every before each stirringInferior stirring is used scum board 17 to clear up adhered to aluminium film and field trash to graphite-pipe 19 afterwards. SlurryShift crucible 21 and be arranged on intelligent power-assisted arm 22, by the operation program input electricity of intelligent power-assisted arm 22Brain, slurry shifts crucible 21 at the interior liquid level oxide film of first bypassing of material extracting chamber 5, then by computer program controlDo wheel type size according to 23 of die casting machines (or die forging machine) and get a certain amount of aluminium liquid, then slurry is shifted to earthenwareCrucible 21 is transferred to graphite-pipe 19 belows of slurry quick agitator, graphite-pipe 19 is inserted to slurry and shift earthenwareIn the slurry of crucible 21 middle sections, graphite-pipe 19 shifts crucible bottom apart from slurry and is controlled at 30 ㎜, opens electricityMagnetic stirrer, mixing time is controlled at 20 seconds, and the slurry temperature after stirring is on this material liquidus curve 20～30DEG C, the ratio of the slurry solids Particle Phase after stirring, 40～50%, will stir qualified slurry fast transferDie casting machine (or die forging machine) 23 is processed. This device can be realized semi solid slurry preparation fast continuously.
Claims (5)
1. a device for continuously fast preparing for aluminum alloy wheel of vehicle semi solid slurry, is characterized in that: this deviceShift crucible, intelligent power-assisted hand by material continuous melting refining purification furnace, slurry rapid stirring equipment, slurryArm composition; Material continuous refining purification furnace, slurry rapid stirring equipment and die casting machine (or die forging machine) (23)The circumference being distributed in centered by intelligent power-assisted arm (22) encloses; Slurry shifts crucible (21) and is arranged on intelligenceEnergy power-assisted arm (22) is upper, and by the operation program input computer of intelligent power-assisted arm (22), slurry shiftsCrucible (21) is first bypassed liquid level oxide film in material extracting chamber (5), then by computer program according to die castingMachine (or die forging machine) (23) the wheel type size of doing is got a certain amount of aluminium liquid, then slurry is shifted to crucible (21)Be transferred to graphite-pipe (19) below of slurry quick agitator, graphite-pipe (19) inserted to slurry and shiftIn the slurry of crucible (21) middle section, open magnetic stirrer one (18) in graphite-pipe (19) andSlurry shift crucible (21) peripheral magnetic stirrer two (20) carry out electromagnetic agitation, it is qualified to stirSlurry fast transfer die casting machine (or die forging machine) produce.
2. the quick preparation dress continuously of a kind of aluminum alloy wheel of vehicle semi solid slurry according to claim 1Put, it is characterized in that: material continuous melting refining purification furnace is clean by melting chamber (1), moist closet (2), refiningGasifying device (3), refining clean room (4) and material extracting chamber (5) composition; By charging device by raw material A356.2Add melting chamber (1), after material fusing, aluminium liquid flows into moist closet (2), flows into refining clean through the aluminium liquid of insulationChange chamber (4), refining purifies qualified aluminium liquid and continuously flows into material extracting chamber (5); Melting chamber (1), moist closet (2),Refining clean room (4) and material extracting chamber (5) all arrange heating and attemperating unit, control each phase temperature and make itMeet technological requirement; Window is passed through with material extracting chamber (5) in melting chamber (1), moist closet (2), refining clean room (4)Communicate and flow into successively next region.
3. the quick preparation dress continuously of a kind of aluminum alloy wheel of vehicle semi solid slurry according to claim 2Put, it is characterized in that: in moist closet (2), added according to the needs of slurry use amount every 3.0～4.0 hoursAfter stirring, 2.0～3.0 ㎏ refining slagging agents are incubated the processing of skimming for 10～15 minutes, in moist closet (2)The control of aluminium liquid temperature is controlled at 730～755 DEG C; Refiner (3) is assemblied on the sidewall of refining clean room (4),The aluminium liquid that is flowed into refining clean room (4) by moist closet (2) is processed through the continuous purification of refiner (3) againFlow into material extracting chamber (5); In refining clean room (4), adopt nitrogen rotary blowing mode carry out continous way degasification,Slagging-off, temperature of aluminum liquid is controlled at 710～730 DEG C, 650～800 revs/min of spinner velocities, nitrogen flow0.5～1.5 meter3/ hour, the surface of aluminium liquid adds 1.0～1.5 ㎏ covertures, and aluminium liquid surface is little every 2In time, skims once; According to use amount interval in Lv Ye refining clean room (4) of production process slurry per hourFormula adds bar-shaped aluminium Ti, B grain graining agent and aluminium strontium and rare earth alterant, and the mode that adds adopts the molten method of soaking that is pressed into,The alloy model specification that uses for AlTi5B1With AlSr10RE1, addition is for being controlled at aluminium liquid titaniferous amount0.10%～0.16%, strontium content is 0.008%～0.02%.
4. the quick preparation dress continuously of a kind of aluminum alloy wheel of vehicle semi solid slurry according to claim 1Put, it is characterized in that: slurry rapid stirring equipment by switch board (6), wire (7), air-pressure duct (8),Paint guide (9), coating holding vessel (10), bracing frame (11), move up and down control panel (12), CD-ROM drive motorOne (13), CD-ROM drive motor two (14), CD-ROM drive motor three (15), paint nozzle (16), scum board (17),Magnetic stirrer one (18), graphite-pipe (19), magnetic stirrer two (20) compositions; Switch board (6) passes throughWire (7) and air-pressure duct (8) and CD-ROM drive motor one (13), CD-ROM drive motor two (14), CD-ROM drive motorThree (15), paint guide (9) is connected and controls its work; CD-ROM drive motor one (13) and paint nozzle (16)Fit together, CD-ROM drive motor two (14) fits together with scum board (17); CD-ROM drive motor three (15)By the rotation of belt control graphite-pipe (19); Paint nozzle (16) is arranged on and moves up and down control with scum board (17)Making sheet (12) is upper, can move up and down by CD-ROM drive motor one (13) and CD-ROM drive motor two (14), above moves downMoving control panel (12) is assemblied on bracing frame (11) with graphite-pipe (19); Paint guide (9) inserts coating holding vessel(10) bottom, paint guide (9) is connected with paint nozzle (16), air-pressure duct (8) by threeway withPaint guide (9) is connected; Paint nozzle (16) is assemblied in the left side that moves up and down control panel (12), scum board (17)Be assemblied in the right side that moves up and down control panel (12).
5. the quick preparation dress continuously of a kind of aluminum alloy wheel of vehicle semi solid slurry according to claim 4Put, it is characterized in that: at inner magnetic stirrer one (18), the magnetic stirrer one (18) installed of graphite-pipe (19)Be fixed on the top, unsettled in the inside of graphite-pipe (19) of bracing frame (11), whipping process to slurry inElectromagnetic agitation is carried out at heart position; The periphery of shifting crucible (19) at slurry is provided with magnetic stirrer two (20),The periphery of slurry being shifted to crucible (21) applies electromagnetic field and carries out electromagnetic agitation, magnetic stirrer one (18) withThe frequency of magnetic stirrer two (20) is at 10～20 hertz; Electromagnetic agitation power is at 12～20 kilowatts.
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| CN108357051A (en) * | 2017-01-26 | 2018-08-03 | 发那科株式会社 | Package system, assemble method and module units |
| CN109622909A (en) * | 2019-01-28 | 2019-04-16 | 深圳市银宝山新压铸科技有限公司 | A kind of forming method of high solid phase semisolid damping tower |
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| 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 |
| WO2024055052A1 (en) * | 2022-09-12 | 2024-03-21 | Lkr Leichtmetallkompetenzzentrum Ranshofen Gmbh | Casting installation for casting metal casting material and method for casting metal casting material |
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| 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 |
| WO2024055052A1 (en) * | 2022-09-12 | 2024-03-21 | Lkr Leichtmetallkompetenzzentrum Ranshofen Gmbh | Casting installation for casting metal casting material and method for casting metal casting material |
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