CN101367123A - Method for manufacturing and shaping semi-solid alloy slurry - Google Patents
Method for manufacturing and shaping semi-solid alloy slurry Download PDFInfo
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- CN101367123A CN101367123A CNA2008101072529A CN200810107252A CN101367123A CN 101367123 A CN101367123 A CN 101367123A CN A2008101072529 A CNA2008101072529 A CN A2008101072529A CN 200810107252 A CN200810107252 A CN 200810107252A CN 101367123 A CN101367123 A CN 101367123A
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Abstract
The invention provides a method for the preparation and the forming of semi-solid alloy slurry. The method is characterized in that the processing steps are as follows: the alloy melt mass with high superheat degree is cast in a cooling channel which can do non-whole circle rotary oscillation around a central shaft line according to certain frequency and amplitude, and enters a slurry collector, and the semi-solid slurry with low solid phase ratio containing a great deal of free crystals is obtained; simultaneously, the following cooling speed and the temperature distribution of the alloy slurry are controlled, the temperature and the solid phase ratio of the alloy slurry are accurately controlled, so that the semi-solid slurry with required solid phase ratio is obtained; and the semi-solid slurry is transferred to a shot chamber of a die casting machine or an extrusion casting machine, so that the semi-solid slurry is pressed for forming. The method has the advantages that the semi-solid slurry with high quality can be more effectively prepared, the primary phase of the prepared semi-solid slurry is small, is spherical or nearly spherical and is evenly distributed in the substrate, and no liquid phase is hidden in the primary solid phase.
Description
Technical field
The present invention relates to a kind of alloy pulp preparation and the method that is shaped, relate in particular to a kind of semi-solid alloy slurry preparation and the method that is shaped.
Background technology
Semi-solid state forming technique is acknowledged as one of 21 century the most promising light-alloy near-net-shape technology, comprises two process routes of thixotropic forming and rheological molding.Through 30 years of development, semi-solid state forming technique has experienced from the rheological molding to the thixotropic forming develop in spirals course to rheological molding again.Compare with thixotropic forming, rheological molding has the in time local recovery of flow process weak point, waste material, low energy, becomes the emphasis and the focus of domestic and international research.
The method of existing semi-solid alloy slurry preparation has a lot, and for example BP UK 9922696 has proposed double helix mechanical agitation rheological molding technology.Chinese patent CN 01109074.X has described a kind of cone bucket type semi-solid rheological molding device, and CN 02104349.3 has proposed a kind of method and apparatus for preparing semi-solid alloy slurry.European patent EP 0745691A1 has proposed New Rheocasting (NRC) technology.U.S. Pat 6645323B2 has proposed Semi-solid Rheocasting (SSR) rheological molding technology.
Discovering of recent years need not be smashed arborescent structure and also can be obtained tiny, subglobose microstructure of semisolid.At the process of setting initial stage, by control forming core and growth process, soon alloy can produce a large amount of nucleus near remaining on liquidus temperature, limits nucleus growth simultaneously, can obtain microstructure of semisolid.The mechanical agitation of above-mentioned introduction, electromagnetic agitation, SSR, NRC are exactly typical case's representative of this theoretical thought.In these technologies, all adopted basically " low overheat ", promptly earlier the alloy melt temperature has been controlled near the alloy liquid phase line temperature, poured into a mould again or carry out various stirrings or vibration.Similarly technology also has: SLC (Sub-Liquidus Casting, document Jorstad J L, Thieman M, KammR.Sub liquidus casting (SLC): process concept and product properties[J] .Transactions of the American Foundry Society, 2003 (111): 399-405.), SEED (Swirled Enthalpy Equilibration Device, Canadian Patent 6428636), CRP (Continuous Rheoconversion Process, document Apelian D, Pan Q Y, Findon M.Low Cost and Energy Efficient Methods for theManufacture of Semi-solid (SSM) Feedstock[J] .Die Casting Engineer, 2004,48 (1): 22-28.), liquidus curve casting (Chinese patent CN 01116406.9), ultrasonic vibration (Chinese patent CN 200310115377.3), H-NCM (Hong-NanoCasting Method, U.S. Pat 6938627).But above-mentioned technology too much depends on the low overheat cast.Though being cast with, low overheat is beneficial to crystal grain thinning, but require pouring temperature must be controlled near the liquidus curve, very high to temperature controlled precision and uniformity requirement, big difficulty is arranged in practical operation, the uniformity aspect of large volume slurry microstructure particularly, this is the major reason that above-mentioned technology does not obtain industrial promotion and application as yet.At present, the alloy of rheological molding research mainly concentrates on the foundry alloy, and as ZL101, AZ91D etc., general casting alloy freezing range is bigger, is convenient to pulp preparation, but the mechanical property after being shaped is lower.Wrought aluminium alloy is one of light metal that is widely used in Aeronautics and Astronautics and automobile industry, all adopts the thixotroping contour forging technique to form at present basically, but the correlative study of wrought aluminium alloy rheological molding and report are seldom.In addition, alloy to inflammable easy oxidation, as magnesium alloy, Al-Li is that the research of alloy also is very limited, inflammable easy oxidation characteristic has all proposed specific (special) requirements to technology and equipment, the complexity of meeting increase equipment and technology, above-mentioned rheocasting technology can not fully address this problem, and can produce secondary pollution to alloy melt in the pulp preparation process.
In sum, in the ascendant in the world wide to the research of rheological molding, above-mentioned various preparation semi solid slurry and rheological molding technology and equipment all have its advantage and defective, develop the emphasis that preparation of new semi solid slurry and rheological molding technology and equipment remain the semi-solid-state shaping area research, so that simplify technology, reduce cost, reduce secondary pollution that the pulp preparation process produces alloy melt, enlarge and be suitable for alloy species.
Summary of the invention
The purpose of this invention is to provide a kind of semi-solid alloy slurry preparation and the method that is shaped, this method can obtain the semi-solid alloy slurry of tiny, even distribution, spherical particle fast, and this slurry is shaped under pressure, can realize the continuous preparation of slurry, effectively reduce the secondary pollution of preparation process to alloy melt, improve the mechanical property of product, reduce production costs.
The present invention is achieved like this, and its process step is as follows:
1, with alloy fusing in melting furnace, refining and slagging-off.The temperature of this alloy melt is adjusted to the above 0-200 of its liquidus temperature ℃, the best is 30-150 ℃, this alloy melt is poured into by loading hopper in the cooling duct of an inclination, this alloy melt flows downward along the cooling duct inwall under self gravitation again.And the temperature that alloy melt is flowed through behind the cooling duct is lower than 0.1-8 ℃ of its liquidus temperature, obtains to contain the semi solid slurry of the low solid rate of a large amount of free crystal.
2, make the alloy melt of the cooling duct of flowing through flow into the slurry gatherer, by control heating element heater and cooling element, the cooling velocity of regulation and control semi-solid alloy slurry, regulate the Temperature Distribution of semi-solid alloy slurry, make this semi-solid alloy slurry be issued to predetermined temperature in predetermined cooling velocity, semi-solid alloy slurry temperature that should be predetermined is corresponding to the fraction solid of 0.001-0.7, and best fraction solid is 0.3-0.6.Should predetermined cooling velocity be 0.1-5 ℃/s, be preferably 0.1-3 ℃/s, and under this cooling velocity, make the semi-solid alloy slurry temperature field even, the temperature difference of the bottom of this semi-solid alloy slurry, top, limit portion and heart portion is ±-3 ℃.The semi-solid alloy slurry that will reach predetermined temperature or predetermined fraction solid is sent into the injection chamber of die casting machine or the injection chamber of extrusion casting machine, makes semi solid slurry continue to solidify under pressure, finishes a rheological molding circulation.
3 or the alloy melt of the cooling duct of flowing through is not flowed in the slurry gatherer, but flow directly into the injection chamber or the extrusion casting machine injection chamber of die casting machine, the further cooling of this semi-solid alloy slurry of control makes this semi solid slurry be issued to the temperature of predetermined fraction solid or this fraction solid correspondence in predetermined cooling velocity.Should predetermined fraction solid be 0.1-0.9, but optimum range be 0.3-0.7.Should predetermined cooling velocity be 0.1-15 ℃/s, the best be 0.2-5 ℃/s.In this cooling procedure, temperature difference ±-3 of the semi-solid alloy slurry integral body before control is shaped ℃.After semi solid slurry reached predetermined fraction solid or temperature, this semi solid slurry was pushed mold cavity by drift, finished semi solid slurry under pressure and was shaped.
In the methods of the invention, alloy melt flows into the cooling duct from the pouring mouth of top, cooling duct, flows out the cooling duct afterwards again.The material of this cooling duct can be metal or nonmetal, should select according to the material of alloy melt; The inner wall shape of this cooling duct can be cylindrical, conical or polygon without limits.
In the methods of the invention, the angle of cooling duct central axis and horizontal direction is the 2-90 degree, and the best is the 20-60 degree; The operating temperature of the cooling duct that tilts should be lower than the liquidus temperature of alloy melt, the best is the 5%-30% of alloy liquid phase line temperature, make alloy melt cooling, thereby make the alloy melt temperature that flows out the cooling duct be lower than 0.1-8 ℃ of its liquidus temperature via the cooling duct.
In the methods of the invention, this cooling duct is done periodic swinging swing (non-complete cycle rotation) around its central axis by certain frequency and amplitude.Amplitude of fluctuation for this cooling duct around the angle that its central axis turned over, be the 0.1-360 degree, the best is the 1-120 degree; Hunting frequency is the number of times that swing around its central axis this cooling duct in the per minute, is 1-500 time/minute.
In the methods of the invention, in the described step 1-3 process, alloy melt all is in sealing state, according to the material of alloy melt, can charge into protective gas in cooling duct and slurry gatherer, avoids high-temperature fusant to contact with air.
In the present invention, the device of realizing this method is:
It comprises loading hopper, cooling duct, driven wheel, gas shield valve, drop guide, slurry gatherer, push rod, slurry control stove, cooling element, heating element heater, drift, mould, injection chamber, support.It is characterized in that loading hopper connects the cooling duct, cooling duct and horizontal plane are angled, alloy melt is flowed downward along the cooling duct inwall under self gravitation, the cooling duct outer wall connects driven wheel, make the cooling duct do periodically swinging swing around its central axis by driven wheel, support is the cooling duct fixedly.Connect the gas shield valve in the cooling duct lower port; the gas shield valve connects drop guide; drop guide connects the slurry gatherer; the slurry gatherer is in slurry control stove; slurry control stove connects heating element heater and cooling element respectively, by regulating heating element heater and cooling element, the semi-solid alloy slurry in the slurry gatherer is cooled off under predetermined cooling velocity; and connect push rod in slurry gatherer lower end, push rod can promote the slurry gatherer semi-solid alloy slurry is poured in the mould.Pour the semi-solid alloy slurry in the slurry gatherer into injection chamber, injection chamber connects mould, and drift is free to slide in injection chamber, the semi-solid alloy slurry in the injection chamber can be pushed in the mould by drift, finishes semi solid slurry under pressure and is shaped.
Technique effect of the present invention is: prepare the high-quality semi solid slurry more efficiently, in the semi solid slurry of preparation primary phase tiny, spherical or subsphaeroidal, be evenly distributed in the matrix, and nascent solid phase inner do not have wrap liquid phase.The inventive method has been cancelled complicated mechanical and has been stirred and electromagnetic agitation, has made full use of the shear action that the alloy melt self gravitation produces, and has improved the operability of blank preparation technics in actual production greatly.Further control follow-up cooling velocity and the Temperature Distribution of this alloy pulp, accurately control the temperature and the solid rate of alloy pulp, obtain the semi solid slurry of required solid rate.The post bake process in the thixotropic forming has been cancelled in this rheo-diecasting or rheology extrusion casint, simplifies the shaping technological process, has reduced equipment investment, is easy to realize industrialization.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is building mortion one structural representation of the present invention.
Fig. 3 is building mortion two structural representations of the present invention.
The specific embodiment
Embodiment 1:
1, industrial ZL 101 alloy is melted in resistance furnace, when treating that the alloy melt temperature is reduced to 720 ℃, the carbon trichloride after will drying with bell jar is pressed into the melt bottom, carries out degasification, the deslagging refining of alloy melt and handles, at last the temperature of alloy melt is adjusted to 690 ℃, and insulation.
2, be that directly to pour into preheat temperature be in 620 ℃ the loading hopper for 75 ℃ ZL101 alloy melt with the degree of superheat, alloy melt flows into from the horizontal by the cooling duct at 30 degree angles through loading hopper, and the cooling duct of flowing through under the state of Oscillation Amplitude 60 degree, vibration frequency 60 times/minute.The temperature of cooling duct remains on 120 ℃.
3, last, alloy melt flows into the slurry gatherer.The slurry gatherer links to each other with temperature controller, the heating element heater of this temperature controller adopts resistance wire heating, cooling element to adopt recirculated water to cool off, and makes the semi solid slurry in the slurry gatherer cool off with the speed of 0.6 ℃/s by the power of control heating element heater and the cooling water flow of cooling element.By semi solid slurry being cooled to different temperature, just can obtain the semi solid slurry of different solid rates.
Embodiment 2
1, industrial A1429 aluminium alloy is melted in resistance furnace, when treating that the alloy melt temperature is reduced to 780 ℃, the carbon trichloride after will drying with bell jar is pressed into the melt bottom, carries out degasification, the deslagging refining of alloy melt and handles, at last the temperature of alloy melt is adjusted to 730 ℃, and insulation.
2, open driving mechanism and gas shield device; with the degree of superheat is that directly to pour into preheat temperature be in 650 ℃ the loading hopper for 93 ℃ A1429 alloy melt; alloy melt flows into from the horizontal by the cooling duct at 50 degree angles through loading hopper; and the cooling duct of under the state of Oscillation Amplitude 90 degree, vibration frequency 85 times/minute, flowing through, the temperature of cooling duct remains on 250 ℃.
3, last, alloy melt flows into the slurry gatherer.The slurry gatherer links to each other with temperature controller, the heating element heater of this temperature controller adopts resistance wire heating, cooling element to adopt recirculated water to cool off, and makes the semi solid slurry in the slurry gatherer cool off with the speed of 0.2 ℃/s by the power of control heating element heater and the cooling water flow of cooling element.By semi solid slurry being cooled to different temperature, just can obtain the semi solid slurry of different solid rates.
Embodiment 3
1, industrial ZL 101 alloy is melted in resistance furnace, when treating that the alloy melt temperature is reduced to 720 ℃, the carbon trichloride after will drying with bell jar is pressed into the melt bottom, carries out degasification, the deslagging refining of alloy melt and handles, at last the temperature of alloy melt is adjusted to 680-682 ℃, and insulation.
2, open driving mechanism, it is in 620 ℃ the loading hopper that the ZL101 alloy melt is directly poured into preheat temperature, alloy melt flows into from the horizontal by the cooling duct at 35 degree angles through loading hopper, and the cooling duct of flowing through under the state of Oscillation Amplitude 60 degree, vibration frequency 120 times/minute.
3, alloy melt flows into the slurry gatherer, and the control temperature controller makes semi solid slurry cool off with the speed of 0.8 ℃/s, and makes the temperature difference of bottom, top, limit portion and heart portion of semi-solid alloy slurry be ± 1 ℃.
4, in the slow cooling procedure of semi solid slurry, the temperature of semi solid slurry is gathered in real time.When semi solid slurry reaches predetermined fraction solid and is 0.5, open ejecting mechanism this semi solid slurry is released slurry control stove together with the slurry gatherer, this semi solid slurry is poured in the injection chamber of die casting machine, under the effect of drift, semi solid slurry is pushed in the mould, finish the shaping of semi solid slurry under pressure.
Embodiment 4
1, industrial A1429 aluminium alloy is melted in resistance furnace, when treating that the alloy melt temperature is reduced to 780 ℃, the carbon trichloride after will drying with bell jar is pressed into the melt bottom, carries out degasification, the deslagging refining of alloy melt and handles, at last the temperature of alloy melt is adjusted to 710 ℃, and insulation.
2, open driving mechanism and gas shield device; it is in 650 ℃ the loading hopper that the A1429 alloy melt is directly poured into preheat temperature; alloy melt flows into cooling duct from the horizontal by miter angle through loading hopper, and the cooling duct of flowing through under the state of Oscillation Amplitude 15 degree, vibration frequency 180 times/minute.
3, alloy melt flows into the slurry gatherer, and the control temperature controller makes semi solid slurry cool off with the speed of 0.3 ℃/s, and makes the temperature difference of bottom, top, limit portion and heart portion of semi-solid alloy slurry be ± 1 ℃.
4, in the slow cooling procedure of semi solid slurry, the temperature of semi solid slurry is gathered in real time.When semi solid slurry reaches fraction solid 0.6, open ejecting mechanism this semi solid slurry is released slurry control stove together with the slurry gatherer, this semi solid slurry is poured in the injection chamber of extrusion casting machine, under the effect of drift, semi solid slurry is pushed in the mould, finish the shaping of semi solid slurry under pressure.
Embodiment 5
1, industrial AZ91D magnesium alloy is melted in resistance furnace, when treating that the alloy melt temperature is reduced to 720 ℃, the carbon trichloride after will drying with bell jar is pressed into the melt bottom, carries out degasification, the deslagging refining of alloy melt and handles, at last the temperature of alloy melt is adjusted to 670 ℃, and insulation.
2, open driving mechanism and gas shield device; it is in 620 ℃ the loading hopper that the AZ91D magnesium alloy fused mass is directly poured into preheat temperature; alloy melt flows into from the horizontal by the cooling duct at 60 degree angles through loading hopper, and the cooling duct of flowing through under the state of Oscillation Amplitude 10 degree, vibration frequency 150 times/minute.
3, alloy melt flows directly in the injection chamber of die casting machine through drop guide.By regulating temperature controller, further control the cooling of semi-solid alloy slurry in injection chamber, make semi solid slurry cool off, and make the temperature difference of bottom, top, limit portion and heart portion of semi-solid alloy slurry be ± 1 ℃ with the speed of 0.8 ℃/s.
4, in the slow cooling procedure of semi solid slurry, the temperature of semi solid slurry is gathered in real time.When semi solid slurry reaches fraction solid 0.4, open the injection button, under the effect of drift, semi solid slurry is pushed in the mould, finish the shaping of semi solid slurry under pressure.
As Fig. 1, Fig. 2, shown in Figure 3, the required device of the foregoing description comprises loading hopper 1, cooling duct 2, driven wheel 3, gas shield valve 4, drop guide 5, slurry gatherer 6, push rod 7, slurry control stove 8, cooling element 9, heating element heater 10, drift 11, mould 12, injection chamber 13, support 14.It is characterized in that loading hopper 1 connects cooling duct 2, cooling duct 2 is angled with horizontal plane, 2 inwalls flow downward along the cooling duct under self gravitation to make alloy melt, cooling duct 2 outer walls connect driven wheel 3, make cooling duct 2 do periodically swinging swing around its central axis by driven wheel 3, support 14 is cooling duct 2 fixedly.2 lower port connect gas shield valve 4 in the cooling duct; gas shield valve 4 connects drop guide 5; drop guide 5 connects slurry gatherer 6; slurry gatherer 6 is in slurry control stove 8; slurry control stove 8 connects heating element heater 10 and cooling element 9 respectively; by regulating heating element heater 10 and cooling element 9; semi-solid alloy slurry in the slurry gatherer 6 is cooled off under predetermined cooling velocity; and connect push rod 7 in slurry gatherer 6 lower ends, push rod 7 can promote slurry gatherer 6 semi-solid alloy slurry is poured in the mould 12.Pour the semi-solid alloy slurry in the slurry gatherer 6 into injection chamber 13, injection chamber 13 connects mould 12, drift 11 is free to slide in injection chamber 13, the semi-solid alloy slurry in the injection chamber 13 can be pushed in the mould 12 by drift 11, finishes semi solid slurry under pressure and is shaped.
Claims (3)
1. a semi-solid alloy slurry prepares and the method that is shaped, and it is characterized in that preparing as follows:
(1) with alloy fusing in melting furnace, refining and slagging-off, the temperature of this alloy melt is adjusted to the above 0-200 of its liquidus temperature ℃, the best is 30-150 ℃, pour into this alloy melt in the cooling duct of an inclination by loading hopper again, this alloy melt flows downward along the cooling duct inwall under self gravitation, and the temperature that alloy melt is flowed through behind the cooling duct is lower than 0.1-8 ℃ of its liquidus temperature, obtains to contain the semi solid slurry of the low solid rate of a large amount of free crystal;
(2) make the alloy melt of the cooling duct of flowing through flow into the slurry gatherer, by control heating element heater and cooling element, the cooling velocity of regulation and control semi-solid alloy slurry, regulate the Temperature Distribution of semi-solid alloy slurry, make this semi-solid alloy slurry be issued to predetermined temperature in predetermined cooling velocity, semi-solid alloy slurry temperature that should be predetermined is corresponding to the fraction solid of 0.001-0.7, best fraction solid is 0.3-0.6, should predetermined cooling velocity be 0.1-5 ℃/s, be preferably 0.1-3 ℃/s, under this cooling velocity, make the semi-solid alloy slurry temperature field even, the bottom of this semi-solid alloy slurry, the top, the temperature difference of limit portion and heart portion is ±-3 ℃, the semi-solid alloy slurry that will reach predetermined temperature or predetermined fraction solid is sent into the injection chamber of die casting machine, or the injection chamber of extrusion casting machine, make semi solid slurry under pressure, continue to solidify, finish a rheological molding circulation;
(3) or the alloy melt of the cooling duct of flowing through is not flowed in the slurry gatherer, but flow directly into the injection chamber of die casting machine, or extrusion casting machine injection chamber, the further cooling of this semi-solid alloy slurry of control, make this semi solid slurry be issued to the temperature of predetermined fraction solid or this fraction solid correspondence in predetermined cooling velocity, should predetermined fraction solid be 0.1-0.9, but optimum range is 0.3-0.7, should predetermined cooling velocity be 0.1-15 ℃/s, the best is 0.2-5 ℃/s, in this cooling procedure, temperature difference ±-3 of the semi-solid alloy slurry integral body before control is shaped ℃, after semi solid slurry reaches predetermined fraction solid or temperature, this semi solid slurry is pushed mold cavity by drift, finishes semi solid slurry under pressure and is shaped.
2. a kind of semi-solid alloy slurry preparation as claimed in claim 1 and the method that is shaped, the angle that it is characterized in that cooling duct central axis and horizontal direction is the 2-90 degree, the best is the 20-60 degree; The operating temperature of the cooling duct that tilts should be lower than the liquidus temperature of alloy melt, and the best is the 5%-30% of alloy liquid phase line temperature.
3. a kind of semi-solid alloy slurry preparation as claimed in claim 1 and the method that is shaped, it is characterized in that this cooling duct does periodic non-complete cycle swinging swing around its central axis by certain frequency and amplitude, amplitude of fluctuation for this cooling duct around angle that its central axis turned over, be the 0.1-360 degree, the best is the 1-120 degree; Hunting frequency is the number of times that swing around its central axis this cooling duct in the per minute, is that alloy melt all is in sealing state 1-500 time/minute.
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| CN103341596A (en) * | 2013-07-16 | 2013-10-09 | 北京科技大学 | Shunt converging pouring gate preparation semisolid slurry and rheoforming device |
| CN103480829A (en) * | 2012-06-12 | 2014-01-01 | 东芝机械株式会社 | Apparatus for producing semi-solidified metal, method for producing semi-solidified metal, and semi-solidified metal |
| CN103495717A (en) * | 2013-10-14 | 2014-01-08 | 南昌大学 | Automatic production line for semisolid machining |
| CN103521733A (en) * | 2013-10-14 | 2014-01-22 | 南昌大学 | Semisolid processing production line |
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| CN106413940A (en) * | 2014-05-16 | 2017-02-15 | 吉斯科有限公司 | Process for preparing molten metals for casting at a low to zero superheat temperature |
| CN106623819A (en) * | 2016-11-25 | 2017-05-10 | 昆明理工大学 | Prepration method for semisolid alloy slurry |
| CN107116184A (en) * | 2017-04-27 | 2017-09-01 | 苏州春兴精工股份有限公司 | A kind of preparation technology of semi-solid-state metal slurry |
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| CN103480829A (en) * | 2012-06-12 | 2014-01-01 | 东芝机械株式会社 | Apparatus for producing semi-solidified metal, method for producing semi-solidified metal, and semi-solidified metal |
| US9586261B2 (en) | 2012-06-12 | 2017-03-07 | Toshiba Kikai Kabushiki Kaisha | Apparatus for producing semi-solidified metal, method for producing semi-solidified metal, and semi-solidified metal |
| CN103341596A (en) * | 2013-07-16 | 2013-10-09 | 北京科技大学 | Shunt converging pouring gate preparation semisolid slurry and rheoforming device |
| CN103341596B (en) * | 2013-07-16 | 2015-11-11 | 北京科技大学 | A kind of shunting converges running channel and prepares semi solid slurry and rheopectic shaper |
| CN103495717A (en) * | 2013-10-14 | 2014-01-08 | 南昌大学 | Automatic production line for semisolid machining |
| CN103521733A (en) * | 2013-10-14 | 2014-01-22 | 南昌大学 | Semisolid processing production line |
| CN103495717B (en) * | 2013-10-14 | 2016-01-20 | 南昌大学 | A kind of semi-solid processing automatic assembly line |
| CN106413940A (en) * | 2014-05-16 | 2017-02-15 | 吉斯科有限公司 | Process for preparing molten metals for casting at a low to zero superheat temperature |
| CN104096815A (en) * | 2014-06-30 | 2014-10-15 | 南昌大学 | Semi-solid state machining and integrating system |
| CN104096815B (en) * | 2014-06-30 | 2015-12-30 | 南昌大学 | A kind of semi-solid processing integrated system |
| CN107214311A (en) * | 2016-03-22 | 2017-09-29 | 焦作市合鑫机械有限公司 | A kind of vibrating crystallizer |
| CN106623819A (en) * | 2016-11-25 | 2017-05-10 | 昆明理工大学 | Prepration method for semisolid alloy slurry |
| CN107116184A (en) * | 2017-04-27 | 2017-09-01 | 苏州春兴精工股份有限公司 | A kind of preparation technology of semi-solid-state metal slurry |
| CN111375748A (en) * | 2018-12-28 | 2020-07-07 | 井冈山大学 | Vibration slope casting device |
| CN113634724A (en) * | 2020-05-10 | 2021-11-12 | 昆山祁御新材料科技有限公司 | Method and device for preparing superfine high-purity metal blank |
| CN113634724B (en) * | 2020-05-10 | 2022-11-18 | 昆山祁御新材料科技有限公司 | Method and device for preparing superfine high-purity metal blank |
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