CN1618549A - Method of preparing semi solid state moltem metal/blank by ultrasonic treatment to control solidification and its device - Google Patents
Method of preparing semi solid state moltem metal/blank by ultrasonic treatment to control solidification and its device Download PDFInfo
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- CN1618549A CN1618549A CNA2003101153773A CN200310115377A CN1618549A CN 1618549 A CN1618549 A CN 1618549A CN A2003101153773 A CNA2003101153773 A CN A2003101153773A CN 200310115377 A CN200310115377 A CN 200310115377A CN 1618549 A CN1618549 A CN 1618549A
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- 239000007787 solid Substances 0.000 title claims abstract description 34
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 32
- 239000002184 metal Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims description 71
- 238000007711 solidification Methods 0.000 title description 3
- 230000008023 solidification Effects 0.000 title description 3
- 238000009210 therapy by ultrasound Methods 0.000 title 1
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 21
- 239000000956 alloy Substances 0.000 claims abstract description 21
- 238000007493 shaping process Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000002002 slurry Substances 0.000 claims description 35
- 238000004886 process control Methods 0.000 claims description 13
- 230000008676 import Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000011810 insulating material Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 238000007670 refining Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 abstract description 10
- 238000001816 cooling Methods 0.000 abstract description 9
- 238000000465 moulding Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 3
- 239000007791 liquid phase Substances 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 18
- 238000002360 preparation method Methods 0.000 description 14
- 238000005266 casting Methods 0.000 description 5
- 238000010907 mechanical stirring Methods 0.000 description 5
- 229910000861 Mg alloy Inorganic materials 0.000 description 3
- 238000004512 die casting Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000010099 solid forming Methods 0.000 description 2
- 230000009974 thixotropic effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 229910001278 Sr alloy Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- VHHHONWQHHHLTI-UHFFFAOYSA-N hexachloroethane Chemical compound ClC(Cl)(Cl)C(Cl)(Cl)Cl VHHHONWQHHHLTI-UHFFFAOYSA-N 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
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- Continuous Casting (AREA)
Abstract
An ultrasonic technology for preparing semi-solid molten metal (or metallic blank) by controlling the setting-up includes controlling the temp of molten alloy in the temp range of 0-15 K. higher than liquid-phase threshold, ultrasonic treating at the temp range from TL-5K to TL+15K for 0.1-5 min, quick cooling to the temp which is 0-10K lower than semi-solid shaping temp TSS, heating it to the temp from TSS-5K to TSS+5K, holding the temp for 0.1-5 min, and quickly injecting it in moulding cavity. Its apparatus is composed of crucible, ultrasonic unit, material container, injectior and mould.
Description
Technical field
The invention belongs to the Semi-Solid Metals Forming technology, particularly solidify method and the device for preparing semi-solid metal slurry/blank for supersound process control.
Background technology
Therefore semi-solid state forming technique is compared with liquid forming technique with traditional solid molding technology, has its unique advantage, from it proposes so far three more than ten years, has attracted numerous investigators' attention.Press operational path and divide, semi-solid state forming technique can be divided into thixotropic forming and rheological molding two classes.Thixotropic forming is broadly divided into three phases, promptly prepares semi-solid blank, semi-solid blank second-heating to semi-solid temperature insulation processing, the final shaping.And the rheological molding flow process is shorter, also needs preparation semi solid slurry, direct forming then earlier.Therefore, the preparation of semi-solid blank or slurry becomes the basis that this technical development is used.
At present, the method that is used to prepare semi-solid blank is numerous, is broadly divided into liquid preparation method (stirring or non-stirring class methods), solid-state preparation method and control casting.Stirring class methods uses also common the earliest, as mechanical mixing method (as United States Patent (USP) the 4th, 116, No. 423, the 5th, 040, No. 589, the 5th, 501, No. 266, open 1-170565 number of Japanese Patent, 1-178345 number, 1-192447 number, U.S. Patent Publication the 3rd, 902, No. 544, the 3rd, 948, No. 625, the 3rd, 958, No. 650, WIPO patent disclosure the 01/23124th, 01/09401,02/13993, Chinese publication CN 2471450 etc.), electromagnetic stirring method (as U.S. Patent Publication No. 4229210, No. 4434837 etc.).Shearing-cooling-rolling that United States Patent (USP) proposes for No. 555926 also belongs to the stirring class methods.Non-stirring class methods have chemical grain refining method, spray-up method etc.Solid-state preparation method has SIMA (strain inducing fusing activation) method, powder pressing method, powder metallurgic method etc.
Above-mentioned each class methods of mentioning respectively have characteristics, but in industry, obtain at present to use have only electromagnetic stirring method and SIMA method.The reason that additive method is difficult to obtain industrial application mainly is the expensive of the obstacle of technology itself or base/pulp preparation.Thereby the class methods of control cast in recent years obtain to develop rapidly.Northeastern University has proposed near liquidus casting (Chinese patent open CN1305876A), and melt temperature is controlled at more than the liquidus temperature in 15 ℃ of scopes, carries out vertical or horizontal semicontinuous casting after insulation for some time; Cooling chute (cooling slope) method that European patent EP 0 745 394 A1 propose, to be poured on the cooling chute a little more than the molten metal of liquidus temperature, and the parameters such as length, angle, cooling intensity, casting condition by the control skewed slot wait process of setting are implemented control; The liquid mixing methods that European patent EP 0 745 694 A1 propose etc. are mixed the molten alloy of two or three different hypoeutectic compositions, and the new alloy composition that obtains contains a large amount of nucleus near liquidus line, and further processing can obtain semi solid slurry subsequently.Above-mentioned these methods do not need complicated whipping appts because process is simple, thereby the cost of preparation semisolid blank/slurry reduces greatly, thereby very have development potentiality.But these methods all need be implemented accurately control to the process of setting of metal near liquidus line, otherwise are difficult to obtain ideal semisolid blank/slurry.
In order to reduce the technique controlling difficulty of metal solidification process, be convenient to its industrial applications, some investigators combine traditional stirring class methods with liquidus line control teeming practice in recent years, have proposed some compound preparation technologies, and these technologies respectively have its unique distinction.U.S. Pat 2002/0096231 has proposed " new MIT technology ", in the above several years scope of liquidus line, extend into the agitator that has cooling effect and to carry out the short period of time in the melt and stir, take out agitator subsequently, alloy is still in semi solid zone, carry out the short period of time and slowly cool off or remain on adiabatic condition, then alloy is cooled to specify forming temperature; The open CN1330990A of Chinese patent carries out light current magnetic and stirs or mechanical stirring near liquidus line.Though above-mentioned compound preparation technology can combine the advantage of liquidus line casting and stirring means, but also be to use traditional electromagnetism or mechanical stirring when stirring, thereby mechanical stirring and the institute of induction stirring some shortcomings of inherent own are difficult to avoid fully, during as mechanical stirring, the stirring rod life-span is short, and metal is easy to oxidation, and the metal inside quality is low, slurry stirs uneven, and processing parameter is wayward etc.; During induction stirring, stirring efficiency is low, and energy consumption is big.
Summary of the invention
The purpose of this invention is to provide and a kind ofly combine, prepare the method for semi solid slurry/blank with ultrasonic technique with to the control of metal solidification process.This method can reduce the technique controlling difficulty of liquidus line castmethod on the one hand, on the other hand, can avoid the deficiency of traditional mechanical stirring and induction stirring itself, easy and traditional simultaneously die casting, the forming technique of extruding combine and directly carry out rheological molding, reduce the cost of semi-solid metal slurry/blank preparation greatly, shortened process.
Another object of the present invention provides a kind of supersound process control and solidifies the employed device of the method for preparing semi-solid metal slurry/blank.
For achieving the above object, the present invention takes following technical scheme:
The method for preparing semi-solid metal slurry/blank is solidified in a kind of supersound process control, and this method comprises the steps:
(1), the molten metal bath that will handle through inoculating and refining, temperature is controlled in the metal liquidus temperature 50K, alloy melt is controlled at more than the liquidus temperature in 0～15K scope after importing in the crucible;
(2), at (T
L-5K)～(T
L+ 15K) in the temperature range, alloy melt is carried out supersound process 0.1～5min;
(3), rapidly the alloy melt after the supersound process is cooled to the semi-solid-state shaping temperature T
SSBelow in 0～10K scope, use heating unit that slurry temperature is adjusted in semi-solid-state shaping temperature (T
SS-5K)～(T
SS+ 5K) in the scope, inject mold cavities shaped rapidly behind slurry insulation 0.1～5min;
Wherein, T
LBe liquidus temperature; T
SSBe the semi-solid-state shaping temperature.
The method for preparing semi-solid metal slurry/blank is solidified in supersound process control of the present invention, and wherein, ultrasonic processing apparatus is directly to import alloy melt from crucible top to carry out supersound process; Perhaps ultrasonic processing apparatus is arranged on crucible bottom or side, carries out non-contact ultrasonic and handle, used frequency of ultrasonic scope is 18KHz～100KHz, and the sound intensity is 0.5～5W/cm
2
The employed equipment of the method for preparing semi-solid metal slurry/blank is solidified in supersound process control of the present invention, this equipment includes crucible, ultrasonic processing apparatus, barrel, ejaculation device, die cavity, described crucible outer wall is provided with well heater and water cooler, its outer insulating heat insulating material that is surrounded by.Crucible used in the present invention, ultrasonic processing apparatus, barrel, ejaculation device, die cavity are conventional equipment, the invention is characterized in, aforesaid device is combined, and carry out supersound process control and solidify the method for preparing semi-solid metal slurry/blank.
The employed equipment of the method for preparing semi-solid metal slurry/blank is solidified in supersound process control of the present invention, and wherein, described ultrasonic processing apparatus directly imports in the crucible from crucible top.
The employed equipment of the method for preparing semi-solid metal slurry/blank is solidified in supersound process control of the present invention, and wherein, described ultrasonic processing apparatus places outside crucible bottom or the side.
Advantage of the present invention is:
The present invention can be used for semi solid slurry (base) the material preparation of multiple alloys such as aluminium, magnesium, nickel, tin, copper, iron, be particularly suitable for semi solid slurry (base) the material preparation of magnesium alloy, combine with traditional forming techniques such as die casting, extruding easily simultaneously, realize semi-solid rheological molding, reduce the cost of whole rheological molding process greatly.
Description of drawings
Fig. 1 is for implementing one of process flow diagram used in the present invention (ultrasonic processing apparatus directly imports the mode in the crucible from crucible top).
Fig. 2 is for implementing two (ultrasonic processing apparatus places the outer mode of crucible bottom) of process flow diagram used in the present invention.
Embodiment
Supersound process control of the present invention is solidified the employed equipment of the method for preparing semi-solid metal slurry/blank as shown in Figure 1 and Figure 2, equipment used in the present invention includes crucible 3, ultrasonic processing apparatus, barrel 10, penetrates device 9, die cavity 11, described crucible outer wall is provided with well heater 1 and water cooler 2, its outer insulating heat insulating material 5 that is surrounded by.Wherein, ultrasonic processing apparatus mainly is made up of ultrasonic transducer 6 and horn 7.As shown in Figure 1, ultrasonic processing apparatus is directly to import in the crucible from crucible top; As shown in Figure 2, ultrasonic processing apparatus places outside the crucible bottom.
As shown in Figure 1 and Figure 2, wherein, a among Fig. 1, Fig. 2, b, c, d, e, f, g are respectively following a, b, c, d, e, f, g step, and Fig. 1 is identical with Fig. 2 step, and just, the position on the ultrasonic processing apparatus place crucible in the equipment is different.Technical process of the present invention can be described below:
A: will be through the molten metal bath of inoculating and refining processing, temperature is controlled in the metal liquidus temperature 50K, imports in the crucible 3, and the temperature of crucible 3 is controlled at molten metal phase line temperature T by the well heater in the insulating heat insulating material 51
LWith solidus temperature T
SBetween, by well heater 1 and water cooler 2 with the temperature regulation of alloy melt 4 at liquidus temperature T
LMore than in 0～15K scope;
B: alloy melt 4 is carried out supersound process, and the mode of processing can be directly to import the molten metal (as shown in Figure 1) from crucible top, also ultrasonic processing apparatus can be placed crucible bottom or side (as shown in Figure 2), carries out non-contact ultrasonic and handles.The temperature range of supersound process is (T
L-5K)～(T
L+ 15K), the supersound process time is 0.1～5min, and used frequency of ultrasonic scope is 18KHz～100KHz, and the sound intensity is 0.5～5W/cm
2；
C: stop supersound process, rapidly the temperature of melt 4 in the crucible 3 is cooled to the semi-solid-state shaping temperature T by water cooler 2
SSBelow in 0～10K scope.Stop cooling, use well heater 1 that slurry temperature is adjusted in (T
SS-5K)～(T
SS+ 5K) in the scope, and be incubated 0.1～5min.
D: import the slurry 8 that obtains in the hollow barrel 10 rapidly;
E: for guaranteeing the accurate control of temperature, can carry out temperature control, its temperature is controlled at (T to barrel 10
SS-5K)～(T
SS+ 5K) in the scope;
F: penetrate device 9 and rapidly semi solid slurry is injected die cavity 11 shapings.
Ultrasonic processing apparatus used in the present invention mainly is made up of ultrasonic transducer 6 and horn 7, in order to prevent the damage of high temperature to ultrasonic transducer, can install cooling element additional it is protected.
Method that the present invention is given and technology are fit to the preparation and the rheological molding of aluminium alloy, magnesium alloy, nickelalloy, tin alloy, copper alloy and iron alloy semi solid slurry/blank, are particularly suitable for the preparation and the shaping of magnesium alloy semi solid state slurry/blank.
Embodiment
The liquidus temperature T of 356 aluminium alloys
L=615.6 ℃, solidus temperature T
S=567.5 ℃, alloy is melted in resistance furnace, and in the time of 720 ℃, use the hexachloroethane refining, leave standstill skimming behind 15～20min, use the processing of go bad of Al-Sr alloy, the use temperature regulating device is controlled at temperature in 650～660 ℃ of scopes,
Metal melt is imported in the crucible 3, and the temperature of crucible 3 is controlled at 600 ℃ by the well heater in the insulating heat insulating material 51, by well heater 1 and water cooler 2 with the temperature regulation of alloy melt 4 at liquidus temperature T
LMore than, in 615.6～630 ℃ of scopes.
Ultrasonic processing apparatus directly imports the alloy melt 4 from crucible 3 tops, in 615～620 ℃ of scopes it is carried out supersound process 3min, and used frequency of ultrasonic scope is 20KHz, and the sound intensity is 2W/cm
2, stop supersound process, rapidly the temperature of melt 4 in the crucible 3 is cooled to 590～600 ℃ of (A356 alloy f by water cooler 2
s=30% o'clock alloy melt temperature is about 600 ℃) in the scope.Stop cooling, use well heater 1 that slurry temperature is adjusted in 595～605 ℃ of scopes, and insulation 2min.In die casting machine injection barrel 10 in rapid importing of slurry that obtains, injection rod 9 rapid slurries are pressed into mold cavities shaped.
Claims (5)
1, the method for preparing semi-solid metal slurry/blank is solidified in a kind of supersound process control, and it is characterized in that: this method comprises the steps:
(1), the molten metal bath that will handle through inoculating and refining, temperature is controlled in the metal liquidus temperature 50K, alloy melt is controlled at more than the liquidus temperature in 0～15K scope after importing in the crucible;
(2), at (T
L-5K)～(T
L+ 15K) in the temperature range, alloy melt is carried out supersound process 0.1～5min;
(3), rapidly the alloy melt after the supersound process is cooled to the semi-solid-state shaping temperature T
SSBelow in 0～10K scope, use heating unit that slurry temperature is adjusted in semi-solid-state shaping temperature (T
SS-5K)～(T
SS+ 5K) in the scope, inject mold cavities shaped rapidly behind slurry insulation 0.1～5min; Wherein, T
LBe liquidus temperature; T
SSBe the semi-solid-state shaping temperature.
2, the method for preparing semi-solid metal slurry/blank is solidified in supersound process control according to claim 1, and it is characterized in that: ultrasonic processing apparatus is directly to import alloy melt from crucible top to carry out supersound process; Perhaps ultrasonic processing apparatus is arranged on crucible bottom or side, carries out non-contact ultrasonic and handle, used frequency of ultrasonic scope is 18KHz～100KHz, and the sound intensity is 0.5～5W/cm
2
3, the employed device of the method for preparing semi-solid metal slurry/blank is solidified in the described supersound process control of a kind of claim 1, it is characterized in that: this equipment includes crucible, ultrasonic processing apparatus, barrel, ejaculation device, die cavity, described crucible outer wall is provided with well heater and water cooler, its outer insulating heat insulating material that is surrounded by.
4, device according to claim 3 is characterized in that: described ultrasonic processing apparatus directly imports in the crucible from crucible top.
5, device according to claim 3 is characterized in that: described ultrasonic processing apparatus places outside crucible bottom or the side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101153773A CN1323782C (en) | 2003-11-20 | 2003-11-20 | Method of preparing semi solid state moltem metal/blank by ultrasonic treatment to control solidification and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101153773A CN1323782C (en) | 2003-11-20 | 2003-11-20 | Method of preparing semi solid state moltem metal/blank by ultrasonic treatment to control solidification and its device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1618549A true CN1618549A (en) | 2005-05-25 |
| CN1323782C CN1323782C (en) | 2007-07-04 |
Family
ID=34760422
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101153773A Expired - Lifetime CN1323782C (en) | 2003-11-20 | 2003-11-20 | Method of preparing semi solid state moltem metal/blank by ultrasonic treatment to control solidification and its device |
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|---|---|
| CN (1) | CN1323782C (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101775518A (en) * | 2010-04-02 | 2010-07-14 | 哈尔滨工业大学 | Device and method for preparing particle-reinforced gradient composite materials by using ultrasonic waves |
| CN101406925B (en) * | 2008-11-18 | 2011-08-24 | 浙江大学 | Method for device for forming metal micro-thixotropy in semi-solid state assistant by supersonic vibration |
| CN101186989B (en) * | 2007-12-10 | 2011-08-31 | 南昌大学 | Method for preparing AZ61 magnesium alloy half-solid blank using ultrasonic wave |
| CN102198500A (en) * | 2010-03-24 | 2011-09-28 | 加特可株式会社 | Casting device and casting method |
| CN102198499A (en) * | 2010-03-24 | 2011-09-28 | 加特可株式会社 | Casting device and casting method |
| CN102644011A (en) * | 2012-05-15 | 2012-08-22 | 中国船舶重工集团公司第十二研究所 | Aluminium alloy semi-solid preform body and preparation method thereof |
| CN102108450B (en) * | 2009-12-25 | 2012-08-29 | 清华大学 | Method for preparing magnesium-based composite material |
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| CN103909267A (en) * | 2014-03-26 | 2014-07-09 | 浙江大学 | Semisolid metal powder forming device and method based on ultrasonic vibration |
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| JP3555485B2 (en) * | 1999-03-04 | 2004-08-18 | トヨタ自動車株式会社 | Rheocasting method and apparatus |
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| CN1163328C (en) * | 2000-10-13 | 2004-08-25 | 东北大学 | Process for preparing semi-solid metallic grout |
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- 2003-11-20 CN CNB2003101153773A patent/CN1323782C/en not_active Expired - Lifetime
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| CN101406925B (en) * | 2008-11-18 | 2011-08-24 | 浙江大学 | Method for device for forming metal micro-thixotropy in semi-solid state assistant by supersonic vibration |
| CN102108450B (en) * | 2009-12-25 | 2012-08-29 | 清华大学 | Method for preparing magnesium-based composite material |
| CN102108455B (en) * | 2009-12-25 | 2013-11-06 | 清华大学 | Preparation method of aluminum-base composite material |
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| CN102776396B (en) * | 2012-05-29 | 2014-08-06 | 南昌大学 | Preparation method of in-situ Mg2Si particle enhanced Mg-Al-Mn-Zn composite material semi-solid slurry |
| CN103909267B (en) * | 2014-03-26 | 2015-11-04 | 浙江大学 | Based on semi-solid-state metal powder forming device and the manufacturing process of ultrasonic vibration |
| CN103909267A (en) * | 2014-03-26 | 2014-07-09 | 浙江大学 | Semisolid metal powder forming device and method based on ultrasonic vibration |
| CN104162555A (en) * | 2014-05-28 | 2014-11-26 | 哈尔滨工业大学（威海） | Semi-solid thixotropic-plastic compound forming method |
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| CN109454214A (en) * | 2018-11-20 | 2019-03-12 | 吴江市格瑞福金属制品有限公司 | A kind of method of ultrasonic wave die casting preparation high thermal conductivity baking tray |
| CN115255403A (en) * | 2022-08-05 | 2022-11-01 | 江苏百航超声科技有限公司 | Instant preparation facilities of mixed modified material |
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