CN105772654A - Stirring and mixing method for solid-liquid metal - Google Patents
Stirring and mixing method for solid-liquid metal Download PDFInfo
- Publication number
- CN105772654A CN105772654A CN201610347713.4A CN201610347713A CN105772654A CN 105772654 A CN105772654 A CN 105772654A CN 201610347713 A CN201610347713 A CN 201610347713A CN 105772654 A CN105772654 A CN 105772654A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000003756 stirring Methods 0.000 title claims abstract description 27
- 238000002156 mixing Methods 0.000 title claims abstract description 22
- 229910001338 liquidmetal Inorganic materials 0.000 title abstract description 4
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 42
- 239000000956 alloy Substances 0.000 claims abstract description 42
- 239000007787 solid Substances 0.000 claims abstract description 35
- 229910052751 metal Inorganic materials 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 33
- 239000002002 slurry Substances 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000007654 immersion Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 230000009974 thixotropic effect Effects 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 6
- 238000007670 refining Methods 0.000 abstract 2
- 238000003723 Smelting Methods 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000004537 pulping Methods 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 210000001787 dendrite Anatomy 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 229910001051 Magnalium Inorganic materials 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 238000010099 solid forming Methods 0.000 description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/007—Semi-solid pressure die casting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a stirring and mixing method for solid-liquid metal. The method comprises the steps of 1, preparing solid alloy bars, wherein alloy ingots are molten, the superheat degree of the alloy ingots is controlled to range from 70 DEG C to 100 DEG C, the molten metal undergoes refining and slagging-off and then is left to stand, the superheat degree of the molten metal is controlled to range from 60 DEG C to 80 DEG C, the molten metal is poured into metal dies for being cooled and solidified, and finally the cylindrical or square alloy bars with a certain length are obtained; 2, controlling the temperature of the molten metal, wherein the superheat degree of the molten metal is controlled to range from 10 DEG C to 70 DEG C in the smelting process, the molten metal undergoes refining and slagging-off and then is left to stand, and the superheat degree of the molten metal is controlled to range from 10 DEG C to 50 DEG C; 3, preparing semi-solid slurry, wherein the alloy bars obtained in the step 1 are fixed to a rotary chuck of a stirring and mixing device, a screw motor and a chuck rotating motor are started, the screw motor drives the rotary chuck to descend, and the alloy bars in rotation are immersed into the molten metal; and 4, carrying out semi-solid formation or preparing semi-solid blanks.
Description
Technical field
The present invention relates to a kind of mushy stage metal stirring mixing method.
Background technology
At present, semi-solid state forming technique is the novel forming technique of one that 1970 ' s occur, it uses containing about 50%, and the solid-liquid hybrid metal slurry of solid phase tiny, spherical carries out pressure forming.More full liquid metal, semi-solid-state metal solidification shrinkage is little, and owing to eliminating arborescent structure, can be greatly decreased and even eliminate shrinkage porosite；It addition, semi-solid-state metal can substantially reduce the micro-pore in part by its high apparent viscosity self Reynolds number of reduction to realize Stable Filling.Therefore, semisolid foundry goods can have the most higher mechanical property in theory.And, semisolid foundry goods, owing to decreasing pore, can carry out secondary hardening by heat treatment.
Traditional method prepared by semi solid slurry is by the metal in solidification is applied mechanical agitation or electromagnetic agitation to smash dendrite, it is thus achieved that the solidification crystal grain of n on-dendritic shape, to reducing defect, improves part performance.But, in order to smash the dendrite being suspended in metal liquid phase, it being necessarily required to bigger mixing speed and longer mixing time, required device structure is complicated, relatively costly.Additionally, impurity or gas are inevitably involved in metal bath by stirring, bring inclusion defect.Therefore, the semi-solid state forming technique of stirring class fails really to realize industrial applications all the time.In recent years, in order to improve production efficiency, simplify pulping device, the most successively propose some based on controlling grain nucleation and the simple pulping technique of its growth of suppression.The method that existing method mainly includes utilizing pipeline cast or being poured into a mould by inclined ramp.There is the problems such as crust that easily solidify in melt protecting difficulty, metal casting process in these methods.And, preparation large volume semi solid slurry is the realistic problem that semi-soild-state technology industrial applications faces.Above-mentioned pipeline-like and assistant class pulping process is also unfavorable for that the uniform of melt cools down, and therefore the structure stability of large scale slurry is difficult to control to.
Summary of the invention
The invention solves the problems that the problem that above-mentioned prior art exists, a kind of mushy stage metal stirring mixing method and device are provided, tradition semi solid slurry technology of preparing rely on stirring to smash generation tree dendrite and crystal grain thinning, alloy property improves little, semi solid slurry prepared by this device forms mass crystallization core with crystal grain thinning by the chilling action that melt is produced by many alloy bars, homogenization tissue, overcomes the thick dendrite occurred in strip casting process, and alloy structure is to improving.
The present invention solve its technical problem use technical scheme: this mushy stage metal mixing stirring device, including firm banking, the crucible of heating function it is provided with in the forward part of firm banking, the rear end of firm banking is fixed with the guide rail of vertical installation, sliding seat is installed on guide rail, the screw mandrel and lead screw motor driving sliding seat to slide up and down is installed at the top of guide rail, crossbeam it is fixed with on sliding seat, bar-shaped trough is had on crossbeam, the chuck electric rotating machine being positioned at directly over crucible is installed in bar-shaped trough, the output shaft of chuck electric rotating machine down and is fixed with rotary chuck, the bottom surface of rotary chuck is provided with one group of spaced alloy bar.
Heating function includes alternating current power supply, resistance wire and refractory material.Resistance wire embeds refractory material and is coated on around crucible, and resistance wire is connected with alternating current power supply by wire.Elevating mechanism includes guide rail, sliding seat, screw mandrel and lead screw motor, and crossbeam is vertically connected on sliding seat by two row's guide rails, is rotated by driven by motor screw mandrel thus drives crossbeam can move up and down on column along guide rail, and movement velocity is regulated by motor.Rotary chuck has clamping, the disk of quick change solid alloy structure, and rotary chuck is connected by shaft coupling with motor.There is a thermocouple inside of crucible, and thermocouple can stretch in aluminium alloy and monitor in real time and by recording device records temperature parameter.
The most perfect, rotary chuck has a spaced through hole of circle, the clamp that pair of angled is installed is installed in through hole, the lower end of clamp is rotatably connected in through hole, and being connected between the upper end of clamp and through-hole wall has spring.Lower disk surface is equipped with having V-arrangement draw-in groove, being realized solid alloy rod by elastic device and step up and can the gripping mechanism of quick change.
This mushy stage metal stirring mixing method comprises the steps:
One, solid alloy rod is prepared: by alloy pig fusing and control in the range of 70-100 DEG C by its degree of superheat, then melt is carried out refine, skims, stand afterwards and melt overheat degree is controlled in the range of 60-80 DEG C, melt being poured into metal die cooled and solidified and obtains there is the cylindric of certain length or square alloy bar；
Two, control the temperature of metal bath: control in the range of 70-10 DEG C by the degree of superheat of melt during melting, then melt is carried out refine, skims, stand afterwards and melt overheat degree is controlled in the range of 10-50 DEG C；
Three, preparing semi solid slurry: be fixed on the rotary chuck of mixing stirring device by the alloy bar obtained in above-mentioned steps one, start lead screw motor and chuck electric rotating machine, the alloy bar that lead screw motor is rotated during chuck declines and will rotate immerses melt；Depending on volume size and the alloy bar degree of depth of melt temperature situation of change control immersion solution of prepared semi solid slurry, after solution temperature is down to semi solid zone, semi solid slurry can be obtained.
Four, prepared by semi-solid-state shaping or semi-solid blank: above-mentioned steps three gained semi solid slurry is poured into forming device mould and can realize semi-solid rheological molding or prepare thixotropic forming semi-solid blank.
In pulping process, the degree of superheat of liquid metal is together decided on by the diameter of alloy bar, immersion depth, immersion mixing time.Exist between three matching relationship, i.e. diameter the least or enter the degree of depth the lowest, immerse mixing time the shortest, melt overheat degree is the biggest.Otherwise the degree of superheat is the least.There is not the solidification crust problem when oxide slag inclusion in melt flows and cast.
The invention have the advantages that:
(1) when being material stirring with alloy bar, aluminium alloy being formed chilling action, aluminium alloy can be made to quickly form substantial amounts of crystallization nuclei, crystallization nuclei can rapidly diffuse into aluminium alloy various places inside, thus refines and homogenization alloy.
(2) impurity will not be introduced with alloy bar for stirring material, it is not necessary to the high speed such as traditional mechanical agitating device is stirred vigorously, energy-conservation while greatly reduce alloy and air effect and produce violent oxidation reaction.
(3) this device is only with two low-power machines, a set of simple rack and rotating disk, put into without big cost and can prepare high-quality semi solid slurry, being applicable to large batch of production model, high-quality semi solid slurry can be prepared without putting into huge fund by medium-sized and small enterprises, and cost performance highlights.
Accompanying drawing explanation
Fig. 1 is the front view of the present invention；
Fig. 2 is the three-dimensional structure diagram in front of the present invention；
Fig. 3 is the three-dimensional structure diagram at the back side of the present invention；
Fig. 4 is the structural representation of rotary chuck in the present invention.
Description of reference numerals: firm banking 1, crucible 2, guide rail 3, sliding seat 4, screw mandrel 5, lead screw motor 6, crossbeam 7, bar-shaped trough 7-1, chuck electric rotating machine 8, rotary chuck 9, alloy bar 10, through hole 11, clamp 12, spring 13.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
Referring to the drawings: mushy stage metal stirring mixing method in the present embodiment, comprise the steps:
One, solid alloy rod is prepared: by alloy pig fusing and control in the range of 70-100 DEG C by its degree of superheat, then melt is carried out refine, skims, stand afterwards and melt overheat degree is controlled in the range of 60-80 DEG C, melt being poured into metal die cooled and solidified and obtains there is the cylindric of certain length or square alloy bar；
Two, control the temperature of metal bath: control in the range of 70-10 DEG C by the degree of superheat of melt during melting, then melt is carried out refine, skims, stand afterwards and melt overheat degree is controlled in the range of 10-50 DEG C；
Three, preparing semi solid slurry: be fixed on the rotary chuck of mixing stirring device by the alloy bar obtained in above-mentioned steps one, start lead screw motor and chuck electric rotating machine, the alloy bar that lead screw motor is rotated during chuck declines and will rotate immerses melt；
Four, prepared by semi-solid-state shaping or semi-solid blank: above-mentioned steps three gained semi solid slurry is poured into forming device mould and can realize semi-solid rheological molding or prepare thixotropic forming semi-solid blank；
Mixing stirring device includes firm banking 1, the crucible 2 of heating function it is provided with in the forward part of firm banking 1, the rear end of firm banking 1 is fixed with the guide rail 3 of vertical installation, sliding seat 4 is installed on guide rail 3, the screw mandrel 5 and lead screw motor 6 driving sliding seat to slide up and down is installed at the top of guide rail 3, it is fixed with crossbeam 7 on described sliding seat 4, bar-shaped trough 7-1 is had on crossbeam 7, the chuck electric rotating machine 8 being positioned at directly over crucible 2 is installed in bar-shaped trough 7-1, the output shaft of chuck electric rotating machine 8 down and is fixed with rotary chuck 9, the bottom surface of rotary chuck 9 is provided with one group of spaced alloy bar 10.Having a spaced through hole of circle 11 on rotary chuck 9, be provided with the clamp 12 that pair of angled is installed in through hole 11, the lower end of clamp 12 is rotatably connected in through hole 11, and being connected between the upper end of clamp 12 with through hole 11 inwall has spring 13.
Protection gas all it is passed through to reduce oxidation and the slag inclusion of metal in melting, refine and pulping process.To alloy melt in pulping process, thermocouple is used to implement monitor in real time and adjust alloy bar velocity of rotation and immersion depth to melt temperature.
AZ61 (Al 6.0, Zn 0.538, Mn 0.218) magnalium is utilized to carry out the preparation of semi solid slurry.The liquidus temperature of AZ61 magnalium is 595 DEG C, and solidus temperature is 470 DEG C.Alloy is heated to 650 DEG C, is incubated 10～15 minutes.
Installing magnesium excellent on rotating disk, magnesium bar material is also AZ61.Then rotating disk is installed to motor output shaft by shaft coupling.When the alloy in crucible is heated to 650 DEG C, stops heating, make alloy start Slow cooling.And opening motor, magnesium rod enters crucible under the effect of hoistable platform and stirs.Stirring reaches between the solid-liquid phase line of magnesium alloy to temperature, i.e. 470 DEG C～595 DEG C, controls temperature and terminate stirring at about 540 DEG C in this EXPERIMENTAL EXAMPLE.
Stirring terminates i.e. to obtain the magnalium semi solid slurry of globular crystal, now can be cast as the foundry goods of function admirable directly by slurry cast to mould
Although the present invention is by being shown and described with reference to preferred embodiment, but, those skilled in the art are it is to be appreciated that in the range of claims, can the various change made in form and details.
Claims (4)
1. a mushy stage metal stirring mixing method, is characterized in that: method comprises the steps:
One, solid alloy rod is prepared: by alloy pig fusing and control in the range of 70-100 DEG C by its degree of superheat, then to molten
Body carries out refine, skims, and stands afterwards and controls, in the range of 60-80 DEG C, melt to be poured into metal die by melt overheat degree
Cooled and solidified obtains has the cylindric of certain length or square alloy bar；
Two, the temperature of metal bath is controlled: control in the range of 70-10 DEG C by the degree of superheat of melt during melting, then to melt
Carry out refine, skim, stand afterwards and melt overheat degree is controlled in the range of 10-50 DEG C；
Three, semi solid slurry is prepared: the alloy bar obtained in above-mentioned steps one is fixed on the rotary chuck of mixing stirring device
On, starting lead screw motor and chuck electric rotating machine, the alloy bar that lead screw motor is rotated during chuck declines and will rotate immerses
Melt；
Four, prepared by semi-solid-state shaping or semi-solid blank: above-mentioned steps three gained semi solid slurry is poured into forming device mould
Semi-solid rheological molding can be realized or prepare thixotropic forming semi-solid blank；
Mixing stirring device includes firm banking (1), and the forward part of firm banking (1) is provided with the crucible of heating function
(2), the rear end of firm banking (1) is fixed with the guide rail (3) of vertical installation, and guide rail (3) is provided with sliding seat (4),
The screw mandrel (5) and lead screw motor (6), described sliding seat (4) driving sliding seat to slide up and down is installed at the top of guide rail (3)
On be fixed with crossbeam (7), crossbeam (7) has bar-shaped trough (7-1), is provided with in bar-shaped trough (7-1) and is positioned at crucible (2)
The chuck electric rotating machine (8) of surface, the output shaft of chuck electric rotating machine (8) down and is fixed with rotary chuck (9), rotation
The bottom surface turning chuck (9) is provided with one group of spaced alloy bar (10).
Mushy stage metal stirring mixing method the most according to claim 1, is characterized in that: described rotary chuck (9)
On have the spaced through hole of a circle (11), be provided with in through hole (11) pair of angled install clamp (12), clamp
(12) lower end is rotatably connected in through hole (11), is connected and has between the upper end of clamp (12) with through hole (11) inwall
Spring (13).
Mushy stage metal stirring mixing method the most according to claim 1, is characterized in that: in melting, refine and slurrying
During be all passed through protection gas to reduce the oxidation of metal and slag inclusion.
Mushy stage metal stirring mixing method the most according to claim 1, is characterized in that: described to alloy melt system
During slurry, thermocouple is used to implement monitor in real time and adjust alloy bar velocity of rotation and immersion depth to melt temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610347713.4A CN105772654B (en) | 2016-05-23 | 2016-05-23 | Mushy stage metal stirring mixing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610347713.4A CN105772654B (en) | 2016-05-23 | 2016-05-23 | Mushy stage metal stirring mixing method |
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| CN105772654A true CN105772654A (en) | 2016-07-20 |
| CN105772654B CN105772654B (en) | 2018-11-06 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906958A (en) * | 2017-11-20 | 2018-04-13 | 新兴河北冶金资源有限公司 | A kind of metallurgy high-temperature smelting pot |
| CN108456784A (en) * | 2018-03-06 | 2018-08-28 | 浙江灿根智能科技有限公司 | A kind of smelting furnace copper water exclusion device |
| CN109014143A (en) * | 2018-07-13 | 2018-12-18 | 安徽思源三轻智能制造有限公司 | A kind of continuous rapid molding device of liquid forging |
| CN110434300A (en) * | 2019-08-30 | 2019-11-12 | 尚智强 | Semi-solid slurrying equipment |
| CN111351588A (en) * | 2020-05-12 | 2020-06-30 | 安徽圣尔沃智能装备有限公司 | Semi-solid temperature measurement pulping structure and temperature measurement method thereof |
| CN111702137A (en) * | 2020-06-27 | 2020-09-25 | 合肥学院 | Thixotropic extrusion device for semi-solid castings and application method |
| CN113134579A (en) * | 2021-04-01 | 2021-07-20 | 江苏海宇机械有限公司 | Device and method for preparing metal semi-solid material |
| CN113198983A (en) * | 2021-04-23 | 2021-08-03 | 上海应用技术大学 | Method and device for preparing medium cooling planetary stirring semi-solid slurry |
| CN113233524A (en) * | 2021-04-26 | 2021-08-10 | 乌海市中科生态环境技术中心 | Movable sewage purification equipment |
| CN113460847A (en) * | 2021-06-21 | 2021-10-01 | 中国原子能科学研究院 | Hoisting assembly for hoisting stirring mechanism, stirring device and hoisting method thereof |
| CN113695533A (en) * | 2021-08-31 | 2021-11-26 | 重庆顺多利机车有限责任公司 | Semi-solid slurrying machine for die forging |
| CN113976851A (en) * | 2021-10-29 | 2022-01-28 | 金雅豪精密金属科技（深圳）股份有限公司 | Semi-solid pulping machine and semi-solid pulping die-casting system |
| CN114682743A (en) * | 2021-12-29 | 2022-07-01 | 北京科技大学 | Electromagnetic stirring device for metal melt |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906958A (en) * | 2017-11-20 | 2018-04-13 | 新兴河北冶金资源有限公司 | A kind of metallurgy high-temperature smelting pot |
| CN107906958B (en) * | 2017-11-20 | 2019-09-10 | 新兴河北冶金资源有限公司 | A kind of metallurgy high-temperature smelting pot |
| CN108456784A (en) * | 2018-03-06 | 2018-08-28 | 浙江灿根智能科技有限公司 | A kind of smelting furnace copper water exclusion device |
| CN108456784B (en) * | 2018-03-06 | 2020-04-24 | 浙江灿根智能科技有限公司 | Smelting pot copper water edulcoration device |
| CN109014143A (en) * | 2018-07-13 | 2018-12-18 | 安徽思源三轻智能制造有限公司 | A kind of continuous rapid molding device of liquid forging |
| CN110434300A (en) * | 2019-08-30 | 2019-11-12 | 尚智强 | Semi-solid slurrying equipment |
| CN111351588A (en) * | 2020-05-12 | 2020-06-30 | 安徽圣尔沃智能装备有限公司 | Semi-solid temperature measurement pulping structure and temperature measurement method thereof |
| CN111702137B (en) * | 2020-06-27 | 2021-06-22 | 合肥学院 | Thixotropic extrusion device for semi-solid castings and application method |
| CN111702137A (en) * | 2020-06-27 | 2020-09-25 | 合肥学院 | Thixotropic extrusion device for semi-solid castings and application method |
| CN113134579A (en) * | 2021-04-01 | 2021-07-20 | 江苏海宇机械有限公司 | Device and method for preparing metal semi-solid material |
| CN113198983A (en) * | 2021-04-23 | 2021-08-03 | 上海应用技术大学 | Method and device for preparing medium cooling planetary stirring semi-solid slurry |
| CN113233524A (en) * | 2021-04-26 | 2021-08-10 | 乌海市中科生态环境技术中心 | Movable sewage purification equipment |
| CN113460847A (en) * | 2021-06-21 | 2021-10-01 | 中国原子能科学研究院 | Hoisting assembly for hoisting stirring mechanism, stirring device and hoisting method thereof |
| CN113460847B (en) * | 2021-06-21 | 2023-03-10 | 中国原子能科学研究院 | Hoisting assembly for hoisting stirring mechanism, stirring device and hoisting method thereof |
| CN113695533A (en) * | 2021-08-31 | 2021-11-26 | 重庆顺多利机车有限责任公司 | Semi-solid slurrying machine for die forging |
| CN113695533B (en) * | 2021-08-31 | 2024-08-09 | 重庆顺多利机车有限责任公司 | Semi-solid pulping machine for die forging |
| CN113976851A (en) * | 2021-10-29 | 2022-01-28 | 金雅豪精密金属科技（深圳）股份有限公司 | Semi-solid pulping machine and semi-solid pulping die-casting system |
| CN114682743A (en) * | 2021-12-29 | 2022-07-01 | 北京科技大学 | Electromagnetic stirring device for metal melt |
| CN114682743B (en) * | 2021-12-29 | 2023-06-13 | 北京科技大学 | Electromagnetic stirring device for metal melt |
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| CN105772654B (en) | 2018-11-06 |
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