CN101181739A - Method for composite electromagnetic continuous-casting high-oriented ultra-fine grained materials - Google Patents
Method for composite electromagnetic continuous-casting high-oriented ultra-fine grained materials Download PDFInfo
- Publication number
- CN101181739A CN101181739A CNA2007100474826A CN200710047482A CN101181739A CN 101181739 A CN101181739 A CN 101181739A CN A2007100474826 A CNA2007100474826 A CN A2007100474826A CN 200710047482 A CN200710047482 A CN 200710047482A CN 101181739 A CN101181739 A CN 101181739A
- Authority
- CN
- China
- Prior art keywords
- crystallizer
- electrode
- metal
- cooling
- metal material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention relates to a method for continuously producing high-orientated fine-grained metallic material in complex electromagnetic field, pertaining to the technical field of metal casting. The method of the invention is outlined as follows: a pair of self-cooling electrodes are inserted into the upper part of metal melts in a crystallizer, and is electrified with AC power, and a DC induction coil is arranged outside the crystallizer and electrified with DC current to generate a DC magnetic field. The self-cooling electrodes induce the melts near the electrodes to form a crystal core, and combine with electromagnetic oscillation to eject the crystal core into the metal melts, then a core body for the later metal solidification. The crystal core is magnetic orientated during the process of sedimentation, and eventually metal material with highly-orientated fine crystal structure is obtained. The AC current frequency range adopted by the invention is 10 to 10000Hz, AC current intensity range is 0 to 10000A, and magnetic field intensity generated by the DC current is 0 to 10 T and can be continuously tuned. The high-orientated fine-grained metallic material prepared by the invention has uniform casting organizations and can substantially improve the performance and quality of the metal material.
Description
Technical field
The present invention relates to a kind of under the composite electromagnetic field action method and the device thereof of continuous-casting high-oriented fine crystalline metal material, belong to the metal casting technique technical field.
Background technology
The grain size of material has significant effects to the performance of material, and the intensity of metal material, hardness, plasticity and toughness all improve along with grain refinement, and therefore, the grain size of control material has important and practical meanings.Grain refinement is broadly divided into thermodynamics control mode, Chemical Control mode and dynamics Controlling mode according to the mode of action difference to melt.
Thermodynamics method mainly is that cold body cooling is controlled to obtain big degree of supercooling to melt.According to classical crystallography principle, the nucleation rate during metallic crystal is relevant with degree of supercooling, and degree of supercooling is big more, and the forming core number will rise manyly in the melt of certain volume under other identical curing condition, and crystal grain is then thin more.Big degree of supercooling can obtain by improving the liquid metal cooling velocity, can adopt metal type dies, reduction mold temperature, reduction pouring temperature and speed to realize in the actual production.
In molten alloy, add inovulant and be one of method of the most ancient crystal grain thinning.Rotten processing is to add nucleating agent (being called alterant or inovulant again) before liquation solidifies, and promotes to form a large amount of non-homogeneous nucleus and comes crystal grain thinning.
Compare with the method for preceding two kinds of crystal grain thinnings, utilize dynamics (outfield) effect carefully to have the advantage of crystal grain to be easy realization and segregation is less, do not introduce outer added elements, because the outer effect that existing solid phase is easy to be applied on the coagulation system is broken, institute so that crystal grain propagation than easier the accomplishing of speed of increase nucleation.The method of outfield commonly used crystal grain thinning comprises mechanical agitation, vibration, swing; Ultrasonic wave; Alternating electric field, magnetic field and electromagnetic field compound action are finished.Usually these used outer field actions all can make dendrite fragmentation and free, but have only when temperature during near fusing point its broken dendrite can extensively distribute away from solid-liquid phase interface and in liquid, could obtain best grain refining effect this moment.
In a word, introducing the outfield in metal solidification process forces melt to form enough strong melt convection, not only help the transformation (as the transformation of column crystal) of solidified structure form and the refinement of grain structure to equiax crystal, also help the homogenising of overheated lost and temperature, these phenomenons are known by people.But above-mentioned outfield forces the method for bath movement also imperfect, also there are many problems, melt during for example the method for mechanical oscillation requires oscillator and solidifies is in contact with one another and oscillation pressure could be passed to metal bath, so just easily the frozen metal is polluted; And oscillation intensity mainly concentrates near the vibration source.The defective of sonic oscillation is that sound wave dissipates seriously in high-temperature fusant, refinement regional limited.Pulse current (magnetic field) is to produce thermal agitation at short notice, and the excessive melt that causes easily of electric current splashes, and electric current is too little, can make crystal grain remelting in high-temperature fusant of new formation, the reduction thinning effect.
For this reason, C.Vives etc. has invented a kind of method---electromagnetic viscosimeter of new grain refinement in the nineties in 20th century, its principle is in solidification of Al, apply a magnetostatic field B and a vertical with it alternating current simultaneously, they interact at the inner alternating electromagnetic force F of generation of melt, force melt to vibrate, homogeneous temperature field, broken crystal grain, thereby make crystal grain propagation refinement and remove gas and the raising mold-filling capacity, and this vibratory equipment does not contact with melt, substantially pollution-free, the even distribution of oscillation intensity in melt, thereby can obtain the tissue of uniformity, still, the bigger sample of incompatibility owing to the kelvin effect of alternating current, the method in the big electric current+little magnetic field of Cai Yonging simultaneously, the joule heating effect of electric current are also relatively more serious, so also have tangible deficiency for this method of industrial publicity.
Thin crystalline substance is a focus of material preparation technology, and thin brilliant result forms polycrystalline material, often has isotropism.In actual application, people also usually need anisotropic material, in order to obtain anisotropic material, thereby people adopt unidirectional solidification to obtain to have height-oriented columnar structure usually, this is greatly improved the vertical mechanical property of material, horizontal mechanical property is person of modern times's meaning not but, people obtain monocrystal material with regard to invention single crystal casting technology for this reason, thereby improve material respectively to performance, but single crystal technology can not be utilized all alloy systems, it is very high to every specification requirement simultaneously, the cost costliness.Therefore invent a kind of technology of preparing with anisotropy material of the thin crystalline substance of high orientation simple to operate, inexpensive, become highly significant.
Summary of the invention
At the deficiency that prior art exists, the purpose of this invention is to provide a kind of under resultant field the method and the device thereof of continuous-casting high-oriented fine crystalline metal material.
The method of a kind of composite electromagnetic continuous-casting high-oriented fine crystalline metal material of the present invention is characterized in that: pair of electrodes is inserted on the metal bath top in crystallizer, and feeds alternating current, heating and control melt temperature; Electrode adopts from cold electrode; Simultaneously in the induction coil of crystallizer arranged outside, feed direct current, produce D.C. magnetic field; Melt forms nucleus rapidly near utilizing self cooling electrode-induced electrode, impels nucleus to launch in the metal bath in conjunction with electromagnetic viscosimeter simultaneously, forms the core main body of metal freezing thereafter; Nucleus makes it that mangneto orientation takes place in the process of sedimentation simultaneously, finally gets the high metal material that is orientated fine grained texture; In the described resultant field, the employing ac frequency is 50Hz, and current strength is 100A; The magnetic field intensity that direct current produces is 10T.
Used isolated plant in the method for the continuous-casting high-oriented fine crystalline metal material of a kind of resultant field of the present invention, this setting is mainly a mould assembly, and this device includes: ac power supply apparatus, from cold electrode, crystallizer cooling jacket, water jacket water inlet pipe, water jacket outlet, direct current induction coil, secondary cooling water nozzle, strand, dummy bar and shaking device; It is characterized in that: metal bath top inserts and is provided with a pair of from cold electrode in crystallizer vessel, and electrode is connected with ac power supply apparatus; In the crystallizer vessel arranged outside crystallizer cooling jacket that is symmetrically arranged is arranged, cooling jacket is provided with water jacket water inlet pipe and water jacket outlet pipe; At the crystallizer vessel side, also promptly in the middle cavity of crystallizer cooling jacket, be provided with the direct current induction coil that can produce magnetostatic field isolator; In the bottom of crystallizer cooling jacket, face the strand place and also be provided with the secondary cooling water nozzle; Whole crystallizer platform support is arranged with a shaking device, to help crystal grain thinning; End at strand is connected with the dummy bar of traction action together.
Described structure from cold electrode is: there is vertical cooling medium admission passage electrode cylinder center, and the top side is provided with the cooling medium flow pass of level; The outer surface to sleeve pipe at electrode scribbles heat-resisting conductive coating; Described cooling medium is water, oil or gas.
Described material from cold electrode adopts metal, ceramic on metal or other conductive heat-resistant composites.
In the said apparatus, described ac power supply apparatus is controllable, and its frequency range is 10～10000Hz, and alternating current intensity is 0～10000A; The magnetic field intensity of the D.C. magnetic field that the direct current induction coil is produced is 0～10T.
Principle of the present invention and characteristics are as described below:
The operation principle of this device is to apply electromagnetic viscosimeter in the crystallizer of metal, alternating current intensity 0～10000A wherein, frequency is 10～10000Hz, D.C. magnetic field intensity 0～10T is adjustable continuously, powered electrode adopts from cold electrode, and the comprehensive utilization thermodynamic temperature rises and falls and brings out forming core; Electromagnetic viscosimeter medium-high frequency oscillating component is launched nascent nucleus, low frequency stirs the component homogeneous temperature field, prevents the nucleus remelting on the one hand, can bring out whole forming core on the other hand, stirs the broken crystal grain of the bath movement that brings out simultaneously, makes crystal grain propagation; Utilize magnetic field that crystal grain is orientated in infall process simultaneously.
The present invention combines thermodynamics and outfield crystal grain thinning method, utilization produces temperature fluctuation from cold electrode and brings out rapid forming core and part and apply electromagnetic viscosimeter and impel nucleus to launch in the metal bath, form crystallization nuclei, crystal grain is bred because of vibration and wave motion is broken in growth process, in the process of sedimentation, be orientated simultaneously, form the high fine grained texture that is orientated.The method has remedied the easy remelting of thermodynamics method forming core core, ultrasonic wave high temperature easily dissipates, the deficiency of the thin crystal method of the wayward grade of pulse current, adopting the part to apply electromagnetic viscosimeter simultaneously is convenient to produce continuously and the industrialization continuous casting, adopt little electric current+big magnetic field to avoid the side effect of electric current joule heating effect, adopt low-frequency oscillation to overcome the kelvin effect of high frequency electric on the one hand, mend again on the other hand and use the low frequency electromagnetic stirring action, thermal-arrest mechanics of the present invention in a word, ultrasonic wave, electromagnetic viscosimeter, crystal grain thinning method advantages such as electromagnetic agitation, bigger because of the magnetic field intensity that adopts simultaneously, magnetic aligning takes place in the crystal grain infall process, thereby can obtain the high fine grained texture that is orientated, remedy conventional unidirectional solidification orientation and organize thick deficiency, utilize the thin brilliant mechanical property that improves material; Utilize tissue orientating to obtain anisotropy of material.
Description of drawings
Fig. 1 is the simple structure schematic diagram of the high orientation of resultant field preparation of the present invention fine crystalline metal material device.
Fig. 2 forms for nucleus of the present invention and schematic diagram is launched in vibration.
Fig. 3 is a self cooling electrode structure schematic diagram used in apparatus of the present invention.(a) being the electrode outside drawing, (b) is the electrode profile
The specific embodiment
After now specific embodiments of the invention being described in.
The inventive method realizes by specially designed isolated plant.
Embodiment 1
As shown in Figure 1, device in the present embodiment is mainly a mould assembly, and this device includes: ac power supply apparatus 1, from cold electrode 2, crystallizer cooling jacket 3, water jacket water inlet pipe 4, water jacket outlet 5, direct current induction coil 6, secondary cooling water nozzle 7, strand 8, dummy bar 9 and shaking device 10; It is characterized in that: metal bath top inserts and is provided with a pair of from cold electrode 2 in crystallizer vessel, and electrode 2 is connected with ac power supply apparatus 1; In the crystallizer vessel arranged outside crystallizer cooling jacket 3 that is symmetrically arranged is arranged, cooling jacket 3 is provided with water jacket water inlet pipe 4 and water jacket outlet pipe 5; At the crystallizer vessel side, also promptly in the middle cavity of crystallizer cooling jacket 3, be provided with the direct current induction coil 6 that can produce magnetostatic field isolator; In the bottom of crystallizer cooling jacket 3, face strand 8 places and also be provided with secondary cooling water nozzle 7; Whole crystallizer platform support is arranged with a shaking device 10, to help crystal grain thinning; End at strand 8 is connected with the dummy bar 9 of traction action together.
Referring to Fig. 3, described structure from cold electrode 2 is: there is vertical cooling medium admission passage 11 electrode cylinder center, and the top side is provided with the cooling medium flow pass 12 of level; Outer surface at electrode sleeve pipe 14 scribbles heat-resisting conductive coating 13; Described cooling medium is a gas.
In the present embodiment, adopt the metal stainless steel as electrode material.
In the present embodiment, adopt the Al-4.5%Cu hypoeutectic alloy, after 800 ℃ of remeltings, pour into mould assembly, start power supply, apply resultant field through tundish as raw metal; The alternating current frequency is 50Hz, and alternating current intensity is 100A, and from the cooling medium employing air of cold electrode, the hauling speed of strand is 10mm/S.The average grain size of the final metal material that is obtained drops to 100 μ m by 2mm, and hand down magnetic field orientating, the degree of orientation of primary-Al increases to 2.6 by 1.0.
The principle and the PROCESS OVERVIEW thereof of present embodiment are as follows:
In the casting process, casting metal (Al-4.5%Cu) enters in the crystallizer, when electrode inserts metal bath top, circuit is connected when contacting with molten metal, the melt of electrode is at mutually perpendicular alternating current and add and produce vibration under the effect of magnetostatic field, in electrode, feed simultaneously cooling medium, produce temperature fluctuation, bring out near the rapid forming core of the molten metal electrode, the new nucleus that forms will along with the electrode vibration by a large amount of continuous launch (referring to accompanying drawings 2) in the metal bath, melt vibration simultaneously is even temperature field, eliminate the degree of superheat, therefore the nucleus that launches in the metal bath can most of be preserved, and not by remelting, forms the crystallization nuclei of its after coagulation; The crystal grain that the melt that vibration is simultaneously brought out can broken grown causes crystal grain propagation, and crystal grain thinning; Magnetic aligning takes place in crystal grain in infall process simultaneously, and final formation has the high metal material that is orientated fine grained texture.
Claims (5)
1. the method for a composite electromagnetic continuous-casting high-oriented fine crystalline metal material is characterized in that: pair of electrodes is inserted on the metal bath top in crystallizer, and feeds alternating current, and heating is the control melt temperature also; Electrode adopts from cold electrode; Simultaneously in the induction coil of crystallizer arranged outside, feed direct current, produce D.C. magnetic field; Melt forms nucleus rapidly near utilizing self cooling electrode-induced electrode, impels nucleus to launch in the metal bath in conjunction with electromagnetic viscosimeter simultaneously, forms the core main body of metal freezing thereafter; Nucleus makes it that mangneto orientation takes place in the process of sedimentation simultaneously, finally gets the high metal material that is orientated fine grained texture; In the described resultant field, the employing ac frequency is 50Hz, and current strength is 100A; The magnetic field intensity that direct current produces is 10T.
2. used isolated plant in the method for the continuous-casting high-oriented fine crystalline metal material of resultant field, this setting is mainly a mould assembly, and this device includes: ac power supply apparatus (1), from cold electrode (2), crystallizer cooling jacket (3), water jacket water inlet pipe (4), water jacket outlet (5), direct current induction coil (6), secondary cooling water nozzle (7), strand (8), dummy bar (9) and shaking device (10); It is characterized in that: metal bath top inserts and is provided with a pair of from cold electrode (2) in crystallizer vessel, and electrode (2) is connected with ac power supply apparatus (1); In the crystallizer vessel arranged outside crystallizer cooling jacket (3) that is symmetrically arranged is arranged, cooling jacket (3) is provided with water jacket water inlet pipe (4) and water jacket outlet pipe (5); At the crystallizer vessel side, also promptly in the middle cavity of crystallizer cooling jacket (3), be provided with the direct current induction coil (6) that can produce magnetostatic field isolator; In the bottom of crystallizer cooling jacket (3), face strand (8) and locate also to be provided with secondary cooling water nozzle (7); Whole crystallizer platform support is arranged with a shaking device (10), to help crystal grain thinning; End at strand (8) is connected with the dummy bar of traction action (9) together.
3. used isolated plant in the method for the continuous-casting high-oriented fine crystalline metal material of a kind of resultant field as claimed in claim 2, it is characterized in that described structure from cold electrode (2) is: there is vertical cooling medium admission passage (11) electrode cylinder center, and the top side is provided with the cooling medium flow pass (12) of level; The outer surface to sleeve pipe (14) at electrode scribbles heat-resisting conductive coating (13); Described cooling medium is water, oil or gas.
4. used isolated plant in the method for the continuous-casting high-oriented fine crystalline metal material of a kind of resultant field as claimed in claim 3 is characterized in that described material from cold electrode (2) adopts metal, ceramic on metal or other conductive heat-resistant composites.
5. as used isolated plant in the method for claim 2 or the continuous-casting high-oriented fine crystalline metal material of 3 described a kind of resultant fields, it is characterized in that described ac power supply apparatus is controllable, its frequency range is 10～10000Hz, and alternating current intensity is 0～10000A; The magnetic field intensity of the D.C. magnetic field that direct current induction coil (6) is produced is 0～10T.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100474826A CN101181739A (en) | 2007-10-26 | 2007-10-26 | Method for composite electromagnetic continuous-casting high-oriented ultra-fine grained materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100474826A CN101181739A (en) | 2007-10-26 | 2007-10-26 | Method for composite electromagnetic continuous-casting high-oriented ultra-fine grained materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101181739A true CN101181739A (en) | 2008-05-21 |
Family
ID=39447242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100474826A Pending CN101181739A (en) | 2007-10-26 | 2007-10-26 | Method for composite electromagnetic continuous-casting high-oriented ultra-fine grained materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101181739A (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102000792A (en) * | 2010-11-11 | 2011-04-06 | 武汉钢铁(集团)公司 | Casting method for increasing grain size of continuous casting blank |
| CN101664801B (en) * | 2009-10-19 | 2011-10-05 | 东北大学 | Method and device for low overheat composite casting aluminum alloy under action of steady magnetic field |
| CN102601330A (en) * | 2011-12-20 | 2012-07-25 | 上海大学 | Method for refining crystalline grains by Alfven wave for upward continuous casting |
| CN102990027A (en) * | 2012-12-31 | 2013-03-27 | 上海大学 | Low-energy-consumption electromagnetic stirring method for continuous casting and metal continuous casting device |
| CN103243392A (en) * | 2013-05-09 | 2013-08-14 | 天津英利新能源有限公司 | Polycrystalline silicon ingot furnace and method for preparing polycrystalline silicon ingot with even and fine crystalline grains |
| CN103331435A (en) * | 2013-07-03 | 2013-10-02 | 上海大学 | Method for controlling metal solidification phase texture in combined mode through external rotating magnetic field and current and fusion casting device of method |
| CN103464706A (en) * | 2013-09-26 | 2013-12-25 | 上海大学 | Method and device for continuously casting and preparing high-oriented uniform fine-crystalline structure |
| CN103600045A (en) * | 2013-11-18 | 2014-02-26 | 上海大学 | Continuous steel casting process and device with function of electromagnetic excitation compound mechanical stirring |
| CN103962532A (en) * | 2013-12-09 | 2014-08-06 | 上海大学 | Method for refining metal solidification structure through complex pulse magnetic oscillation |
| CN104985163A (en) * | 2015-06-26 | 2015-10-21 | 王晓娜 | Device and method for improving product quality through interior ultra-cold nucleation of molten metal |
| CN105772671A (en) * | 2016-04-21 | 2016-07-20 | 苏州经贸职业技术学院 | Vibration and secondary crystallization combined die-casting method |
| CN105983670A (en) * | 2015-01-28 | 2016-10-05 | 宝山钢铁股份有限公司 | Method for improving internal quality of casting blank by composite intervention |
| CN106925730A (en) * | 2015-12-30 | 2017-07-07 | 北京有色金属研究总院 | The preparation facilities and method of a kind of big specification fine grain homogeneous aluminium alloy cast ingot |
| CN107030234A (en) * | 2017-04-17 | 2017-08-11 | 涿州新卓立航空精密科技有限公司 | The novel production process and purposes of forging type joint prosthesis and metallic article |
| CN108359829A (en) * | 2018-02-28 | 2018-08-03 | 江苏大学 | The method in magnetic field and the lower synthesis particle enhancing composite material of vibration synergistic effect |
| CN108436047A (en) * | 2018-04-23 | 2018-08-24 | 东北大学 | Resultant field prepares the device and method of big specification fine grain homogeneous aluminium alloy cast ingot |
| CN108480580A (en) * | 2018-04-23 | 2018-09-04 | 东北大学 | A kind of induction coil cooperates with DC to prepare the device of aluminium alloy cast ingot with permanent magnetic stirring |
| CN110586883A (en) * | 2019-09-18 | 2019-12-20 | 燕山大学 | Magnetic suspension type horizontal caterpillar continuous casting crystallizer |
-
2007
- 2007-10-26 CN CNA2007100474826A patent/CN101181739A/en active Pending
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101664801B (en) * | 2009-10-19 | 2011-10-05 | 东北大学 | Method and device for low overheat composite casting aluminum alloy under action of steady magnetic field |
| CN102000792B (en) * | 2010-11-11 | 2012-05-30 | 武汉钢铁(集团)公司 | Casting method for increasing grain size of continuous casting blank |
| CN102000792A (en) * | 2010-11-11 | 2011-04-06 | 武汉钢铁(集团)公司 | Casting method for increasing grain size of continuous casting blank |
| CN102601330A (en) * | 2011-12-20 | 2012-07-25 | 上海大学 | Method for refining crystalline grains by Alfven wave for upward continuous casting |
| CN102990027B (en) * | 2012-12-31 | 2015-07-01 | 上海大学 | Low-energy-consumption electromagnetic stirring method for continuous casting and metal continuous casting device |
| CN102990027A (en) * | 2012-12-31 | 2013-03-27 | 上海大学 | Low-energy-consumption electromagnetic stirring method for continuous casting and metal continuous casting device |
| CN103243392A (en) * | 2013-05-09 | 2013-08-14 | 天津英利新能源有限公司 | Polycrystalline silicon ingot furnace and method for preparing polycrystalline silicon ingot with even and fine crystalline grains |
| CN103331435A (en) * | 2013-07-03 | 2013-10-02 | 上海大学 | Method for controlling metal solidification phase texture in combined mode through external rotating magnetic field and current and fusion casting device of method |
| CN103464706A (en) * | 2013-09-26 | 2013-12-25 | 上海大学 | Method and device for continuously casting and preparing high-oriented uniform fine-crystalline structure |
| CN103600045A (en) * | 2013-11-18 | 2014-02-26 | 上海大学 | Continuous steel casting process and device with function of electromagnetic excitation compound mechanical stirring |
| CN103962532A (en) * | 2013-12-09 | 2014-08-06 | 上海大学 | Method for refining metal solidification structure through complex pulse magnetic oscillation |
| CN105983670A (en) * | 2015-01-28 | 2016-10-05 | 宝山钢铁股份有限公司 | Method for improving internal quality of casting blank by composite intervention |
| CN104985163A (en) * | 2015-06-26 | 2015-10-21 | 王晓娜 | Device and method for improving product quality through interior ultra-cold nucleation of molten metal |
| CN106925730B (en) * | 2015-12-30 | 2019-06-18 | 北京有色金属研究总院 | A kind of preparation facilities and method of big specification fine grain homogeneous aluminium alloy cast ingot |
| CN106925730A (en) * | 2015-12-30 | 2017-07-07 | 北京有色金属研究总院 | The preparation facilities and method of a kind of big specification fine grain homogeneous aluminium alloy cast ingot |
| CN105772671A (en) * | 2016-04-21 | 2016-07-20 | 苏州经贸职业技术学院 | Vibration and secondary crystallization combined die-casting method |
| CN107030234A (en) * | 2017-04-17 | 2017-08-11 | 涿州新卓立航空精密科技有限公司 | The novel production process and purposes of forging type joint prosthesis and metallic article |
| CN108359829A (en) * | 2018-02-28 | 2018-08-03 | 江苏大学 | The method in magnetic field and the lower synthesis particle enhancing composite material of vibration synergistic effect |
| CN108436047A (en) * | 2018-04-23 | 2018-08-24 | 东北大学 | Resultant field prepares the device and method of big specification fine grain homogeneous aluminium alloy cast ingot |
| CN108480580A (en) * | 2018-04-23 | 2018-09-04 | 东北大学 | A kind of induction coil cooperates with DC to prepare the device of aluminium alloy cast ingot with permanent magnetic stirring |
| CN108436047B (en) * | 2018-04-23 | 2019-09-10 | 东北大学 | Resultant field prepares the device and method of big specification fine grain homogeneous aluminium alloy cast ingot |
| CN108480580B (en) * | 2018-04-23 | 2019-11-05 | 东北大学 | A kind of induction coil cooperates with DC to prepare the device of aluminium alloy cast ingot with permanent magnetic stirring |
| CN110586883A (en) * | 2019-09-18 | 2019-12-20 | 燕山大学 | Magnetic suspension type horizontal caterpillar continuous casting crystallizer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101181739A (en) | Method for composite electromagnetic continuous-casting high-oriented ultra-fine grained materials | |
| CN100566890C (en) | A kind of preparation of semi-solid alloy slurry and the equipment of rheoforging | |
| CN103170577B (en) | Induction stirred, ultrasonically modified investment castings and apparatus for producing | |
| CN102179505B (en) | Method for refining metal solidification structure by using pulsed magnet field and pulse current with same frequency | |
| JP4154385B2 (en) | Solid-liquid coexistence state metal material manufacturing equipment | |
| CN101733380A (en) | Preparation method of fine crystalline metal material under action of low-voltage pulse magnetic field | |
| CN103464706A (en) | Method and device for continuously casting and preparing high-oriented uniform fine-crystalline structure | |
| KR100526096B1 (en) | Apparatus for producing a semi-solid metallic slurry | |
| CN102703986A (en) | Method for transforming columnar crystal-orienting isometric crystal of directional solidified alloy with strong static magnetic field induction | |
| Haghayeghi et al. | The effect of ultrasonic vibrations prior to high pressure die-casting of AA7075 | |
| CN101804446A (en) | Method and device for preparing semi-solid metal slurry by alternating magnetic field intensifying, overflowing and cooling | |
| CN102409188A (en) | Method for preparing semisolid alloy through centrifuging and chilling | |
| CN102051567A (en) | Precision casting method for refining aluminum alloy by using adjustable traveling wave magnetic field | |
| CN105195716A (en) | Method for conducting oriented solidification on CET refining metal solidification organization under longitudinal magnetic field | |
| CN103008623A (en) | Method for refining crystal grains by utilizing strong magnetic field and special metal solidification casting device thereof | |
| CN107214322A (en) | Magnetostatic field composite rotating magnetic field homogenizes the method and its device of large-sized casting ingot solidified structure | |
| BAI et al. | Annulus electromagnetic stirring for preparing semisolid A357 aluminum alloy slurry | |
| CN203679244U (en) | Metal semisolid slurry preparation device | |
| CN103962532B (en) | Method for refining metal solidification structure through complex pulse magnetic oscillation | |
| CN104439203A (en) | Magnetism-heat composite control complex precision or thin wall casting fine grain casting method and device | |
| CN1332773C (en) | Improved method of vibration exciting metal liquid shape crystal nucleus and its device | |
| CN103658608A (en) | Device and application for preparing metal semi-solid slurry | |
| JP2004114155A (en) | Method and apparatus for producing billet for forming metal in solid-liquid coexisting state, and method and apparatus for producing billet for semi-solid forming | |
| CN101130207A (en) | Equipment for preparing semi-solid metal slurry and rheologic molding | |
| CN100574939C (en) | A kind of preparation of semi-solid alloy slurry and shaped device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |