CN201664754U - Device for preparing metal semi-solid slurry by alternating magnetic field strengthened inclined cooling - Google Patents
Device for preparing metal semi-solid slurry by alternating magnetic field strengthened inclined cooling Download PDFInfo
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- CN201664754U CN201664754U CN201020134180XU CN201020134180U CN201664754U CN 201664754 U CN201664754 U CN 201664754U CN 201020134180X U CN201020134180X U CN 201020134180XU CN 201020134180 U CN201020134180 U CN 201020134180U CN 201664754 U CN201664754 U CN 201664754U
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- magnetic field
- tipping tube
- alternating magnetic
- melt
- solid slurry
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- 238000001816 cooling Methods 0.000 title claims abstract description 17
- 239000002002 slurry Substances 0.000 title claims abstract description 17
- 239000002184 metal Substances 0.000 title claims abstract description 16
- 239000007787 solid Substances 0.000 title claims abstract description 16
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 5
- 238000002360 preparation method Methods 0.000 claims description 7
- 239000000155 melt Substances 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 14
- 238000013019 agitation Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000000956 alloy Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000003756 stirring Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 210000001787 dendrite Anatomy 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000010118 rheocasting Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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Abstract
The utility model relates to a device for preparing metal semi-solid slurry by alternating magnetic field strengthened inclined cooling, which comprises a holding furnace, a tipping tube, a heating device, a cooling device, a crystallizer or a collecting crucible and a thermocouple, wherein the holding furnace is connected with the tipping tube; the heating device and the cooling device are arranged outside the tipping tube; and the crystallizer or the collecting crucible is connected on the lower part of the tipping tube. The utility model is characterized in that electromagnetic induction coils which can form an alternating magnetic field are arranged around the tipping tube. When a metal melt flows through the tipping tube in the alternating magnetic field and sways left and right along the direction being vertical to the melt flowing direction under the electromagnetic force action of the alternating magnetic field, and simultaneously, due to the fact a vortex generated by the alternating magnetic field in the melt makes the inside of the melt sufficiently stirred, the distribution uniformity of a solvend concentration field and a temperature field is improved, and the selective growth degree of a primary phase is reduced.
Description
Technical field
The utility model relates to metal material semisolid (near clean) forming technique field, specifically a kind of device of alternating magnetic field intensifying, overflowing cooling preparation metal semi-solid slurry.
Background technology
Semi-solid-state metal process technology (Semi-Solid Metal forming is called for short SSM) is a kind of novel solidified structure control technology, can obtain the microstructure of semisolid of tiny equally distributed sphere/subsphaeroidal crystal grain.From this technology birth, Chinese scholars has proposed the preparation method of many semi solid slurries.
Slope/inclined tube method is a kind of novel pulping process that rises from Japan in the recent period, this technology is that alloy melt is flowed through one when cooling off the slope owing to the Quench and the forming core substrate effect of cooling off the slope promote forming core to grow up, produce strong stirring action in rolling that melt produces flowing of slope and the switching process, make that nucleus is free, thick dendrite or shaft-like brilliant broken, thereby reach crystal grain thinning, obtain comparatively desirable fibr tissue.The slope method has the advantage that flow process is short, operation is few and cost is low, has the potentiality of wide popularization and application.
With the slope method inclined tube method, inclined plane method and waveform method etc. are arranged similarly.In order to promote the formation of nucleus, strengthen the free of nucleus, obtains the equally distributed axle primary phase that waits, researchers are everlasting and add vibrating device on the basis of hang plate or use and rotate tipping tube etc.But because waiting, mechanical oscillation and machinery rotation need to increase a cover mechanical device, equipment design degree complexity, and Operating Complexity improves, and stability reduces.
The utility model content
The utility model aims to provide a kind of new forming core that can promote primary phase, can promote the device of the alternating magnetic field intensifying, overflowing cooling preparation metal semi-solid slurry that nucleus is free simultaneously again.
Electromagnetic agitation of the present utility model is strengthened the tipping tube overcurrent and is cooled off the device for preparing metal semi-solid slurry, be at tipping tube arranged around alternating magnetic field, and alternating magnetic field is provided by the alternating electric field by certain number of turn coil, when metal bath flows through the tipping tube that is in alternating magnetic field, electromagnetic force effect lower edge at alternating magnetic field swings perpendicular to the melt flows direction, the eddy current that produces owing to alternating magnetic field in the melt makes its inside fully stir simultaneously, solute concentration field and uniform distribution of temperature field raising, the selectivity of the primary phase degree of growing up reduces.The concrete technical scheme of the utility model device is: comprise holding furnace, tipping tube, heater, cooling device, crystallizer or collect crucible, thermocouple, holding furnace connects tipping tube, the tipping tube outside is heater and cooling device, crystallizer or collection crucible are connected the bottom of tipping tube, it is characterized in that forming alternating magnetic field at tipping tube arranged around electromagnetic induction coil.
In device of the present utility model, electromagnetic parameter control is convenient, flexible, magnetic field can be in inclined tube effective stirring molten metal, the convection current of reinforced metal liquid inside, make that the interior hot-fluid transmission of inclined tube is abundant, the molten metal temperature is even, guarantees that the each several part slurry tissues is even, suppresses inclined tube inwall place and dendrite occurs because of Quench.Because electromagnetic field makes crystal grain more tiny, more rounding to the strong agitation effect of slurry.And with respect to common electromagnetic stirring method, the method can effectively shorten the slurrying time, enhance productivity, and the overcurrent technology to slurry volume without limits, therefore can production major diameter blank.
Description of drawings
Fig. 1 is the electromagnetic agitation tipping tube device schematic diagram of preparation semi solid slurry of the present utility model.
Among the figure, 1-holding furnace, 2-tipping tube, 3-heater, 4-cooling device, 5-electromagnetic induction coil, 6-crystallizer (or collecting crucible), 7-thermocouple.
The specific embodiment
As shown in Figure 1, the electromagnetic agitation tipping tube device of preparation semi solid slurry of the present utility model comprises holding furnace 1, tipping tube 2, heater 3, cooling device 4, crystallizer or collects crucible 6, thermocouple 7 etc., forms alternating magnetic field at tipping tube arranged around electromagnetic induction coil 5.The angle of inclination of tipping tube is 3～65 °.
During work, be poured in the tipping tube 2 having 5～20 ℃ of alloy melts than low overheat in the holding furnace 1, the preheat temperature of tipping tube is 80～450 ℃, and its temperature is regulated by heater 3 and cooling device 4, measures by thermocouple 7.Tipping tube is furnished with electromagnetic induction coil 5 outward, and the overcurrent melt is carried out electromagnetic agitation (the inner induced-current that produces of melt forms the magnetic field of inducting, and the interaction in both magnetic fields makes melt inside produce strong agitation).The alloy melt tipping tube of flowing through under self gravitation and electromagnetic force acting in conjunction produces strong shearing, Quench, impel proeutectic mutually fast forming core grow up and the refinement that is broken, obtain high-quality metal semi-solid slurry.Slurry advances in the crystalline human device 6 blank that insulation, cooled and solidified become to have microstructure of semisolid, so that the follow-up thixotropic forming that carries out.Perhaps crystallizer 6 is changed into the collection crucible, alloy pulp in the collection crucible is carried out temperature be adjusted to the interval temperature of solid-liquid, to obtain even temperature field or fraction solid as far as possible, just can make a gift to someone in the forging die of penetrating chamber or forging machine of penetrating chamber, extrusion casting machine of die casting machine then, carry out rheocasting collecting semi-solid alloy slurry in the crucible.
Under the prerequisite that does not change formation system structures such as die casting machine, conticaster or extrusion casting machine, device of the present utility model can be installed in its feed end or crystallizer port, realizes short flow process semi-solid rheological molding.
Claims (2)
1. an alternating magnetic field intensifying, overflowing cools off the device for preparing metal semi-solid slurry, comprise holding furnace, tipping tube, heater, cooling device, crystallizer or collect crucible, thermocouple, holding furnace connects tipping tube, the tipping tube outside is heater and cooling device, crystallizer or collection crucible are connected the bottom of tipping tube, it is characterized in that forming in the tipping tube arranged around electromagnetic induction coil of alternating magnetic field.
2. the device of alternating magnetic field intensifying, overflowing cooling preparation metal semi-solid slurry according to claim 2, the angle of inclination that it is characterized in that tipping tube is 3～65 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020134180XU CN201664754U (en) | 2010-03-18 | 2010-03-18 | Device for preparing metal semi-solid slurry by alternating magnetic field strengthened inclined cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020134180XU CN201664754U (en) | 2010-03-18 | 2010-03-18 | Device for preparing metal semi-solid slurry by alternating magnetic field strengthened inclined cooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201664754U true CN201664754U (en) | 2010-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020134180XU Expired - Fee Related CN201664754U (en) | 2010-03-18 | 2010-03-18 | Device for preparing metal semi-solid slurry by alternating magnetic field strengthened inclined cooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201664754U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750521A (en) * | 2016-03-02 | 2016-07-13 | 慈溪阿尔特新材料有限公司 | Semi-solid rheologic die-casting method capable of refining primary silicon of high-silicon aluminum alloy and device thereof |
| CN109454216A (en) * | 2019-01-02 | 2019-03-12 | 宁波生久柜锁有限公司 | A kind of molten metal conveying device of semi-solid-state metal die casting equipment |
-
2010
- 2010-03-18 CN CN201020134180XU patent/CN201664754U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750521A (en) * | 2016-03-02 | 2016-07-13 | 慈溪阿尔特新材料有限公司 | Semi-solid rheologic die-casting method capable of refining primary silicon of high-silicon aluminum alloy and device thereof |
| CN105750521B (en) * | 2016-03-02 | 2018-01-30 | 慈溪阿尔特新材料有限公司 | A kind of semi-solid rheological pressure casting method and its device that can refine silumin primary silicon |
| CN109454216A (en) * | 2019-01-02 | 2019-03-12 | 宁波生久柜锁有限公司 | A kind of molten metal conveying device of semi-solid-state metal die casting equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20140318 |