CN204430226U - A kind of electromagnetic viscosimeter device of resultant field - Google Patents

A kind of electromagnetic viscosimeter device of resultant field Download PDF

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Publication number
CN204430226U
CN204430226U CN201520028143.3U CN201520028143U CN204430226U CN 204430226 U CN204430226 U CN 204430226U CN 201520028143 U CN201520028143 U CN 201520028143U CN 204430226 U CN204430226 U CN 204430226U
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China
Prior art keywords
winding coil
iron core
resultant
service aisle
electromagnetic viscosimeter
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CN201520028143.3U
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Chinese (zh)
Inventor
肖红
何浩
袁俊
蒋晓奇
王强
刘毅
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HUNAN ZHONGKE ELECTRIC CO Ltd
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HUNAN ZHONGKE ELECTRIC CO Ltd
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Abstract

A kind of electromagnetic viscosimeter device of resultant field, comprise winding coil and outer iron core, the inside of described outer iron core is provided with the inner chamber that matches with described winding coil size and two ends are provided with the opening with described inner space, the central through hole of described winding coil is service aisle, described winding coil is arranged in outer iron core inner chamber, and the opening of described outer iron core is communicated with service aisle, between described winding coil and service aisle, insulation material layer is equipped with between described winding coil and outer iron core, described winding coil is electrically connected with the power-supply controller of electric exchanging complex incentive electric current with can provide direct current simultaneously, the utility model realizes passing in same winding coil hands over straight recombination current to produce electromagnetic viscosimeter, reduce apparatus structure volume.This device is at the externally-arranged iron core of winding coil simultaneously, improves the magnetic flux density in device inner chamber, has given full play to the oscillation effect of resultant field to casting billet surface.

Description

A kind of electromagnetic viscosimeter device of resultant field
Technical field
The utility model relates to a kind of electromagnetic viscosimeter device of resultant field.
Background technology
For improving and thinning metal solidification texture, improve the combination property of material, in metallurgical and metal material processing field, the main method adopted has: pulsed magnetic field or pulse current, machinery or electromagnetic agitation, electromagnetic viscosimeter.Apply pulse current and pulsed magnetic field crystal grain thinning organization need transient high-current or high voltage, easily cause metal bath surface fluctuate simultaneously, cause solution air-breathing to be mingled with into oxide etc. with wrapping up in, the thinning effect of metal solidification texture is limited; Adopt paddling process to be also the crystal fining method used in a large number at present, mechanical mixing method is due to the consideration by whole continuous casting line installing space and security, and application has certain limitation; Electromagnetic agitation is widely applied at present, but causes metallic solution swirl velocity comparatively large owing to stirring, and easily produces negative segregation in solid-liquid two-phase region, forms white band, affect the metallurgical quality of metal, the careful use of palpus;
Electromagnetic viscosimeter technology, utilizes the method that electromagnetic soft-contact and micro-stirring combine, and by the reciprocation of constant magnetic field and alternating magnetic field, produces Lorentz power, makes metal bath produce forced oscillation.Electromagnetic viscosimeter power adds wetting to high temperature solid-state compound and accurate solid phase elementide of melt by tension and compression repeatedly, produces sizable disturbance, be more conducive to the refinement to metal structure to melt.But existing electromagnetic viscosimeter device, there is following not enough and defect: the electromagnetic viscosimeter device 1, owing to using at present must be equipped with two supply units and power respectively to twin coil, one in order to produce constant magnetic field, another produces alternating magnetic field, steady and the alternating magnetic field compound of final perseverance produces electromagnetic viscosimeter, thus causing apparatus structure not compact, installing space is larger.2, in addition because the coil of two in device is separated by a distance, thus reduce constant magnetic field and the interactional effect of alternating magnetic field, magnetic induction intensity and the electromagnetic force of generation are less than normal, are not suitable for industrial production.
Utility model content
The purpose of this utility model is to overcome the deficiency of prior art and provides that a kind of structure is simple, electromagnetic viscosimeter power is large, practical and the electromagnetic viscosimeter device of the good resultant field of metal solidification texture thinning effect.
The purpose of this utility model is achieved by following technical proposals:
A kind of electromagnetic viscosimeter device of resultant field, comprise winding coil and outer iron core, the inside of described outer iron core is provided with the inner chamber that matches with described winding coil size and two ends are provided with the opening with described inner space, the central through hole of described winding coil is service aisle, described winding coil is arranged in outer iron core inner chamber, and the opening of described outer iron core is communicated with service aisle, between described winding coil and service aisle, insulation material layer is equipped with between described winding coil and outer iron core, described winding coil is electrically connected with the power-supply controller of electric exchanging complex incentive electric current with can provide direct current simultaneously.
Be provided with insulating mica plate between described winding coil and service aisle to seal, between described winding coil and outer iron core, be provided with aluminum silicate layer.
Outer iron core outside described winding coil is made up of high permeability material.
Described winding coil is solenoid form, and described winding coil coiling shape is round or square, and described winding wire astragal mode is single line or parallel winding of multiple coils.
Described winding coil is provided with the cooling device of cooling winding coil.
Owing to adopting such scheme, this device adopts a winding coil, alternately direct current and ac-excited electric current is provided respectively to winding coil by a power controller controls, thus make winding coil produce a kind of permanent steady and interactive resultant field of alternation, make to produce larger and stable stretching out and the alternating electromagnetic force of constriction inwards by the strand of resultant field at base shell solidification front, make the solidification front dendrite produced in vibration drive metal liquid make forward and reverse direction to vibrate and the dendrite that fractures, become the core of equiax crystal, serve the effect of thinning solidification structure, in addition, the Joule heat remarkable benefit of electric current improves the thermograde in solid-liquid two-phase interface forward position, further improves the structure and properties of strand, simultaneously, because metal liquid does not exist excessive rotating Vortex motion under this active force, therefore, reduce the formation of white band in oscillatory process, make this apparatus structure compact like this owing to only have employed a winding coil, this device is also set with outer iron core outward at winding coil simultaneously, thus under same external drive condition, its magnetic flux density inside increases 30%-45%, is more conducive to the raising of oscillating force.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the utility model winding coil, service aisle and insulating mica plate annexation schematic diagram.
In accompanying drawing, 1, winding coil, 2, outer iron core, 3, strand, 4, cooling device, 5, power-supply controller of electric, 6, aluminum silicate layer, 7, insulating mica plate.
Detailed description of the invention
Below in conjunction with accompanying drawing, the detailed description of the invention of the electromagnetic viscosimeter device of resultant field is described.
As shown in Figure 1, a kind of electromagnetic viscosimeter device of resultant field, comprise winding coil 1, outer iron core 2, power-supply controller of electric 5, cooling device 4, power supply can be provided by power-supply controller of electric 5 simultaneously and hand over straight recombination current to winding coil 1 to produce a kind of permanent steady and interactive resultant field of alternation, the inside of outer iron core 2 is provided with the inner chamber that matches with described winding coil 1 size and two ends are provided with the opening with described inner space, the central through hole of described winding coil 1 is service aisle, strand 3 passes through from described service aisle, described winding coil 1 is arranged in outer iron core 2 inner chamber, to improve the magnetic flux density of device inner chamber, and the opening of described outer iron core 2 is communicated with service aisle, as shown in Figure 2, be provided with insulating mica plate 7 between described winding coil 1 and service aisle to seal, aluminum silicate layer 6 is provided with between described winding coil 1 and outer iron core 2.Described winding coil 1 is solenoid form, and described winding coil coiling shape is round or square, and described winding wire astragal mode is single line or parallel winding of multiple coils.Described winding coil is provided with the cooling device 4 of cooling winding coil.
In use, opening power, strand 3 passes through from service aisle, power supply produces a kind of permanent steady and interactive resultant field of alternation by power-supply controller of electric 5, resultant field is made to produce larger and stable stretching out and the alternating electromagnetic force of constriction inwards at strand 3 base shell solidification front, make the solidification front dendrite produced in vibration drive metal liquid make forward and reverse direction to vibrate and the dendrite that fractures, become the core of equiax crystal, serve the effect of thinning solidification structure.

Claims (5)

1. the electromagnetic viscosimeter device of a resultant field, comprise winding coil and outer iron core, it is characterized in that: the inside of described outer iron core is provided with the inner chamber that matches with described winding coil size and two ends are provided with the opening with described inner space, the central through hole of described winding coil is service aisle, described winding coil is arranged in outer iron core inner chamber, and the opening of described outer iron core is communicated with service aisle, between described winding coil and service aisle, insulation material layer is equipped with between described winding coil and outer iron core, described winding coil is electrically connected with the power-supply controller of electric exchanging complex incentive electric current with can provide direct current simultaneously.
2. the electromagnetic viscosimeter device of resultant field according to claim 1, is characterized in that: be provided with insulating mica plate between described winding coil and service aisle and seal, be provided with aluminum silicate layer between described winding coil and outer iron core.
3. the electromagnetic viscosimeter device of resultant field according to claim 2, is characterized in that: the outer iron core outside described winding coil is made up of high permeability material.
4. the electromagnetic viscosimeter device of resultant field according to claim 3, is characterized in that: described winding coil is solenoid form, and described winding coil coiling shape is round or square, and described winding wire astragal mode is single line or parallel winding of multiple coils.
5. according to the electromagnetic viscosimeter device of the resultant field one of Claims 1-4 Suo Shu, it is characterized in that: described winding coil is provided with the cooling device of cooling winding coil.
CN201520028143.3U 2015-01-15 2015-01-15 A kind of electromagnetic viscosimeter device of resultant field Active CN204430226U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520028143.3U CN204430226U (en) 2015-01-15 2015-01-15 A kind of electromagnetic viscosimeter device of resultant field

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520028143.3U CN204430226U (en) 2015-01-15 2015-01-15 A kind of electromagnetic viscosimeter device of resultant field

Publications (1)

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CN204430226U true CN204430226U (en) 2015-07-01

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108526424A (en) * 2018-04-09 2018-09-14 上海大学 A kind of magnetic field generator of double frequency electromagnetic agitation
CN111895031A (en) * 2020-07-28 2020-11-06 河海大学 Magnetorheological fluid damper with heat insulation function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108526424A (en) * 2018-04-09 2018-09-14 上海大学 A kind of magnetic field generator of double frequency electromagnetic agitation
CN108526424B (en) * 2018-04-09 2020-11-24 上海大学 Magnetic field generator of dual-frenquency electromagnetic stirring
CN111895031A (en) * 2020-07-28 2020-11-06 河海大学 Magnetorheological fluid damper with heat insulation function

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