CN205057039U - Immersion nozzle electromagnetic stirring device - Google Patents
Immersion nozzle electromagnetic stirring device Download PDFInfo
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- CN205057039U CN205057039U CN201520793317.5U CN201520793317U CN205057039U CN 205057039 U CN205057039 U CN 205057039U CN 201520793317 U CN201520793317 U CN 201520793317U CN 205057039 U CN205057039 U CN 205057039U
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- submersed nozzle
- travelling
- coil
- electromagnetic induction
- mixing apparatus
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- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model discloses an immersion nozzle electromagnetic stirring device, including a pair of magnetic field opposite travelling wave electromagnetic induction device that move of parallel mount in the immersion nozzle both sides to and transmission, can realize travelling wave electromagnetic induction device's vertical, horizontal push -and -pull through vertical and transverse guide, under the condition that does not change the continuous casting device, online convenient operation, swift, neotype magnetic circuit design can pierce through the magnetic field of molten steel thickness in the center formation of mouth of a river axis, its magnetic field utilization ratio of having improved under the minor diameter molten steel in the mouth of a river greatly. And adopt two pairs of bar travelling wave magnetic field induction system structures, the bias flow having avoided opening type U type or C type electromagnetism whirl device and cause the molten steel because moment is asymmetric. Adopt the utility model discloses, can not exert an influence to the operation of current production technologies such as the online change at the mouth of a river, liquid level detection, but the smooth and easy operation of furthest's assurance electromagnetism whirl continuous casting.
Description
Technical field
The utility model belongs to continuous casting technology field, is specifically related to a kind of submersed nozzle electromagnetic mixing apparatus.
Background technology
In the casting process of steel, the bias current of submersed nozzle is inevitable, and has impact to the flow field of molten steel in mold, the distribution in temperature field and liquid fluctuating etc., finally affects the pulling rate of continuous casting billet surface and internal soundness and continuous casting.And make in the mouth of a river molten steel produce horizontally rotate flowing be suppress bias current produce effective means.As far back as 19 world latter stages, SUMITOMO CHEMICAL metal company etc. are just placed rotating vane at submersed nozzle neck and are produced eddy flow, its research shows, can improve molten steel in mold flowing and being uniformly distributed of temperature further by producing eddy flow in inside, the mouth of a river, and the fluctuation of obvious reduction liquid level; But this method also exists obvious deficiency: one be refractory material rotating vane due to molten steel to wash away the life-span short, and field trash is adsorbed on blade and easily blocks, often change blade not only cost improve, more have a strong impact on production efficiency; Two be the eddy flow that produces of this blade mainly by the impetus of molten steel hydrostatic pressure, can not the rotary speed that produces of active adjustment molten steel, be difficult to applicable different process requirement, therefore application is restricted.
Though the rotation based on electromagnetic force generation efficiently avoid the deficiency of traditional mechanical type eddy flow, but if want to install electromagnetic eddy flow device in submersed nozzle region, its mounting means then needs special consideration to the negative effect that site technique operation etc. produces.The one two flap-type submersed nozzle electromagnetic eddy flow device mentioned with patent CN203956040U, though to a certain extent, solve open the initial stage of watering and latter stage electromagnetic eddy flow device installation and removal problem, but in running, the emergency occurred, cannot facilitate and tackle timely, this device takes up space larger in addition, inconvenience is brought to the hand inspection of liquid level in crystallizer and the interpolation of covering slag, simultaneously, due to adopt open lobe drive unit adopt be electronic mode, under so severe operating mode, the mechanical failure that its drive unit occurs is difficult to avoid, if break down in running, be difficult to reply especially.In addition, the electromagnetic eddy flow device of a kind of single-open that patent CN203956039U mentions, as U-shaped electromagnetic eddy flow device, but because submersed nozzle diameter is generally at about 100 ~ 180mm, like this when sensor body structural design, the winding space of arch section is very restricted, be difficult to reach and produce the number of turn that required electromagnetic force requires lower coil, simultaneously, magnetic field utilization rate is very low, and due to electromagnetic force circumferentially skewness will certainly cause the bias current of molten steel in submersed nozzle.At present, realizing industrialization, to run the subject matter one existed be that crystallizer upper surface is to middle handbag base space, between submersed nozzle and pendulum chute, mounting distance is very limited; Two are that submersed nozzle diameter is smaller and magnetic field EFFECTIVE RANGE is shorter, and in it, molten steel flow speed is larger, will realize molten steel eddy flow in the mouth of a river at short notice, to field form and performance requirement high.
For these reasons, must redesign mouth of a river electromagnetic mixing apparatus, the performance requirement of continuous casting electromagnetic eddy flow can be met, larger impact not produced on existing continuous casting process again.
Utility model content
For existing electromagnetic eddy flow downspout Problems existing in practical technique; the utility model provides a kind of submersed nozzle electromagnetic mixing apparatus; under the condition not changing casting apparatus; a pair contrary travelling-magnetic-field induction installation is adopted in submersed nozzle both sides; and adopt transmission device to be suspended at the bottom of middle handbag, to carry out pure Mechanical Moving location and dismounting are installed, the interpolation of artificial level detection and covering slag can be carried out online easily.
For realizing above object, the technical solution adopted in the utility model is as follows:
A kind of submersed nozzle electromagnetic mixing apparatus, submersed nozzle is arranged on tundish bottom and inserts below crystallizer molten steel surface, comprise Parallel Symmetric and be installed on the contrary travelling-wave electromagnetic induction installation in two Movement in Magnetic Field directions of the submersed nozzle left and right sides, and transmission device;
Described travelling-wave electromagnetic induction installation comprises shell, is arranged at the iron core in shell and organizes coil more; Note coil always organizes that number is MN, M, N is the positive integer being more than or equal to 2;
Described often group coil is connected with the alternating current of a phase bit, frequency and current strength, phase place wherein meets following relation:
Often organize the electric current that adjacent windings passes to out of phase respectively, and between each group adjacent windings, the alive phase difference of institute is identical, N group coil forms a complete phase cycling, and a phase cycling forms a magnetic pole; Every platform travelling-wave electromagnetic induction installation is formed with M magnetic pole on core length direction; And adjacent pole is opposite pole; Shell is just provided with boundary sign to the line of demarcation place of adjacent pole; Every platform travelling-wave electromagnetic induction installation must possess the coil of two or more phase cycling, and namely M is more than or equal to 2; Submersed nozzle position must just at two phase cycling boundarys, and namely the central axis of submersed nozzle aligns with boundary sign (line of demarcation of adjacent pole).
Described transmission device comprises parallel transverse and is arranged at two of tundish bottom bag end guide rails, is arranged on box body guide rail above travelling-wave electromagnetic induction installation and four connection brackets along core length direction (longitudinal direction);
Motion is equipped with above and below described connection bracket; The motion of top can along bag end guide rail transverse shifting, and the motion of below can vertically move along box body guide rail;
Every platform travelling-wave electromagnetic induction installation is all suspended on bag end guide rail by two connection brackets; About the contrary travelling-wave electromagnetic induction installation Parallel Symmetric in two Movement in Magnetic Field directions is installed on submersed nozzle, and the central axis of submersed nozzle aligns with boundary sign (line of demarcation of adjacent pole).
Described motion is rolling bearing, roller or slide block.
Preferably, a pair rolling bearing is respectively provided with above and below described connection bracket; A pair rolling bearing of top laterally can roll along bag end guide rail, and a pair rolling bearing of below longitudinally can roll along box body guide rail; Adopt rolling bearing, the friction between guide rail can be reduced, make operation more smooth and easy, also reduce the noise in running simultaneously.
Described submersed nozzle electromagnetic mixing apparatus, also be provided with U-shaped radome, U-shaped radome is close to core exterior surface and is installed, or is arranged on outside coil, and the face (i.e. the opening direction of U-shaped radome) of the non-conductively-closed of iron core is magnetic field working face (in the face of submersed nozzle).
Number MN always organized by described coil can get 6n, and makes every 3 groups of coils form a complete phase cycling, i.e. N=3, M=2n, wherein n be more than or equal to 1 positive integer; Consider the restriction of space and length, get n=1, namely number MN=6 always organized by described coil, and every 3 groups of coils form a complete phase cycling, i.e. N=3, M=2.
Described iron core, by bar shaped or arc silicon steel sheet or electrical pure iron is stacked forms, between silicon steel sheet or electrical pure iron and be provided with insulating barrier outside iron core; Described many group coils are wound on outside bar shaped or arc-shaped iron core by Gramer's coiling form, and the number of turn of each group coil is identical.
Described iron core is of a size of:
Width K meets: 30mm<K<100mm;
Height G meets: 150mm<G<270mm;
Length L meets: 300mm<L<700mm.
The employing inner-cooling structure of described many group coils or outer air-cooled structure; Cooling can adopt outer cold or interior cold mode.
Described coil is made up of copper pipe, and wherein circulation has cooling water.
Described coil of often organizing has 18 ~ 50 circle coils.
Installation method of the present utility model is:
A): the motion below two connection brackets is longitudinally sent into box body guide rail by the opening of box body guide rail one end; Motion above two connection brackets is laterally sent into two box body guide rails respectively by the opening of two bag guide rail one end, the end; Repeat aforesaid operations, travelling-wave electromagnetic induction installation contrary for two Movement in Magnetic Field directions is all suspended on bag end guide rail;
B): coordinated with box body guide rail by the motion below connection bracket, travelling-wave electromagnetic induction installation is vertically moved relative to tundish, central axis and boundary sign (line of demarcation of adjacent pole) to submersed nozzle align;
C): coordinated with bag end guide rail by the motion above connection bracket, make travelling-wave electromagnetic induction installation relative to tundish transverse shifting, regulate the standoff distance of two travelling-wave electromagnetic induction installations.
Travelling-wave electromagnetic induction installation is suspended on guide rail at the bottom of the bag of tundish bottom by connection bracket, in installation or removal process, manual promotion travelling-wave electromagnetic induction installation, until the boundary sign (line of demarcation of adjacent pole) on travelling-wave electromagnetic induction installation shell aligns with the central axis of submersed nozzle, then adopts bayonet lock to be fixed by motion; Adopt pure mechanical, hand-driven type of drive, reliability is higher.
Compared with prior art, the beneficial effects of the utility model:
1, by magnetic Circuit Design of the present utility model, what produce in submersed nozzle is rotating excitation field and penetrates the molten steel in the mouth of a river; And similar structures adopts other magnetic Circuit Design, just at the travelling-magnetic-field just the molten steel region of electromagnetic agitation just being existed to a pair reverse motions, center does not have the magnetic line of force and passes through, magnetic field utilization rate is low, be that the region that acts in the submersed nozzle of 80mm is then more limited at diameter, the magnetic field intensity that this magnetic circuit produces is not enough to promote to realize eddy flow in the molten steel short time in the mouth of a river; And by magnetic Circuit Design of the present utility model, the electromagnetic force provided is comparatively large, substantially improve the magnetic field utilization rate of molten steel in the mouth of a river under minor diameter.
2, the utility model can realize quick longitudinal, the horizontal push-and-pull of travelling-wave electromagnetic induction installation by vertical and horizontal guide rail, under the condition not changing casting apparatus, easy to operate, quick, and the transmission device adopted avoids the negative effect that inefficacy that is electronic or hydraulic transmission brings, simultaneously, the online replacing not affecting the mouth of a river waits operation, can ensure the smooth and easy operation of electromagnetic eddy flow continuous casting to greatest extent.Adopt pure mechanical, hand-driven type of drive, reliability is higher.
3, a pair travelling-wave electromagnetic induction installation of the present utility model is set in parallel in the left and right sides of submersed nozzle, both sides, front and back two all openings of submersed nozzle, carry out mold liquid level inspection to field worker, choose slag and add covering slag etc. bringing conveniently, change minimum to site technique, can not have an impact to existing production technology operation, the smooth and easy operation of electromagnetic eddy flow continuous casting can be ensured to greatest extent; And adopt a pair bar shaped travelling-magnetic-field induction installation structure, avoid the U-shaped or C type electromagnetic eddy flow device of open-type due to the asymmetric and bias current that is that cause molten steel of moment.The beneficial effect that circular electromagnetic eddy flow device brings can be replaced completely in the in-site installation space of being limited to.
4, the utility model iron core is outside equipped with radome, increase working region on the one hand---the magnetic field utilization rate of magnetic field intensity and magnetic circuit in submersed nozzle, on the other hand, also reduce other non-working surface region induced currents to the eddy-current heating at the bottom of middle handbag and the negative distortion that causes thereof, improve the reliability of equipment.
5, the utility model coiling adopts Gramer's winding configuration, more toothed electromagnetic mixing apparatus, in limited space, produce the same installation dimension needed for magnetic field little, and, adopt coiling form of the present utility model and core structure, the distribution of its submersed nozzle central magnetic field is more even, the magnetic pole (N or S pole) jointly formed by two groups of windings, magnetic flux density intensity in working region is stacking pattern, is more suitable for the requirement of the applying working condition of submersed nozzle electromagnetic eddy flow device.
In sum, the submersed nozzle electromagnetic mixing apparatus of front and back of the present utility model both-side opening and to support and transmission device neither affects existing continuous casting process, effectively can control again the mouth of a river and Mold flows, and effectively improves the quality of strand.The utility model generally can be applicable to existing square billet, circle base and slab caster.
Accompanying drawing explanation
Fig. 1 is side view of the present utility model;
Fig. 2 is the utility model iron core and winding winding structure schematic diagram; Fig. 2 (a) is the utility model core structure schematic diagram; Fig. 2 (b) is the utility model winding winding structure schematic diagram;
Fig. 3 is the utility model magnetic circuit Movement in Magnetic Field and submersed nozzle molten steel motion schematic diagram;
Fig. 4 is the utility model mounting means schematic diagram;
Fig. 5 is travelling-wave electromagnetic induction installation sectional view of the present utility model;
Description of reference numerals:
1-tundish, 2-bag end guide rail, 3-connection bracket, 4-box body guide rail, 5-iron core, 6-coil, 7-U-shaped radome, 8-submersed nozzle, 9-travelling-wave electromagnetic induction installation, 10-composite water, 11-intake-outlet joint, 12-crystallizer
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1:
As Figure 1-3, Fig. 1 is side view of the present utility model, a kind of submersed nozzle electromagnetic mixing apparatus, and submersed nozzle 8 to be arranged on bottom tundish 1 and to insert below the molten steel face of crystallizer 12; Fig. 2 is the utility model iron core and winding winding structure schematic diagram, and wherein iron core 5 adopts anodontia strip structure, and coil 6 adopts Gramer's winding configuration, and iron core is outside equipped with U-shaped radome 7; Fig. 3 is the novel magnetic circuit Movement in Magnetic Field of the utility model and submersed nozzle molten steel motion schematic diagram, the travelling-wave electromagnetic induction installation 9 that wherein a pair direction is contrary is just to installation, every platform travelling-wave electromagnetic induction installation 9 comprises 6 groups of coils, every 3 groups of coils are the complete phase cycling of formation one, form a magnetic pole, the line of demarcation place of every platform travelling-wave electromagnetic induction installation 9 adjacent pole, forms N or the S pole of an opposition; Adopt magnetic Circuit Design of the present utility model, under two contrary travelling-magnetic-fields, between the corresponding boundary sign of two symmetrical travelling-wave electromagnetic induction installations, the magnetic field of rotation can be formed, and the molten steel penetrated in the mouth of a river, the electromagnetic force provided is larger, and similar structures adopts other magnetic Circuit Design, just at the travelling-magnetic-field just the molten steel region of electromagnetic agitation just being existed to a pair reverse motions, center does not have the magnetic line of force and passes through, magnetic field utilization rate is low, and in the submersed nozzle 8 that diameter is 30 ~ 80mm, the region of effect is then more limited.Therefore, the magnetic field intensity that other magnetic structure produces is not enough to promote to realize eddy flow in the molten steel short time in the mouth of a river.
As illustrated in figures 4-5, Fig. 4 is the utility model mounting means schematic diagram.A pair rolling bearing is respectively provided with above and below the connection bracket that the present embodiment adopts; A pair rolling bearing of top laterally can roll along bag end guide rail, and a pair rolling bearing of below longitudinally can roll along box body guide rail; Its erecting device comprises end guide rail 2, and level of control (transverse direction) is mobile, connection bracket 3 (up and down each a pair rolling bearing), box body guide rail 4, controls vertical (longitudinal direction) mobile; In the course of work, the first step: the rolling bearing below two connection brackets is longitudinally sent into box body guide rail by the opening of box body guide rail one end; Rolling bearing above two connection brackets is laterally sent into two box body guide rails respectively by the opening of two bag guide rail one end, the end; Repeat aforesaid operations, travelling-wave electromagnetic induction installation contrary for two Movement in Magnetic Field directions is all suspended on bag end guide rail; Second step: coordinated with box body guide rail by the rolling bearing below connection bracket, make travelling-wave electromagnetic induction installation relative to tundish lengthwise movement, align (shown in Fig. 1 position) to the boundary sign (line of demarcation of adjacent pole) on travelling-wave electromagnetic induction installation 9 shell with the central axis of submersed nozzle 8; Finally, coordinated with bag end guide rail by the rolling bearing above connection bracket, make travelling-wave electromagnetic induction installation relative to tundish transverse movement, regulate the standoff distance of two travelling-wave electromagnetic induction installations, realize final operating position and regulate with fixing.
Fig. 5 is the utility model travelling-wave electromagnetic induction installation sectional view, and its travelling-wave electromagnetic induction installation 9, comprises iron core 5, coil 6, U-shaped radome 7, composite water 10, intake-outlet joint 11; Composite water 11 connecting copper pipe coil, composite water 10 is connected by four fluorine tube with intake-outlet joint 11, for introducing outside cooling water, carries out interior cold to copper tube coil 6; Composite water 10 is critical components of internal water cooling structure.It is not only for electrical coupling, and must be also a reliable water swivel simultaneously, makes coil can connect circuit and can introduce cooling water from outer water system easily or discharge in coil again; In addition, between the shell of travelling-wave electromagnetic induction installation 9 and coil 6, be provided with water route, inner space, form the outer cold of coil and iron core, preferably resolve the problems such as the heat radiation of submersed nozzle molten steel and eddy-current heating.
Embodiment 2:
In the present embodiment, exciting current is: 50 ~ 2000A, employing frequency is: 50 ~ 500Hz, adjacent two synchronous coils adopt series system to connect, iron core height is 200mm, wide 50mm, length is 500mm, travelling-wave electromagnetic induction installation body length is 690mm, article two, wrap end guide rail at a distance of 300mm, the longitudinal mobile range of travelling-wave electromagnetic induction installation is 0 ~ 380mm, travelling-wave electromagnetic induction installation transverse movable (to the close distance of submersed nozzle) scope is 0 ~ 210mm, transverse shifting travelling-wave electromagnetic induction installation, make two travelling-wave electromagnetic induction installation centers at a distance of 270mm, above-mentioned mobile device adopts pure mechanical, hand-driven push-and-pull, effectively prevent the counter productive that electronic or hydraulic drive brings.In Fig. 3, center, mouth of a river magnetic induction intensity can reach 1000 ~ 4000Gs, the moment of torsion that its rotating excitation field produces can reach 5 ~ 60Kg.cm, adopt the present embodiment, can not have an impact to the existing production technology operation of the online replacing, level detection etc. at the mouth of a river, meanwhile, the smooth and easy operation of electromagnetic eddy flow continuous casting can be ensured to greatest extent, the magnetic signature that circular electromagnetic eddy flow device brings can be replaced completely in the in-site installation space of being limited to.
Above-mentioned illustrated embodiment master is noted that the magnetic structure form of submersed nozzle electromagnetic mixing apparatus and the mounting means at the bottom of middle handbag, concrete size as travelling-wave electromagnetic induction installation then can be determined according to field condition, and the utility model does not do special restriction.
Claims (9)
1. a submersed nozzle electromagnetic mixing apparatus, submersed nozzle is arranged on tundish bottom and inserts below crystallizer molten steel surface, it is characterized in that, comprise Parallel Symmetric and be installed on the contrary travelling-wave electromagnetic induction installation in two Movement in Magnetic Field directions of the submersed nozzle left and right sides, and transmission device;
Described travelling-wave electromagnetic induction installation comprises shell, is arranged at the iron core in shell and organizes coil more; Number always organized by note coil is MN, and wherein M, N are the positive integer being more than or equal to 2;
Described often group coil is connected with the alternating current of a phase bit, frequency and current strength, phase place wherein meets following relation:
Often organize the electric current that adjacent windings passes to out of phase respectively, and between each group adjacent windings, the alive phase difference of institute is identical, N group coil forms a complete phase cycling, and a phase cycling forms a magnetic pole; Every platform travelling-wave electromagnetic induction installation is formed with M magnetic pole on core length direction; And adjacent pole is opposite pole; Shell is just provided with boundary sign to the line of demarcation place of adjacent pole;
Described transmission device comprises parallel transverse and is arranged at two of tundish bottom bag end guide rails, is arranged on box body guide rail above travelling-wave electromagnetic induction installation and four connection brackets along core length direction;
Motion is equipped with above and below described connection bracket; The motion of top can along bag end guide rail transverse shifting, and the motion of below can vertically move along box body guide rail;
Every platform travelling-wave electromagnetic induction installation is all suspended on bag end guide rail by two connection brackets; About the contrary travelling-wave electromagnetic induction installation Parallel Symmetric in two Movement in Magnetic Field directions is installed on submersed nozzle, and the central axis of submersed nozzle aligns with boundary sign.
2. submersed nozzle electromagnetic mixing apparatus according to claim 1, is characterized in that, described motion is rolling bearing, roller or slide block.
3. submersed nozzle electromagnetic mixing apparatus according to claim 1, is characterized in that, is also provided with U-shaped radome, and U-shaped radome is close to core exterior surface and is installed, or is arranged on outside coil, and the face of the non-conductively-closed of iron core is magnetic field working face.
4. submersed nozzle electromagnetic mixing apparatus according to claim 1, is characterized in that, number MN=6 always organized by described coil, and every 3 groups of coils form a complete phase cycling, i.e. N=3, M=2.
5. submersed nozzle electromagnetic mixing apparatus according to claim 1, is characterized in that, described iron core, by bar shaped or arc silicon steel sheet or electrical pure iron is stacked forms, between silicon steel sheet or electrical pure iron and be provided with insulating barrier outside iron core; Described many group coils are wound on outside bar shaped or arc-shaped iron core by Gramer's coiling form, and the number of turn of each group coil is identical.
6. submersed nozzle electromagnetic mixing apparatus according to claim 1, is characterized in that, described iron core is of a size of:
Width K meets: 30mm<K<100mm;
Height G meets: 150mm<G<270mm;
Length L meets: 300mm<L<700mm.
7. submersed nozzle electromagnetic mixing apparatus according to claim 1, is characterized in that, the employing inner-cooling structure of described many group coils or outer air-cooled structure.
8. submersed nozzle electromagnetic mixing apparatus according to claim 1, is characterized in that, described coil is made up of copper pipe, and wherein circulation has cooling water.
9. the submersed nozzle electromagnetic mixing apparatus according to any one of claim 2 ~ 8, is characterized in that, described coil of often organizing has 18 ~ 50 circle coils.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520793317.5U CN205057039U (en) | 2015-10-14 | 2015-10-14 | Immersion nozzle electromagnetic stirring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520793317.5U CN205057039U (en) | 2015-10-14 | 2015-10-14 | Immersion nozzle electromagnetic stirring device |
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| Publication Number | Publication Date |
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| CN205057039U true CN205057039U (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520793317.5U Withdrawn - After Issue CN205057039U (en) | 2015-10-14 | 2015-10-14 | Immersion nozzle electromagnetic stirring device |
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| CN (1) | CN205057039U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105127410A (en) * | 2015-10-14 | 2015-12-09 | 湖南中科电气股份有限公司 | Electromagnetic stirring device with submersed nozzle and mounting method of electromagnetic stirring device |
| CN110167694A (en) * | 2016-12-12 | 2019-08-23 | Abb公司 | Component for metal manufacturing process |
| CN113459508A (en) * | 2021-07-08 | 2021-10-01 | 杭州电子科技大学 | Multichannel converging type biological printing nozzle |
-
2015
- 2015-10-14 CN CN201520793317.5U patent/CN205057039U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105127410A (en) * | 2015-10-14 | 2015-12-09 | 湖南中科电气股份有限公司 | Electromagnetic stirring device with submersed nozzle and mounting method of electromagnetic stirring device |
| CN105127410B (en) * | 2015-10-14 | 2017-08-11 | 湖南中科电气股份有限公司 | A kind of submersed nozzle electromagnetic mixing apparatus and its installation method |
| CN110167694A (en) * | 2016-12-12 | 2019-08-23 | Abb公司 | Component for metal manufacturing process |
| CN113459508A (en) * | 2021-07-08 | 2021-10-01 | 杭州电子科技大学 | Multichannel converging type biological printing nozzle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160302 Effective date of abandoning: 20170811 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20160302 Effective date of abandoning: 20170811 |