CN102211161A - Method and device for improving quality of continuous casting large-diameter hollow metal pipe blank - Google Patents
Method and device for improving quality of continuous casting large-diameter hollow metal pipe blank Download PDFInfo
- Publication number
- CN102211161A CN102211161A CN 201110140473 CN201110140473A CN102211161A CN 102211161 A CN102211161 A CN 102211161A CN 201110140473 CN201110140473 CN 201110140473 CN 201110140473 A CN201110140473 A CN 201110140473A CN 102211161 A CN102211161 A CN 102211161A
- Authority
- CN
- China
- Prior art keywords
- magnetic field
- continuous casting
- crystallizer
- tube blank
- spiral stirring
- 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.)
- Granted
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 55
- 239000002184 metal Substances 0.000 title claims abstract description 55
- 238000009749 continuous casting Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000003756 stirring Methods 0.000 claims abstract description 61
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 238000005266 casting Methods 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 239000000498 cooling water Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 238000005204 segregation Methods 0.000 abstract description 6
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- 230000002950 deficient Effects 0.000 description 7
- 239000010813 municipal solid waste Substances 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 150000002738 metalloids Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Images
Landscapes
- Continuous Casting (AREA)
Abstract
The invention discloses a method and a device for improving the quality of a continuous casting large-caliber hollow metal pipe blank, wherein an electromagnetic coil is arranged at the outer side of an outer crystallizer, a spiral stirring magnetic field generator is arranged in the inner crystallizer, a medium-frequency magnetic field and a high-frequency magnetic field are applied to a metal melt poured into a pouring cavity formed by the inner crystallizer and the outer crystallizer at the outer side of the outer crystallizer, and simultaneously a low-power frequency spiral stirring magnetic field is applied to the metal melt in the pouring cavity in the inner crystallizer. The invention can mainly solve the quality of the outer surface of the hollow tube blank by utilizing the electromagnetic coil, and the spiral stirring magnetic field generator can effectively improve the quality of the inner surface and the inner quality of the tube blank, remove the defects of non-metallic inclusions, bubbles, segregation, cracks and the like, and can obviously improve the macroscopic solidification structure of the tube blank. The invention is suitable for continuous casting of hollow steel pipe blanks with the inner diameter of more than 100mm and also suitable for continuous casting of hollow pipe blanks made of other alloys.
Description
Technical field
The invention belongs to the preparation field of seamless heavy caliber hollow metal tube blank, specially refer to a kind of continuous casting hollow metal tube blank that improves such as steel pipe base method for quality, and device.
Background technology
Along with the develop rapidly of industries such as China's electric power, petrochemical industry, the demand of high-quality seamless heavy caliber hollow steel pipe is constantly increased.Because work under bad environment is strict to the surfaces externally and internally quality and the solidified structure of tubing.The processing method that seamless heavy caliber hollow steel pipe is commonly used is by continuous casting hollow bloom is obtained tubing by operations such as follow-up rolling, drawings, and the blank quality of continuous casting hollow bloom is directly determining the service property (quality) of metal pipe material.The hollow bloom continuous casting technology is meant on the vertical continuous casting machine, and high-temperature molten steel is poured in the cavity (cast chamber) that is formed by inside and outside crystallizer, solidifies to form constantly to be pulled out behind the certain thickness base shell and form hollow continuous casting billet.Have production efficiency height, using rate of metal advantages of higher though adopt the method for continuous casting to prepare the hollow steel pipe, it usually has shortcomings such as nonmetal slag inclusion, pore, segregation, surface indentation, solidified structure be thick.In order to improve the quality of hollow bloom, application for a patent for invention (application number 02109370.9) discloses a kind of method of hollow steel pipe electromagnetic continuous-casting, in hollow steel pipe continuous casting process, the crystallizer outside applies and stirs magnetic field or solenoid outside, perhaps applies the resultant field that stirs magnetic field and solenoid simultaneously.This kind method only is suitable for the casting process of small-bore hollow bloom, for bigbore hollow bloom continuous casting, adopt the required electromagnetic generator volume of this method very huge, can there be shortcomings such as manufacturing cost height, installation difficulty on the one hand, on the other hand to slab surface quality, especially inner surface quality improves DeGrain.The method that has proposed in aluminium alloy hollow bloom casting process, in inside and outside crystallizer, to place respectively the power frequency solenoid in the article " the different phase continuous casting electromagnetic of hollow bloom " of 2006 " China YouSe Acta Metallurgica Sinica " publication, this method can effectively be improved the surface quality and the solidified structure of aluminum pipe base, but for the steel metalloid pipe continuous casting of density much larger than aluminium alloy, because weight is big, adopt the method that applies solenoid to improve the effect of solidified structure and not obvious.Disclosed patent application CN101298094A in 2008 has proposed to apply solenoid by crystallizer outside, and the method for placing rotation or row ripple stirring magnetic field generator in interior crystallizer is improved the hollow bloom method for quality, in this method helps to solve, the segregation knurl of outer surface, defectives such as crackle, also can improve the solidified structure of pipe significantly, if apply rotation stirring magnetic field generator in the interior crystallizer but be chosen in, the rotation of molten steel will inevitably make non-metallic inclusion assemble to the center, though slab surface quality improves, but the center field trash might occur increases and reduces quality, make follow-up stocking produce defective, and apply rotating excitation field, be easy under the bigger magnetic field intensity in the inner segregation defective that produces of strand, promptly usually said " white band ", strict to the control requirement of magnetic field intensity.Stir magnetic field generator if in interior crystallizer, apply capable ripple, can make molten steel in mold produce convection current, wash away the freezing interface, can quicken the come-up of field trash and gas, and be dispersed in crystallizer liquid metal surface, can improve the internal soundness of strand, but improving effect and can't reach requirement surface quality.
Summary of the invention
In view of the foregoing, the invention provides a kind of new continuous casting heavy caliber hollow metal tube blank method for quality and device that uses said method of improving; In said method and the device, by the arranged outside solenoid of crystallizer outside, in interior crystallizer, place spiral stirring magnetic field generator simultaneously, utilize the outer surface quality of outside solenoid energy emphasis solution hollow bloom, and inner spiral stirring magnetic field generator can improve the inner surface quality and the internal soundness of pipe effectively.
Its technical solution is:
A kind of continuous casting heavy caliber hollow metal tube blank method for quality of improving may further comprise the steps:
Step 1, in the outside of the outer crystallizer of hollow metal tube blank continuous casting installation for casting, the metal bath in being poured into the cast chamber that is formed by inside and outside crystallizer applies middle and high frequency magnetic field; The frequency in this middle and high frequency magnetic field is 1000Hz～50000Hz;
In casting process, metal bath constantly is poured in the cast chamber, simultaneously administration step 1 and step 2, and, obtain continuous casting hollow bloom with the bed die in certain speed pulling cast chamber.
Above-mentioned metal pipe is the steel pipe base, and described metal bath is a molten steel.
A kind of device that improves continuous casting heavy caliber hollow metal tube blank quality, the middle and high frequency solenoid that comprises the outer crystallizer outside that is arranged on the hollow metal tube blank continuous casting installation for casting is with low, the spiral stirring magnetic field generator of power frequency of the interior crystallizer inside that is arranged on the hollow metal tube blank continuous casting installation for casting; Above-mentioned middle and high frequency solenoid feeds alternating current, and the frequency of electric current is 1000Hz～50000Hz; Above-mentioned low; the spiral stirring magnetic field generator of power frequency is by the electromagnetic inductor that produces spiral stirring magnetic field; the cylindrical housings of protection electromagnetic inductor; and the cooling water channel of cooling electromagnetic inductor is formed; electromagnetic inductor coiling solenoid on iron core is made; solenoid is arranged according to gram winding method; feed three-phase alternating current; phase difference between every phase current is 120 °; the frequency of alternating current is 3 Hz～50Hz; the mandrel of above-mentioned iron core and the angle between the yoke are 30 °～60 °; under the effect of three-phase alternating electromagnetism coil magnetic field, make the direction that is poured into the electromagnetic force that the metal bath inside of cast in the chamber produced vertical, at the spiral stirring eddy flow of the inner formation of metal bath with magnetic line of force direction.
Above-mentioned cooling water channel is included in the cooling chamber that forms between the inwall of electromagnetic inductor and cylindrical housings, and is arranged on the water body refluxing opening in cooling water inlet port on the cylindrical housings, the cooling chamber; Adopt outer water direct-cooling type cooling structure that electromagnetic inductor is cooled off.
Above-mentioned iron core comprises vertical mandrel, solenoid is selected copper tube coil for use, copper tube coil is nested with on vertical mandrel according to gram winding method, on vertical mandrel, also be provided with several, the yoke of arranging successively from top to bottom, each yoke is approximate round table-like, and the sidewall of yoke is 30 °～60 ° with the axial line angle of vertical mandrel.
The present invention has following useful technique effect:
The present invention applies solenoid in the crystallizer outside outside, in interior crystallizer, place spiral stirring magnetic field generator simultaneously, but solve the outer surface quality of hollow bloom by the solenoid emphasis, and spiral stirring magnetic field generator can effectively improve the inner surface quality and the internal soundness of pipe, remove defectives such as non-metallic inclusion, bubble, segregation, crackle, and can improve macroscopical solidified structure of pipe significantly.In addition, in interior crystallizer, place spiral stirring magnetic field generator, be convenient to operation on the one hand, the volume of this magnetic field generator is little on the other hand, the efficient height is suitable for being placed on the inside of interior crystallizer especially, and the metal bath that is in its cast chamber, outside is produced spiral stirring action.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing and the specific embodiment:
Fig. 1 is the structural principle schematic diagram of a kind of embodiment of installing among the present invention, also shows the relevant portion of hollow metal tube blank continuous casting installation for casting (machine) in the lump.
Fig. 2 is the structural principle schematic diagram of low, the spiral stirring magnetic field generator of power frequency in Fig. 1 mode.
Fig. 3 is a helical stir principle schematic low, the spiral stirring magnetic field generator of power frequency.
The specific embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of device that improves continuous casting heavy caliber hollow metal tube blank quality, this device is applicable to hollow metal tube blank continuous casting installation for casting (machine), this continuous casting installation for casting comprises outer crystallizer 3, interior crystallizer 4, form cast chamber 8 between interior crystallizer 4 and the outer crystallizer 3, the bottom in cast chamber 8 is provided with the bed die 5 that can spur.Said apparatus comprises the middle and high frequency solenoid 1 that is arranged on outer crystallizer 3 outsides, with low, the spiral stirring magnetic field generator 2 of power frequency that are arranged on interior crystallizer 4 inside.Above-mentioned middle and high frequency solenoid feeds alternating current, and the frequency of electric current is 1000Hz～50000Hz.Above-mentioned low, the spiral stirring magnetic field generator 2 of power frequency comprises cylindrical housings 201, be arranged on the iron core 202 of cylindrical housings inside, be arranged on the solenoid 203 on the iron core 202, the inner chamber of cylindrical housings is a cooling chamber 204, cylindrical housings is provided with cooling water inlet port 205 and the interior water body refluxing opening 206 of cooling chamber, the solenoid of arranging according to gram winding method 203 feeds the three phase low frequency alternating current, the frequency of alternating current is 3Hz～50Hz, the cooling water that utilization enters in the cooling chamber cools off solenoid, takes away the heat that solenoid 203 produces.Angle between the mandrel of above-mentioned iron core 202 formed yokes and iron core is 30 °～60 °, under the effect of this coil magnetic field, making and be poured into the metal bath 7(of cast in the chamber such as molten steel) direction of the inner electromagnetic force that is produced is vertical with magnetic line of force direction, at the spiral stirring eddy flow of the inner formation of metal bath, promptly behind the downward-sloping certain angle of yoke, the direction of the magnetic line of force that produces in metal bath (metal bath) is corresponding with it, also from the horizontal by certain angle, according to the left hand helix rule as can be known, therefore the direction of the electromagnetic force that produces in metal bath is vertical with the magnetic line of force of coil, makes to produce spiral electromagnetic agitation in the metal bath under the effect of such electromagnetic force; Emphasis is referring to Fig. 3, and the helical curve in the diagram is represented the direction of spiral stirring eddy flow, and symbol B represents magnetic induction intensity, and its direction is a magnetic line of force direction, and symbol F represents electromagnetic force, and symbol I represents induced-current.More specifically be: above-mentioned iron core 202 comprises vertical mandrel 2021, solenoid 203 is selected copper tube coil for use, be nested with on vertical mandrel, on vertical mandrel, also be provided with several, the yoke 2022 of arranging successively from top to bottom, each yoke 2022 is approximate round table-like, and the sidewall of yoke is 30 °～60 ° with the axial line angle of vertical mandrel.
A kind of continuous casting heavy caliber hollow metal tube blank method for quality of improving may further comprise the steps:
Step 1 utilizes middle and high frequency solenoid 1 to apply middle and high frequency magnetic field at the metal bath 7 that the lateral is poured in the cast chamber; The frequency in this middle and high frequency magnetic field is 1000Hz～50000Hz;
In casting process, metal bath such as molten steel constantly is poured in the cast chamber, simultaneously administration step 1 and step 2, and, obtain continuous casting hollow bloom 6 with the bed die 5 in certain speed pulling cast chamber.
Stress again below among the present invention, low, the spiral stirring magnetic field generator of power frequency be set in interior crystallizer inside, promptly apply the difference of stirring magnetic field in spiral stirring magnetic field and other prior aries in interior crystallizer inside:
One, compare rotation and row ripple stirring magnetic field, the spiral stirring magnetic field among the present invention has more advantage
Apply spiral stirring magnetic field, can produce the spiral revolving force, make metal bath such as molten steel produce the stirring movement that spiral rises or descends, compare rotary stirring magnetic field and travelling-wave-type and stir magnetic field, it can more effectively improve slab surface quality, internal soundness and solidified structure.
Spiral stirring magnetic field can impel be mingled with, gas separates come-up with metal bath, and assembles to the liquid level center, the removing that helps being mingled with can be avoided being mingled with, defective such as pore.Experiment shows: under the essentially identical condition of mixing power, the content of field trash when the content of field trash is starkly lower than rotation stirring and the stirring of row ripple in the ingot casting under the spiral stirring action, the content of the interior field trash of strand only is half of rotation stirring under the spiral stirring action.
The helical magnetic field distribution of electromagnetic force helps forming the even stirring in big zone, to forming equiax crystal obvious facilitation is arranged.Compare rotation and stir and go the ripple stirring, the equiaxial crystal ratio that helical stir obtains is the highest.Expansion and refinement equiax crystal band can increase the strand crack resistance, eliminate central pipe, alleviate center porosity and center segregation.
Two, in interior crystallizer, apply spiral stirring magnetic field than the advantage that externally applies
By in the interior crystallizer of continuous casting hollow bloom, applying spiral stirring magnetic field following advantage is arranged:
1) above-mentioned spiral stirring magnetic field generator is rational in infrastructure, compact, has characteristics such as volume is little, utilization rate of electrical is higher, and can not hinder outside that the crystallizer place applies electromagnetic field, is convenient to operation.
2) in interior crystallizer, apply spiral stirring magnetic field can make pipe interior crystallizer side electromagnetic force greater than outside crystallizer side electromagnetic force, therefore be greater than the flowing velocity of outer crystallizer side melt near the flowing velocity of interior crystallizer side melt, so more help improving interior crystallizer side slab surface quality (as can better eliminate inner surface be mingled with, alleviate ripple mark etc.) and solidified structure (equiaxial crystal ratio as the internal surface of bloom side is higher), and because internal surface of bloom is not easy to mill the face processing, if inner surface exists defective can directly cause the tubing defective.Therefore, in interior crystallizer, apply spiral stirring magnetic field and compare the quality of more effectively improving pipe at the outside placement stirring of pipe magnetic field energy.
The method that the present invention proposes is applicable to the continuous casting of the hollow steel pipe that interior diameter 100mm is above, also is applicable to the continuous casting of the hollow bloom of other class alloys.
Need to prove; those of ordinary skill in the art is under the instruction of this specification; not breaking away under the scope situation that claim of the present invention protects, can also make various deformation such as replacement, simple combination, these all fall within protection scope of the present invention.
Claims (5)
1. one kind is improved continuous casting heavy caliber hollow metal tube blank method for quality, it is characterized in that may further comprise the steps:
Step 1, in the outside of the outer crystallizer of hollow metal tube blank continuous casting installation for casting, the metal bath in being poured into the cast chamber that is formed by inside and outside crystallizer applies middle and high frequency magnetic field; The frequency in intermediate frequency magnetic field is that the frequency of 1000Hz～9000Hz, high frequency magnetic field is 10000Hz～50000Hz;
Step 2, in the inboard of the interior crystallizer of hollow metal tube blank continuous casting installation for casting, the metal bath in being poured into the cast chamber that is formed by inside and outside crystallizer applies low, the spiral stirring of power frequency magnetic field; The frequency in this spiral stirring magnetic field is 3Hz～50Hz;
In casting process, metal bath constantly is poured in the cast chamber, simultaneously administration step 1 and step 2, and, obtain continuous casting hollow bloom with the bed die in certain speed pulling cast chamber.
2. the continuous casting heavy caliber hollow metal tube blank method for quality of improving according to claim 1, it is characterized in that: described metal pipe is the steel pipe base, described metal bath is a molten steel.
3. device that improves continuous casting heavy caliber hollow metal tube blank quality, it is characterized in that comprising the middle and high frequency solenoid in the outer crystallizer outside that is arranged on the hollow metal tube blank continuous casting installation for casting, with low, the spiral stirring magnetic field generator of power frequency of the interior crystallizer inside that is arranged on the hollow metal tube blank continuous casting installation for casting; Above-mentioned middle and high frequency solenoid feeds alternating current, and the frequency of electric current is 1000Hz～50000Hz; Described low; the spiral stirring magnetic field generator of power frequency is by the electromagnetic inductor that produces spiral stirring magnetic field; the cylindrical housings of protection electromagnetic inductor; and the cooling water channel of cooling electromagnetic inductor is formed; electromagnetic inductor coiling solenoid on iron core is made; solenoid is arranged according to gram winding method; feed three-phase alternating current; phase difference between every phase current is 120 °; the frequency of alternating current is 3 Hz～50Hz; the mandrel of above-mentioned iron core and the angle between the yoke are 30 °～60 °; under the effect of three-phase alternating electromagnetism coil magnetic field, make the direction that is poured into the electromagnetic force that the metal bath inside of cast in the chamber produced vertical, at the spiral stirring eddy flow of the inner formation of metal bath with magnetic line of force direction.
4. a kind of device that improves continuous casting heavy caliber hollow metal tube blank quality according to claim 3, it is characterized in that: described cooling water channel is included in the cooling chamber that forms between the inwall of electromagnetic inductor and cylindrical housings, and is arranged on the water body refluxing opening in cooling water inlet port on the cylindrical housings, the cooling chamber; Adopt outer water direct-cooling type cooling structure that electromagnetic inductor is cooled off.
5. a kind of device that improves continuous casting heavy caliber hollow metal tube blank quality according to claim 3, it is characterized in that: described iron core comprises vertical mandrel, solenoid is selected copper tube coil for use, copper tube coil is nested with on vertical mandrel according to gram winding method, on vertical mandrel, also be provided with several, the yoke of arranging successively from top to bottom, each yoke is approximate round table-like, and the sidewall of yoke is 30 °～60 ° with the axial line angle of vertical mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110140473A CN102211161B (en) | 2011-05-27 | 2011-05-27 | Method and device for improving quality of continuous casting large-diameter hollow metal pipe blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110140473A CN102211161B (en) | 2011-05-27 | 2011-05-27 | Method and device for improving quality of continuous casting large-diameter hollow metal pipe blank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102211161A true CN102211161A (en) | 2011-10-12 |
| CN102211161B CN102211161B (en) | 2012-10-03 |
Family
ID=44742828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110140473A Expired - Fee Related CN102211161B (en) | 2011-05-27 | 2011-05-27 | Method and device for improving quality of continuous casting large-diameter hollow metal pipe blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102211161B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447490A (en) * | 2013-09-04 | 2013-12-18 | 青岛理工大学 | Method and device for removing non-metallic inclusions in continuous casting process of hollow pipe blank |
| CN108526424A (en) * | 2018-04-09 | 2018-09-14 | 上海大学 | A kind of magnetic field generator of double frequency electromagnetic agitation |
| CN110340316A (en) * | 2019-07-11 | 2019-10-18 | 张家港高合特种合金材料有限公司 | A kind of preparation method and device of easy segregation-alloy pipe |
| CN112974749A (en) * | 2021-02-09 | 2021-06-18 | 东北大学 | Electromagnetic stirring device and method for improving feeding capacity and center quality of casting blank liquid core |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1288787A (en) * | 1999-09-22 | 2001-03-28 | 大连理工大学 | Continuous casting method using electromayhetic cast mold with unequal width gaps |
| JP2001321903A (en) * | 2000-03-09 | 2001-11-20 | Kawasaki Steel Corp | Method for producing continuously cast slab |
| CN1380153A (en) * | 2002-03-27 | 2002-11-20 | 大连理工大学 | Electromagnetic continuous casting method of hollow metal tube blank |
| CN101298094A (en) * | 2008-03-19 | 2008-11-05 | 大连理工大学 | Method for improving quality of continuous casting hollow bloom by applying composite alternating electromagnetic field and device |
| CN101391291A (en) * | 2008-11-05 | 2009-03-25 | 江苏大学 | Metal matrix composition home-position synthesizing method in combined electric magnetic field |
| EP2269750A1 (en) * | 2008-04-28 | 2011-01-05 | Sumitomo Metal Industries, Ltd. | Method for continuous casting of steel and electromagnetic stirrer usable therefor |
| CN202146981U (en) * | 2011-05-27 | 2012-02-22 | 青岛理工大学 | Device for improving quality of continuous casting large-caliber hollow metal pipe blank |
-
2011
- 2011-05-27 CN CN201110140473A patent/CN102211161B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1288787A (en) * | 1999-09-22 | 2001-03-28 | 大连理工大学 | Continuous casting method using electromayhetic cast mold with unequal width gaps |
| JP2001321903A (en) * | 2000-03-09 | 2001-11-20 | Kawasaki Steel Corp | Method for producing continuously cast slab |
| CN1380153A (en) * | 2002-03-27 | 2002-11-20 | 大连理工大学 | Electromagnetic continuous casting method of hollow metal tube blank |
| CN101298094A (en) * | 2008-03-19 | 2008-11-05 | 大连理工大学 | Method for improving quality of continuous casting hollow bloom by applying composite alternating electromagnetic field and device |
| EP2269750A1 (en) * | 2008-04-28 | 2011-01-05 | Sumitomo Metal Industries, Ltd. | Method for continuous casting of steel and electromagnetic stirrer usable therefor |
| CN101391291A (en) * | 2008-11-05 | 2009-03-25 | 江苏大学 | Metal matrix composition home-position synthesizing method in combined electric magnetic field |
| CN202146981U (en) * | 2011-05-27 | 2012-02-22 | 青岛理工大学 | Device for improving quality of continuous casting large-caliber hollow metal pipe blank |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447490A (en) * | 2013-09-04 | 2013-12-18 | 青岛理工大学 | Method and device for removing non-metallic inclusions in continuous casting process of hollow pipe blank |
| 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 |
| CN110340316A (en) * | 2019-07-11 | 2019-10-18 | 张家港高合特种合金材料有限公司 | A kind of preparation method and device of easy segregation-alloy pipe |
| CN112974749A (en) * | 2021-02-09 | 2021-06-18 | 东北大学 | Electromagnetic stirring device and method for improving feeding capacity and center quality of casting blank liquid core |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102211161B (en) | 2012-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106623832B (en) | A kind of preparation facilities and method of super large-scale aluminium alloy ingot casting | |
| CN103331435A (en) | Method for controlling metal solidification phase texture in combined mode through external rotating magnetic field and current and fusion casting device of method | |
| KR20180115364A (en) | Non-contacting molten metal flow control | |
| CN105108080B (en) | Suppress the Semi-continuous casting crystallizer and its using method of magnesium alloy ingot blank cracking | |
| CN102554165B (en) | Electromagnetic device for stirring metal melt spirally | |
| CN113426970B (en) | Vertical semi-continuous production device and production process of large round billets with phi of 1000 mm-2000 mm | |
| CN105935752A (en) | Vertical electromagnetic stirring method for controlling casting blank center quality | |
| CN102211161B (en) | Method and device for improving quality of continuous casting large-diameter hollow metal pipe blank | |
| CN1156350C (en) | Process and equipment for preparing semi-solid-state metal slurry in spherical primary crystal or raw material for conticasting | |
| CN202146981U (en) | Device for improving quality of continuous casting large-caliber hollow metal pipe blank | |
| CN202490919U (en) | Device by using electromagnetic induction water-cooling joint-cutting type crystallizer as ingot mould | |
| CN1142045C (en) | Continuous metal casting method with applied composite electromagnetic field | |
| CN103464705A (en) | Electromagnetic flow control method for slowing fluctuation of liquid level of crystallizer | |
| CN102166637B (en) | Method for eliminating central shrinkage cavities and shrinkage porosities of continuously-cast steel ingot | |
| CN101298094A (en) | Method for improving quality of continuous casting hollow bloom by applying composite alternating electromagnetic field and device | |
| CN201603845U (en) | Electromagnetic-forming casting equipment of torpedo cabin casting | |
| CN203610633U (en) | Cored crystallization system for up-drawing continuous casting of copper tubes and copper alloy tubes | |
| CN204413085U (en) | Electromagnetism crystallization agitator | |
| CN201304475Y (en) | Continuous casting device for producing round billet with diameter being more than or equal to Phi 800 mm on straight-form conticaster | |
| CN107008884B (en) | Cooling mold and method for cooling steel ingot | |
| CN102554191B (en) | Aluminum-magnesium alloy composite casting device | |
| CN203610632U (en) | Crescent face radial high-shearing electromagnetic stirring round blank continuous casting device | |
| CN1254552C (en) | Device for preparing semisolid metal and alloy pulp or blank | |
| CN210908017U (en) | Electromagnetic multi-cyclone stirring casting device | |
| CN104439196B (en) | The technique of consumable shear flow method thinning solidification structure and device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20160527 |