CN2865934Y - Magnetic field reinforcing aluminium alloy low-frequency electromagnetic casting crystallizer - Google Patents
Magnetic field reinforcing aluminium alloy low-frequency electromagnetic casting crystallizer Download PDFInfo
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- CN2865934Y CN2865934Y CNU2005201460865U CN200520146086U CN2865934Y CN 2865934 Y CN2865934 Y CN 2865934Y CN U2005201460865 U CNU2005201460865 U CN U2005201460865U CN 200520146086 U CN200520146086 U CN 200520146086U CN 2865934 Y CN2865934 Y CN 2865934Y
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- induction coil
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- low frequency
- magnetic field
- frequency electromagnetic
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Abstract
A magnetic field enlargement type aluminum alloy low frequency electromagnetic casting mould belonging to non-ferrous metal half-continuous casting technical field. Its structure includes inner sleeve, outer sleeve, water joint board, break water and induction coil. The outer sleeve is outside the inner sleeve. Water joint board is set on outer sleeve bottom board. Hydrophthalmia is formed between water joint board and inner sleeve. Break water is set between water joint board and inner sleeve. The induction coil is fastened to the water chamber enclosed by mould inner sleeve, water joint board and mould outer sleeve through screw and insulation material. The outer sleeve made of induction coil and permeability magnetic material forms magnetic field generator. Low frequency AC is supplied to induction coil. With low frequency electromagnetic technology, the utility model can effectively improve the surface quality of ingot casting, greatly lower the crack initiation rate of alloy with strong cracking tendency. The low frequency electromagnetic field generated by induction coil can improve the restriction ability and mixing effect of electromagnetic field. Additionally, the utilization rate of electromagnetic field and magnetic field intensity of mould can be increased with the application of embedded induction coil.
Description
Technical field
The utility model belongs to a kind of non-ferrous metal semi-continuous casting technical field, particularly relates to a kind of magnetic-field-enhanced alumium alloy low frequency electromagnetic casting crystallizer.
Technical background
In non-ferrous metal semi-continuous casting technology, the ingot casting surface some defectives occur through regular meeting when casting, as cold shut, face crack, surface segregation etc., causes product must carry out surface cut before using, and greatly reduces lumber recovery like this; In addition, for the stronger alloy of crackle tendency, as the 7XXX line aluminium alloy, crackle can occur when casting or in the ingot casting of casting back even split, it can not be used, so this alloy can adopt very low casting speed when casting, but lumber recovery is still very low.
The utility model content
In order to solve the problem of above-mentioned existence, the purpose of this utility model is to provide a kind of magnetic-field-enhanced alumium alloy low frequency electromagnetic casting crystallizer.It is to adopt built-in induction coil, produces low frequency electromagnetic field by induction coil in metal bath, makes metal bath produce strong convection current.
Structure of the present utility model comprises interior cover, overcoat, water seam plate, water fender, induction coil, interior cover top and overcoat top overlap joint, be equipped with water seam plate on the overcoat base plate, the other end of water seam plate and an end face of interior cover form hydrophthalmia, be provided with water fender between water seam plate and the interior cover top board, induction coil is fixed on by overlapping in the crystallizer with screw rod and insulating materials, in the water cavity that water seam plate and crystallizer overcoat are surrounded, constitute field generator for magnetic by induction coil with the overcoat that magnetic material is made, in induction coil, be connected with low frequency ac, can obtain stronger magnetic field.
The utility model utilizes the low frequency electromagnetic casting technology, has improved the surface quality of ingot casting effectively, greatly reduces the cracking frequency of the strong alloy of crackle tendency.Produce low frequency electromagnetic field by induction coil, can improve the electromagnetic field length of penetration in the metal bath more greatly, improved the restriction ability and the mixing effect of electromagnetic field; In addition, owing to adopt built-in induction coil, make it more near melt, thereby increased the utilization rate of electromagnetic field; Magnetic field is transmitted in the overcoat that magnetic material is made, reduced the loss in magnetic field, thereby improved the magnetic field intensity in the crystallizer, and can improve its distribution, further improved the restriction ability and the mixing effect of electromagnetic field.
Description of drawings
Fig. 1 is a structure cross-sectional schematic of the present utility model;
Fig. 2 is the utility model course of work structure cross-sectional schematic;
1 melt inlet among the figure, 2 interior covers, 3 water fenders, 4 induction coils, 5 overcoats, 6 water seam plate, 7 hydrophthalmias, 8 water curtains, 9 melts, 10 ingot castings.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further:
Structure of the present utility model: cover 2 in comprising, overcoat 5, water seam plate 6, water fender 3, induction coil 4, the outside of cover 2 in overcoat 5 is enclosed in, be equipped with water seam plate 6 on overcoat 5 base plates, the other end of water seam plate 6 and an end face of interior cover 2 form hydrophthalmia, be provided with water fender 3 between water seam plate 6 and interior cover 2 top boards, induction coil 4 usefulness screw rods and insulating materials are fixed on by overlapping 2 in the crystallizer, in the water cavity that water seam plate 6 and crystallizer overcoat 5 are surrounded, constitute field generator for magnetic by induction coil 4 with the overcoat 5 that magnetic material is made, in induction coil 4, be connected with low frequency ac.Interior cover 2 is to be made by the good reflectal of heat conduction; The low frequency ac that induction coil 4 applies: frequency is 10Hz～30Hz, and intensity is 80A～200A, and produces low frequency electromagnetic field in melt; Crystallizer overcoat 5 is to make with the superconduction magnetic material, can obtain stronger magnetic field; Being shaped as of hydrophthalmia 7 is square, is of a size of 1mm * 1mm～3mm * 3mm, is united by interior cover 2 and water seam plate 6 to constitute, and forms uniform water curtain 8 in two cold-zones of ingot casting.
In aluminium alloy low frequency semi-continuous casting process, when metal bath 9 when melt inlet 1 enters into crystallizer, owing to be subjected to the effect of the electromagnetic field of induction coil 4 generations, cover 2 contact positions can form the meniscus of big radian in melt 9 and crystallizer, cause their contact area to reduce greatly, and then weakened heat exchange between them, so move to the crystallizer exit position of solidifying of metal bath 9, improved surface quality greatly.In addition, this electromagnetic field is to the stirring action of metal bath, make it produce strong convection current, this convection current meeting is the even temperature field in the metal bath and reduce the degree of depth in the liquid cave molten bath in effectively, thereby has improved the internal soundness of ingot casting 10 and reduced the incidence of crackle.Induction coil 4 is built in the crystallizer, makes its distance from melt 9 nearer, has improved the utilization rate of electromagnetic field in the casting process.Crystallizer overcoat 5 usefulness magnetic materials are made, so not only can make the electromagnetic field intensity in the melt increase by 30%, and can effectively improve electromagnetic field distribution, the electromagnetic field intensity maximum is moved to the crystallizer exit, strengthened stirring capacity, better improved the generation of the internal performance and the inhibition crackle of ingot casting at the electromagnetic field of solidification front.
Claims (1)
1, a kind of magnetic-field-enhanced alumium alloy low frequency electromagnetic casting crystallizer, comprise interior cover, overcoat, water seam plate, water fender, induction coil, the outside of cover in overcoat is enclosed in, be equipped with water seam plate on the overcoat base plate, the other end of water seam plate and an end face of interior cover form hydrophthalmia, be provided with water fender between water seam plate and the interior cover top board, it is characterized in that induction coil is fixed on by overlapping in the crystallizer with screw rod and insulating materials, in the water cavity that water seam plate and crystallizer overcoat are surrounded, constitute field generator for magnetic by induction coil with the overcoat that magnetic material is made, in induction coil, be connected with low frequency ac.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201460865U CN2865934Y (en) | 2005-12-30 | 2005-12-30 | Magnetic field reinforcing aluminium alloy low-frequency electromagnetic casting crystallizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201460865U CN2865934Y (en) | 2005-12-30 | 2005-12-30 | Magnetic field reinforcing aluminium alloy low-frequency electromagnetic casting crystallizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2865934Y true CN2865934Y (en) | 2007-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005201460865U Expired - Fee Related CN2865934Y (en) | 2005-12-30 | 2005-12-30 | Magnetic field reinforcing aluminium alloy low-frequency electromagnetic casting crystallizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2865934Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972839A (en) * | 2010-11-12 | 2011-02-16 | 西南铝业（集团）有限责任公司 | Aiding method for solving subsurface cracks of large-size cast ingots and crystallizer |
| CN103068504A (en) * | 2010-08-05 | 2013-04-24 | 丹尼尔和科菲森梅克尼齐有限公司 | Process and apparatus for controlling the flows of liquid metal in a crystallizer for the continuous casting of thin flat slabs |
| CN101717905B (en) * | 2009-12-04 | 2013-11-20 | 江苏大学 | Method and device for preparing high-performance aluminum-base composite material under the action of pulsed magnetic field |
| CN108543921A (en) * | 2018-04-23 | 2018-09-18 | 东北大学 | Strong shear is with electromagnetic field coordinate system for the device and method of big specification homogeneous ingot casting |
| CN110076305A (en) * | 2019-05-29 | 2019-08-02 | 东北大学 | A kind of non ferrous metal and their alloy electromagnetism D.C.casting method |
| CN110193588A (en) * | 2019-07-10 | 2019-09-03 | 东北大学 | A kind of aluminium lithium alloy low-frequency square-wave electromagnetic continuous casting machine and method |
| CN111644583A (en) * | 2020-05-26 | 2020-09-11 | 中南大学 | Aluminum alloy ingot and liquid core magnetic flow casting method for improving component uniformity of aluminum alloy ingot |
-
2005
- 2005-12-30 CN CNU2005201460865U patent/CN2865934Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717905B (en) * | 2009-12-04 | 2013-11-20 | 江苏大学 | Method and device for preparing high-performance aluminum-base composite material under the action of pulsed magnetic field |
| CN103068504A (en) * | 2010-08-05 | 2013-04-24 | 丹尼尔和科菲森梅克尼齐有限公司 | Process and apparatus for controlling the flows of liquid metal in a crystallizer for the continuous casting of thin flat slabs |
| CN101972839A (en) * | 2010-11-12 | 2011-02-16 | 西南铝业（集团）有限责任公司 | Aiding method for solving subsurface cracks of large-size cast ingots and crystallizer |
| CN108543921A (en) * | 2018-04-23 | 2018-09-18 | 东北大学 | Strong shear is with electromagnetic field coordinate system for the device and method of big specification homogeneous ingot casting |
| CN110076305A (en) * | 2019-05-29 | 2019-08-02 | 东北大学 | A kind of non ferrous metal and their alloy electromagnetism D.C.casting method |
| CN110193588A (en) * | 2019-07-10 | 2019-09-03 | 东北大学 | A kind of aluminium lithium alloy low-frequency square-wave electromagnetic continuous casting machine and method |
| CN111644583A (en) * | 2020-05-26 | 2020-09-11 | 中南大学 | Aluminum alloy ingot and liquid core magnetic flow casting method for improving component uniformity of aluminum alloy ingot |
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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: 20070207 Termination date: 20100201 |