CN1276811C - Water seam-split body internal water cooling type flexible contact electromagnetic continuous casting crystallizer - Google Patents
Water seam-split body internal water cooling type flexible contact electromagnetic continuous casting crystallizer Download PDFInfo
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- CN1276811C CN1276811C CN 200410021566 CN200410021566A CN1276811C CN 1276811 C CN1276811 C CN 1276811C CN 200410021566 CN200410021566 CN 200410021566 CN 200410021566 A CN200410021566 A CN 200410021566A CN 1276811 C CN1276811 C CN 1276811C
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Abstract
The present invention relates to a water seam-split body internal water cooling type flexible contact electromagnetic continuous casting crystallizer which is mainly composed of an upper flange, a lower flange, a coil, a crystallizer sleeve pipe, a cooling water jacket, a cooling water pipe, a connecting piece and a lifting device. The present invention is characterized in that the upper part of the crystallizer sleeve pipe uses a local middle joint-cutting structure; the cooling water pipe is arranged in the split body, and a water seam structure is formed between the lower part of the crystallizer sleeve pipe and the cooling water jacket. Thereby, a water cooling combined cooling means is formed in the water seam and the split body, which ensures the continuity of the cooling effect. The high-frequency coil is arranged near the center of the joint-cutting position of the crystallizer sleeve pipe. The new structure can ensure that uniform and good magnetic permeability is formed near a metal meniscus, has excellent cooling effect on liquid metal and reaches flexible contact electromagnetic continuous casting needs. Moreover, the crystallizer has enough strength, higher heat-resisting performance and deformation-resisting performance and easy processing. The flexible contact electromagnetic continuous casting of round billets and square billets of high melting point metals of steel, etc. can be realized. The present invention can be applied to practical production.
Description
Technical field
The present invention relates to a kind of metallurgical continuous casting crystallizer, particularly a kind of water seam-split body internal water cooling soft-contact electromagnetic continuous casting crystallizer.
Background technology
At present, the electromagnetic casting process of aluminium and copper reaches its maturity, compares with traditional direct casting, and cc billet surface quality is significantly improved.Because the density of steel is big, required electromagnetic push is big; Electrical conductivity is little, and the electromagnetic push of generation is little; Thermal conductivity factor is low, fusing point is high and pulling rate is very fast, is unfavorable for that the base shell generates, so steel is difficult to realize fully no mould continuous casting electromagnetic.France scholar Ch.Vives is subjected to the electromagnetic casting technology of aluminium and the inspiration of cold crucible technology, proposition applies ac magnetic field outside continuous cast mold, utilize electromagnetic force to make molten steel and crystallizer under " the soft contact (Soft-Contact) " condition, realize the casting method of solidifying, be referred to as soft-contact electromagnetic continuous casting.But this technology has proposed very high requirement to continuous cast mold.At first, crystallizer will have enough intensity, does not deform easily; Simultaneously, crystallizer will have favorable cooling effect, guarantees that bulge bleedout accident does not take place strand.Therefore, can the soft-contact electromagnetic continuous casting technology of steel be able to successful Application in industrial production, and key depends on whether crystallizer can satisfy above-mentioned requirements simultaneously.
The crystallizer that is used for the soft-contact electromagnetic casting of steel is compared with traditional crystallizer, has adopted different materials and special construction.At present, the soft-contact electromagnetic continuous casting crystallizer of steel can be divided into two kinds of cutting seam type soft-contact mould and gapless soft-contact moulds by the difference of its structure.The cutting seam type soft-contact mould generally adopts straight-through structure, constitutes by joint-cutting between body, induction coil, split body and split body etc., as Chinese patent application number: 96222452.9, inventor: Ren Zhongming, Zhou Yueming, Deng Kang, Jiang Guochang; Denomination of invention is a metal soft-contact electromagnetic continuous casting crystallizer, is exactly this structure.Though the cutting seam type soft-contact mould has improved magnetic field penetration, greatly improved slab quality, still there are some defectives in it.As: (1) joint-cutting adopts straight-through structure up and down, has destroyed the globality of crystallizer, has reduced the bulk strength of crystallizer, for industrial production has been brought destabilizing factor.(2) owing to the existence of joint-cutting, each metal lamella is separate, causes the cooling water circuit system complexity, difficult design.(3) crystallizer internal magnetic field skewness directly has influence on the improvement of slab quality.Although the scientific worker has carried out lot of experiments to above-mentioned cutting seam type crystallizer, still the cutting seam type crystallizer is not successfully applied to the industrial relevant report of continuous casting electromagnetic of steel at present.The gapless soft-contact mould has following two kinds of modular designs at present: (1) sectional seamless soft-contact mould adopts segmentation structure, and wherein crystallizer top is made by the non-magnetic stainless steel of high resistivity, and the bottom is made by the copper material of high conductivity.The sectional seamless soft-contact mould is compared with common copper crystallizer, and the magnetic flux density that sees through crystallizer wall is original 1.8 times, and the electromagnetic confinement power that in-mold molten steel is produced is original 3.4 times.Its disadvantage is because two sections adopt the different material of character, and both link up difficulty smoothly in the junction, and, because the difference of thermal coefficient of expansion, under the effect of elevated temperature heat stress, this defective shows more obviously, still can't use in actual metallurgical production.(2) design feature of the seamless soft-contact mould of monoblock type is that the cutting seam type soft-contact mould is improved, and fills copper (copper alloy) powder of high resistivity between the copper material lamella of high conductivity, processes through HIP sintering to be one.It is largely increased crystallizer intensity, and the layout of chilled(cooling) water return (CWR) is oversimplified, and compares with fine copper matter crystallizer, and its magnetic field magnetic susceptibility can improve 3 times, and the crystallizer internal magnetic field distributes more even.Yet the crystallizer of this design still fails to solve fully a difficult problem that significantly improves magnetic susceptibility and magnetic field uniformization, and must overcome its difficulty on Material Selection, preparation technology.Above-mentioned crystallizer all is in the developmental research stage at present, all is not applied to actual industrial production.
Summary of the invention
The objective of the invention is in order to overcome the defective that above-mentioned known technology exists, and based on traditional continuous cast mold and the design of cutting seam type structure of mould, a kind of novel water seam-split body internal water cooling soft-contact electromagnetic continuous casting joint-cutting crystallizer is provided, make crystallizer both have evenly good magnetic permeability, simultaneously can make crystallizer that enough intensity and higher heat-resistant deforming performance are arranged again, can also make liquid metal have favorable cooling effect, finally reach the purpose that can be applicable to actual production.
Water seam-split body internal water cooling soft-contact electromagnetic continuous casting crystallizer of the present invention, mainly by upper flange, lower flange, coil, the crystallizer sleeve pipe, cooling jacket, housing, connector, cooling water pipe, import and export water tank, joint-cutting, split body, the guide roller bearing, hanging apparatus constitutes, on main points crystallizer sleeve pipe and the housing, following two ends are fixed by upper flange and lower flange respectively, local middle kerf structure is adopted on crystallizer sleeve pipe top, in housing, joint-cutting place around crystallizer sleeve pipe top is equipped with coil, coil supports by bracing frame, cooling jacket is between shell body and the crystallization sleeve outer wall, the bottom is connected with shell body by connector, be provided with cooling water pipe near the crystallizer sleeve pipe upper meniscus the split body, cooling water pipe links to each other with delivery port by water tank, form the water crack structure between crystallizer sleeve pipe bottom and cooling jacket, water inlet links to each other with the water seam by the import water tank.
In the set joint-cutting position of crystallizer sleeve pipe is on crystallizer top, with upper/lower positions, adopts local middle kerf structure apart from its top 0～30mm.This kerf structure is that 0.1～3mm is wide, and 80～300mm is long, fills mica sheet or fluid sealant insulating materials in the joint-cutting.
The cooling water pipe position that is provided with in the described split body is near crystallizer sleeve pipe upper meniscus.This cooling water pipe is chosen and is of a size of Φ 5～25mm.About split body quantity and length is to change according to the strand size is different.
The water seam that forms between crystallizer sleeve pipe bottom and cooling jacket is chosen 1～7mm.The type of cooling adopts the mode that water-cooled combines in water seam and the split body thus, and the copper pipe to the upper and lower of crystallizer cools off the continuity of solidifying and guarantee cooling effect of promotion molten steel respectively.Water tank by import and export connects water inlet, water seam and split body water pipe, delivery port respectively, thereby guarantees that hydraulic pressure is even.
Above-mentioned crystallizer sleeve pipe requires difference according to strand, can be cylindrical or square.According to producing needs, in crystallizer electromagnetic mixing apparatus can be installed simultaneously, be 100～250KW as the rotating electromagnetic mixing parametric, 200～500A, 150～400V, 1～50HZ; The center at the joint-cutting place on the crystallizer sleeve pipe is equipped with high frequency coil, and coil height is adjustable according to production requirement.
The present invention compared with the prior art has tangible advantage and effect.Owing to taked local middle kerf structure on crystallizer sleeve pipe top, can guarantee near the metal meniscus, to have even and good magnetic permeability, can make crystallizer that enough intensity and higher heat-resistant deforming performance are arranged again simultaneously; The present invention adopts the type of cooling that water-cooled combines in water seam and the split body again in addition, makes crystallizer liquid towards metal have favorable cooling effect, reaches the needs of soft-contact electromagnetic continuous casting.In addition, consider the production cost of crystallizer, the kerf structure that is adopted and the type of cooling guarantee that the crystallizer sleeve pipe is easy to processing, moulding.This crystallizer can be realized the soft-contact electromagnetic continuous casting of round base, square billet even the slab of refractory metals such as steel, effectively improves metal slab surface quality and productivity ratio.This shows that the present invention is rational in infrastructure, processing cost is low, compared with the prior art has clear superiority, can be applicable to actual production fully.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural profile view of round mold sleeve pipe;
Fig. 3 is the A-A profile of Fig. 2;
Among Fig. 1,2,3: 1 upper flange, 2 lower flanges, 3 coils, 4 bracing frames, 5 crystallizer sleeve pipes, 6 cooling jackets, 7 housings, 8 connectors, 9 meniscus, 10 hanging apparatus, 11 guide roller bearings, 12 water inlets, 13 delivery ports, 14 cooling water pipes, 15 set bolts, nut, 16 water seam, 17 import water tanks, 18 outlet water tanks, 19 joint-cuttings, 20 split bodies, 21 insulating materials.
The specific embodiment
Example 1, referring to Fig. 1,2,3, crystallizer of the present invention has a crystallizer sleeve pipe 5, diameter is the round mold sleeve pipe of 178mm, adopt the phosphorized copper material to make, sentence down far from top 10mm on crystallizer sleeve pipe top, has long 150mm, the middle kerf structure of wide 0.2mm, dosed the insulating materials mica sheet in the joint-cutting 19, totally 32 of formed split bodies 20 are provided with the cooling water pipe 14 of Φ 8mm in it; The upper/lower terminal of crystallizer sleeve pipe 5 and housing 7 is fixed by upper flange 1 and lower flange 2 respectively, in housing 7, center around crystallizer sleeve pipe 5 top joint-cuttings 19 places is equipped with high frequency coil 3, and coil 3 is installed on the horizontal plane on cooling jacket 6 tops by bracing frame 4.Cooling jacket 6 is between shell body 7 and crystallization sleeve pipe 5 outer walls, and the bottom is connected with shell body 7 by connector 8, behind the filling seal, compresses with pressing plate above, and fixes with nut between termination, upper water plane and crystallizer sleeve pipe 5 walls.Cool off by the water seam 16 of cooling jacket 6 and 5 formation of crystallizer sleeve pipe crystallizer sleeve pipe 5 bottoms, and the water seam is selected 4mm for use.Undertaken cooling off in the split body by the cooling water pipe 14 that is evenly distributed in the split body 20 near crystallizer sleeve pipe 5 upper meniscus 9.Water inlet 12 links to each other with water seam 16 by import water tank 17; Delivery port 13 links to each other with the outlet water tank 18 of cooling water pipe 14 upper ends.A pair of hanging apparatus 10, be welded on housing 7 outer walls, its below is one and is used for crystallizer is assemblied in crystallizer support upper fixing element 15, is used as and guide roller bearing 11 that the backing roll that leads is complementary is assemblied in the crystallizer below.
Example 2, other structure are all identical with example 1, different is that crystallizer sleeve pipe 5 adopts the silver-bearing copper material to make, crystallizer sleeve pipe 5 tops are sentenced down far from top 30mm and are had long 80mm, the middle kerf structure of wide 3mm, and dosed the insulating materials fluid sealant in the joint-cutting 19, totally 16 of formed split bodies 20 are provided with the cooling water pipe 14 of Φ 25mm in it.The water seam of cooling jacket 6 and 5 formation of crystallizer sleeve pipe is 7mm.
Example 3, other structure are identical with example 1, and different is 100 * 100mm of choosing
2Square blank crystallizer sleeve pipe 5, adopt chromium zirconium copper to become, crystallizer sleeve pipe 5 tops are sentenced down far from top 20mm and are had long 300mm, the middle kerf structure of wide 0.1mm, and dose the mica sheet of insulating materials in the joint-cutting 19, totally 24 of formed split bodies 20 are provided with the cooling water pipe 14 of Φ 5mm in it, the water seam of cooling jacket 6 and 5 formation of crystallizer sleeve pipe is 1mm.
Example 4, other structure are identical with example 1, different is the round mold sleeve pipe 5 of choosing diameter of phi 100, adopt the silver-bearing copper material to make, under sentencing, top 2mm has long 200mm on crystallizer sleeve pipe 5 tops, the middle kerf structure of wide 0.3mm, and dose the mica sheet of insulating materials in the joint-cutting 19, totally 24 of formed split bodies 20, be provided with the cooling water pipe 14 of Φ 7mm in it, the water seam of cooling jacket 6 and 5 formation of crystallizer sleeve pipe is 5mm.
Claims (7)
1, a kind of water seam-split body internal water cooling soft-contact electromagnetic continuous casting crystallizer, mainly by upper flange, lower flange, coil, the crystallizer sleeve pipe, cooling jacket, housing, connector, cooling water pipe, hanging apparatus constitutes, it is characterized in that crystallizer sleeve pipe and housing on, following two ends are fixed by upper flange and lower flange respectively, local middle kerf structure is adopted on crystallizer sleeve pipe top, joint-cutting place around crystallizer sleeve pipe top in housing is equipped with coil, coil supports by bracing frame, cooling jacket is between shell body and the crystallizer sleeve outer wall, the bottom is connected with shell body by connector, be provided with cooling water pipe near the crystallizer sleeve pipe upper meniscus the split body, cooling water pipe links to each other with delivery port by water tank, form the water crack structure between crystallizer sleeve pipe bottom and cooling jacket, water inlet links to each other with the water seam by the import water tank.
2,, it is characterized in that on crystallizer sleeve pipe top far from adopting local middle kerf structure below the 0～30mm of top according to the described a kind of water seam-split body internal water cooling soft-contact electromagnetic continuous casting crystallizer of claim 1.
3, according to claim 1 or 2 described a kind of water seam-split body internal water cooling soft-contact electromagnetic continuous casting crystallizers, it is characterized in that described kerf structure is that 0.1～3mm is wide, 80～300mm is long, is filled with mica sheet or fluid sealant insulating materials in the joint-cutting.
4,, it is characterized in that being provided with in the split body cooling water pipe of Φ 5～25mm according to the described a kind of water seam-split body internal water cooling soft-contact electromagnetic continuous casting crystallizer of claim 1.
5, according to the described a kind of water seam-split body internal water cooling soft-contact electromagnetic continuous casting crystallizer of claim 1, it is characterized in that the center at the joint-cutting place on the crystallizer sleeve pipe is equipped with high frequency coil, coil height is adjustable according to production requirement.
6, according to claim 1,2 or 5 described a kind of water seam-split body internal water cooling soft-contact electromagnetic continuous casting crystallizers, it is characterized in that the crystallizer sleeve pipe can be cylindrical also can be square, according to producing needs, in the crystallizer electromagnetic mixing apparatus can be installed.
7, according to the described a kind of water seam-split body internal water cooling soft-contact electromagnetic continuous casting crystallizer of claim 1, the water seam that it is characterized in that forming between crystallizer sleeve pipe bottom and cooling jacket is chosen 1～7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410021566 CN1276811C (en) | 2004-07-28 | 2004-07-28 | Water seam-split body internal water cooling type flexible contact electromagnetic continuous casting crystallizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410021566 CN1276811C (en) | 2004-07-28 | 2004-07-28 | Water seam-split body internal water cooling type flexible contact electromagnetic continuous casting crystallizer |
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| Publication Number | Publication Date |
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| CN1597183A CN1597183A (en) | 2005-03-23 |
| CN1276811C true CN1276811C (en) | 2006-09-27 |
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| CN 200410021566 Expired - Fee Related CN1276811C (en) | 2004-07-28 | 2004-07-28 | Water seam-split body internal water cooling type flexible contact electromagnetic continuous casting crystallizer |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101155653B (en) * | 2005-04-11 | 2011-11-16 | 日立金属株式会社 | Process for the casting of molten alloy |
| CN102371348B (en) * | 2010-08-26 | 2013-04-03 | 宝山钢铁股份有限公司 | Electromagnetic soft contact continuous casting crystallizer |
| JP6016818B2 (en) * | 2011-03-14 | 2016-10-26 | コンサーク コーポレイションＣｏｎｓａｒｃ Ｃｏｒｐｏｒａｔｉｏｎ | Open bottom conductive cooled crucible for ingot electromagnetic casting. |
| CN103128266A (en) * | 2011-11-24 | 2013-06-05 | 辽宁科技大学 | Device using electromagnetic induction water-cooled kerf type crystallizer as ingot mold |
| CN104209483B (en) * | 2014-09-28 | 2017-01-18 | 哈尔滨工业大学 | Melting and electromagnetic constraint shaping system capable of performing efficient electro-thermal conversion |
| CN104741534B (en) * | 2015-04-06 | 2017-12-22 | 丹阳恒庆复合材料科技有限公司 | A kind of adjustable roll shaft casting mould and manufacturing process |
| CN105618699A (en) * | 2016-03-16 | 2016-06-01 | 安徽鑫旭新材料股份有限公司 | Cooling water system of up-casting continuous casting machine for copper materials |
| CN108393444B (en) * | 2018-04-23 | 2024-03-22 | 宣化钢铁集团有限责任公司 | Independent cooling external water direct cooling type electromagnetic stirring crystallizer |
| CN110405170B (en) * | 2019-08-28 | 2021-03-16 | 东北大学 | Low-cooling electromagnetic semi-continuous casting device and method |
| CN110923691B (en) * | 2019-11-19 | 2022-01-07 | 上海大学 | Soft contact electromagnetic continuous casting crystallizer joint cutting composite sealing method |
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- 2004-07-28 CN CN 200410021566 patent/CN1276811C/en not_active Expired - Fee Related
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