CN202701321U - Arc-shaped narrow surface crystallizer - Google Patents
Arc-shaped narrow surface crystallizer Download PDFInfo
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- CN202701321U CN202701321U CN 201220229942 CN201220229942U CN202701321U CN 202701321 U CN202701321 U CN 202701321U CN 201220229942 CN201220229942 CN 201220229942 CN 201220229942 U CN201220229942 U CN 201220229942U CN 202701321 U CN202701321 U CN 202701321U
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Abstract
An arc-shaped narrow surface crystallizer is disclosed and the crystallizer belongs to the continuous casting technology field. The arc-shaped narrow surface crystallizer comprises wide surface copper plate support and adjustment devices, wide surface copper plates, narrow surface copper plate support and adjustment devices, narrow surface copper plates, wide surface cooling water inlets, wide surface cooling water outlets, narrow surface cooling water inlets, and narrow surface cooling water outlets, wherein two narrow surface copper plates (4) are arranged between two wide surface copper plates (2), the two narrow surface copper plates and the two wide surface copper plates are respectively fixed through the wide surface copper plate support and adjustment devices (1) and the narrow surface copper plate support and adjustment devices, and an empty cavity (9) of the arc-shaped narrow surface crystallizer is enclosed by the two narrow surface copper plates and the two wide surface copper plates. The arc-shaped narrow surface crystallizer is advantaged by elimination of obvious angle part shapes of the casting blank narrow surfaces, improved structure of the narrow surface blank shell crystal, effectively improved temperature difference among various parts of the casting blank when the casting blank is straightened and rolled, realized traceless lifting operation in casting blank allocation and transport processes, and lowered edge part defects after hot rolling processes.
Description
Technical field
The utility model belongs to the continuous casting technology field, and a kind of arc narrow panels billet crystallizer particularly is provided.Be applied to the moulding by casting process of molten steel and other liquid metal.
Background technology
Take the continuous casting production process of iron and steel as background the utility model is introduced.Continuous casting technology is born in 1840, is widely used in steel industry in nineteen sixty, surpasses in the world 88% crude steel by 2002 and adopts continuous casting manufacturing technique to obtain.
The copper coin that plate slab crystallizer adopts inner surface to be the plane is usually made, and crystallizer is many to be comprised of four copper coins with water-cooled, and crystallizer internal cavity is generally rectangle.Its Main Function is that therein solidifiable of molten steel becomes specific shape.Copper coin is in time derived the molten steel heat in the molten steel solidification process, and the non-metallic inclusion in the Mold floats and protected slag absorption removal.The performance of crystallizer all plays a very important role production capacity and the slab quality of conticaster.
Corner crack is one of common major defect of continuous casting billet quality, and is very large to the normal Influence of production of continuous casting.Eliminate this class defective and depend on to a great extent control to strand bight cooling and temperature, conventional panels billet crystallizer inner chamber is rectangle, and four angles of strand are 90 °, easily produce internal stress in the strand scull process.Go out in the process of crystallizer continuation cooling at strand, owing to the difference of conducting heat, the bight very easily produced cold, and it is strong proof in the middle color in strand four sides that strand goes out withdrawal straightening machine bight color obviously dark.The bight is excessively cold, and temperature is low, causes strand Plasticity Decreasing in the aligning process, is the one of the main reasons of strand corner crack.The existence of corner crack has increased the production cost of strand.
Slab is in the operation of rolling, because the bight is conducted heat fast, cause bight temperature when rolling significantly to be lower than the temperature of central area, strand four sides, often therefore produce with splitting equilateral defective in limit section fine rule and the limit of steel, impact causes the increase with the steel production cost with the lumber recovery of steel.
In the slab handling process, the clamp impression of leptoprosopy and scuffing etc. also are one of reasons of side defects of strip steel.
More than be that traditional crystallizer uses the some shortcomings that expose.There is recently chamfer crystallizer on probation in factory, four original right angles of slab, becomes eight obtuse angles.To improving the bight temperature, slow down the horizontal strong certain effect that has in bight.Alleviated to a certain extent the low problem of strand bight temperature, but this crystallizer leptoprosopy still there is obvious turning, limited to the contribution that promotes the bight temperature.And occur after the chink when strand, have to adopt the method for flame cutting to carry out corner cut and process, very large on the production efficiency impact, the burden that has increased to manufacturing enterprise.Therefore, improving the condensation structure of casting leptoprosopy and the bight temperature of strand aligning and open rolling is the key that solves the strand chink, also is the useful means that reduce side defects of strip steel.
Summary of the invention
The purpose of this utility model is to provide a kind of arc narrow panels billet crystallizer, can eliminate the obvious corner shape of strand leptoprosopy, has improved the structure of leptoprosopy base shell crystallization, the temperature difference at each position of strand when Effective Raise aligning and open rolling.
The utility model patent is designed to the leptoprosopy of plate slab crystallizer the continuous curve surface shapes such as the arc surface, parabola face of different curvature, has solved the low problem of strand bight temperature on to greatest extent.The curved design of leptoprosopy can reduce the defectives such as limit section fine rule that the operations of rolling such as pipeline and high-strength steel occur.The utility model can be realized the seamless handling of strand allocation and transportation process, has reduced the edge fault of hot rolling.
The utility model comprises wide copper coin supporting and regulating device 1, wide copper coin 2, narrow copper plate supporting and regulating device 3, narrow copper plate 4, wide coolant intake 5, wide cooling water outlet mouth 6, leptoprosopy coolant intake 7, leptoprosopy cooling water outlet mouth 8; As shown in Figure 1.
Two narrow copper plates 4 are placed between two wide copper coins 2, fixing by wide copper coin supporting and regulating device 1 and narrow copper plate supporting and regulating device 3 respectively, surround arc leptoprosopy crystallizer cavity 9, by cooling water wide of crystallizer and narrow copper plate are cooled off when watering steel.
The inner surface of wide copper coin 2 is the plane; The inner surface of narrow copper plate 4 is continuous curve surface, and the narrow copper plate inner surface is the full curves such as the circular arc of different curvature or parabola along the vertical cross-section of the base shell direction of motion.
Internal surface of crystallizer is that wide the copper coin 2 on plane is provided with wide coolant intake 5, wide cooling water outlet mouth 6; Internal surface of crystallizer is that the narrow copper plate 4 of continuous curve surface is provided with leptoprosopy coolant intake 7, leptoprosopy cooling water outlet mouth 8.
Wide copper coin and narrow copper plate inner surface adopt nickel plating or chromium plating to process.
The back draught (0-1.5%) of wide copper coin and narrow copper plate can be regulated according to different steel grades.
Wide copper coin and narrow copper plate are 0.6-1.5 rice along the length of throwing direction.
The utility model is applicable to copper, aluminium, and the continuous pouring of the non-ferrous metal liquids such as magnesium, and other might continuous casting or become solid-state process by liquid state; Be applicable to large production or laboratory experiment.
According to above design feature, in the use procedure, the optimization of external shape, strand leptoprosopy internal crystallization structure is optimized.Its advantage is:
(1) compares with adopting traditional crystallizer, after using the utility model, the obvious corner shape of strand leptoprosopy reduces to greatest extent, and the significant difference of each position temperature of strand reduces, the minimum temperature at each position obviously raises during the strand aligning, effectively reduces corner crack;
(2) compare with adopting traditional crystallizer, behind application the utility model, the internal crystallization of strand leptoprosopy cooling procedure is organized more evenly, internal stress reduces.
(3) compare with adopting traditional crystallizer, behind application the utility model, can realize the seamless handling of strand, thoroughly eliminate the defectives such as the strand scuffing that leptoprosopy produces in the handling process and dent.
(4) compare with adopting traditional crystallizer, use the utility model after because the improvement of strand internal crystallization structure and the elimination of strand leptoprosopy blemish, operation of rolling limit is split with the problem such as limit section fine rule and is reduced.
(5) using method of the using method of leptoprosopy curved mould and traditional crystallizer is basically identical.
Description of drawings
Fig. 1 is arc leptoprosopy crystallizer throwing vertical direction generalized section.Wherein, wide copper coin supporting and regulating device 1, wide copper coin 2, narrow copper plate supporting and regulating device 3, narrow copper plate 4, wide coolant intake 5, wide cooling water outlet mouth 6, leptoprosopy coolant intake 7, leptoprosopy cooling water outlet mouth 8, arc leptoprosopy crystallizer cavity 9.
Fig. 2 is arc leptoprosopy crystallizer side schematic view.
The specific embodiment
The utility model comprises wide copper coin supporting and regulating device 1, wide copper coin 2, narrow copper plate supporting and regulating device 3, narrow copper plate 4, wide coolant intake 5, wide cooling water outlet mouth 6, leptoprosopy coolant intake 7, leptoprosopy cooling water outlet mouth 8; As shown in Figure 1.
(1) composition of crystallizer cavity: two curved surface shape narrow copper plates are placed between two wide copper coins, are fixed by fixing and Width adjusting device separately respectively.Back draught according to steel grade and the definite crystallizer of adjusting.
(2) inner surface of copper plate of crystallizer carries out nickel plating or chromium plating processing according to different needs.
By cooling water wide of crystallizer and narrow copper plate are cooled off when (3) watering steel.
(4) the sufficient roller profile of crystallizer exit leptoprosopy is corresponding with the leptoprosopy shape, and the curvature of cambered surface will be consistent with leptoprosopy.
Claims (6)
1. arc leptoprosopy crystallizer comprises wide copper coin supporting and regulating device, wide copper coin, narrow copper plate supporting and regulating device, narrow copper plate, wide coolant intake, wide cooling water outlet mouth, leptoprosopy coolant intake, leptoprosopy cooling water outlet mouth;
Two narrow copper plates (4) are placed between two wide the copper coin (2), and are fixing by wide copper coin supporting and regulating device (1) and narrow copper plate supporting and regulating device (3) respectively, surround arc leptoprosopy crystallizer cavity (9).
2. arc leptoprosopy crystallizer according to claim 1 is characterized in that, the inner surface of described wide copper coin (2) is the plane; The inner surface of described narrow copper plate (4) is continuous curve surface, and the narrow copper plate inner surface is circular arc or the parabola full curve of different curvature along the vertical cross-section of the base shell direction of motion.
3. arc leptoprosopy crystallizer according to claim 1 is characterized in that, described wide copper coin (2) is provided with wide coolant intake (5), wide cooling water outlet mouth (6); Described narrow copper plate (4) is provided with leptoprosopy coolant intake (7), leptoprosopy cooling water outlet mouth (8).
4. arc leptoprosopy crystallizer according to claim 1 is characterized in that, described wide copper coin (2) and narrow copper plate (4) inner surface adopt nickel plating or chromium plating to process.
5. arc leptoprosopy crystallizer according to claim 1, the back draught of described wide copper coin (2) and narrow copper plate (4) is 0-1.5%.
6. arc leptoprosopy crystallizer according to claim 1, wide copper coin and narrow copper plate are 0.6-1.5 rice along the length of throwing direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220229942 CN202701321U (en) | 2012-05-21 | 2012-05-21 | Arc-shaped narrow surface crystallizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220229942 CN202701321U (en) | 2012-05-21 | 2012-05-21 | Arc-shaped narrow surface crystallizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202701321U true CN202701321U (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220229942 Expired - Fee Related CN202701321U (en) | 2012-05-21 | 2012-05-21 | Arc-shaped narrow surface crystallizer |
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| CN (1) | CN202701321U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110548839A (en) * | 2019-09-04 | 2019-12-10 | 中冶南方连铸技术工程有限责任公司 | forced cooling crystallizer for slab continuous casting |
-
2012
- 2012-05-21 CN CN 201220229942 patent/CN202701321U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110548839A (en) * | 2019-09-04 | 2019-12-10 | 中冶南方连铸技术工程有限责任公司 | forced cooling crystallizer for slab continuous casting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20160521 |