CN108543922B - Sector section secondary cooling system for recompression of solidification tail end - Google Patents
Sector section secondary cooling system for recompression of solidification tail end Download PDFInfo
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- CN108543922B CN108543922B CN201810720267.6A CN201810720267A CN108543922B CN 108543922 B CN108543922 B CN 108543922B CN 201810720267 A CN201810720267 A CN 201810720267A CN 108543922 B CN108543922 B CN 108543922B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
- B22D11/1246—Nozzles; Spray heads
Abstract
The invention belongs to the technical field of metallurgy, and particularly relates to a continuous casting cooled fan-shaped section secondary cooling system for solidification tail end heavy reduction, which comprises cooling and strong scale-sweeping nozzles, wherein the cooling and strong scale-sweeping nozzles are arranged in a horizontal fan-shaped section of a continuous casting machine and correspond to an outer arc roller section and an inner arc roller section; the cooling nozzles and the strong scale sweeping nozzles which are vertically arranged and correspond to the first roller and the second roller form included angles with the vertical direction. The invention can meet the cooling requirement of the roller of the sector section, is beneficial to keeping the good state of the sector section, prolongs the service life of the sector section, can meet the cooling requirement of the solidification end on the casting blank and the cleaning requirement of the surface iron oxide scale, is beneficial to uniformly cooling the inner arc and the outer arc of the slab, prevents the slab from warping and deforming, and ensures the quality of the continuous casting blank.
Description
Technical Field
The invention belongs to the technical field of metallurgy, and particularly relates to a sector secondary cooling system for continuous casting cooling solidification tail end heavy reduction.
Background
With the rapid development of manufacturing industry and science and technology, higher requirements are put forward on the internal quality of steel, central looseness and central shrinkage are main factors for restricting the internal quality of continuous casting billets, and a solidification tail end heavy pressing technology is put forward for the reasons. The continuous casting solidification tail end heavy pressing technology is characterized in that at the final stage of casting blank solidification, the characteristic that the temperature difference between the surface and the core of a casting blank is large is fully utilized, and the casting blank is pressed with large deformation amount, so that the pressed amount can fully permeate the core of the casting blank, and the process effects of welding, solidification, shrinkage porosity and even core austenite grain refinement are achieved.
The outside cooling mode of outer arc in the horizontal fan-shaped section of traditional conticaster is that the cooling nozzle arranges perpendicularly, and this kind of arrangement can satisfy the cooling requirement of high temperature slab, but is not good to the cooling of fan-shaped section roller itself and the descaling effect on base surface, makes fan-shaped section roller warp under high temperature easily and damages and base surface iron scale pile up, influences the equipment function of the fan-shaped section of conticaster and then influences the quality of continuous casting, also makes fan-shaped section life shorten the increase cost.
At present, the horizontal fan-shaped section outer arc cooling mode of continuous casting machine is pressed down to solidification end again and is that the cooling nozzle arranges at the level between fan-shaped section roller, and the outside cooling mode of fan-shaped section inner arc is that the cooling nozzle arranges perpendicularly between fan-shaped section roller, this kind of cooling that can fine satisfy fan-shaped section roller itself of arranging, nevertheless can't continue to cool off and sweep the scale by force the continuous casting billet, it is inhomogeneous to lead to the cooling of continuous casting billet inner and outer arc, the buckling deformation takes place for the slab, continuous casting billet surface scale piles up, influence the transportation of casting billet on the roll table and damage roll table equipment.
The Chinese utility model patent (No. CN202006272U) discloses a cooling device for horizontal sector section of continuous casting machine, which comprises cooling nozzles arranged on the outer arc roller section and the inner arc roller section in the horizontal sector section of continuous casting machine, wherein the cooling nozzles of the outer arc roller section are distributed in a horizontal and vertical staggered mode, the horizontally arranged cooling nozzles are arranged oppositely from two ends between adjacent outer arc rollers, and the vertically arranged cooling nozzles are arranged upwards from between adjacent outer arc rollers; the cooling nozzles of the inner arc roller sections are inverted Y-shaped with the lower ends branched and are arranged between the adjacent inner arc rollers, and the two branch nozzles of the inverted Y-shaped are respectively opposite to the two adjacent inner arc rollers. The disadvantages are that: the uneven heating of the casting blank and the roller can be caused, and the edge of the casting blank is cracked and warped and deformed. In addition, because the horizontally arranged nozzles have no inclination angle, the vertically arranged nozzles cannot effectively remove the iron oxide scales gathered in the middle, so that the iron oxide scales on the surface of the casting blank are accumulated, and the transportation of the casting blank on a roller way and the damage to roller way equipment are influenced.
Disclosure of Invention
In view of the problems of the prior art, the present invention aims to: the fan-shaped section secondary cooling system for the solidification tail end heavy reduction can effectively avoid slab buckling deformation and continuous casting billet surface iron oxide scale accumulation.
The technical scheme of the invention is as follows:
a sector-shaped section secondary cooling system for solidification tail end heavy reduction comprises cooling and scale-sweeping nozzles which are arranged in a horizontal sector section of a continuous casting machine and correspond to an outer arc roller section and an inner arc roller section, wherein the inner arc roller section corresponds to the outer arc roller section up and down; the cooling nozzles and the strong scale sweeping nozzles corresponding to the inner arc roller section and the outer arc roller section are distributed in a horizontal and vertical staggered mode, wherein: the horizontally arranged nozzles are oppositely arranged at two ends between the first roller and the second roller along the axial direction of the roller section, and the nozzles form an included angle with the horizontal plane; the vertically arranged nozzles are divided into cooling nozzles and strong scale sweeping nozzles, and the cooling nozzles and the strong scale sweeping nozzles corresponding to the first roller and the second roller form included angles with the vertical direction.
The solidification tail end is heavily pressed down and is used sector section secondary cooling system, in the inner arc roller section, the horizontal nozzle is formed between the first roller and the second roller, two ends of the V-shaped groove positioned at the lower part are oppositely arranged along the axial direction of the roller section, the horizontal nozzle and the horizontal plane form an included angle of α, 2 degrees is larger than or equal to α degrees and smaller than or equal to 5 degrees, and the outlet of the horizontal nozzle is the lower surface of the upward and directed inner arc roller section.
The fan-shaped section secondary cooling system for the solidification tail end heavy pressing comprises an inner arc roller section, wherein nozzles which are vertically arranged are divided into vertical cooling nozzles, vertical cooling nozzles with inclination angles and strong scale sweeping nozzles, at least two cooling nozzles are arranged between adjacent inner arc roller sections, the cooling nozzles are arranged above the adjacent inner arc roller sections at intervals, and the vertical cooling nozzles with inclination angles and the strong scale sweeping nozzles are arranged above a position between a first roller and a second roller.
In the solidification tail end heavy pressing fan-shaped section secondary cooling system, in the outer arc roller section, two ends of a V-shaped groove which is formed between a first roller and a second roller and is positioned at the upper part are oppositely arranged along the axial direction of the roller section, an included angle of α is formed between the transverse nozzle and the horizontal plane, the included angle is more than or equal to 2 degrees and less than or equal to α degrees and less than or equal to 5 degrees, and the outlet of the transverse nozzle is the upper surface which is downward and points to the outer arc roller section.
The fan-shaped section secondary cooling system for the solidification tail end heavy pressing comprises an outer arc roller section, wherein nozzles which are vertically arranged are divided into vertical cooling nozzles, vertical cooling nozzles with inclination angles and strong scale sweeping nozzles, at least two cooling nozzles are arranged between adjacent outer arc roller sections, the cooling nozzles are arranged below the adjacent outer arc roller sections at intervals, and the vertical cooling nozzles with inclination angles and the strong scale sweeping nozzles are arranged below the first roller and the second roller.
The fan-shaped section secondary cooling system for the heavy pressing of the solidification tail end is provided with two inclined angle vertical cooling nozzles and four strong scale sweeping nozzles, each inclined angle vertical cooling nozzle is positioned between the two strong scale sweeping nozzles to form one group, the two groups are formed, each group of three nozzles is inclined outwards, and the inclined angle is not less than 17 degrees and not more than β degrees and not more than 20 degrees.
The solidification end is heavily pressed down and is used fan-shaped section secondary cooling system, the external diameter of first roller is greater than the external diameter of second roller, has the vertical cooling nozzle of inclination and sweeps the slope of scale nozzle to first roller direction respectively with forcing, inclination: gamma is more than or equal to 4 degrees and less than or equal to 7 degrees.
The fan-shaped section secondary cooling system for the solidification tail end heavy pressing adopts a water-gas mixing nozzle as the cooling nozzle and the strong scale sweeping nozzle of the inner arc roller section and the outer arc roller section.
The water spraying amount of the fan-shaped section secondary cooling system used for the solidification tail end heavy pressing, the cooling nozzle of the outer arc roller section and the strong scale sweeping nozzle is 1-1.5 times that of the cooling nozzle of the inner arc roller section and the strong scale sweeping nozzle.
The water quantity of the fan-shaped section secondary cooling system for the solidification tail end heavy pressing is fixed by the horizontal nozzles arranged in the horizontal direction of the inner arc roller section and the outer arc roller section and the strong scale sweeping nozzles arranged in the vertical direction.
The invention has the advantages and beneficial effects that:
1. by changing the arrangement mode of the conventional cooling nozzles for the sector section under the condition of solidification and heavy reduction, the invention can meet the cooling requirement of the roller of the sector section, is beneficial to keeping the good state of the sector section, prolongs the service life of the sector section, can meet the requirements of the solidification end on cooling of a casting blank and cleaning of surface iron oxide scales, is beneficial to uniformly cooling the inner arc and the outer arc of a slab, prevents the slab from warping and deforming, saves the equipment cost and ensures the quality of the continuous casting slab.
2. According to the fan-shaped section secondary cooling system for heavy pressing at the solidification tail end, the outlets of the transverse cooling nozzles behind the first pair of clamping rollers are obliquely arranged towards the clamping rollers, the arrangement angle is more than or equal to 2 degrees, the iron scales can be effectively cleaned towards two sides, the iron scales are prevented from being accumulated towards the center, and the nozzles which are vertically arranged are assisted to be uniformly cooled. Three of the left sides of the six nozzles arranged behind the first pair of pinch rolls incline leftwards, three of the right sides incline rightwards, and the arrangement angle is larger than or equal to 17 degrees, so that the scales can be better cleaned towards two sides to achieve the purpose of strong scale sweeping. Because the first pair of clamping rollers have size difference with the second pair of clamping rollers, the vertically arranged nozzles are inclined to the first pair of clamping rollers by a certain angle, and the arrangement angle is more than or equal to 4 degrees, so that the aims of cleaning iron scales and cooling casting blanks and rollers can be more effectively fulfilled.
3. Different from the Chinese utility model patent (publication No. CN202006272U), the inverted Y-shaped cooling nozzle is not adopted in the invention, because the heavy-pressing fan-shaped section secondary cooling system is applied to the solidification end period and is different from the conventional horizontal section fan-shaped section, especially the heavy-pressing fan-shaped section, the cleaning of the iron scale and the uniform cooling of the casting blank are emphasized more by the heavy-pressing fan-shaped section secondary cooling system at the solidification end, and the inverted Y-shaped cooling nozzle can not effectively remove the iron scale on the surface of the casting blank and can not uniformly cool the casting blank.
Drawings
FIG. 1 is a perspective view of the inner arc roller section cooling and strong scale-sweeping nozzle distribution of a sector section secondary cooling system under heavy pressure at the solidification end in accordance with one embodiment of the present invention. In the figure, 1 is a strong scale-sweeping nozzle; 2-1 vertical cooling nozzles; 2-2 vertical cooling nozzles with an inclined angle; 3, transversely cooling the nozzle; 4 a first roll; 5 second roll.
FIG. 2 is a perspective view of the outer arc roller section cooling and strong scale-sweeping nozzle distribution of a sector section secondary cooling system under heavy reduction of the solidification end according to another embodiment of the present invention. In the figure, 1 is a strong scale-sweeping nozzle; 2-1 vertical cooling nozzles; 2-2 vertical cooling nozzles with an inclined angle; 3, transversely cooling the nozzle; 4 a first roll; 5 second roll.
Detailed Description
As shown in fig. 1-2, in the implementation process, the second cooling system for a segment used under the condition of freezing end heavy pressure of the invention mainly comprises: and the cooling and scale-sweeping nozzles are arranged in the horizontal fan-shaped section of the continuous casting machine and correspond to the outer arc roller section and the inner arc roller section, and the inner arc roller section and the outer arc roller section correspond to each other up and down.
The invention is explained in more detail below with reference to the figures and examples.
Example 1
As shown in figure 1, in the embodiment, cooling nozzles (a transverse cooling nozzle 3, a vertical cooling nozzle 2-1 and a vertical cooling nozzle 2-2 with an inclined angle) and a strong scale sweeping nozzle 1 of an inner arc roller section are distributed in a horizontally and vertically staggered manner, two ends of a V-shaped groove which is formed between a first roller 4 and a second roller 5 and is positioned at the lower part are oppositely arranged along the axial direction of the roller section, the transverse cooling nozzle 3 forms an included angle α (2 degrees and α degrees and is not more than 5 degrees) with the horizontal plane, an outlet of the transverse cooling nozzle 3 is upward and points to the lower surface of the inner arc roller section, the included angle is adopted to effectively sweep iron scales to two sides and prevent the iron scales from accumulating to the center, the vertically arranged nozzles cool uniformly, the vertically arranged nozzles are divided into the vertical cooling nozzle 2-1, the vertical cooling nozzle 2-2 and the strong scale sweeping nozzle 1, the cooling nozzles between the adjacent inner arc roller sections (the vertical cooling nozzle 2-1 and the vertical cooling nozzle 2-2) have the inclined angle, the strong scale sweeping nozzle 631 and the inclined angle is equal to the right, the inclined angle of the cooling nozzles 2-1, the adjacent inner arc roller section is equal to the right, the inclined angle of the six nozzles (2-1 and the inclined nozzles are uniformly swept nozzle 2-2, the inclined angle, the inclined nozzles positioned between the upper nozzle 2-1) and the vertical nozzle 2, the inclined nozzles positioned between the left nozzle and the right nozzle 2, the six nozzles positioned between the six nozzles and the vertical nozzle and the right nozzle, the inclined nozzles positioned between the six nozzles positioned under the vertical nozzle and the vertical nozzle 2-2 inclined nozzles positioned under the vertical nozzle, the inclined angle of the right nozzle, the inclined angle of.
In addition, the outer diameter of the first roller 4 is larger than that of the second roller 5, the vertical cooling nozzles 2-2 and the strong scale sweeping nozzles 1 are inclined to the first roller 4 by a certain angle respectively, and the inclination angles are as follows: gamma is more than or equal to 4 degrees and less than or equal to 7 degrees, and water flow can be fully contacted with the surface of the casting blank so as to more effectively achieve the aims of cleaning iron scales and cooling the casting blank and the roller.
Wherein, the technical indexes of the strong scale sweeping nozzle are as follows: the water-gas mixing nozzle has the advantages that the water amount of a single nozzle is 2-20L/min, and the strong scale sweeping nozzle has the effect that: the method can effectively remove the iron scale on the surface of the casting blank, prevent the center of the iron scale from being accumulated, and evenly cool the casting blank. The strong scale sweeping nozzles play a main sweeping role, and the horizontal cooling nozzles arranged horizontally play a secondary sweeping role.
Example 2
As shown in figure 2, cooling and scale-sweeping nozzles of an outer arc roller section and inner arc roller sections are basically arranged in the same way, in the embodiment, cooling nozzles (a transverse cooling nozzle 3, a vertical cooling nozzle 2-1 and a vertical cooling nozzle 2-2 with an inclined angle) of the outer arc roller section and scale-sweeping nozzles 1 of the inner arc roller section are distributed in a horizontally and vertically staggered way, the two ends of a V-shaped groove which is formed between a first roller 4 and a second roller 5 and is positioned at the upper part are oppositely arranged along the axial direction of the roller sections, the transverse cooling nozzle 3 and the horizontal plane form a certain included angle α (2 degrees and α degrees and 5 degrees) with each other, an outlet of the transverse cooling nozzle 3 is downward and points to the upper surface of the outer arc roller section, the included angle is used for effectively sweeping iron scales to two sides, preventing the iron scales from accumulating to the center, assisting the vertically arranged nozzles to uniformly cool, the vertically arranged nozzles are divided into the vertical cooling nozzles 2-1, the cooling nozzles 2-2 with the inclined angle and the scale-2 angle, and the scale-1, the cooling nozzles are arranged vertically, the nozzles are arranged at least two groups of the vertical nozzles which are arranged at the same angle, the vertical cooling nozzles are arranged under the condition that the cooling nozzles arranged along the vertical arc roller section with the inclined angle 2-2 angle, the vertical arc roller section with the inclined angle, the inclined angle is equal to the inclined angle, the angle 2 angle, 2 angle is equal to the angle, 2-1 angle, 2 angle, the angle, 2 angle is equal to the angle, 2 angle, the angle, 2 angle is equal to the.
In addition, the outer diameter of the first roller 4 is larger than that of the second roller 5, the vertical cooling nozzles 2-2 and the strong scale sweeping nozzles 1 are inclined to the first roller 4 by a certain angle respectively, and the inclination angles are as follows: gamma is more than or equal to 4 degrees and less than or equal to 7 degrees, and water flow can be fully contacted with the surface of the casting blank so as to more effectively achieve the aims of cleaning iron scales and cooling the casting blank and the roller.
Wherein, the technical indexes of the strong scale sweeping nozzle are as follows: the water-gas mixing nozzle has the advantages that the water amount of a single nozzle is 2-20L/min, and the strong scale sweeping nozzle has the effect that: the method can effectively remove the iron scale on the surface of the casting blank, prevent the center of the iron scale from being accumulated, and evenly cool the casting blank. The strong scale sweeping nozzles play a main sweeping role, and the horizontal cooling nozzles arranged horizontally play a secondary sweeping role.
In the embodiment, the cooling nozzles and the strong scale sweeping nozzles of the inner arc roller section and the outer arc roller section adopt water-gas mixing nozzles. The water spraying amount of the cooling nozzle of the outer arc roller section and the strong scale sweeping nozzle is 1-1.5 times that of the cooling nozzle of the inner arc roller section and the strong scale sweeping nozzle. The water volumes of the transverse cooling nozzles arranged in the horizontal direction of the inner arc roller section and the outer arc roller section and the strong scale sweeping nozzles arranged in the vertical direction are fixed. In addition, the external cooling device of the sector secondary cooling system is only changed under the condition of the solidification end heavy pressure, such as: the cooling method of the roller inner part and other parts such as the bearing seat is still unchanged.
Experiments prove that after the method is implemented, the cooling requirement of the roller of the sector section can be met, the good state of the sector section can be kept, the service life of the sector section can be prolonged, the cooling requirement of a solidification end on a casting blank and the cleaning requirement of surface iron oxide scales can be met, the uniform cooling of inner and outer arcs of a plate blank can be facilitated, the plate blank is prevented from warping and deforming, the equipment cost is saved, and the quality of the continuous casting blank is ensured.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and any simple modifications or equivalent substitutions of the technical solutions that can be obviously obtained by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (10)
1. A sector secondary cooling system for solidification tail end heavy reduction is characterized by comprising cooling nozzles and strong scale sweeping nozzles, wherein the cooling nozzles and the strong scale sweeping nozzles are installed in a horizontal sector of a continuous casting machine and correspond to an outer arc roller section and an inner arc roller section, the inner arc roller section and the outer arc roller section are in up-down correspondence, the cooling nozzles and the strong scale sweeping nozzles corresponding to the inner arc roller section and the outer arc roller section are distributed in a horizontally and vertically staggered mode, the horizontally arranged nozzles are transverse cooling nozzles, the transverse cooling nozzles are oppositely arranged at two ends between a first roller and a second roller along the axial direction of the roller sections, an included angle between the nozzles and the horizontal plane is α, the included angle is α which is not less than 2 degrees, the outlet of the transverse cooling nozzles of the inner arc roller section is upward and points at the lower surface of the inner arc roller section, the outlet of the transverse cooling nozzles of the outer arc roller section is downward and points at the upper surface of the outer arc roller section, the vertically arranged nozzles are divided into vertical cooling nozzles, the vertical cooling nozzles with inclination angles not less than 634 degrees, the inclination angles between the vertical cooling nozzles and the strong scale sweeping nozzles are not less than 52 degrees, the inclination angles between the vertical cooling nozzles and the cooling nozzles.
2. The sector secondary cooling system for cold press at solidification end according to claim 1, wherein the horizontal cooling nozzles of the inner arc roller section are oppositely arranged at two ends of the V-shaped groove at the lower part between the first roller and the second roller, and the angle is 2- α -5 degrees.
3. The sector secondary cooling system for cold press at solidification end according to claim 1, wherein the nozzles vertically arranged in the inner arc roller segments are divided into at least two vertical cooling nozzles, vertical cooling nozzles having an inclination angle, and strong scale-sweeping nozzles, the cooling nozzles between adjacent inner arc roller segments are installed above the adjacent inner arc roller segments at intervals, and the vertical cooling nozzles having an inclination angle and the strong scale-sweeping nozzles are located above the space between the first roller and the second roller.
4. The sector secondary cooling system for cold end re-pressing of solidification according to claim 1, wherein in the outer arc roller section, horizontally arranged transverse cooling nozzles are oppositely arranged at both ends of the V-shaped groove at the upper part between the first roller and the second roller, and 2 ° to α ° to 5 °.
5. The sector secondary cooling system for cold press at solidification end according to claim 1, wherein the nozzles vertically arranged in the outer arc roller segments are divided into at least two vertical cooling nozzles, vertical cooling nozzles having an inclination angle, and strong scale-sweeping nozzles, the cooling nozzles between adjacent outer arc roller segments are installed below the adjacent outer arc roller segments at intervals, and the vertical cooling nozzles having an inclination angle and the strong scale-sweeping nozzles are located below the first roller and the second roller.
6. The sector secondary cooling system for hard reduction at the solidification end according to claim 3 or 5, wherein the number of the vertical cooling nozzles having an inclination angle is two, the number of the strong scale sweeping nozzles is four, each vertical cooling nozzle having an inclination angle is positioned between two of the strong scale sweeping nozzles to form one group, and the nozzles in each group are inclined to the outside in two groups, and the inclination angle is not less than 17 ° and not more than β ° and not more than 20 °.
7. The sector secondary cooling system for cold press at solidification end according to claim 3 or 5, wherein the first roll has an outer diameter larger than that of the second roll, and the vertical cooling nozzle and the strong scale sweeping nozzle are inclined in the direction of the first roll at an angle of inclination: gamma is more than or equal to 4 degrees and less than or equal to 7 degrees.
8. The sector secondary cooling system for hard reduction at the solidification end as claimed in claim 1, wherein the cooling nozzles and the strong scale sweeping nozzles of the inner and outer arc roll sections are water-gas mixing nozzles.
9. The sector-shaped secondary cooling system for heavy reduction at the solidification end according to claim 1, wherein the amount of water sprayed from the cooling nozzles and the strong scale sweeping nozzles of the outer arc roller section is 1 to 1.5 times the amount of water sprayed from the cooling nozzles and the strong scale sweeping nozzles of the inner arc roller section.
10. The sector secondary cooling system for cold press at solidification end according to claim 1, wherein the water amount of the horizontal cooling nozzles and the vertical strong scale-sweeping nozzles arranged horizontally and horizontally of the inner and outer arc roller sections is fixed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810720267.6A CN108543922B (en) | 2018-07-03 | 2018-07-03 | Sector section secondary cooling system for recompression of solidification tail end |
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| CN201810720267.6A CN108543922B (en) | 2018-07-03 | 2018-07-03 | Sector section secondary cooling system for recompression of solidification tail end |
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| CN108543922B true CN108543922B (en) | 2020-02-11 |
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| CN110355339B (en) * | 2019-07-26 | 2024-03-26 | 武汉高智达连铸智能科技有限公司 | Device and method for removing iron scales at tail end of sector section |
| CN111515359B (en) * | 2020-05-12 | 2022-08-02 | 河北普阳钢铁有限公司 | Device for reducing uneven cutting and unclean burrs of casting blank and using method thereof |
| CN112404382B (en) * | 2020-10-30 | 2022-03-08 | 山东钢铁集团日照有限公司 | Method for reducing bow defects of casting blank of ultra-wide slab continuous casting machine |
| CN115090848A (en) * | 2022-06-15 | 2022-09-23 | 河钢乐亭钢铁有限公司 | Process method for preventing casting blank from bending deformation in continuous casting process |
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| FR2345252A1 (en) * | 1976-03-22 | 1977-10-21 | Usinor | IMPROVEMENTS TO THE DEVICES FOR SUPPORTING AND COOLING THE CONTINUOUS FLOWING PRODUCTS |
| JPS55139155A (en) * | 1979-04-14 | 1980-10-30 | Nippon Steel Corp | Continuous casting method of cast steel billet |
| JPS59229268A (en) * | 1983-06-08 | 1984-12-22 | Nippon Steel Corp | Descaling method of continuous casting billet |
| JPH0760420A (en) * | 1993-08-25 | 1995-03-07 | Nippon Steel Corp | Cooling device |
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