CN112059135A - Crystallizer molten steel level correction device and application method thereof - Google Patents
Crystallizer molten steel level correction device and application method thereof Download PDFInfo
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- CN112059135A CN112059135A CN202010841377.5A CN202010841377A CN112059135A CN 112059135 A CN112059135 A CN 112059135A CN 202010841377 A CN202010841377 A CN 202010841377A CN 112059135 A CN112059135 A CN 112059135A
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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
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Abstract
The invention discloses a crystallizer molten steel surface correction device and a using method thereof, belonging to the technical field of continuous casting. The device comprises a crystallizer, wherein a crystallizer copper pipe is arranged in the crystallizer; the liquid level detector comprises a radioactive source arranged on one side of the crystallizer copper pipe and a receiver arranged on the other side of the crystallizer copper pipe; the correcting device comprises a steel blank die and is arranged in the crystallizer copper pipe; the supporting frame is arranged right above the crystallizer copper pipe; the screw rod penetrates through the support frame and is in threaded connection with the support frame, and one end of the screw rod is rotatably connected with the top of the billet mold; and the hand wheel is fixedly connected with the other end of the screw rod. According to the invention, through the correction device, when the liquid level detector detects, an approximately ideal molten steel environment is simulated in the crystallizer copper pipe, so that the interference of factors such as molten steel fluctuation and difficulty in controlling the height during detection is avoided, the validity of detection data is ensured, and through the correction device, the actual heights of all reference surfaces determined in all flows are consistent, so that the accuracy of the subsequent control of the molten steel level in the crystallizer copper pipe is ensured.
Description
Technical Field
The invention belongs to the technical field of continuous casting, and particularly relates to a crystallizer molten steel surface correction device and a using method thereof.
Background
In the metallurgy continuous casting, the liquid level control of the crystallizer is one of important factors for ensuring the continuous casting quality, and particularly for a multi-strand continuous casting machine, the liquid level position of each stream of molten steel in a copper pipe needs to be unified to be consistent in order to ensure the product quality.
The liquid level of steel usually relies on radiation source and receiver to detect in the crystallizer, to multithread continuous casting system, radiation source or receiver need be changed when damaging, also need dismantle it when overhaul, when installing, can't guarantee that the position installation of every class's radiation source or receiver is unanimous, therefore, when the molten steel liquid level detection is carried out to the difference stream, there is the difference in the benchmark position yardstick that detects, to the liquid level information feedback that the difference flowed the detection, if want to come the actual altitude mixture control to the uniform height of multithread liquid level through the testing result of each class liquid level detector, there is the degree of difficulty, unable accurate adjustment.
Through retrieval, the Chinese patent publication number: CN 101905301A; the publication date is as follows: 12 months and 08 days 2010; discloses a detection device for the liquid level of molten steel in a crystallizer of a continuous casting machine, which comprises: a gamma radioactive source arranged in a source box mounting box in the water tank of the crystallizer, a receiver arranged in a receiver mounting box in the water tank of the crystallizer and a signal processor; the detector in the receiver shell is a scintillation crystal with a transparent window on the side wall of which the long shaft is vertically arranged, and the surfaces of the scintillation crystal except the transparent window are covered with a reflecting film. Although the detection device is improved to improve the detection sensitivity, when the detection device is applied to a multi-strand continuous casting machine, the mounting positions of the detection devices on each flow cannot be completely consistent, and therefore when the liquid level detection heights of all the flows are controlled to be consistent, the actual liquid level heights of all the flows are also consistent.
Disclosure of Invention
In order to solve at least one of the above technical problems, according to an aspect of the present invention, there is provided a mold steel level correcting apparatus including:
a crystallizer, wherein a crystallizer copper pipe is arranged in the crystallizer;
the liquid level detector comprises a radioactive source arranged on one side of the crystallizer copper pipe and a receiver arranged on the other side of the crystallizer copper pipe;
still include correcting unit, it includes:
the steel blank die is arranged in the crystallizer copper pipe;
the supporting frame is arranged right above the crystallizer copper pipe;
the screw rod penetrates through the support frame and is in threaded connection with the support frame, and one end of the screw rod is rotatably connected with the top of the billet mold;
and the hand wheel is fixedly connected with the other end of the screw rod.
According to the crystallizer molten steel level correction device provided by the embodiment of the invention, optionally, the correction device further comprises a support frame sliding block which is fixedly connected to the bottom of the support frame, and the screw rod penetrates through the support frame sliding block and is in threaded connection with the support frame sliding block.
According to the crystallizer molten steel level correction device provided by the embodiment of the invention, optionally, the supporting frame further comprises a buffer seat which protrudes downwards and is formed on the bottom surface of the supporting frame, and the buffer seat is of an elastic structure.
According to the crystallizer molten steel level correction device provided by the embodiment of the invention, optionally, a bearing is arranged at the top of the steel blank die, an outer ring of the bearing is fixedly connected with the steel blank die, and an inner ring of the bearing is fixedly connected with the screw rod.
According to the crystallizer molten steel level correction device provided by the embodiment of the invention, optionally, the screw rod is a high-precision screw rod.
According to the crystallizer molten steel level correction device provided by the embodiment of the invention, optionally, the shape of the steel blank die is matched with that of the crystallizer copper tube.
According to another aspect of the invention, a method for using the crystallizer molten steel level correction device is provided, which comprises the following steps:
firstly, placing a correction device:
a. placing a steel billet mold of the correcting device in a crystallizer copper pipe, and putting down the steel billet mold until a buffer seat of the support frame is contacted with the top of the crystallizer;
b. rotating a hand wheel, and controlling a screw rod to adjust the steel billet mold to a fixed height within the detection range of the liquid level detector;
secondly, correction is carried out:
starting a liquid level detector, detecting the position of the upper surface of a steel billet mold, and marking the detected position in intelligent terminal equipment as a reference surface;
thirdly, correcting multiple streams:
and repeating the first step and the second step, wherein each flow marks a reference surface in the intelligent terminal equipment.
According to the use method of the crystallizer liquid level correction device provided by the embodiment of the invention, the material of the steel blank mold is optionally the same as that of the molten steel communicated in the crystallizer to be corrected.
Advantageous effects
(1) According to the crystallizer liquid level correction device, when the liquid level detector detects the liquid level, a nearly ideal molten steel environment is simulated in the crystallizer copper pipe, so that the interference of factors such as molten steel fluctuation and difficulty in controlling the height during detection is avoided, the validity of detection data is ensured, and the actual heights of all reference surfaces in all flows are consistent through the reference surface determined by the billet mold of the correction device, so that the accuracy of the subsequent control of the liquid level of the molten steel in the crystallizer copper pipe is ensured;
(2) according to the crystallizer liquid level correction device, the support frame sliding block is arranged below the support frame of the correction device, so that resistance applied to the rotation of the screw rod can be reduced, the control of the height position of a steel blank die by a hand wheel is facilitated, and correction operation is further facilitated;
(3) according to the crystallizer liquid level correction device, the buffer seat is arranged below the support frame, the support frame is buffered when being placed, the support frame is prevented from being deformed by impact force, and the accuracy of subsequent correction is ensured;
(4) according to the crystallizer liquid level correction device, the steel blank die is connected with the screw rod through the bearing structure, so that the reliable connection is ensured, meanwhile, the friction force between the screw rod and the steel blank die during rotation is reduced, and the steel blank die is ensured to stably lift in a crystallizer copper pipe;
(5) according to the crystallizer liquid level correction device, the distance L between the upper surface of a steel billet mold and a copper pipe orifice of a crystallizer can be conveniently and accurately controlled through the high-precision lead screw, so that the accuracy of subsequent correction is ensured;
(6) according to the crystallizer liquid level correction device, when correction is carried out, the billet mold is attached to the wall of the copper pipe of the crystallizer, the stability of the position of the billet mold can be ensured during correction, the detection environment when molten steel is filled in the copper pipe of the crystallizer can be simulated, and the accuracy of a correction result is improved;
(7) the use method of the crystallizer liquid level correction device has simple steps, is easy to operate, and is convenient and effective to correct the reference surface of each liquid level detector, thereby ensuring the accuracy of each liquid level control and improving the product quality of a continuous casting system;
(8) according to the application method of the crystallizer liquid level correction device, the material of the steel blank die is the same as that of the molten steel communicated in the crystallizer to be corrected, so that the material of the molten steel in the copper pipe of the crystallizer during actual production can be simulated to a greater extent, and the correction error is further reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description only relate to some embodiments of the present invention and are not limiting on the present invention.
FIG. 1 is a schematic view of a crystallizer molten steel level correction device of the present invention;
FIG. 2 shows a schematic view of the calibration device of the present invention;
FIG. 3 shows a schematic view of the calibration device in use;
FIG. 4 is an enlarged view taken at A in FIG. 3;
FIG. 5 shows a schematic view of the calibration device adjusted into position;
FIG. 6 is a schematic view showing the state of the copper tube of the crystallizer in the multi-strand continuous casting.
Reference numerals:
1. a crystallizer; 10. a crystallizer copper pipe;
2. a liquid level detector; 20. a radioactive source; 21. a receiver;
3. a correction device; 30. a steel blank die; 300. a bearing; 31. a support frame; 310. a buffer seat; 32. a screw rod; 33. a hand wheel; 34. a support frame sliding block.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
Example 1
The crystallizer molten steel level correcting device of this embodiment, the device includes:
a crystallizer 1, in which a crystallizer copper pipe 10 is arranged;
a liquid level detector 2, which comprises a radioactive source 20 arranged at one side of the crystallizer copper tube 10 and a receiver 21 arranged at the other side of the crystallizer copper tube 10;
also included is a correction device 3 comprising:
a billet mold 30, which is placed in the crystallizer copper pipe 10;
the support frame 31 is arranged right above the crystallizer copper pipe 10;
the screw rod 32 penetrates through the support frame 31 and is in threaded connection with the support frame 31, and one end of the screw rod 32 is rotatably connected with the top of the steel billet mold 30;
and a hand wheel 33 fixedly connected with the other end of the screw rod 32.
Because of the high temperature environment and the characteristics of molten steel during continuous casting, a radiation detector is usually used during liquid level detection of a crystallizer, a radiation source 20 emits radiation, the radiation passes through a crystallizer copper tube 10 and is received by a receiver 21 on the other side, for a multi-stream continuous casting system, to detect the liquid level in each stream of the crystallizer copper tube 10, a liquid level detector 2 needs to be respectively arranged in each stream of the crystallizer 1, because the height position of the radiation source 20 or the receiver 21 in each stream cannot be ensured to be consistent during actual arrangement, and the installation consistency cannot be ensured after the radiation source 20 or the receiver 21 is disassembled and replaced, when each stream performs liquid level detection, the reference position scale is different, and in a popular way, when each stream is detected by the liquid level detector 2, the liquid level height is calibrated to be 100, because the height position of the liquid level detector 2 in each stream, The working condition environment has deviation, in the actual height, the actual height of the height surface of 100 calibrated by the liquid level detector 2 of each flow is different, in order to ensure the product quality in the continuous casting process, the molten steel liquid level of each flow needs to be controlled to be consistent, the operation needs to be carried out on intelligent terminal equipment according to the result expressed by the liquid level detector 2, and when the expressed result is not the same as the actual result, the control on the molten steel liquid level in the crystallizer can not be accurate.
Therefore, if the consistency of the molten steel level in each crystallizer copper pipe 10 in the multi-stream continuous casting system is to be accurately controlled, the reference surface (in this embodiment, the reference surface is set to be a "100" height surface) calibrated by each liquid level detector 2 needs to be uniformly corrected, so that the height of the reference surface displayed by each liquid level detector 2 is consistent in the actual position, the applicant proposes a correction method, wherein molten steel is filled in each stream of crystallizer copper pipe 10, and the height of the molten steel level in each stream of crystallizer copper pipe 10 is ensured to be the same as much as possible, then the liquid level detectors 2 detect the height of the molten steel level in the corresponding stream of crystallizer copper pipe 10, and calibrate the height of the molten steel level to be the reference surface "100", thereby ensuring that the actual height of the reference surface detected by each liquid level detector 2 is consistent, as shown in fig. 6, but in the actual operation process, the molten steel is a high-temperature liquid phase, and the actual height of the difficulty level in each stream of crystallizer copper pipe 10, and the molten steel in the crystallizer copper pipe 10 fluctuates, the liquid level detector 2 cannot detect the height of the stable liquid level when detecting the liquid level, so that the actual height of the calibrated reference surface 100 is inevitable to have an error, and aiming at the problem, the applicant further improves the scheme to simulate a molten steel environment to be detected under the condition close to an ideal condition in the crystallizer copper pipe 10:
the structure of the correcting device 3 is designed in the embodiment, as shown in fig. 2, a steel blank mold 30 is adopted to replace molten steel to be detected to simulate the molten steel environment in the crystallizer copper pipe 10, firstly, the components of the steel blank mold 30 are close to those of the molten steel, the interference of the molten steel environment on the radioactive source 20 and the receiver 21 when the liquid level detector 2 detects can be simulated, further, the shape of the steel blank mold 30 is stable, unstable phenomena such as fluctuation and the like can not occur when the steel blank mold is placed into the crystallizer copper pipe 10 for detection, and the detection result of the liquid level detector 2 has advisability; in the embodiment, the lifting of the steel blank mold 30 is controlled by adopting the screw rod 32, the screw rod 32 passes through the support frame 31 and is in threaded connection with the support frame 31, the support frame 31 is arranged right above the crystallizer copper tube 10, the support frame 31 is arranged above the crystallizer 1 when in use, and the screw rod 32 is driven to rotate by rotating the hand wheel 33 fixed with the screw rod 32, so that the effect of controlling the lifting of the steel blank mold 30 is achieved;
when the molten steel level is corrected, the support frame 31 is placed, the hand wheel 33 is rotated to adjust the steel blank mold 30 to descend in the crystallizer copper pipe 10 until the upper surface of the steel blank mold 30 is positioned at the effective monitoring area alpha of the liquid level detector 2, the position of the correcting device 3 is changed once as shown in figures 1, 3 and 5, when the distance from the upper surface of the steel blank mold 30 to the upper port of the crystallizer copper pipe 10 is L, the liquid level detector 2 is started to detect the liquid level as shown in figure 4, in the intelligent terminal equipment, the position of the upper surface of the steel blank mold 30 detected by the liquid level detector 2 is marked as a reference surface 100, so that the reference surface in one flow is marked, the same operation is adopted in other flows, the distance from the upper surface of the steel blank mold 30 to the upper port of the crystallizer copper pipe 10 is L, the positions of the reference surfaces 100' in each flow are marked in turn, and at the height positions of the reference surfaces are completely consistent, avoiding the interference factors during the calibration of the molten steel.
Further, radiation source 20 is the Co 60 radiation source among the liquid level detector 2, compares in other radiation source rays, and the Co 60 radiation source is less to the human body injury, and the security is stronger, and can not receive the influence of covering slag in crystallizer 1 when detecting, and the device of this embodiment is cooperated, and liquid level detection control is more accurate.
Example 2
The crystallizer molten steel level correcting device of the embodiment is further improved on the basis of the embodiment 1, the correcting device 3 further comprises a support frame sliding block 34 which is fixedly connected to the bottom of the support frame 31, and the screw rod 32 penetrates through the support frame sliding block 34 and is in threaded connection with the support frame sliding block 34.
As shown in fig. 2, by providing the support frame sliding block 34, the threaded connection length between the screw rod 32 and the support frame 31 and between the support frame sliding blocks 34 is increased, and because the weight of the billet mold 30 is large, the support frame sliding blocks 34 are additionally arranged, and downward load borne by partial threads of the support frame 31 is evenly shared, so that resistance when the screw rod 32 rotates is reduced, the hand wheel 33 can conveniently rotate to adjust the height of the billet mold 30, and further, the correction operation can be conveniently carried out.
Example 3
The crystallizer molten steel level correction device of the embodiment is further improved on the basis of the embodiment 2, the supporting frame 31 further comprises a buffer seat 310, the buffer seat 310 protrudes downwards to be formed on the bottom surface of the supporting frame 31, and the buffer seat 310 is of an elastic structure.
The steel blank die 30 has a large mass, and when the support frame 31 is placed, the buffer seat 310 formed by the elastic structure can effectively buffer, so that the support frame 31 is prevented from deforming under the impact force to influence the accuracy of subsequent correction operation.
Further, the buffer seat 310 may be an elastic structure having a buffer function, such as a spring.
Example 4
The crystallizer molten steel level correction device of the embodiment is further improved on the basis of the embodiment 3, the bearing 300 is arranged at the top of the steel blank die 30, the outer ring of the bearing 300 is fixedly connected with the steel blank die 30, and the inner ring of the bearing 300 is fixedly connected with the screw rod 32.
As shown in fig. 2, the screw rod 32 is connected to the billet mold 30 by the structure of the bearing 300, so that the friction between the screw rod 32 and the billet mold 30 during rotation can be reduced while ensuring reliable connection, and the billet mold 30 can be stably lifted in the mold copper tube 10.
Example 5
The crystallizer molten steel level correction device of the embodiment is further improved on the basis of the embodiment 4, and the screw rod 32 is a high-precision screw rod.
The high-precision lead screw can further ensure the accurate control of the height of the steel blank die 30, ensure the consistency of the distance L between the upper surface of the steel blank die 30 and the pipe orifice of the crystallizer copper pipe 10 and ensure the subsequent correction effect.
Example 6
The crystallizer molten steel level correction device of the embodiment is further improved on the basis of the embodiment 4, and the shape of the steel blank die 30 is matched with the shape of the crystallizer copper tube 10.
The shape of the billet mold 30 is matched with that of the crystallizer copper pipe 10, when the billet mold 30 is corrected, the billet mold can be attached to the pipe wall of the crystallizer copper pipe 10, the position of the billet mold 30 can be stable when the billet mold is corrected, the detection environment when molten steel is filled into the crystallizer copper pipe 10 can be simulated, and the accuracy of the correction result is improved.
Example 7
The application method of the crystallizer molten steel level correction device comprises the following steps:
firstly, placing a correction device:
a. placing the billet mold 30 of the correcting device 3 in the crystallizer copper pipe 10, and putting down the billet mold 30 until the buffer seat 310 of the support frame 31 is contacted with the top of the crystallizer 1;
b. rotating a hand wheel 33, and controlling a screw rod 32 to adjust the steel blank die 30 to a fixed height within the detection range of the liquid level detector 2;
secondly, correction is carried out:
starting the liquid level detector 2, detecting the position of the upper surface of the steel blank mold 30, and marking the detected position in the intelligent terminal device as a reference surface;
thirdly, correcting multiple streams:
and repeating the first step and the second step, wherein each flow marks a reference surface in the intelligent terminal equipment.
When in use, the billet die 30 of the correcting device 3 is aligned with a certain first-class crystallizer copper pipe 10, the crystallizer copper pipe is placed, after the buffer seat 310 of the support frame 31 is contacted with the top of the crystallizer 1, the hand wheel 33 is rotated to adjust the height position of the billet die 30, the upper surface of the billet die 30 is positioned in the effective detection range alpha of the liquid level detector 2, the vertical distance between the upper surface of the billet die 30 and the crystallizer copper pipe 10 is determined to be L, the liquid level detector 2 is started, the position of the upper surface of the billet die 30 is displayed on intelligent terminal equipment, at the moment, the position is marked as a reference surface 100, the same operation is carried out on the crystallizer copper pipes 10 of other classes, the corresponding reference surface 100 is marked on the intelligent terminal equipment in each class, at the moment, the actual heights of the reference surfaces in the liquid level detectors 2 of each class are the same, and therefore, the correction of the liquid level of the steel in the crystallizer copper pipe, the subsequent steel liquid level control and the immersion type water gap insertion depth control can be performed by taking the reference surface as a reference, the corresponding deviation amount is adjusted, the same deviation amount is kept during the adjustment of each flow, the operations of consistent control of the steel liquid level of each flow, consistent insertion depth of the immersion type water gap and the like can be realized, the effective regulation and control of a continuous casting system are greatly facilitated, and the quality of a continuous casting product is improved.
Example 8
The method for using the crystallizer molten steel level correction device of the embodiment is further improved on the basis of the embodiment 7, and the material of the billet mold 30 is the same as that of the molten steel which is to be corrected and is passed through the crystallizer 10.
The material of the steel blank mold 30 is the same as that of the molten steel introduced into the crystallizer 10 to be corrected, that is, the steel blank mold 30 is processed from the continuous casting product of the continuous casting system in which the crystallizer 1 to be corrected is located, the continuous casting product of the crystallizer 1 to be corrected is processed into the steel blank mold 30 for correction, and the steel blank mold 30 made of the material can simulate the material of the molten steel in the crystallizer copper pipe 10 to a greater extent due to the fact that the components of the molten steel introduced into the crystallizer 10 before and after correction are basically the same, and therefore correction errors are further reduced.
The examples described herein are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.
Claims (7)
1. A crystallizer molten steel level correcting device comprises,
a crystallizer, wherein a crystallizer copper pipe is arranged in the crystallizer;
the liquid level detector comprises a radioactive source arranged on one side of the crystallizer copper pipe and a receiver arranged on the other side of the crystallizer copper pipe;
it is characterized by also comprising a correcting device which comprises:
the steel blank die is arranged in the crystallizer copper pipe;
the supporting frame is arranged right above the crystallizer copper pipe;
the screw rod penetrates through the support frame and is in threaded connection with the support frame, and one end of the screw rod is rotatably connected with the top of the billet mold;
and the hand wheel is fixedly connected with the other end of the screw rod.
2. The device for correcting the molten steel level in a crystallizer according to claim 1, wherein: the correcting device further comprises a support frame sliding block which is fixedly connected to the bottom of the support frame, and the screw rod penetrates through the support frame sliding block and is in threaded connection with the support frame sliding block.
3. The device for correcting the molten steel level in a crystallizer according to claim 2, wherein: the support frame also comprises a buffer seat which protrudes downwards to form on the bottom surface of the support frame, and the buffer seat is of an elastic structure.
4. The device for correcting the molten steel level in a crystallizer according to claim 3, wherein: the steel billet die is characterized in that a bearing is arranged at the top of the steel billet die, the outer ring of the bearing is fixedly connected with the steel billet die, and the inner ring of the bearing is fixedly connected with the screw rod.
5. The crystallizer molten steel level correction device as claimed in claim 4, wherein: the screw rod is a high-precision screw rod.
6. The crystallizer molten steel level correction device as claimed in claim 5, wherein: the shape of the steel blank die is matched with that of the crystallizer copper tube.
7. The use method of the crystallizer molten steel level correction device based on claim 6 is characterized by comprising the following steps:
firstly, placing a correction device:
a. placing a steel billet mold of the correcting device in a crystallizer copper pipe, putting down the steel billet mold until a buffer seat of a support frame is contacted with the top of the crystallizer, wherein the material of the steel billet mold is the same as that of molten steel communicated in the crystallizer to be corrected;
b. rotating a hand wheel, and controlling a screw rod to adjust the steel billet mold to a fixed height within the detection range of the liquid level detector;
secondly, correction is carried out:
starting a liquid level detector, detecting the position of the upper surface of a steel billet mold, and marking the detected position in intelligent terminal equipment as a reference surface;
thirdly, correcting multiple streams:
and repeating the first step and the second step, wherein each flow marks a reference surface in the intelligent terminal equipment.
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| CN202010841377.5A CN112059135A (en) | 2020-08-20 | 2020-08-20 | Crystallizer molten steel level correction device and application method thereof |
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| CN202010841377.5A CN112059135A (en) | 2020-08-20 | 2020-08-20 | Crystallizer molten steel level correction device and application method thereof |
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| US4708193A (en) * | 1984-06-20 | 1987-11-24 | Metacon Ag | Process for removing deposits from the flow channel of a tundish during continuous casting |
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| JPH0716774B2 (en) * | 1984-09-05 | 1995-03-01 | メタコン・アクチエンゲゼルシヤフト | Continuous casting method using multiple molds |
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| CN111421120A (en) * | 2020-04-14 | 2020-07-17 | 石家庄钢铁有限责任公司 | Calibration device and method for checking liquid level of molten steel in crystallizer of bloom continuous casting machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4708193A (en) * | 1984-06-20 | 1987-11-24 | Metacon Ag | Process for removing deposits from the flow channel of a tundish during continuous casting |
| JPH0716774B2 (en) * | 1984-09-05 | 1995-03-01 | メタコン・アクチエンゲゼルシヤフト | Continuous casting method using multiple molds |
| JPH06285604A (en) * | 1993-04-05 | 1994-10-11 | Nippon Steel Corp | Method for controlling molten metal surface level in continuous casting for multi-layered steel plate |
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Application publication date: 20201211 |