CN102294449B - Method for active strip breaking and continuous casting keeping of strip continuous casting - Google Patents
Method for active strip breaking and continuous casting keeping of strip continuous casting Download PDFInfo
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Abstract
A method for active strip breaking and continuous casting keeping of strip continuous casting comprises the following steps of: two sets of active strip breaking devices, a set of cast strip breakage detection system and a set of strip steel guiding device are symmetrically arranged on the left and the right with a vertical cast strip as a centre under a strip continuous casting roll; in the strip continuous casting process, when the head portion of the cast strip is poor in quality at the initial stage of casting, breaking the head portion of the cast strip by the active strip breaking devices in an active manner, thereby removing the poor cast strip head portion; and when a coil of cast strip is curled completely and a curling machine needs to switch a reel, breaking the cast strip by the active strip breaking devices in the active manner at the outlet of a casting machine, and then matching the cast strip breakage detection system with the strip steel guiding device so that the subsequent cast strip can be continuous curled. The method is capable of removing head portion of the strip continuous casting cast strip having quality defects, and also capable of performing active separation and strip breakage while switching the reels of the curling machine; and the method is further capable of keeping casting operation continuity after the active strip breakage, thereby achieving the purpose of stable production and improving the casting success rate.
Description
Technical field
The present invention relates to continuous casting technology, particularly a kind of thin strap continuous casting broken belt and keep the method for direct casting initiatively.
Background technology
The twin-roll thin strip continuous casting technology is a kind of advanced person's short flow process metallurgical technology.typical example as shown in Figure 1, directly pouring molten steel is relatively rotated by two at one and can be fast cooling casting roll 1a, 1b and side seal board 2a, in the molten bath that 2b surrounds, molten steel is cooled and solidifies in the peripheral surface of casting roll rotation, and then form solidified shell and grow gradually, then at two crystallization roll 1a, the minimum place of 1b roll gap gap is pressed together, form band 4, band is via guide plate 5 guiding kink guide roller 12 and pinch rolls 6, and at kink guide roller 12 and casting roll 1a, form kink 3 between 1b, then be rolled into strip by milling train 7, then driving by rollgang 8 carries out cooling through spray cooling device 9, send at last crimping machine 11 through crimping machine pinch roll 10 curling.
It is fast that the production of thin strap continuous casting has speed, the characteristics that flow process is short.And in thin band continuous casting technique, the process condition at casting initial stage is very complicated, this moment, the temperature of crystallization roll was lower, liquid steel temperature in the molten bath is also lower, cause casting strip quality very poor, a lot of and the Cast Strip head out-of-shape of impurity, the head warpage often occurs or tear etc. is unfavorable for the abnormal conditions that carry the Cast Strip, if be left intact in this case, the Cast Strip is difficult to be transported to subsequent handling, very likely at the milling train place or the coiling machine entrance stop up, thereby cause whole casting operation failure.
In addition, in direct casting, need initiatively the Cast Strip is initiatively disconnected during switching crimping machine reel after curling the completing of finished product volume, be that shear arrangement is set after milling train as the method for mentioning in Chinese patent CN1358119A, CN1297793 and US Patent No. 6698498, switch again coiling machine after the Cast Strip is disconnected.
But also there are some additive methods to save shear arrangement, the technological parameters such as the employing speed change described in US Patent No. 2004104006A and WO02076655A1 or change roll gap make the Cast Strip locate fracture in the outlet (nip point) of casting machine, thereby reach the purpose of broken belt.In these methods, great majority are to adopt swinging guide plate device to keep the post-rift casting continuity in Cast Strip in casting machine, and the form of swing guide is different, is all in order to guide the Cast Strip can enter smoothly next process.
More above-mentioned two kinds of broken belt methods, before a kind ofly mostly need to implement shearing before the Cast Strip is sent to coiling machine, what utilize is more conventional band steel bundling processing method, there is unworthiness in this method for thin band continuous casting technique, because if take the lead in the situation of poor quality, long apart from course of conveying probably before flying shear is delivered in the Cast Strip with regard to because other reasons and jam on rollgang.
Then a kind of method needs strictly to control the casting process parameter of impelling the Cast Strip fracture, in the broken belt process, change corresponding parameter and can cause molten metal pool level big ups and downs or the fluctuation of casting roll roll gap, fluctuation in these short time all can cause casting cycle unstable, there is the risk of damage casting roll roll surface quality, damage side seal board, and then causes serious bleed-out accident.And, utilize this method to be difficult to control the second best in quality Cast Strip head, be unfavorable for the Cast Strip conveying.
In sum, for the needs of thin strap continuous casting continuous production, must take measures to make the Cast Strip initiatively to rupture in the thin strap continuous casting casting cycle and keep afterwards the continuity of casting operation in fracture, thereby reaching the purpose of steady production.
Summary of the invention
The object of the invention is to propose a kind of thin strap continuous casting active broken belt and keep the method for direct casting, the thin strap continuous casting end of extruded band section that utilizes the method to remove to have mass defect, active bundling broken belt when being used for switching coiler mandrel simultaneously, keep simultaneously the casting operation continuity after the active broken belt, thereby reach the purpose of steady production, raising is cast into power.The present invention is applicable to twin-roll thin strip continuous casting production, the Thin Strip Steel of 1-2.5mm.
For achieving the above object, technical scheme of the present invention is,
A kind of thin strap continuous casting initiatively broken belt also keeps the method for direct casting, below casting roll for strip continuous casting centered by vertical Cast Strip left and right two covers initiatively tape cutters, cover Cast Strip broken belt detection system and the cuff steel guider of being symmetrical arranged; Described active tape cutter comprise can gas jet tube-shaped sputtering device and driving mechanism thereof, the tube-shaped sputtering device is the tracheae that a cover is equipped with gas nozzle, gas leads to each nozzle by tracheae, the tube-shaped sputtering device moves close under the effect of hydraulic cylinder or deviates from the Cast Strip, and tube-shaped sputtering device axis around tracheae under driven by motor rotates; In strip casting process, at the casting initial stage, initiatively tape cutter makes Cast Strip head fracture, separates with follow-up continuous Cast Strip, removes quality bad Cast Strip head; And curling complete in the Cast Strip, when coiling machine need to switch reel, initiatively tape cutter made the Cast Strip fracture in the casting machine exit, and then matching with the Cast Strip guider by Cast Strip broken belt detection system to move makes the Cast Strip be curled continuously.
Further, initiatively broken belt adopts gas directly to spray the Cast Strip in the exit, Cast Strip.
Described active tape cutter comprise can gas jet tube-shaped sputtering device and driving mechanism thereof, injection apparatus under the effect of hydraulic cylinder mobile near or deviate from the Cast Strip; During the broken belt operation, two injection apparatus are mobile near the Cast Strip simultaneously, and nozzle is to Cast Strip inject high pressure gas when the 50-200mm scope of nozzle distance Cast Strip, and aero operating pressure is 0.7-2MPa.
Described gas is preferably nitrogen or argon gas.
Be evenly arranged the gases at high pressure nozzle on tube-shaped sputtering device in described active tape cutter, the spray angle of gas nozzle is 10 °-20 °, and spray regime is the ribbon zone, and the injection apparatus jeting area is greater than maximum Cast Strip width.
Jet zone on the injection apparatus of the same side between adjacent nozzle is overlapped, and overlapping range surpasses 30% of single-nozzle projected area, the nozzle interlaced arrangement on the injection apparatus of the left and right sides.
Described Cast Strip broken belt detection system is a cover line sweep belt steel temperature checkout gear, along going out the below that is arranged on injection apparatus with direction, before casting operation begins, it has begun to carry out Cast Strip surface temperature detection, it can detect and process once the temperature data of whole Cast Strip width in 0.1s, in casting cycle, the Cast Strip guidance system is taked corresponding manner of execution according to its testing result.
Described belt steel temperature checkout gear is the infrared temperature scanning means, can be used for detecting the real-time table surface temperature of Cast Strip, if generation broken belt, its temperature fluctuation meeting that detects is very large, if the temperature fluctuation in two continuous temperature sense cycle is judged as the Cast Strip and ruptures greater than 700 ℃.
Described is the swingable guide agency that a cover adopts hydraulic cylinder to control with the steel guider, and its needs along with casting operation can move two positions to its upper limit and the lower limit; When it was in upper limit, the non-oscillation end of swing guide surpassed the i.e. roll gap center line 50-100mm between two casting rolls of casting center line; When swing guide was in lower limit, the Cast Strip was when forming maximum kink, and the kink curve is the free loop curve, and namely the shape of kink curve is not subjected to the constraint of swing guide.
The stenosis of two casting roll roll gap is the Cast Strip outlet, the Cast Strip temperature in next-door neighbour zone, band outlet place is very high below casting roll, be 1200-1350 ℃, the intensity of the Cast Strip of this moment is very poor, utilize these characteristics of Cast Strip, the method that adopts gases at high pressure directly to spray the Cast Strip in the present invention is easy to make the Cast Strip fracture.
In the thin strap continuous casting casting cycle, adopt the continuous situation in broken belt detection system Real Time Observation Cast Strip, Cast Strip, according to Cast Strip situation and technique needs, be arranged on the mode that the active tape cutter of casting roll for strip continuous casting below adopts gas directly to spray the Cast Strip and make the Cast Strip fracture, then make the Cast Strip successfully be directed to subsequent handling by corresponding Cast Strip guider.
In the inventive method, below casting roll centered by vertical Cast Strip left and right two covers initiatively tape cutters, cover Cast Strip broken belt detection system and the cuff steel guider of being symmetrical arranged.Be divided into two kinds of operating modes and implement the method in thin band continuous casting technique, a kind of is initiatively to make Cast Strip head fracture.This broken belt operation implements to remove the bad head of Cast Strip amount at the casting initial stage.Another kind is curling complete in the Cast Strip, and when coiling machine need to switch reel, the Cast Strip is broken belt bundling and continuation casting initiatively.
Concrete broken belt control flow is controlled by the guiding control module of the Cast Strip in the casting machine control system, Cast Strip guiding control module can preset concrete broken belt time and broken belt number of times, or situation continuous in real-time as mentioned above Cast Strip implemented concrete operations.
Active tape cutter of the present invention comprise can inject high pressure gas tube-shaped sputtering device and driving mechanism thereof, injection apparatus can move under the effect of hydraulic cylinder near or deviate from the Cast Strip.During the broken belt operation, two injection apparatus are mobile near the Cast Strip simultaneously, and injection apparatus stops mobilely when the 50-200mm scope of nozzle distance Cast Strip, begins by nozzle to Cast Strip inject high pressure gas, and described gas medium is nitrogen (N
2) or argon gas (Ar), during spraying operation, aero operating pressure is 0.7-2MPa, spray simultaneously two injection apparatus by under driven by motor around its axis opposite direction rotating, rotary speed depends on the pace of Cast Strip, target is by rotation, the gas nozzle that is arranged on injection apparatus to be injected in gas on the same position on surface, Cast Strip all the time, guarantees Cast Strip thoroughly fracture at short notice.
After the fracture of Cast Strip; gas jet pressure is decreased to 0.3-0.5MPa to be continued to spray, and under the maintenance casting machine, there is the inert gas shielding atmosphere in confined chamber, and injection apparatus rollback to the position more than nozzle distance Cast Strip 1m maintains static; injection apparatus rotates back to initial position simultaneously, waits for broken belt operation next time.
Be evenly arranged the gases at high pressure nozzle on tube-shaped sputtering device in active tape cutter of the present invention, the spray angle of gas nozzle is between 10 °-20 °, spray regime is the ribbon zone, jet zone on the injection apparatus of the same side between adjacent gas nozzle is overlapped, overlapping range surpasses 30% of single-nozzle projected area, nozzle arranged crosswise on the injection apparatus of the left and right sides, the jeting area of nozzle is greater than maximum Cast Strip width, as shown in Figure 6.
Cast Strip of the present invention broken belt detection system is a cover line sweep belt steel temperature checkout gear, along going out the below that is arranged on injection apparatus with direction, before casting operation begins, it has begun to carry out Cast Strip surface temperature detection, it can detect and process once the temperature data of whole Cast Strip width in 0.1s, in casting cycle, the Cast Strip guidance system is taked corresponding manner of execution according to its testing result.The belt steel temperature checkout gear is the infrared temperature scanning means, can be used for detecting the real-time table surface temperature of Cast Strip, if generation broken belt, its temperature fluctuation meeting that detects is very large, if the temperature fluctuation in two continuous detecting cycles is greater than 700 ℃ be judged as the Cast Strip and rupture, a Cast Strip temperature detection cycle described here is 0.1s, and after casting finished, the Cast Strip checkout gear quit work.
Described is the swingable guide agency that a cover adopts hydraulic cylinder to control with the steel guider, and its needs along with casting operation can move two positions to its upper limit and the lower limit.When it was in upper limit, the non-oscillation end of swing guide surpassed casting center line (roll gap center line) 50-100mm.When swing guide was in lower limit, the Cast Strip was when forming maximum kink, and the kink curve is the free loop curve, and namely the shape of kink curve is not subjected to the constraint of swing guide.
Major advantage of the present invention
1. realize in the thin strap continuous casting casting cycle initiatively broken belt and keep direct casting, can effectively improve thin strap continuous casting and be cast into power.Improve casting stability and efficient, avoid other the initiatively impact of the parameter fluctuation that brings of broken belt modes on casting cycle.
2. initiatively tape cutter has and provides under casting machine confined chamber with the function of inert gas shielding, to realize dual-use when not carrying out broken belt, has improved utilization rate of equipment and installations, saves equipment investment.
3. adopt contactless broken belt method, broken belt method simple possible, equipment investment is few; The continuous situation in Real-Time Monitoring Cast Strip in casting cycle guarantees the broken belt effect.
The difference of the present invention and prior art and improvements
A kind of flying shear of mentioning in Chinese patent CN1297793 is comprising two pairs of cutting edges, three guide channels.When cutting underproof waste material head, can waste material be moved on to another collecting box by mobile guide passage a and process, normal product is sheared in gathering sill b smoothly, and the product of afterbody is by divided in another gathering sill c.This processing method is applicable to the shearing of bar steel, and the band steel is because the width restriction can't frequently move away conveying raceway, so can not realize real-time shearing.
The method of mentioning in Chinese patent CN1358119A and US Patent No. 6698498B1 is the pinch roll rear portion interpolation shear arrangement at the thin strap continuous casting production line, in case the Cast Strip defect detector detects the Cast Strip defective, cutter work, the Cast Strip is cut into discrete length, and the scrap collecting tank that has arrangement for deflecting that the cut good part in Cast Strip is sent into along certain raceway, normally batch again after casting strip quality is stable, still by arrangement for deflecting, the Cast Strip is introduced in coiling machine.The method can guarantee Continuous Casting Stability, can eliminate the mass defect of Cast Strip.But huge structure implements a bit complicated.
The method of above-mentioned Cast Strip fracture and the maximum different zone differences that are the broken belt operation of the present invention, as described herein, if Cast Strip head quality is bad, the Cast Strip is difficult to be sent to the subsequent treatment operation, so, the method of mentioning in the present invention is at first will separate the Cast Strip head, guarantees that follow-up Cast Strip is entered next operation smoothly.Be that the present invention can improve and is cast into power.
Method described in US Patent No. 2004104006A1, WO02076655A1 is to utilize fixing casting rate and the relation between the thickness of Cast Strip, pace of change when needs disconnect the Cast Strip, deficiency broken belt under the effect of own wt is solidified in the Cast Strip, avoid with external equipment, the Cast Strip being sheared, the method is fine, but controls more complicated, and the Cast Strip band head shapes that obtains as the method certainly will be very poor, be unfavorable for that the Cast Strip imports subsequent handling, easily causes and casts unsuccessfully.
Method described in US Patent No. 5690163 and US5187912 is during casting, and casting rate is constant, makes the Cast Strip rupture owing to solidifying deficiency by become large roll gap within specific one period short time.Similar with top method, but still exist the uncontrollable problem of end of extruded band shape, be unfavorable for that the Cast Strip imports subsequent handling.And this method need to change speed or the roll gap of crystallization roll frequently, and harmful effect is arranged service life stable for casting and side seal board.
Above-mentioned patent utilization changes the method for casting process parameter and carries out the Cast Strip cutting operation, is difficult to control the quality of tube cutting at broken belt place; And easily cause the casting equipment damage and affect casting system unstable.The present invention can avoid the casting equipment damage, does not affect casting cycle stability.
Description of drawings
Fig. 1 is the thin band continuous casting technique schematic diagram.
Fig. 2 is active broken belt and Cast Strip guider control principle drawing in the present invention.
Fig. 3 is the work schematic diagram of broken belt and Cast Strip guider during normal casting in the present invention.
Fig. 4 is the work schematic diagram of broken belt and Cast Strip guider during broken belt initiatively in the present invention.
Fig. 5 is the work schematic diagram of broken belt and Cast Strip guider after active break band of the present invention.
Fig. 6 is the nozzle operation position view of tape cutter during broken belt initiatively in the present invention.
The specific embodiment
Further describe technical scheme of the present invention below by two embodiment.
Operating mode one, casting machine initiatively broken belt are removed bad Cast Strip head and the direct casting of quality
Referring to Fig. 2～Fig. 6, enter the casting pattern, be arranged on the continuous situation of the broken belt checkout gear 15 Real-Time Monitoring Cast Strips of casting roll for strip continuous casting below, and will detect data and flow to band steel guiding control module 23, the swing guide 16 of this moment is in its lower limit, and its position records and controls by servo valve 27 by being positioned at its displacement transducer 26 that drives hydraulic cylinder 25 rear portions.
after casting Cast Strip continuous length surpasses 10m, hydraulic cylinder 18, 18 ' at servo valve 28, promote left and right gas injection apparatus 17 under 28 ' effect, 17 ' to moving near the Cast Strip direction, be that the 100mm place stops mobile in the nozzle distance Cast Strip, and beginning inject high pressure argon gas (Ar), gas work strength 1.3MPa, be with simultaneously steel guiding control module 23 to send instruction to frequency converter 21, 21 ' orders about motor 22, 22 ' drives tube-shaped sputtering device 17, 17 ' rotates around tracheae self axis in opposite directions from its initial position (nozzle horizontal positioned), the position that makes gas nozzle be injected in the surface, Cast Strip remains unchanged, until rupture rapidly in the Cast Strip, as Fig. 3, injection apparatus maximum rotation angle is 45 °.
if injection apparatus has gone to its maximum spray angle, and broken belt checkout gear 15 does not detect the Cast Strip break signal, be with steel guiding control module 23 to send instruction to frequency converter 21, 21 ' orders about motor 22, 22 ' drives tube-shaped sputtering device 17, 17 ' rotates in opposite directions around self axis rapidly and returns to initial position, and again spray argon gas, operating pressure increases to 1.5MPa, namely spray the surface, Cast Strip with the operating pressure of 1.5MPa, while tube-shaped sputtering device 17, 17 ' rotates around the tracheae axis in opposite directions from its initial position (nozzle horizontal positioned), the position that makes gas nozzle be injected in the surface, Cast Strip remains unchanged.After broken belt checkout gear 15 detects the Cast Strip break signal, it gives band steel guiding control module 23 with the broken belt signal feedback, the latter sends instruction to servo valve 27 and orders about hydraulic cylinder 25 and drive swing guides 16 and be raised up to its upper limit, and the position is detected by displacement transducer 26 and fed back to the band steel control module 23 that leads.Simultaneously, band steel guiding control module 23 moves to deviating from the Cast Strip direction by the tube-shaped sputtering device 17,17 ' that servo valve 28,28 ' drives hydraulic cylinder 18,18 ' drive arranged on left and right sides, it is mobile in the nozzle distance Cast Strip to be that the 1m place stops, and its shift position is detected by displacement transducer 19,19 ' and fed back to band steel guiding control module 23; This moment, the operating air pressure of gas jet was 0.3MPa, as the protective gas of confined chamber under casting machine; Be with simultaneously steel guiding control module 23 to send instruction and drive tube-shaped sputtering device 17,17 ' to frequency converter 21,21 ' drive motors 22,22 ' and rotate in opposite directions around self axis and return to its initial position, wait for broken belt operation next time.
Thereafter the Cast Strip enters the subsequent delivery roller-way through swing guide 16, as Fig. 4.After entering coiling machine, band steel guiding control module 23 is sent instruction and is ordered about hydraulic cylinder 25 to servo valve 27 and drive swing guides 16 and be lowered into its lower limit, and as shown in Figure 5, the Cast Strip forms kink between swing guide 16 and casting roll 1a, 1b, enters and stablizes the casting state.
Operating mode two, casting machine initiatively broken belt are used for switching coiler mandrel
When upper Cast Strip curling being near completion, the rollgang at main frame rear portion accelerates, and reduces the kink amount.Then the Cast Strip alignment control system repeats the active broken belt flow process in operating mode one and continues casting, until casting finishes.
Claims (9)
1. thin strap continuous casting broken belt and keep the method for direct casting initiatively, below casting roll for strip continuous casting centered by vertical Cast Strip left and right two covers initiatively tape cutters, a cover Cast Strip broken belt detection system and the cover Cast Strip guider of being symmetrical arranged; Described active tape cutter comprise can gas jet tube-shaped sputtering device and driving mechanism thereof, the tube-shaped sputtering device is the tracheae that a cover is equipped with gas nozzle, gas leads to each nozzle by tracheae, the tube-shaped sputtering device moves close under the effect of hydraulic cylinder or deviates from the Cast Strip, and tube-shaped sputtering device axis around tracheae under driven by motor rotates; In strip casting process, at the casting initial stage, initiatively tape cutter makes Cast Strip head fracture, separates with follow-up continuous Cast Strip, removes quality bad Cast Strip head; And curling complete in the Cast Strip, when coiling machine need to switch reel, initiatively tape cutter made the Cast Strip fracture in the casting machine exit, and then matching with the Cast Strip guider by Cast Strip broken belt detection system to move makes the Cast Strip be curled continuously.
2. thin strap continuous casting as claimed in claim 1 broken belt and keep the method for direct casting initiatively, is characterized in that, initiatively the method for broken belt is to adopt gas directly to spray the Cast Strip in the casting machine exit.
3. thin strap continuous casting as claimed in claim 1 broken belt and keep the method for direct casting initiatively, it is characterized in that, during the broken belt operation, two tube-shaped sputtering devices are mobile near the Cast Strip simultaneously, nozzle is to Cast Strip inject high pressure gas when the 50-200mm scope of nozzle distance Cast Strip, aero operating pressure is 0.7-2MPa, and two tube-shaped sputtering devices opposite direction rotating under driven by motor, be injected in gas on same position, surface, Cast Strip gas nozzle all the time simultaneously.
4. as claim 1 or 2 or 3 described thin strap continuous castings broken belts and keep the method for direct casting initiatively, it is characterized in that, described gas is nitrogen or argon gas.
5. thin strap continuous casting as claimed in claim 1 broken belt and keep the method for direct casting initiatively, is characterized in that, the spray angle of described gas nozzle is 10 °-20 °, and spray regime is the ribbon zone, and the jeting area of injection apparatus is greater than maximum Cast Strip width.
6. as claim 1 or 3 or 5 described thin strap continuous castings broken belts and keep the method for direct casting initiatively, it is characterized in that, jet zone on the tube-shaped sputtering device of the same side between adjacent gas nozzle is overlapped, overlapping range surpasses 30% of single-nozzle projected area, the nozzle interlaced arrangement on the injection apparatus of the left and right sides.
7. thin strap continuous casting as claimed in claim 1 broken belt and keep the method for direct casting initiatively, it is characterized in that, described Cast Strip broken belt detection system is a cover line sweep belt steel temperature checkout gear, along going out the below that is arranged on injection apparatus with direction, before casting operation begins, it has begun to carry out Cast Strip surface temperature detection, it detects and processes once the temperature data of whole Cast Strip width in 0.1s, in casting cycle, the Cast Strip guider is taked corresponding action according to its testing result.
8. thin strap continuous casting as claimed in claim 1 broken belt and keep the method for direct casting initiatively, it is characterized in that, described Cast Strip broken belt detection system is the infrared temperature scanning means, real-time table surface temperature for detection of the Cast Strip, if the generation broken belt, its temperature fluctuation meeting that detects is very large, if the temperature fluctuation in two continuous temperature sense cycle is greater than 700 ℃, be judged as the Cast Strip and rupture, a Cast Strip temperature detection cycle is 0.1s.
9. thin strap continuous casting as claimed in claim 1 broken belt and keep the method for direct casting initiatively, it is characterized in that, described Cast Strip guider is the swingable guide agency that a cover adopts hydraulic cylinder to control, and its needs along with casting operation can move two positions to its upper limit and the lower limit; When it was in upper limit, the non-oscillation end of swing guide surpassed the i.e. roll gap center line 50-100mm between two casting rolls of vertical casting center line; When swing guide was in lower limit, the Cast Strip was when forming maximum kink, and the kink curve is the free loop curve, and namely the shape of kink curve is not subjected to the constraint of swing guide.
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| CN 201010211307 CN102294449B (en) | 2010-06-25 | 2010-06-25 | Method for active strip breaking and continuous casting keeping of strip continuous casting |
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| CN 201010211307 CN102294449B (en) | 2010-06-25 | 2010-06-25 | Method for active strip breaking and continuous casting keeping of strip continuous casting |
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| CN102294449B true CN102294449B (en) | 2013-06-19 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103182490B (en) * | 2011-12-30 | 2015-07-22 | 宝山钢铁股份有限公司 | Method and control system for twin-roll thin strip continuous casting |
| CN103182491B (en) * | 2011-12-30 | 2015-08-26 | 宝山钢铁股份有限公司 | A kind of free loops by thin-strip continuous casting control method and device |
| RU2722550C1 (en) * | 2017-02-23 | 2020-06-01 | Прайметалс Текнолоджис Джапан, Лтд. | Device for continuous casting of strip |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5690163A (en) * | 1995-09-19 | 1997-11-25 | Ishikawajima-Harima Heavy Industries Company Limited | Strip casting |
| CN1297793A (en) * | 1999-04-08 | 2001-06-06 | 摩根建设公司 | High-speed flying shears |
| CN1358119A (en) * | 1999-04-08 | 2002-07-10 | 卡斯特里普公司 | Casting strip |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITUD20010058A1 (en) * | 2001-03-26 | 2002-09-26 | Danieli Off Mecc | CUTTING PROCEDURE OF A TAPE IN THE CASTING PHASE |
| AT501044B8 (en) * | 2004-10-29 | 2007-02-15 | Voest Alpine Ind Anlagen | METHOD FOR PRODUCING A CAST STEEL STRIP |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5690163A (en) * | 1995-09-19 | 1997-11-25 | Ishikawajima-Harima Heavy Industries Company Limited | Strip casting |
| CN1297793A (en) * | 1999-04-08 | 2001-06-06 | 摩根建设公司 | High-speed flying shears |
| CN1358119A (en) * | 1999-04-08 | 2002-07-10 | 卡斯特里普公司 | Casting strip |
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