CN107790657A - Big camber radius plectane base compatibility conticaster and its technique - Google Patents
Big camber radius plectane base compatibility conticaster and its technique Download PDFInfo
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- CN107790657A CN107790657A CN201710996501.3A CN201710996501A CN107790657A CN 107790657 A CN107790657 A CN 107790657A CN 201710996501 A CN201710996501 A CN 201710996501A CN 107790657 A CN107790657 A CN 107790657A
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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
- B22D11/14—Plants for continuous casting
- B22D11/142—Plants for continuous casting for curved casting
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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
- B22D11/16—Controlling or regulating processes or operations
- B22D11/18—Controlling or regulating processes or operations for pouring
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Abstract
The present invention discloses a kind of big camber radius round billet slab compatibility conticaster and its technique, it is therefore an objective to can produce macrostructure, the continuous casting steel billet that density reaches quality standards.Equipment aspect is that the round billet sections of 16.5m big cross sections φ 600/700/800 increase camber radius is 16.485m in existing radius, and section is 200mm × (550~850) mm slab casters；By being formed after the tundish of round billet continuous casting machine, crystallizer, fan-shaped section, two cold steam discharges, withdrawal straightening machine, the transformation of automated procedures man-machine interface；Process aspect design tundish immersed nozzle position, crystallizer size and taper value, slab fan-shaped section opening degree, adjustment strand allow pulling rate, secondary cooling parameter and mode, secondary cooling water mouth zoning arrangement, change withdrawal straightening machine pressure.The present invention realizes more section conversion cast, and 7.924t/m is up to through measuring slab continuous casting billet density3, far above the 7.850t/m of conventional plate blank3；Macrostructure center porosity is not more than 1.5 grades, and middle crack is not more than 1.5 grades.
Description
Technical field
The invention belongs to steel production continuous casting installation for casting field, be related to a kind of big camber radius round billet slab compatibility conticaster and
Its technique.
Background technology
For normal slab caster type with vertical bending type, arc radius is based on 6m~10m.Existing conticaster produces section
The round billet continuous casting machines of φ 600/700/800, its production type are round billet, design production capacity 50Wt/.
According to the market demand, big camber is now needed to possess 200mm × (550~850) mm slabs production capacity, design production capacity
Reach 50Wt/ conticaster.Home and abroad there is no the pass of big camber plectane base compatibility conticaster mutually to report.
The content of the invention
The present invention discloses a kind of big camber radius round billet slab compatibility conticaster and technique, it is therefore an objective to using this compatible continuous casting
Machine and the continuous casting steel billet that process matched therewith can produce macrostructure, density reaches quality standards.
Technical scheme, equipment aspect are that the round billet sections of 16.5m big cross sections φ 600/700/800 increase camber in existing radius
Radius is 16.485m, and section is 200mm × (550~850) mm slab casters, by converting different crystallizer passes and attached
Category facility realizes round billet production compatible with slab；
The compatible conticaster is by the tundish of round billet continuous casting machine, crystallizer, fan-shaped section, two cold row's steam, withdrawal straightening machine, fire
Formed after cutting machine, ejection roller way, dummy bar, off-line device, the transformation of automated procedures man-machine interface；
The compatible continuous casting tundish is (1) in order to ensure that invasive nozzle is in rectangular crystallizer center, rectangular bloom
Interior outer arc spacing center and round billet centre deviation 180mm, therefore (5) former round billet mouth of a river position is moved forward 180mm slabs to after transforming
(4), (3) former round billet mouth of a river center line moves to transformation after (2) slab mouth of a river center line, changes tundish immersion water for mouth of a river position
Mouth position, delivery port cross section (see Fig. 1)；
The design and manufacture of the compatible conticaster plate slab crystallizer, will based on retaining large round billet conticaster crystallizer
(6) (8) the crystalliser of plate slab crystallizer (7) is fixed on original large round billet continuous casting machine crystallizer vibration platform frame by connecting bolt
(9) it is upper (see Fig. 2), ensure the fast and convenient replacing of crystallizer；Plate slab crystallizer, section is 200mm × (550~850) mm, wide
Degree is offline adjustable, offline to adjust wide action；Plate slab crystallizer is consistent with original vibration interface, and the wide face of plate slab crystallizer is bolted
In crystalliser, wide face foot roller is fixed in crystalliser；Narrow copper plate is bolted on " plug-in type " support
On plate, narrow-face foot roller and nozzle are fixed in leptoprosopy supporting plate；
The compatible continuous casting machine fan-shaped segment is installed a set of overall slab 1＆2 sectors and led in one section of round billet sector, two fragment positions
To section；Fan-shaped 3~5 sections of similar fan-shaped 1＆2 sections design forms are corresponded with round billet section sequence, and overall shrinkage roller is arranged (see Fig. 3)；
The compatible continuous casting machine tension leveling machine uses multipoint straightening, that is, utilizes the 3 of round billet continuous casting machine, 4,5,7,9,15 frame straightenings
Machine participates in the throwing and straightening operation of slab, wherein 15 framves increase roller set, do not change miscellaneous part to send dummy ingot sortie；Slab
And round billet thickness deviation is larger, hydraulic cylinder changing is carried out to used withdrawal straightening machine sortie；Improved withdrawal straightening machine in view of
Reducing motor installation site is relatively low and upper roller stroke increases, and causes Hooks coupling universal coupling bending offset angle inadequate, to straightening motor
Setting height(from bottom) adjusts, and realizes compatible production；Reprogram control (see figure to depressing force needed for slab production and using sortie
4), implementation pattern switching automatically adjusts；
The compatible conticaster fire cuts machine and improves and optimizates imitative arc cutting process, increases slab operation interface, and fire cuts machine ginseng
Number setting interface (see Fig. 5), realizes that different section, different cutting curves can operate, single rifle and rush-harvesting and rush-planting can cut slab；
The compatible ejection roller way of continuous casting machine is substantially carried out rollgang and is oriented to transformation, because slab, round billet base type are different,
Need a kind of guider of compatible two kinds of production models, movable adjustable spacing is oriented to using original navigation designing；
The compatible dummy bar of continuous casting machine uses chain dumming bar, and detection mode uses Grating examinations, and profile uses slab
Pass structure；
The compatible conticaster off-line device increases the offline centering of slab and verifying attachment newly；
The related control program of section and man-machine picture are increased newly after the compatible conticaster automated procedures man-machine interface transformation
Face：The main patten transformation for including slab caster, the chain control of slab caster, the roll gap adjustment of withdrawal straightening machine, HMI are drawn
Face increases section selection, as shown in fig. 6, sending dummy ingot, throwing, dummy bar storage Automated condtrol program and HMI pictures to repair automatically
Change；Increase automatically controlled two cold water spray equipment and instrument facility and the corresponding HMI pictures of modification and controlling curve.
Generally empirically determine that casting machine radius R is with thickness H relations：R=(40~50) H.For the thick slabs of 200mm
For section, domestic conventional plate blank conticaster arc radius is 40~50 times of thickness, thus arc radius 8m~10m it
Between, it disclosure satisfy that mass property requirement.And the conticaster radius R of northeast special steel group Dalian special steel steel mill transformation is thickness
82.425 times of H, far beyond the design concept of conventional plate blank.Slab caster arc radius is bigger, and casting machine highly increases, and throws
Money construction cost is higher, because the static pressure of molten steel becomes big, easily causes bulge deformation, straightening deformation problem, but casting machine radius increases
Greatly, the larger static pressure of molten steel, the consistency of strand can increase, and be advantageous to the control of product quality.
Technical scheme, process aspect design tundish immersed nozzle position, crystallizer size and taper value, slab fan
Shape section opening degree, adjustment strand allow pulling rate, secondary cooling parameter and mode, secondary cooling water mouth zoning arrangement parameter, change straightening
Machine pressure value.
180mm is moved into bale panoramic tables direction in the round billet middle water containing opening position of middle bag tank, changes tundish and immerses
Formula mouth of a river position；
Offline to adjust crystallizer width, taper value, mouth width, taper are depending on needed for steel grade and cooling meat under crystallizer
Width of plate slab, calculated by mouth width (A)=cold conditions width of plate slab × 1.013 under crystallizer；Crystallizer leptoprosopy taper takes
Certainly in width of plate slab and crystallizer operation condition, for new crystallizer, 1% width of plate slab is can adjust on crystallizer base, i.e.,
Taper is 1%；
Slab fan-shaped section corresponds with round billet section sequence, is divided into 5 fan-shaped sections, and each section imports and exports size Control such as table 1
Table 1
| Measure roller | 200 (mm) are thick |
| Fan-shaped section 1＆2 (the 1st two pairs of rollers) | 206.6±0.15 |
| Fan-shaped section 1＆2 (the 13rd two pairs of rollers) | 205.5±0.15 |
The (Continued) of table 1
| Measure roller | 200 (mm) are thick |
| Fan-shaped section 3 (the 1st two pairs of rollers) | 205.5±0.15 |
| Fan-shaped section 3 (the 10th two pairs of rollers) | 204.8±0.15 |
| Fan-shaped section 4 (the 1st two pairs of rollers) | 204.8±0.15 |
| Fan-shaped section 4 (the 10th two pairs of rollers) | 204.3±0.15 |
| Fan-shaped section 5 (the 1st two pairs of rollers) | 204.3±0.15 |
| Fan-shaped section 5 (the 10th two pairs of rollers) | 204.0±0.15 |
Casting blank specification allows pulling rate scope such as table 2.
Table 2
Secondary cooling parameter, secondary coolingwater are set according to the difference of alloying element in cast steel grade, and specific water's regulation should
Control is in 0.4l/kg~0.8l/kg；5 sections of zonal controls are pressed in Secondary Cooling Zone of Continuous Caster water spray area, i.e.,：Zu Gunkuanmian areas (two cold 1
Area W), Zu Gun leptoprosopy area (two cold 1st area N, utilizing the former area's shower water of large round billet one), the top of fan-shaped section 1 and 2 (two cold 2nd areas), fan-shaped
1 and 2 bottoms of section (two cold 3rd areas), fan-shaped section 3 (two cold 4th areas), fan-shaped section 4 and fan-shaped section 5 (two cold 5th areas)；Each area's water is according to pouring
The difference of steel grade and pulling rate is noted, distribution intensity is also different, and after casting steel grade determines, each area's water changes according to pulling rate, presses
Certain specific water automatically adjusts.
Secondary cooling uses shower water or the aerosol type of cooling, makes the slab cooling in casting process equal by Controlling model
Even, temperature recovery is small, and thermo parameters method is as shown in Figure 7；Secondary cooling water mouth zoning arrangement such as table 3.
Table 3
| Subregion | Position | Methods for cooling |
| 1 area N | Crystallizer narrow-face foot roller | Shower water |
| 1 area W | The wide face foot roller of crystallizer | Shower water |
| 2nd area | Fan-shaped section 1＆2 tops | Aerosol cools down |
The (Continued) of table 3
| Subregion | Position | Methods for cooling |
| 3rd area | Fan-shaped section 1＆2 bottoms | Aerosol cools down |
| 4th area | Fan-shaped section 3 | Aerosol cools down |
| 5th area | Fan-shaped section 4~5 | Aerosol cools down |
Withdrawal straightening machine uses multipoint straightening, wherein the 3rd, 4,5 frame withdrawal straightening machine dummy bar clamping pressures are 350kN；7th, 9,15 frame
Withdrawal straightening machine dummy bar clamping pressure is 750kN；The all 150kN of service pressure.
The present invention realizes more section conversion cast, and 7.924t/m is up to through measuring slab continuous casting billet density3, far above routine
The 7.850t/m of slab3；Macrostructure center porosity is not more than 1.5 grades, and middle crack is not more than 1.5 grades.
Brief description of the drawings
Fig. 1 is delivery port schematic cross-sectional view；
Fig. 2 is that crystallizer and shake table are self-contained；
Fig. 3 is that fan-shaped guide section shrinks roller row；
Fig. 4 is that straightening machine equipment Stress control sets panel；
Fig. 5 is that fire cuts machine-cut and cuts parameter surface plate；
Fig. 6 plectane pattern switching interface buttons；
Fig. 7 is the thermo parameters method (pulling rate 0.8m/min) of strand；
Fig. 8 is horizontal macrostructure picture；
Fig. 9 is horizontal macrostructure picture；
Figure 10 is horizontal macrostructure picture.
Icon explanation：Tundish 1, slab mouth of a river center line 2 after transformation, former round billet mouth of a river center line 3, slab water after transformation
Mouth position 4, former round billet mouth of a river position 5, crystalliser 6, crystallizer 7, connecting bolt 8, vibrates stand 9.
Embodiment
Embodiment 1
The strand density measure produced using big bow type continuous casting machine, continuous casting billet specification 200mm × 550mm：
The trade mark：Q345, quantity：32.
Pouring technology：Pulling rate：0.85m/min, specific water：0.40L/kg；
Continuous casting billet is weighed (minimum claims 20kg) using chassis, and 32 continuous casting billets, it is close to be calculated strand altogether
Spend for 7.924t/m3.The length of strand corresponds to density such as table 4.
Table 4
| Sequence number | Length (m) | Weight (t) | Density t/m3 | Sequence number | Length (m) | Weight (t) | Density t/m3 |
| 1 | 6.05 | 5.26 | 7.904 | 17 | 5.99 | 5.22 | 7.922 |
| 2 | 6.37 | 5.54 | 7.906 | 18 | 5.88 | 5.14 | 7.947 |
| 3 | 6.07 | 5.3 | 7.938 | 19 | 6.03 | 5.24 | 7.9 |
| 4 | 6.04 | 5.26 | 7.917 | 20 | 6.66 | 5.82 | 7.944 |
| 5 | 6.22 | 5.42 | 7.922 | 21 | 5.89 | 5.14 | 7.933 |
| 6 | 6.05 | 5.28 | 7.934 | 22 | 7.35 | 6.42 | 7.941 |
| 7 | 6.05 | 5.26 | 7.904 | 23 | 6.92 | 6.02 | 7.909 |
| 8 | 6.13 | 5.34 | 7.919 | 24 | 5.65 | 4.92 | 7.916 |
| 9 | 6.06 | 5.28 | 7.921 | 25 | 6.08 | 5.3 | 7.925 |
| 10 | 6.07 | 5.28 | 7.908 | 26 | 6.07 | 5.3 | 7.938 |
| 11 | 5.62 | 4.9 | 7.926 | 27 | 5.84 | 5.08 | 7.908 |
| 12 | 6.37 | 5.54 | 7.906 | 28 | 6.12 | 5.34 | 7.932 |
| 13 | 6.37 | 5.54 | 7.906 | 29 | 6.58 | 5.76 | 7.958 |
| 14 | 5.81 | 5.06 | 7.917 | 30 | 5.95 | 5.2 | 7.945 |
| 15 | 6.07 | 5.3 | 7.938 | 31 | 6.04 | 5.26 | 7.917 |
| 16 | 6.09 | 5.3 | 7.912 | 32 | 6.04 | 5.28 | 7.947 |
Embodiment 2
Continuous casting billet, continuous casting billet specification are produced using big circular-arc type continuous casting machine：200mm×550mm.
The trade mark：Q345-1, sample：17112052838-101,
Pouring technology：Pulling rate：0.85m/min, specific water：0.40L/kg；
Continuous casting billet transverse direction macrostructure rank:As shown in Figure 8：Middle pine：1.5 level.
Embodiment 3
Continuous casting billet, continuous casting billet specification are produced using big circular-arc type continuous casting machine：200mm×850mm.
The trade mark：Q345-1, sample：17112052971-101,
Pouring technology：Pulling rate：0.80m/min, specific water：0.40L/kg；
Continuous casting billet transverse direction macrostructure rank:As shown in Figure 9：Middle pine：1.5 level.
Embodiment 4
Continuous casting billet, continuous casting billet specification are produced using big circular-arc type continuous casting machine：200mm×840mm.
The trade mark：Q345+Cr+V, sample：17112052966-208
Pouring technology：Pulling rate：0.85m/min, specific water：0.40L/kg；
Continuous casting billet transverse direction macrostructure rank:As shown in Figure 10：Middle pine：1.0 grades, 1.0 grades of middle crack.
Claims (3)
- A kind of 1. big camber radius round billet slab compatibility conticaster, it is characterised in that：It is 16.5m big cross sections φ in existing radius 600/700/800 round billet section increase camber radius is 16.485m, and section is 200mm × (550~850) mm slab casters, Round billet production compatible with slab is realized by converting different crystallizer passes and affiliated facility.
- 2. big camber radius round billet slab compatibility conticaster according to claim 1, it is characterised in that：By round billet continuous casting machine Tundish, crystallizer, fan-shaped section, two cold row's steam, withdrawal straightening machine, fire cut machine, ejection roller way, dummy bar, off-line device, automation Formed after the transformation of program man-machine interface；The compatible continuous casting tundish is (1) in order to ensure that invasive nozzle is in rectangular crystallizer center, inside and outside rectangular bloom Arc spacing center and round billet centre deviation 180mm, therefore (5) former round billet mouth of a river position is moved forward 180mm slab mouths of a river to after transforming (4), (3) former round billet mouth of a river center line moves to transformation after (2) slab mouth of a river center line, changes tundish immersed nozzle position for position Put；The design and manufacture of the compatible conticaster plate slab crystallizer are based on retaining large round billet conticaster crystallizer, by slab The crystalliser of crystallizer (7) be (6) (8) fixed on by connecting bolt original large round billet continuous casting machine crystallizer vibration platform frame (9) on, Ensure the fast and convenient replacing of crystallizer；The compatible continuous casting machine fan-shaped segment installs a set of overall 1 and 2 fan-shaped guide section of slab in one section of round billet sector, two fragment positions Shrink roller row；Fan-shaped 3~5 sections of similar fan-shaped 1＆2 sections, design form correspond with round billet section sequence；The compatible continuous casting machine tension leveling machine uses multipoint straightening, i.e., is joined using the 3 of round billet continuous casting machine, 4,5,7,9,15 frame withdrawal straightening machines With the throwing and straightening operation of slab, wherein 15 framves are to send dummy ingot sortie, increase roller set, do not change miscellaneous part；Slab and circle Base thickness deviation is larger, and hydraulic cylinder changing is carried out to used withdrawal straightening machine sortie；Improved withdrawal straightening machine is in view of slow down Mounting position of motor is relatively low and upper roller stroke increases, and causes Hooks coupling universal coupling bending offset angle inadequate, straightening motor is installed Highly adjust, realize compatible production；Carry out reprograming control to depressing force needed for slab production and using sortie, withdrawal straightening machine is set Standby Stress control sets implementation pattern to switch and automatically adjusted；The compatible conticaster fire cuts machine and improves and optimizates imitative arc cutting process, increase slab operation interface, realize different section, Different cutting curves can operate, and single rifle and rush-harvesting and rush-planting can cut slab；The compatible ejection roller way of continuous casting machine is substantially carried out rollgang and is oriented to transformation, due to slab, round billet base type it is different, it is necessary to A kind of guider of compatible two kinds of production models, using original navigation designing, movable adjustable spacing is oriented to；The compatible dummy bar of continuous casting machine uses chain dumming bar, and detection mode uses Grating examinations, and profile uses slab pass Structure；The compatible conticaster off-line device increases the offline centering of slab and verifying attachment newly；The related control program of section and man-machine picture are increased newly after the compatible conticaster automated procedures man-machine interface transformation：It is main To include the patten transformation of slab caster, the chain control of slab caster, the roll gap adjustment of withdrawal straightening machine, the increasing of HMI pictures Add section selection, send dummy ingot, throwing, dummy bar storage Automated condtrol program and HMI picture modifications automatically；Increase by two cold water sprays Equipment is automatically controlled and instrument facility and the corresponding HMI pictures of modification and controlling curve.
- 3. the technique of big camber radius round billet slab compatibility conticaster according to claim 1 or claim 2, it is characterised in that：Design Tundish immersed nozzle position, crystallizer size and taper value, slab fan-shaped section opening degree, adjustment strand permission pulling rate, Secondary cooling parameter and mode, secondary cooling water mouth zoning arrangement parameter, change withdrawal straightening machine and pressure value；80mm is moved to bale panoramic tables direction in the mouth of a river position of the round billet tundish；The crystallizer width, taper value, mouth width A=cold conditions width of plate slab × 1.013 under crystallizer；Crystallizer leptoprosopy taper For 1%；The slab fan-shaped section corresponds with round billet section sequence, is divided into 5 fan-shaped sections, and each section imports and exports size Control such as table 1Table 1
Measure roller 200 (mm) are thick Fan-shaped section 1 and 2, the 1st two pairs of rollers 206.6±0.15 Fan-shaped section 1 and 2, the 13rd two pairs of rollers 205.5±0.15 The two pairs of rollers of fan-shaped section the 3, the 1st 205.5±0.15 The two pairs of rollers of fan-shaped section the 3, the 10th 204.8±0.15 The two pairs of rollers of fan-shaped section the 4, the 1st 204.8±0.15 The two pairs of rollers of fan-shaped section the 4, the 10th 204.3±0.15 The two pairs of rollers of fan-shaped section the 5, the 1st 204.3±0.15 The two pairs of rollers of fan-shaped section the 5, the 10th 204.0±0.15 The casting blank specification allows pulling rate scope such as table 2；Table 2The secondary cooling parameter, specific water's adjustment control is in 0.4l/kg~0.8l/kg；Press 5 in Secondary Cooling Zone of Continuous Caster water spray area Section zonal control：Zu Gunkuanmian areas are two cold 1st area W；Zu Gun leptoprosopy area is two cold 1st area N, utilizes the former area's shower water of large round billet one； The top of fan-shaped section 1 and 2 is two cold 2nd area；The bottom of fan-shaped section 1 and 2 is two cold 3rd area；Fan-shaped section 3 is two cold 4th area；Fan-shaped section 4 and fan Shape section 5 is two cold 5th area；For each area's water according to the difference of cast steel grade and pulling rate, distribution intensity is also different, is determined in casting steel grade Afterwards, each area's water changes according to pulling rate, is automatically adjusted by certain specific water；Secondary cooling uses shower water or aerosol cooling side Formula；The secondary cooling water mouth zoning arrangement such as table 3；Table 3Subregion Position Methods for cooling 1 area N Crystallizer narrow-face foot roller Shower water 1 area W The wide face foot roller of crystallizer Shower water 2nd area Fan-shaped section 1＆2 tops Aerosol cools down 3rd area Fan-shaped section 1＆2 bottoms Aerosol cools down 4th area Fan-shaped section 3 Aerosol cools down 5th area Fan-shaped section 4~5 Aerosol cools down The withdrawal straightening machine uses multipoint straightening, wherein the 3rd, 4,5 frame withdrawal straightening machine dummy bar clamping pressures are 350kN；7th, 9,15 frame Withdrawal straightening machine dummy bar clamping pressure is 750kN；The all 150kN of service pressure.
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| CN109332622A (en) * | 2018-11-19 | 2019-02-15 | 中冶连铸技术工程有限责任公司 | The wide slab continuous casting machine production line of the straight arc of multithread |
| CN109807296A (en) * | 2019-03-19 | 2019-05-28 | 宁波中超机器有限公司 | Automate continuous casting billet Casting Equipment |
| CN112151129A (en) * | 2020-09-01 | 2020-12-29 | 河钢乐亭钢铁有限公司 | Technological method for accurately setting width dimension of lower opening of continuous casting slab crystallizer |
| CN114472821A (en) * | 2020-11-13 | 2022-05-13 | 上海梅山钢铁股份有限公司 | Calibration method for opening degree of streamline roll gap in continuous casting of plate blank |
| CN115415489A (en) * | 2022-09-05 | 2022-12-02 | 东北大学 | Aluminum/aluminum alloy thin slab continuous casting equipment and process |
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| CN109332622A (en) * | 2018-11-19 | 2019-02-15 | 中冶连铸技术工程有限责任公司 | The wide slab continuous casting machine production line of the straight arc of multithread |
| CN109807296A (en) * | 2019-03-19 | 2019-05-28 | 宁波中超机器有限公司 | Automate continuous casting billet Casting Equipment |
| CN112151129A (en) * | 2020-09-01 | 2020-12-29 | 河钢乐亭钢铁有限公司 | Technological method for accurately setting width dimension of lower opening of continuous casting slab crystallizer |
| CN112151129B (en) * | 2020-09-01 | 2022-07-12 | 河钢乐亭钢铁有限公司 | Technological method for accurately setting width dimension of lower opening of continuous casting slab crystallizer |
| CN114472821A (en) * | 2020-11-13 | 2022-05-13 | 上海梅山钢铁股份有限公司 | Calibration method for opening degree of streamline roll gap in continuous casting of plate blank |
| CN114472821B (en) * | 2020-11-13 | 2024-06-04 | 上海梅山钢铁股份有限公司 | Calibrating method for opening degree of flow line roll gap of slab continuous casting |
| CN115415489A (en) * | 2022-09-05 | 2022-12-02 | 东北大学 | Aluminum/aluminum alloy thin slab continuous casting equipment and process |
| CN115415489B (en) * | 2022-09-05 | 2024-02-13 | 东北大学 | Continuous casting equipment and process for aluminum/aluminum alloy sheet billet |
| CN116020987A (en) * | 2023-01-30 | 2023-04-28 | 东北特殊钢集团股份有限公司 | Continuous casting method of high alloy steel Cr12MoV series |
| CN116020987B (en) * | 2023-01-30 | 2024-05-10 | 东北特殊钢集团股份有限公司 | Continuous casting method of high alloy steel Cr12MoV series |
| CN117505790A (en) * | 2023-12-04 | 2024-02-06 | 中国重型机械研究院股份公司 | Design method of multifunctional continuous casting machine compatible with round billets, thick slabs and rectangular billets |
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