CN102107211A - Three-roller casting and rolling machine with feed nozzle doubling as crystallizer - Google Patents
Three-roller casting and rolling machine with feed nozzle doubling as crystallizer Download PDFInfo
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- CN102107211A CN102107211A CN2009102440912A CN200910244091A CN102107211A CN 102107211 A CN102107211 A CN 102107211A CN 2009102440912 A CN2009102440912 A CN 2009102440912A CN 200910244091 A CN200910244091 A CN 200910244091A CN 102107211 A CN102107211 A CN 102107211A
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Abstract
The invention discloses a three-roller casting and rolling machine with a feed nozzle doubling as a crystallizer. In the three-roller casting and rolling machine, a heat exchanger is arranged in the feed nozzle to pre-cool aluminum melt, so that the aluminum melt is in a solid-liquid state before entering casting and rolling rollers; and the defects of limited length and cooling strength of a casting and rolling region of a double-roller casting and rolling machine are completely overcome and the cooling effect of the casting and rolling machine is greatly improved in combination with a water mist cooling device on the outlet side of the rolling rollers. The three-roller casting and rolling machine is provided with an upper supporting roller, a middle rolling roller and a lower casting roller which are arranged from top to bottom, wherein the middle roller has a diameter which is one quarter to three quarters of the diameter of the lower roller and has a roller bending function; on-line shape control can be performed to improve plate shape accuracy; an upper nozzle plate on the feed nozzle is a movable nozzle plate, so that the feed nozzle is closed all the time during on-line adjustment of a roller gap, molten aluminum is prevented from being oxidized before entering the rolling rollers, and the product quality is improved; and by the machine, the defects of narrow product material range, high plate hardness, poor deep drawability, more pinholes, more edge cracks, easiness of strip breakage during foil rolling, low yield, low dimensional accuracy of the plate and the like existing in the prior art can be more effectively overcome.
Description
Technical field
The present invention relates to a kind of three-roll casting-rolling mill of producing metal slabs, more particularly, relate to a kind of improved the twin-roll cast-rolling mill roll casting conditions by molten metal, aluminium and the molten aluminium alloy feed mouth of the producing slab continuously three-roll casting-rolling mill of crystallizer of holding concurrently especially.
Background technology
Existing widely used pair of roller aluminum slab casting and rolling machine has two kinds of forms, and a kind of casting roller center line that is U.S. Hunter engineering company in 1962 proposes becomes the tilting casting and rolling machine of 15 ° of angles with horizontal line, see accompanying drawing 1; Another kind is the two roller horizontal casting and rolling machines of 3C (the Continuos Caster Between Cylinders) method of French Si Kaer (Scal) company development, sees accompanying drawing 2.
It mainly is to finish in the casting district between two casting rollers that casting and rolling machine is produced slab, the length in casting district is relevant with casting roller diameter, casting mode and process conditions etc., but the casting roller diameter plays a major role, increase the casting section length, strengthened film-cooled heat, and then can improve roll casting speed and increase thickness of slab, but be subjected to the restriction of casting roller diameter and limited this inherent feature of intensity of cooling, casting thickness is greater than 12mm, the solid-liquid two phase line temperature difference aluminium alloy greater than 45 ℃, and strand speed is very difficult greater than 1.5m/min.
The product thickness of at present two roller strip continuous castings is at 5～12mm, roll casting speed is at 0.8～1.5m/min, compare with hot rolling technology, also there is the product of production in casting-rolling technology: defective such as material ranges is narrow, sheet material hardness height (than hot rolling plate hight about 20%), deep drawing quality is bad, pin hole is many, limit portion crackle is many, easy broken belt, output and board dimension precision be low when paper tinsel rolled.
Chinese patent is day on August 13rd, 2008 openly, publication number CN 101239358A has announced a kind of " double-roller rolling one continuous hot rolling method and equipment ", its core is: on the basis of twin-roll cast-rolling mill, provide a kind of casting section length that enlarges markedly, improve the method for intensity of cooling, it is by designing a kind of eccentric reducing twin-roll cast-rolling mill, and cooperate the lip inclination angle 0 °～± 19 ° scope in arbitrarily the mechanism of adjusting realize.Roller diameter has certain offset less than following roller diameter on the casting and rolling machine between the upper and lower roll.Eccentric reducing casting roller cooperates corresponding lip inclination angle, a kind of increase casting region length is provided, and the method for minimizing rolling deformation district increasing degree, this method can be produced thicker cast-rolled block, it is at existing twin-roll cast-rolling mill cooled region length and the limited defective of intensity of cooling, the improvement of making, it can strengthen 1.8～4.0 times with the casting section length that has casting and rolling machine now, roll gap strengthens 1.5～2.5 times, roll casting speed improves 1.5～3.0 times, make strand continuously hot rolling in 301 ℃～510 ℃ scope, and the comprehensive process amount is controlled between 40～85%, thereby improve slab significantly: output, dimensional accuracy, mechanical performance, and enlarge product scope.
The invention of double-roller rolling one continuous hot rolling method and equipment has improved the intensity of cooling of casting and rolling machine, improved roll casting conditions, but its roll gap and plate shape can't onlinely be reconciled.The slab thickness of being produced, production capacity and alloy kind still do not reach the level of continuous casting and continuous rolling mill, more can't compare with hot-rolling mill.
For solving the problem of the online conciliation of twin-roll cast-rolling mill roll gap, Chinese patent is day on February 11st, 2009 openly, publication number CN 101362150A has announced a kind of " can regulate the twin-roll cast-rolling mill of roll gap arbitrarily ", it adopts a pair of novel casting roller and feed mouth, join with the proportional servo depress oil cylinder roll gap is carried out online adjusting, it can regulate roll gap on a large scale in the casting of aluminium and aluminum alloy slab is produced.It is characterized by: top roll is shorter than lower roll, semi open model feed mouth, roll gap can be by depress oil cylinder adjusting arbitrarily in the scope of 0.01～50mm.Semi open model feed mouth mainly is made of feed mouth body, time mouth plate, last mouth plate, two side plates and a pull bar etc., and following mouth plate is fixed on the feed mouth body, and an end of side plate is fixed on the feed mouth body, and the other end links to each other with pull bar.Last mouth plate can be a mainboard, also can be made of the plate of paying that a mainboard adds more than, and mainboard is fixed or is placed on the feed mouth body, pays plate and is placed on the side plate.The front end face of mouth plate contacts with lower roll surface under the feed mouth, and last mouth front edge of board face and last roll surface have certain clearance, and gap value is adjustable.The lower camber side of side plate contacts with lower roll surface, front end medial surface and top roll contacts side surfaces, and the pull bar by an adjustable side plate width between two side plates connects.The metal bath surface of feed mouth inside can not have the lower roll surface of top roll during production, thereby had strengthened the film-cooled heat of casting and rolling machine, had improved intensity of cooling, and then had improved roll casting speed, increased output.
Can regulate the twin-roll cast-rolling mill of roll gap arbitrarily, realized the online adjusting of roll gap, made the dynamic optimization between main power energy such as thickness of slab and roll-force, roll torque, the mill speed parameter become possibility, thereby improved output, reduce energy consumption, and improved the thickness and the plate shape precision of product.
Adopted semi open model feed mouth owing to can regulate the twin-roll cast-rolling mill invention of roll gap arbitrarily, increased the probability that aluminium liquid enters oxidation before the casting roller, influenced product quality, moreover the roller of twin-roll cast-rolling mill footpath is bigger, the online crooked difficulty of roll is big, weak effect, and the strand transverse plate shape precision of production is lower.
Summary of the invention
The objective of the invention is on the basis of twin-roll cast-rolling mill, CN 101239358A and two inventions of CN 101362150A, further increase casting region length and intensity of cooling, provide a kind of remarkable improvement rolling condition, the feed mouth of producing aluminium and the aluminum alloy slab three-roll casting-rolling mill of crystallizer of holding concurrently.Use the present invention can more effectively solve existing in prior technology: product material narrow range, sheet material hardness height, defective such as deep drawing quality is bad, pin hole is many, limit portion crackle is many, easy broken belt, output and board dimension precision be low when paper tinsel rolled.
In order to solve the problems of the technologies described above, the present invention has provided the hold concurrently three-roll casting-rolling mill of crystallizer of a kind of feed mouth, mainly comprise: roll, roll bearing box, frame, depress oil cylinder, preceding case, feed mouth, lubricating rollers mechanism and main drive, the hold concurrently three-roll casting-rolling mill of crystallizer of described feed mouth, three rolls are arranged, and the double crystallizer of doing of feed mouth.
The hold concurrently three-roll casting-rolling mill of crystallizer of described feed mouth, three rolls that are arranged above and below are arranged, top roll is a backing roll, backing roll inside has heat exchange structure, and the heat exchange structure of backing roll is by at the inner more than one slotted hole of processing of roll or have on the roller core of groove hot-mounted roll sleeve on the surface and realize; The hold concurrently three-roll casting-rolling mill of crystallizer of described feed mouth, three rolls that are arranged above and below are arranged, intermediate calender rolls is a Rolling roller, the intermediate calender rolls diameter is 1/4～3/4 of a following roller diameter, intermediate calender rolls is short than lower roll, its length can be made different sizes by the width specifications of slab, and intermediate calender rolls inside has heat exchange structure, and the heat exchange structure of working roll is by at the inner more than one slotted hole of processing of roll or have on the roller core of groove hot-mounted roll sleeve on the surface and realize; The hold concurrently three-roll casting-rolling mill of crystallizer of described feed mouth has three rolls that are arranged above and below, and intermediate calender rolls is a Rolling roller, and intermediate calender rolls has a cover roller mechanism, and roller mechanism is made of the oil cylinder that is installed on the bearing housing; The hold concurrently three-roll casting-rolling mill of crystallizer of described feed mouth, intermediate calender rolls is a Rolling roller, and intermediate calender rolls has a cover roller mechanism, and roller mechanism is made of the oil cylinder in projection that is installed in the framework window inboard and the projection; The hold concurrently three-roll casting-rolling mill of crystallizer of described feed mouth has three rolls that are arranged above and below, and intermediate calender rolls is a Rolling roller, is eccentric between intermediate calender rolls and the up-down rollers, its eccentricity value 0～± 120mm between; The hold concurrently three-roll casting-rolling mill of crystallizer of described feed mouth has three rolls that are arranged above and below, and intermediate calender rolls is a Rolling roller, and intermediate calender rolls is non-driving; The hold concurrently three-roll casting-rolling mill of crystallizer of described feed mouth, three rolls that are arranged above and below are arranged, the roll outlet side has the rack-mounted water smoke cooling device of a cover, the water smoke cooling device has upper and lower two spray beam, last spray beam is arranged between top roll and the intermediate calender rolls, and following spray beam is arranged near the lower roll.
The hold concurrently feed mouth of three-roll casting-rolling mill of crystallizer of described feed mouth comprises: feed mouth body, down the mouth plate, go up mouth plate, two side plates and a upper connecting rod, also be connected with a lower link between two side plates; Described feed mouth body is provided with heat exchanger, and heat exchanger has steam and cooling water switching mechanism; The described mouth plate of going up is provided with movable mouth plate, and movable mouth plate is made of spring feed mechanism and portable plate.The front end cambered surface of portable plate closely contacts with the intermediate calender rolls roll surface under the effect of spring all the time during production, and the inwall of the sidewall of portable plate and two side plates keeps relation movingly, and, the top relation movingly that also keeps of the following and last mouth plate of portable plate.
The invention provides the hold concurrently three-roll casting-rolling mill of crystallizer of a kind of feed mouth, heat exchanger in the production in the feed mouth can make aluminium liquid form solid-liquid two phases, enter the roll gap between intermediate rolling roller and the following casting roll, become slab through the further crystallisation by cooling of roller, and under the effect of intermediate rolling roller, produce certain deformation, simultaneously, intermediate calender rolls roller mechanism also can carry out online adjusting to the plate shape of strand.The present invention has thoroughly changed existing twin-roll cast-rolling mill cooled region length and the limited defective of intensity of cooling under the double action of feed mouth heat exchanger and casting roller crystallizer.Use the present invention can more effectively solve existing in prior technology: product material narrow range, sheet material hardness height, defective such as deep drawing quality is bad, pin hole is many, limit portion crackle is many, easy broken belt, output and board dimension precision be low when paper tinsel rolled.
Description of drawings
Accompanying drawing 1 is the tilting twin-roll cast-rolling mill schematic diagram of U.S. Hunter (Hunter) company design;
Accompanying drawing 2 is horizontal twin-roll cast-rolling mill schematic diagrames of French Si Kaer (Scal) company development;
Accompanying drawing 3 is hold concurrently three-roll casting-rolling mill schematic diagrames of crystallizer of feed mouth of the present invention;
Accompanying drawing 4 is vertical views of Fig. 3;
Accompanying drawing 5 is hold concurrently structural representations of three-roll casting-rolling mill of crystallizer of lip feed mouth in the present invention;
Accompanying drawing 6 is hold concurrently structural representations of three-roll casting-rolling mill of crystallizer of lip feed mouth under the present invention.
The specific embodiment
The present invention is described further below in conjunction with drawings and Examples.
Accompanying drawing 3 and accompanying drawing 5 are hold concurrently schematic diagrames of three-roll casting-rolling mill of crystallizer of feed mouth of the present invention, it mainly by: preceding case (1), down casting roll (8), down atomized water spray beam (9), pinch roll (10), lubricating rollers mechanism (11), go up atomized water spray beam (12), intermediate rolling roller (13), top backing up roll (14), depress oil cylinder (15), frame (21), roller mechanism (22), feed mouth device (23), roll line adjusting device formations such as (24).
In the invention of accompanying drawing 3 and accompanying drawing 5, provided a kind of hold concurrently three-roll casting-rolling mill of crystallizer of lip feed mouth of going up, it has three rolls that are arranged above and below, and top roll is a backing roll, and backing roll inside has heat exchange structure.The heat exchange structure of backing roll is by at the inner more than one slotted hole of processing of roll or have on the roller core of groove hot-mounted roll sleeve on the surface and realize.Intermediate calender rolls is a Rolling roller, and the intermediate calender rolls diameter is 1/4～3/4 of a following roller diameter, and optimum value is between 2/5～3/5mm, intermediate calender rolls is short than lower roll, its length can be made different sizes by the width specifications of slab, and intermediate calender rolls is than the short at least 20mm in the every limit of lower roll, preferably short 30～50mm.Intermediate calender rolls inside has heat exchange structure, and the heat exchange structure of working roll is by at the inner more than one slotted hole of processing of roll or have on the roller core of groove hot-mounted roll sleeve on the surface and realize that working roll is good with non-driving hollow-core construction.Intermediate calender rolls has a cover roller mechanism, roller mechanism is constituted or is made of the oil cylinder in projection that is installed in the framework window inboard and the projection by the oil cylinder that is installed on the bearing housing, oil cylinder can be respectively applies bending roller force to the above and below of middle roller bearing case, makes intermediate calender rolls produce negative curved or just curved effect.Be eccentric between intermediate calender rolls and the up-down rollers, its eccentricity value 0～+ 120mm between, optimum value+60～+ 100mm between.Lower roll is a casting roll, and casting roll is made of roller core and roller shell, and the roller core surface has groove, and the roller shell hot charging is on roller core.
In the invention of accompanying drawing 3 and accompanying drawing 5, the roll outlet side has the rack-mounted water smoke cooling device of a cover, the water smoke cooling device has upper and lower two spray beam, last spray beam is arranged between top roll and the intermediate calender rolls, with atomized water spray around the roll gap for well, following spray beam is arranged near the lower roll, and the position is as the criterion not influence roll change.
Feed mouth device (23) mainly comprises in the invention of accompanying drawing 3 and accompanying drawing 5: feed mouth body (2), feed mouth heat exchanger (3), current stabilization piece (4), time mouth plate (5), lower link (6), side plate (7), portable plate (16), feeding spring (17), guide blot (18), upper connecting rod (19), last mouth plate (20).
Feed mouth body is placed on the feed mouth device, and can move forward and backward along the guide groove of feed mouth device, after adjust the position between feed mouth and the casting roller, just may be locked on the feed mouth device, the elevating mechanism of regulating feed mouth device one end simultaneously can change the inclination angle of feed mouth in 0 °～+ 19 ° scope, thereby obtains desirable casting angle.
Be provided with a heat exchanger in the feed mouth body, heat exchanger is long flat tube shape, and by copper or tungsten/copper-alloy integrated processing, inside has more than one heat exchange hole, the one end is fixed on the inwall of feed mouth body, and the other end supports or is fixed on another inwall of feed mouth body.Heat exchanger has steam and cooling water switching mechanism, and switching mechanism can guarantee that under any circumstance heat exchanger does not form enclosed cavity.Mouth plate, last mouth plate and two side plates are by copper or copper alloy manufacturing under the feed mouth, be connected on the feed mouth body, and upper and lower mouth plate also links together with side plate respectively, is connected with the upper and lower pull bar that can regulate feed mouth (side plate) width between two side plates.
Go up the mouth plate in the invention of accompanying drawing 3 and be provided with movable mouth plate, movable mouth plate mainly is made of spring feed mechanism and portable plate, and the portable plate rear end has two guide grooves, the guide blot that respectively has two front and back to be provided with in the guide groove, guide blot is connected on the mouth plate, and portable plate is slided along guide blot.The front end of portable plate guide groove and the leading feeding spring that between bolt, is provided with, the nose circle cambered surface of portable plate is contacted with the intermediate calender rolls roll surface all the time, and, the inwall of the sidewall of portable plate and two side plates keeps relation movingly, the top relation movingly that also keeps of the bottom surface of portable plate and last mouth plate, portable plate is by copper or copper alloy manufacturing.
In the invention of accompanying drawing 6, having provided the hold concurrently three-roll casting-rolling mill of crystallizer of a kind of down lip feed mouth, is eccentric between intermediate calender rolls and the up-down rollers, its eccentricity value 0～-120mm between, optimum value-60～-100mm between.In the invention of accompanying drawing 6, the elevating mechanism of feed mouth device one end can change the inclination angle of feed mouth in 0 °～-19 ° scope.
In the preferred embodiment shown in accompanying drawing 3 and the accompanying drawing 5, be example with the hold concurrently three-roll casting-rolling mill of crystallizer of the feed mouth of φ 380 * 1520/ φ 850 * 1600mm specification;
Before the production: the casting section length is set in about 190mm, feed mouth inclination angle is adjusted at+6 °～+ 12 ° between, roll gap is controlled at about 14mm (less than the pre-thickness of slab value 1～2mm) of producing, the whole cambered surface of following mouth front edge of board contacts with the lower roll roll surface, the nose circle cambered surface of portable plate contacts with the intermediate calender rolls roll surface, the lower camber side of side plate front end contacts with the lower roll roll surface, front end medial surface and intermediate calender rolls contacts side surfaces, the last cambered surface and the intermediate calender rolls side of side plate front end are overlapping, lap is 25～35mm, in the adjusting, the nut of lower link both sides, make feed mouth (side plate) width consistent, preceding case bottom surface height is controlled at greater than between height of rolling line 20～40mm with the intermediate calender rolls roll surface width.Start casting and rolling machine and make each roll low speed rotation 10～15 minutes, check the situation of feed mouth and following casting roll, each contact site of central roll, and adjusted, simultaneously, toast chute and the intrinsic heat exchanger of feed mouth is fed steam.Confirm that each smelting technology finishes, metallic aluminium or aluminium alloy melt temperature in the static stove remain on 710 ℃～720 ℃, casting roller cooling water pressure between 0.3～0.5MPa, temperature less than 28 ℃, flow should be at 120m
3About/h, the casting and rolling machine roll surface speed transfers to about 2.0m/min.
During production: gradually the steam valve of heat exchanger in the feed mouth body is closed (heat exchanger forms enclosed cavity when forbidding steam, cooling water valve to be closed simultaneously), preceding case melt liquid level height is controlled between 80～140mm, temperature is controlled between 680 ℃～710 ℃, feed mouth liquid level should not have the lower roll surface of intermediate calender rolls, and the degree of depth that did not have equals preceding case melt liquid level height minus 1/2 gap values between rollers.After above-mentioned technological parameter is adjusted, casting and rolling machine enters the riser stage, when solid plate erects, be transferred to roll casting speed about 2.5m/min gradually, gradually the cooling water valve of heat exchanger in the feed mouth body is opened subsequently, and further be transferred to roll casting speed about 3.0m/min gradually, water smoke cooling device with the roll outlet side puts into operation simultaneously, through one period stabilization time, will produce qualified roll casting sheet, cut underproof wrench, aluminium sheet is sent to coiling machine, and is rolled into coiled material.
The present invention is at twin-roll cast-rolling mill, on the basis of CN 101239358A and two inventions of CN 101362150A, the hold concurrently three-roll casting-rolling mill of crystallizer of a kind of feed mouth of invention, it has significantly improved the rolling condition of casting and rolling machine, the casting region length and the intensity of cooling of casting roller have further been increased, and molten metal is carried out precooling by the heat exchanger that is provided with in the feed mouth, make the molten metal that enters before the roll crystallizer be solid-liquid two phases, water smoke cooling device in conjunction with the roll outlet side, thoroughly changed the restriction of casting roller diameter (casting section length) and limited this inherent shortcoming of intensity of cooling, improve the cooling effect of casting and rolling machine greatly, and then improved output, enlarged product scope.The present invention has three rolls that are arranged above and below, the intermediate rolling roller diameter is 1/4～3/4 of a following casting roll diameter, this is more favourable to increasing casting region length minimizing rolling deformation district increasing degree, and the casting section length under identical casting (making) the roller diameter situation is significantly improved.Three rolls that are arranged above and below, the intermediate calender rolls diameter reduces greatly, for mill roll bending control with movable mouth plate is set on semi open model feed mouth makes it become closed feed mouth to become possibility, thereby realized the plate shape On-line Control of cast-rolled block, improved the plate shape precision of cast-rolled block, simultaneously closed feed mouth has overcome the problem that aluminium liquid enters oxidation before the casting roller, has improved product quality.
The present invention is under the double action of feed mouth heat exchanger and casting roller crystallizer, existing twin-roll cast-rolling mill cooled region length and the limited defective of intensity of cooling have thoroughly been changed, and, three rolls that are arranged above and below, intermediate calender rolls roller function is provided, realize the plate shape On-line Control of cast-rolled block, improved the plate shape precision of cast-rolled block.Use the present invention can more effectively solve existing in prior technology: product material narrow range, sheet material hardness height, defective such as deep drawing quality is bad, pin hole is many, limit portion crackle is many, easy broken belt, output and board dimension precision be low when paper tinsel rolled.
Claims (12)
1. the feed mouth three-roll casting-rolling mill of crystallizer of holding concurrently, mainly comprise: roll, roll bearing box, frame, depress oil cylinder, preceding case, feed mouth, lubricating rollers mechanism and main drive, it is characterized in that: the hold concurrently three-roll casting-rolling mill of crystallizer of described feed mouth, three rolls are arranged, and the double crystallizer of doing of feed mouth.
2. the feed mouth of claim 1 three-roll casting-rolling mill of crystallizer of holding concurrently, it is characterized in that: the hold concurrently three-roll casting-rolling mill of crystallizer of described feed mouth, three rolls that are arranged above and below are arranged, top roll is a backing roll, backing roll inside has heat exchange structure, and the heat exchange structure of backing roll is by at the inner more than one slotted hole of processing of roll or have on the roller core of groove hot-mounted roll sleeve on the surface and realize.
3. the feed mouth of claim 1 three-roll casting-rolling mill of crystallizer of holding concurrently, it is characterized in that: the hold concurrently three-roll casting-rolling mill of crystallizer of described feed mouth, three rolls that are arranged above and below are arranged, intermediate calender rolls is a Rolling roller, the intermediate calender rolls diameter is 1/4～3/4 of a following roller diameter, intermediate calender rolls is short than lower roll, and its length can be made different sizes by the width specifications of slab.
4. claim 1 or 3 the feed mouth three-roll casting-rolling mill of crystallizer of holding concurrently, it is characterized in that: the hold concurrently three-roll casting-rolling mill of crystallizer of described feed mouth, three rolls that are arranged above and below are arranged, intermediate calender rolls is a Rolling roller, intermediate calender rolls inside has heat exchange structure, and the heat exchange structure of working roll is by at the inner more than one slotted hole of processing of roll or have on the roller core of groove hot-mounted roll sleeve on the surface and realize.
5. the hold concurrently three-roll casting-rolling mill of crystallizer of the feed mouth of arbitrary claim in the claim 1,3 or 4, it is characterized in that: the hold concurrently three-roll casting-rolling mill of crystallizer of described feed mouth, three rolls that are arranged above and below are arranged, intermediate calender rolls is a Rolling roller, intermediate calender rolls has a cover roller mechanism, and roller mechanism is made of the oil cylinder that is installed on the bearing housing.
6. the hold concurrently three-roll casting-rolling mill of crystallizer of the feed mouth of arbitrary claim in the claim 1,3 or 4, it is characterized in that: the hold concurrently three-roll casting-rolling mill of crystallizer of described feed mouth, three rolls that are arranged above and below are arranged, intermediate calender rolls is a Rolling roller, intermediate calender rolls has a cover roller mechanism, and roller mechanism is made of the oil cylinder in projection that is installed in the framework window inboard and the projection.
7. the hold concurrently three-roll casting-rolling mill of crystallizer of the feed mouth of arbitrary claim in the claim 1,3,4,5 or 6, it is characterized in that: the hold concurrently three-roll casting-rolling mill of crystallizer of described feed mouth, three rolls that are arranged above and below are arranged, intermediate calender rolls is a Rolling roller, be eccentric between intermediate calender rolls and the up-down rollers, its eccentricity value 0～± 120mm between.
8. the hold concurrently three-roll casting-rolling mill of crystallizer of the feed mouth of arbitrary claim in the claim 1,3,4,5,6 or 7, it is characterized in that: the hold concurrently three-roll casting-rolling mill of crystallizer of described feed mouth, three rolls that are arranged above and below are arranged, and intermediate calender rolls is a Rolling roller, and intermediate calender rolls is non-driving.
9. the feed mouth of claim 1 three-roll casting-rolling mill of crystallizer of holding concurrently is characterized in that: the hold concurrently three-roll casting-rolling mill of crystallizer of described feed mouth, three rolls that are arranged above and below are arranged, and the roll outlet side has the rack-mounted water smoke cooling device of a cover.
10. claim 1 or 9 the feed mouth three-roll casting-rolling mill of crystallizer of holding concurrently, it is characterized in that: the hold concurrently three-roll casting-rolling mill of crystallizer of described feed mouth, three rolls that are arranged above and below are arranged, the roll outlet side has the rack-mounted water smoke cooling device of a cover, the water smoke cooling device has upper and lower two spray beam, last spray beam is arranged between top roll and the intermediate calender rolls, and following spray beam is arranged near the lower roll.
The three-roll casting-rolling mill of crystallizer 11. the feed mouth of claim 1 is held concurrently, the hold concurrently feed mouth of three-roll casting-rolling mill of crystallizer of described feed mouth comprises: feed mouth body, down the mouth plate, go up mouth plate, two side plates and a upper connecting rod, it is characterized in that: also be connected with a lower link between two side plates, described feed mouth body is provided with heat exchanger, and described heat exchanger has steam and cooling water switching mechanism.
The three-roll casting-rolling mill of crystallizer 12. the feed mouth of claim 1 or 11 is held concurrently, the hold concurrently feed mouth of three-roll casting-rolling mill of crystallizer of described feed mouth comprises: feed mouth body, following mouth plate, last mouth plate, two side plates and a upper connecting rod, it is characterized in that: the described mouth plate of going up is provided with movable mouth plate, movable mouth plate is made of spring feed mechanism and portable plate, the front end cambered surface of portable plate closely contacts with the intermediate calender rolls roll surface under the effect of spring all the time during production, the inwall of the sidewall of portable plate and two side plates keeps relation movingly, and, the top relation movingly that also keeps of the following and last mouth plate of portable plate.
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| CN200910244091.2A CN102107211B (en) | 2009-12-28 | 2009-12-28 | Three-roller casting and rolling machine with feed nozzle doubling as crystallizer |
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| JP4735986B2 (en) * | 2004-06-30 | 2011-07-27 | 住友電気工業株式会社 | Method for producing magnesium alloy material |
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| CN102284518A (en) * | 2011-08-18 | 2011-12-21 | 中冶南方工程技术有限公司 | Water mist spraying device used in cold-rolling wet leveling production |
| CN104646421A (en) * | 2015-01-27 | 2015-05-27 | 燕山大学 | Double-metal composite plate electric pulse solid-liquid cast-rolling device and method |
| CN108405617A (en) * | 2018-05-11 | 2018-08-17 | 中冶赛迪工程技术股份有限公司 | A kind of high-strength alloy aluminium high speed level casting rolling producing equipment and technique |
| CN110039019A (en) * | 2019-04-18 | 2019-07-23 | 河南科技大学 | A kind of multi-channel parallel casting-rolling method, casting system and casting melt feeding device |
| CN110202104A (en) * | 2019-05-27 | 2019-09-06 | 北京首钢国际工程技术有限公司 | A kind of big pressure casting and rolling machine gas-mist cooling device of the box-like heavy slab of 2+8 roller group |
| CN110202104B (en) * | 2019-05-27 | 2024-02-09 | 北京首钢国际工程技术有限公司 | Aerosol cooling device of 2+8 roller combined thick plate blank large-pressure casting and rolling machine |
| CN113857446A (en) * | 2021-09-28 | 2021-12-31 | 张明 | Metal casting and continuous rolling method and equipment for crystallizer melt distribution and heat exchange separation |
| CN114871395A (en) * | 2022-04-20 | 2022-08-09 | 河北敬业高品钢科技有限公司 | Method and device for controlling equipment parameters in thin strip continuous casting |
| CN114871395B (en) * | 2022-04-20 | 2024-04-02 | 河北敬业高品钢科技有限公司 | Control method and device for equipment parameters in continuous thin strip casting |
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