CN107008870A - Chill roll cleaning device in dual roll casting machine - Google Patents
Chill roll cleaning device in dual roll casting machine Download PDFInfo
- Publication number
- CN107008870A CN107008870A CN201610920145.2A CN201610920145A CN107008870A CN 107008870 A CN107008870 A CN 107008870A CN 201610920145 A CN201610920145 A CN 201610920145A CN 107008870 A CN107008870 A CN 107008870A
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- Prior art keywords
- roll
- chill roll
- hairbrush
- roller
- outer peripheral
- Prior art date
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- 238000005266 casting Methods 0.000 title claims abstract description 60
- 238000004140 cleaning Methods 0.000 title claims abstract description 31
- 230000009977 dual effect Effects 0.000 title claims abstract description 20
- 230000002093 peripheral effect Effects 0.000 claims abstract description 63
- 238000003825 pressing Methods 0.000 claims abstract description 26
- 230000033001 locomotion Effects 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims description 29
- 239000002184 metal Substances 0.000 claims description 29
- 230000001680 brushing effect Effects 0.000 claims description 10
- 230000005489 elastic deformation Effects 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 15
- 239000010959 steel Substances 0.000 description 15
- 238000012360 testing method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 5
- 238000007711 solidification Methods 0.000 description 5
- 230000008023 solidification Effects 0.000 description 5
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000002513 implantation Methods 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 235000019628 coolness Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
-
- 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
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/0665—Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
-
- 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
-
- 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
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
-
- 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
- B22D11/08—Accessories for starting the casting procedure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Cleaning In General (AREA)
- Brushes (AREA)
Abstract
Disclose a kind of device for being used to clean the chill roll of the dual roll casting machine with the chill roll (1) rotated against for a pair.The chill roll cleaning device includes brush roll (9), and brush roll (9) has the roller component for being suitable to be positioned in parallel to chill roll.Roller component includes being connected to multiple hairbrush (7) that roller component is used to contact the outer peripheral edge of chill roll, and length of the hairbrush along roller component is separated.The chill roll cleaning device also includes rotating driving device (10), for rotating brush roll, at the outer peripheral edge of hairbrush contact chill roll, to make hairbrush be moved along the direction identical or opposite with the direction of motion of the outer peripheral edge of chill roll.The chill roll cleaning device also includes pressing device (11), for pushing brush roll against chill roll.
Description
The application be Application No. 200980153892.6, the applying date be November 19, entitled " double roller in 2009
The divisional application of the application for a patent for invention of chill roll cleaning device in casting machine ".
Technical field
The present invention relates to a kind of device for being used to clean the chill roll in double roller type conticaster hereinafter referred to as " dual roll casting machine ".
Prior art
In dual roll casting machine, between the horizontal casting rolls (hereinafter referred to as " chill roll ") rotated against for a pair be cooled
Molten metal is introduced, such as molten steel forms metal-back to be solidified on mobile roll surface, and is converged at the roll gap between casting roll
Collect metal-back, to generate the strip product of the solidification conveyed downwards from the roll gap between casting roll.Terms used herein " roll gap "
Refer to casting roll hithermost all regions each other.Molten metal can be poured into a less container or a series of smaller from casting ladle
Container in, and pass through a series of metal delivery nozzle above roll gap or delivery nozzles (also referred to as " core mouth ") stream from container
Go out, to form the molten metal for being located on roll gap casting surface immediately above and extending along nip length for being supported at chill roll
Cast pond.The casting pond is generally limited to keep between the side plate or side dam of sliding engagement with the end face of chill roll, to prevent from casting pond
Two ends occur aerial drainage.
Description is primarily upon the cast steel strip in dual roll casting machine below.Oxide, including the manganese in molten steel
(Mn) and silicon (Si) oxide, the outer peripheral face of chill roll is adhered to during casting manipulations.These oxides hinder molten
Melt heat transfer of the metal to chill roll, and the influence to heat transfer increases with oxide thickness on roller.Influence to heat transfer suppresses
Growth of the scull on the outer peripheral face of chill roll.
In order to solve the problem, it is known that set cylindrical shape brush roll to contact outer along the whole length of chill roll in its axial direction
Side face.Brush roll is configured to along being rotated with chill roll identical direction, thus the outer peripheral face of brush roll brushing chill roll, and thereby from outer
Side face removes the oxide skin(coating) of attachment.
Generally, this brush roll includes the array of bristles of dense arrangement.The existing manufacture method of brush roll is that half-and-half bending is brushed
Bristle is inserted elongate channel component by hair (thin stainless steel wire and analog) to form U-shaped component with compact arranged array
Passage in so that the two ends of bristle are stretched out from passage, and bar is inserted so that bristle is maintained at into logical by rubbing into passage
In road.Then, the length by the hairbrush holding member with the bristle being kept along cylindrical shape roll body component is tightly wound around
On cylindrical shape roll body component, and it is very close to each other between continuous wound portion.Hairbrush holding member passes through welding or other appropriate
Technology be held in place on roll body component.
Generally, the chill roll of dual roll casting machine is formed with crown (crown) in roller center.Crown must adapt to along roller length
Heat fluctuation, so that it is guaranteed that the uniform thickness of Cast Strip over the whole width.Therefore, the outer peripheral face of chill roll in axial direction has
Complicated profile.However, above-mentioned known brush roll is in that elastic deformation does not occur for rigid and each bristle because of the bristle of dense implantation.
Therefore bristle is very poor to the adaptive faculty of the diameter fluctuation of the outer peripheral face of chill roll, causes length of the brush roll along roller to show
Even brushing power, and in some cases, it can be possible to without sufficient brushing power with some parts of rightly clearer.
Accordingly, it is difficult to which equably brushing has after the outer peripheral face of the chill roll of complex outline, therefore the complete roller of brushing, in cooling
There is the thickness fluctuation of oxide layer on the outer peripheral face of roller.There is fluctuation in heat transfer and solidification therefore, on the outer peripheral face of chill roll, and
And the thickness of casted steel belt, there is also fluctuation, causing the output capacity of the high-quality i.e. band of uniform thickness reduces.
Above description should not be construed as the statement to common knowledge.
The content of the invention
The present invention provides a kind of chill roll cleaning device for double roller type conticaster, and it, which can be scraped, wipes along chill roll
Oxide on the outer peripheral face for the chill roll that whole effective width accumulates in dual roll casting machine, so that it is guaranteed that the outer peripheral face energy of chill roll
It is enough that heat is equably obtained from the molten metal for being delivered to dual roll casting machine, thus keep being coagulated by molten metal by what casting machine was produced
Solid into uniform thickness steel band high yield.
For the means solved the above problems
The present invention relates to a kind of chill roll cleaning device, it is used for the double roller for cleaning the chill roll rotated against with a pair
The chill roll of casting machine, this is separated each other horizontally to chill roll with required distance, with by supplying to the molten metal of roller from roller
Between roll gap generation strip, it is characterised in that the chill roll cleaning device include brush roll, rotating driving device and push dress
Put, the brush roll has the roller component for being suitable to be positioned in parallel to the chill roll, the roller component includes being connected to institute
State multiple hairbrush that roller component is used to contact the outer peripheral edge of the chill roll, the hairbrush length along the roller component point
Separate, the rotating driving device rotates the brush roll in the case of being come in contact in the outer peripheral edge of hairbrush and the chill roll,
And the pressing device is used to push the hairbrush against the chill roll.
In use, the rotating driving device of above-mentioned chill roll cleaning device is preferably along the motion side with the outer peripheral face of chill roll
In the opposite direction, brush roll is driven, hairbrush is contacted the outer peripheral face of chill roll, and pressing device presses dabbing brush against chill roll.
Arranged by the above-mentioned hairbrush that separates, even if there is fluctuation in the profile of the outer peripheral face of chill roll, for example as chill roll along its
There is axial direction the space between the result of crown, the bristle of hairbrush each bristle is occurred elastic deformation, so that bristle
The profile fluctuation of the outer peripheral face of chill roll is can adapt to, so that equably scrubby surface.Therefore, the oxygen on the outer peripheral face of chill roll
Change thickness degree and fluctuation is not present, chill roll equably obtains heat at the outer peripheral face of chill roll from molten metal, so that Cast Strip
There is uniform thickness on the width of band, and realize high output capacity.
The rotating driving device be able to can exist along the direction opposite with the direction of motion of the outer peripheral edge of the chill roll
The outer peripheral edge of hairbrush and the chill roll rotates the brush roll in the case of coming in contact.
Space between hairbrush can be formed by the way that the hairbrush of the brush roll is positioned into spiral curve, and the space is in phase
The form of space lines between adjacent hairbrush lines.
According to present invention also offers a kind of dual roll casting machine for being used to generate strip, it includes a pair of coolings rotated against
Roller and the chill roll cleaning device for cleaning at least one chill roll, this is separated each other horizontally to chill roll with required distance
Open, with by supply to the molten metal of roller between roller roll gap generate strip, the chill roll cleaning device include brush roll,
Rotating driving device and pressing device, the brush roll have the roller component for being positioned in parallel to the chill roll, the roller
Component includes being connected to the roller component and for the multiple hairbrush for the outer peripheral edge for contacting the chill roll, and the hairbrush is along institute
The length for stating roller component is separated, the rotating driving device be used for rotate the brush roll so that the hairbrush with it is described cold
But the outer peripheral edge of roller contacts and moved along the direction identical or opposite with the direction of motion of the outer peripheral edge of the chill roll, and described
Pressing device is used to push the hairbrush against the chill roll.
According to the present invention, a kind of method of the continuously casting sheet metal strip in dual roll casting machine is additionally provided, it includes following
Step：
(a) chill roll for the level that can be rotated against for a pair is assembled, strip can be cast through its to be formed between the two
Roll gap, and the end of the adjacent chill roll assembles a pair of limitation side dams, and this can limit limitation side dam and be supported on
On the chill roll and form the casting pond of molten metal on the casting surface above the roll gap；
(b) metal delivery system is assembled, the metal delivery system is arranged on above the roll gap, and can be discharged molten
Melt metal to form the casting pond being supported on the chill roll；
(c) side dam actuator is assembled, each side dam actuator can make side dam be in selected position to side dam axial force is applied
Put；
(d) above-mentioned chill roll cleaning device is assembled relative to each chill roll, makes the outer peripheral face of hairbrush and the chill roll
Come in contact；And
(e) conveying molten metals and casting pond is formed, while rotating the chill roll and from the roller between the chill roll
The downward cast strip of gap, and fall by the chill roll cleaning device oxide layer of attachment from each chill roll brushing.
The metal can be steel.
The effect of the present invention
The chill roll cleaning device of the present invention makes it possible to realize to be removed along the whole effective width of the outer peripheral face of chill roll
The oxide of attachment, to allow equably to obtain heat from molten metal at the outer peripheral face of chill roll, makes shape in dual roll casting machine
Into steel band thickness fluctuation minimize so that improve band output capacity.
Brief description of the drawings
Only described by way of example in the present invention, accompanying drawing with reference now to accompanying drawing：
Fig. 1 is the schematic side elevation of a part for dual roll casting machine according to an embodiment of the invention；
Fig. 2 is the perspective view of brush roll according to an embodiment of the invention, suitable for casting machine shown in Fig. 1；
Fig. 3 is the schematic diagram of a test equipment, the test equipment be used to measure make under specified requirements brush roll shown in Fig. 2 and
Pressure distribution when the dense embedded type brush roll of prior art comes in contact with the pressing plate positioned with an angle；
Fig. 4 is the curve map for the experimental result for showing test equipment shown in Fig. 3；
Fig. 5 is the schematic diagram of a test equipment, and the test equipment, which is used to measuring, makes the dense of brush roll shown in Fig. 2 and prior art
Pressure distribution when close embedded type brush roll comes in contact with pressing plate, wherein the pressing plate is pasted with forms linear recessed in surface
The resin film in portion；
Fig. 6 is the curve map for the experimental result for showing test equipment shown in Fig. 5；And
Fig. 7 is block diagram, shows the comparison knot of the pressure oscillation coefficient of the test carried out based on experimental facilities shown in Fig. 3
The comparative result of the pressure oscillation coefficient of the test really and based on experimental facilities shown in Fig. 5 carried out.
Embodiment
With reference to Fig. 1, the part for the dual roll casting machine of continuously casting thin steel strip includes a pair of coolings that can be rotated against
Roller 1.There is chill roll 1 located lateral to form roll gap G outer peripheral face therebetween.These outer peripheral faces formation casting surface.Cooling
Roller 1 is arranged in roller case (not shown), with convenient to operate and movement.Roller case helps to prepare to use as a unit in casting machine
The casting position operated is moved quickly into from set location in the chill roll of casting, and is contributed in chill roll to be replaced
Chill roll is easily removed from casting position.Simultaneously desired particular configuration is not present in roller case, as long as it can realize promotion chill roll
Movement and positioning function.
During casting manipulations, molten steel is supplied to casting machine via metal delivery system.Molten steel stream is to being positioned on roll gap G
At least one metal delivery nozzle 3 or core mouth between square chill roll 1.The molten steel for the such conveying discharged from delivery nozzle 3 is in roller
The casting pond 5 of molten steel is formed above gap G, casting pond 5 is supported on the casting surface of casting roll 1.The casting pond 5 is at the end of chill roll 1
Portion is limited in casting area by a pair of side seal boards or restriction plate side dam 2 (in Fig. 1 partly shown in broken lines).Cast the upper of pond 5
Surface (commonly referred to as " meniscus " level) can rise to the top of the bottom of delivery nozzle 3 so that the bottom of delivery nozzle 3 is submerged
In casting pond 5.
By water cooling inside chill roll 1 so that when chill roll 12 is rotated against with identical speed, chill roll 12 often rotates
One circle, is contacted and by casting pond 5, solidification forms shell on outer peripheral face as outer peripheral face is moved to.Shell is between chill roll 12
It is caught at roll gap 18, to generate the thin strip slab product 21 of the solidification conveyed downwards from roll gap 18.At roll gap G chill roll 1 it
Between gap be formed as keeping separation so that semi-solid steel is present in through the shell of roll gap between scull at roll gap
In space, and then freezed solidly at least in part in the Cast Strip below roll gap between scull.
Fig. 1 shows dual roll casting machine, and it generates the thin Cast Strip S passed downwardly through from roll gap G.The thickness of Cast Strip can be about 0.3
Between~2.0mm.
Dual roll casting machine shown in Fig. 1 also includes chill roll cleaning device 4, and the outer peripheral face of each chill roll 1 is accumulated in for removing
On oxide.
With reference to Fig. 1 and 2, each chill roll cleaning device 4 includes rotatable brush roll 9 and the hairbrush 7 in bristle form,
Wherein in some parts of bristle implantation brush roll, for contacting the outer peripheral face of one in chill roll 1.Hairbrush 7 does not cover brush roll 9
Whole outer peripheral face, as above-mentioned known brush roll, and brush roll 9 include make the separated part of hairbrush 7 along the length of brush roll 9
8 (see Fig. 2).In fig. 2, hairbrush 7 is configured to surround the lines that brush roll is entwined with spiral path along the length of brush roll, and
Space 8 is also in the stripe shape for separating the hairbrush 7 of adjacent lines.The hairbrush 7 of brush roll 9 can be set to single spiral curve,
It may also set up and linearly separate and relative to the inclined multiple lines of longitudinal axis of the cylinder 6 of brush roll 9.Hairbrush 7 passes through weldering
Connect or be otherwise affixed to brush roll 9.Therefore, elastic deformation can occur for each bristle of hairbrush 7, and this causes the hair of brush roll 9
Brush 7 can adapt in the fluctuation of the outer peripheral face of chill roll 1, and fully scrubby surface.
Chill roll cleaning device 4 also includes the rotating driving device 10 in motor, and it is connected to brush roll 9, and energy
Along the fortune opposite with the direction of motion of the outer peripheral face of chill roll 1 at enough contact points between hairbrush 7 and the outer peripheral face of chill roll 1
Dynamic direction driving brush roll 9.
Chill roll cleaning device 4 also includes pressing device 11, and the applying power of pressing device 11 is to push brush roll 9 against chill roll
1.Pressing device 11 includes the journal box 12 for being rotatably supported brush roll 9.Pressing device 11 also includes pin 13 and hydraulic cylinder 14,
The pin 13 extends parallel to the axis of brush roll 9, and is rotatably supported journal box 12, and the hydraulic cylinder 14 can apply
Power towards the journal box 12 on the shake pin 13 of chill roll 1 with by pushing brush roll 9 against chill roll 1.
The present invention is described now referring additionally to the example below.
In above-mentioned dual roll casting machine in use, rotating driving device 10 makes brush roll 9 in hairbrush 7 and the outer peripheral face of chill roll 1
Between contact point at rotate along the direction opposite with the direction of motion of the outer peripheral face of chill roll 1, and the hairbrush 7 of brush roll 9 passes through
Pressing device 11 is pressed against chill roll 1.As described above, since it is desired that being formed with crown shape to adapt to the thermal force during casting
Roller 1, and because thermal stress under the condition of high temperature, chill roll 1 has complicated profile.With with dense rigid bristles
The prior art brush roll of array is different, and each bristle for forming the hairbrush 7 of Fig. 1 and 2 illustrated embodiments can be because of the edge between hairbrush 7
Axially spaced apart part without bristles 8 and occur elastic deformation, therefore, it is possible to well in compliance with the outer peripheral face of chill roll 1, and
And it is capable of the outer peripheral face of equably brushing (polish) chill roll 1.Therefore, the attachment oxide layer on the outer peripheral face of chill roll 1 is not
There is thickness fluctuation, and outer peripheral face can obtain big calorimetric from molten metal, and heat be chill roll 1 outer peripheral face from
Equably it is acquired in molten metal.Therefore, the thickness fluctuation for the steel band for solidifying and being formed on the outer peripheral face of chill roll 1 is most
It is small.
Fig. 3 is a schematic diagram, shows an experimental facilities, its be used to measuring Fig. 2 shown types brush roll 9 (relative to
The spiral angle of axis be 30 degree, wire harness be 16) and known dense embedded type brush roll 9 with inclination (tan θ=1/500)
Pressure distribution when pressing plate 15 comes in contact, wherein, the pressing plate 15 is pasted with colored pressure sensitive film 16, and measuring condition is such as
Under：
Brush roll external diameter：Φ250mm
Roller component external diameter：160mm
The effective width of brush roll：500mm
Bristle material on brush roll：Polypropylene
Brush bristles diameter：Φ0.5mm
Lower compressive load：150N~300N
The speed of rotation：1500rpm
Pressing time：4 seconds~5 seconds
Pressure sensitive film 16：Width 300mm, height 40mm.
Pressure sensitive film 16 makes it possible to the pressure distribution on measuring pressure plate 15.
The colored pressure sensitive film 16 of pressure to bearing brush roll 9 and 9 ' in an experiment carries out graphical analysis.Fig. 4 is shown
Experimental result.Fig. 4 is the curve map of the pressure that is obtained from the analysis to the distance in the left side away from brush roll 9 and 9 '.
It can be seen that from Fig. 4 curve map, the stress level of the spiral brush roll 9 from the present invention is dense more than known
The stress level of embedded type brush roll 9 '.It is believed that the better performance of brush roll 9 be due to the present invention spiral brush roll 9 compared with
Known dense embedded type brush roll 9 ', the brush amount come in contact simultaneously with the pressure surface of pressing plate 15 in any given time
It is less.Therefore, even if assuming identical compressive load, the load of individual bristle is acted on the present invention's in any given time
It is bigger than in the case of known dense embedded type brush roll 9 ' in the case of spiral brush roll 9.In addition, with further reference to Fig. 4, it is dense
The influence of the inclination contact of implantation bristle-type brush roll 9 ' is clearly visible, and this influence is in spiral brush roll 9 of the invention
In the case of be unconspicuous.
Based on above-mentioned experiment, it is contemplated that be the group of initial crown and high-temperature operation in actual double roller type conticaster
The curved shape by complexity is generated in the outer peripheral face of chill roll 1 is closed, but the spiral brush roll 9 of the present invention responds chill roll 1
This surface profile, and also be expected to provide good clean-up performance.
Fig. 5 is a schematic diagram, shows another experimental facilities, its brush roll 9 for being used to measure Fig. 2 shown types and known
Dense embedded type brush roll 9 ' is in these brush rolls 9 and is pasted with the pressure when pressing plate 15 of resin film 18 (0.2mm thick) comes in contact
Distribution, the axis in the resin film 18 relative to brush roll 9 and 9 ' formed at a right angle linear recess 17 (3mm or 5mm are wide,
0.2mm is deep), and film 18 is pasted with pressure sensitive film 16, and measuring condition is identical with above-mentioned condition, is summarized as follows：
Brush roll external diameter：Φ250mm
Roller component external diameter：160mm
The effective width of brush roll：500mm
Bristle material on brush roll：Polypropylene
Brush bristles diameter：Φ0.5mm
Lower compressive load：150N~300N
The speed of rotation：1500rpm
Pressing time：4 seconds~5 seconds
Pressure sensitive film 16：Width 300mm, height 40mm.
Fig. 6 is the pressure obtained from the analysis of the result of the experiment to being carried out using equipment shown in Fig. 5 to away from the He of brush roll 9
The curve map of the distance in 9 ' left side.
It can be seen that from Fig. 6 curve map, the stress level of spiral shape brush roll 9 of the invention is dense higher than known to plant
Enter the stress level of type brush roll 9 '.As described above, it is believed that this higher pressure is due to the spiral brush sifter of the present invention
Roller 9 comes in contact with the pressure surface of pressing plate 15 simultaneously compared with known dense embedded type brush roll 9 ' in any given time
Brush amount is less.Therefore, even if assuming identical compressive load, the load for acting on individual bristle in any given time exists
The present invention spiral brush roll 9 in the case of compare in the case of known dense embedded type brush roll 9 ' greatly, its show as pressure with
Macroscopic scale increases.
Therefore, when based on these experimental results that pressure oscillation coefficient (=standard deviation/average pressure × 100 [%]) is true
When being set to the index of fluctuation, when brush roll 9 and 9 ' comes in contact in obliquity (tan θ=1/500) and pressing plate 15 (see figure
3), and when brush roll 9 and 9 ' with linear recess 17, (3mm or 5mm are wide；0.2mm is deep) resin film (0.2mm is thick)
(see Fig. 5) when pressing plate 15 comes in contact, as can be seen from Figure 7, the pressure oscillation coefficient of spiral shape brush roll 9 of the invention is less than existing
The pressure oscillation coefficient of the dense embedded type brush roll 9 ' of technology, and the space wave of pressure is less.
Therefore, can be on the outer peripheral face of chill roll 1 at it by using the chill roll cleaning device 4 shown in Fig. 1 and 2
The oxide of accumulation is removed in whole effective width, so as in the outer peripheral face of chill roll 1 from molten steel (or other melting gold
Category) in equably obtain heat, and eliminate solidification formed steel band yardstick it is uneven, so as to improve output capacity.
Rule for the cleaning device of above-mentioned double roller type conticaster is not limited to the example, is not departing from this
It is of course possible to making a variety of different modifications on the premise of the spirit of invention.
Claims (3)
1. a kind of chill roll cleaning device, the chill roll for cleaning the dual roll casting machine with the chill roll rotated against for a pair,
This is separated each other horizontally to chill roll with required distance, with thin to the molten metal of roller from the roll gap generation between roller by supplying
Band, each roller is formed with crown in roller center so that length change of the diameter of roller along roller, it is characterised in that
The chill roll cleaning device includes brush roll, rotating driving device and pressing device, and the brush roll, which has, to be suitable to be positioned to
Parallel to the roller component of the chill roll, the roller component includes being connected to the roller component for contacting the cooling
Multiple hairbrush of the outer peripheral edge of roller, the hairbrush is arranged to the individual hairbrush lines along the length extension of the roller component, and
Length of the individual hairbrush lines along the roller component is separated so that along the length of the roller in adjacent individual
There is gap between hairbrush lines, wherein the individual bristle of the hairbrush is spaced apart so as to which individual bristle can be independently of other
Body bristle occurs elastic deformation so that individual bristle can adapt to the profile fluctuation of the outer peripheral face of chill roll and equably brushing
The outer peripheral face, the rotating driving device rotates described in the case of being come in contact in the outer peripheral edge of hairbrush and the chill roll
Brush roll, and the pressing device is used to push the hairbrush against the chill roll and make the bristle elastic deformation,
Wherein, the rotating driving device can be along the direction opposite with the direction of motion of the outer peripheral edge of the chill roll in hairbrush
The brush roll is rotated in the case of being come in contact with the outer peripheral edge of the chill roll,
Hairbrush lines are that the gap between spiral curve, and hairbrush lines is gap between screw form.
2. it is used to generating the dual roll casting machine of strip a kind of, including the chill roll that rotates against for a pair and cold for cleaning at least one
But the chill roll cleaning device of roller, this is separated each other horizontally to chill roll with required distance, with by supplying to the melting of roller
Metal generates strip from the roll gap between roller, and each roller is formed with crown in roller center so that length change of the diameter of roller along roller,
The chill roll cleaning device includes brush roll, rotating driving device and pressing device, and the brush roll, which has, is positioned in parallel to institute
The roller component of chill roll is stated, the roller component includes being connected to the roller component and contacts the outer peripheral edge of the chill roll
Multiple hairbrush, the hairbrush is arranged to the individual hairbrush lines along the length extension of the roller component, and described chaeta
Length of the brush lines along the roller component is separated so that along the roller length adjacent individual hairbrush lines it
Between there is gap, wherein the individual bristle of the hairbrush is spaced apart so as to which individual bristle can occur independently of other individual bristles
Elastic deformation so that individual bristle can adapt to the profile fluctuation of the outer peripheral face of chill roll and equably outer peripheral face described in brushing,
The rotating driving device is used to rotate the brush roll, so that the hairbrush is contacted with the outer peripheral edge of the chill roll, and it is described
Pressing device is used to push the hairbrush against the chill roll and make the bristle elastic deformation,
Wherein, the rotating driving device can be along the direction opposite with the direction of motion of the outer peripheral edge of the chill roll in hairbrush
The brush roll is rotated in the case of being come in contact with the outer peripheral edge of the chill roll,
Hairbrush lines are that the gap between spiral curve, and hairbrush lines is gap between screw form.
3. a kind of method of the continuously casting sheet metal strip in dual roll casting machine, comprises the following steps：
(a) chill roll for the level that can be rotated against for a pair is assembled, to form the roller that strip can be cast through it between the two
Gap, and the end of the adjacent chill roll assembles a pair of limitation side dams, this limitation side dam can be limited be supported on it is described
On chill roll and form the casting pond of molten metal on the casting surface above the roll gap；
(b) metal delivery system is assembled, the metal delivery system is arranged on above the roll gap, and melting gold can be discharged
Belong to forming the casting pond being supported on the chill roll；
(c) side dam actuator is assembled, each side dam actuator can apply axial force to the side dam, side dam is in selected position
Put；
(d) chill roll cleaning device as claimed in claim 1 is assembled relative to each chill roll, makes hairbrush part and the chill roll
Outer peripheral face come in contact；And
(e) supplying melting metal and formed casting pond, while rotate the chill roll and from the roll gap between the chill roll to
Lower cast strip, and fall by the chill roll cleaning device oxide layer of attachment from each chill roll brushing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008296795A JP5260240B2 (en) | 2008-11-20 | 2008-11-20 | Cooling roll scouring device for twin roll continuous casting equipment |
| JP2008-296795 | 2008-11-20 | ||
| CN2009801538926A CN102271837A (en) | 2008-11-20 | 2009-11-19 | Device for cleaning chilled roll in a twin roll caster |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801538926A Division CN102271837A (en) | 2008-11-20 | 2009-11-19 | Device for cleaning chilled roll in a twin roll caster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107008870A true CN107008870A (en) | 2017-08-04 |
Family
ID=42197750
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610920145.2A Pending CN107008870A (en) | 2008-11-20 | 2009-11-19 | Chill roll cleaning device in dual roll casting machine |
| CN2009801538926A Pending CN102271837A (en) | 2008-11-20 | 2009-11-19 | Device for cleaning chilled roll in a twin roll caster |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801538926A Pending CN102271837A (en) | 2008-11-20 | 2009-11-19 | Device for cleaning chilled roll in a twin roll caster |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5260240B2 (en) |
| KR (1) | KR20110094190A (en) |
| CN (2) | CN107008870A (en) |
| TR (1) | TR201104940T2 (en) |
| WO (1) | WO2010057255A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111085482A (en) * | 2019-12-31 | 2020-05-01 | 徐州汉裕铝业有限公司 | Roller surface cleaning device for aluminum casting and rolling |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2647587B1 (en) * | 2010-12-02 | 2016-09-14 | Toyo Aerosol Industry Co., Ltd. | Multiple liquid dispensing aerosol device |
| CN102950276B (en) * | 2011-08-30 | 2014-10-01 | 宝山钢铁股份有限公司 | Method and device for cleaning surface of dual-roller thin-strip casting roll |
| CN102836983B (en) * | 2012-07-21 | 2015-05-27 | 青岛新力通工业有限责任公司 | Powerful brush rod for cleaning inner hole of cylinder |
| CN103506616A (en) * | 2013-10-23 | 2014-01-15 | 唐山市润捷机械设备制造有限公司 | Online cleaning device for slab continuous casting arc section roller way |
| JP2017030033A (en) | 2015-08-05 | 2017-02-09 | Ｊｆｅスチール株式会社 | Thin metal strip production apparatus |
| CN106552911B (en) * | 2015-09-30 | 2018-08-10 | 宝山钢铁股份有限公司 | Thin strap continuous casting mixes the cleaning plant and method for cleaning of mao roll surface |
| CN107984852B (en) * | 2017-10-31 | 2019-12-17 | 重庆瑞霆塑胶有限公司 | CPP film and production process thereof |
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- 2009-11-19 TR TR2011/04940T patent/TR201104940T2/en unknown
- 2009-11-19 WO PCT/AU2009/001506 patent/WO2010057255A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2010057255A1 (en) | 2010-05-27 |
| TR201104940T2 (en) | 2011-07-21 |
| KR20110094190A (en) | 2011-08-22 |
| CN102271837A (en) | 2011-12-07 |
| JP5260240B2 (en) | 2013-08-14 |
| JP2010120053A (en) | 2010-06-03 |
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Application publication date: 20170804 |