CN109570462A - A kind of production system and method for nanocrystalline strip - Google Patents
A kind of production system and method for nanocrystalline strip Download PDFInfo
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- CN109570462A CN109570462A CN201811518848.8A CN201811518848A CN109570462A CN 109570462 A CN109570462 A CN 109570462A CN 201811518848 A CN201811518848 A CN 201811518848A CN 109570462 A CN109570462 A CN 109570462A
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- Prior art keywords
- chill roll
- roll
- roll surface
- nozzle
- nanocrystalline strip
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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
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0611—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a single casting wheel, e.g. for casting amorphous metal strips or wires
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/02—Winding-up or coiling
-
- 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
- B22D11/064—Accessories therefor for supplying molten metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The present invention relates to a kind of production system of nanocrystalline strip and methods, including smelt unit, nozzle packet, forming unit, stripping unit and winding unit；The forming unit includes chill roll, the first roll surface grinding attachment, the second roll surface grinding attachment and roll surface truning fixture；The chill roll is set to the lower section of the nozzle packet.The nozzle packet includes encasing, outer backpack cover, interior packet, temperature-adjusting device, funnel device and the dismountable nozzle cups for being set to the encasing bottom, and the nozzle packet further includes stopper rod device；The bottom Nei Bao is provided with discharge port, and the discharge port is connected with the nozzle cups；The stopper rod of the stopper rod device passes through the correspondence aperture that the outsourcing covers, for blocking the discharge port of the bottom the Nei Bao setting；The axis of the discharge port, the axis of nozzle cups are overlapped with the axis of the stopper rod.The production system can steadily produce the nanocrystalline strip of thinner thickness.
Description
Technical field
The invention belongs to nanocrystalline strips to manufacture field, be related to a kind of production system of nanocrystalline strip, especially relate to
And a kind of production system and method for nanocrystalline strip.
Background technique
With the development of present science and technology, nanocrystalline strip use scope is developed increasingly wider, is mainly used for high-precision
High-end products such as inductance, the magnetic core of high frequency electric source, high frequency transformer, magnetic amplifier etc., related iron core device are mainly used for counting
Intelligent electric meter, photovoltaic power generation grid-connected inverter and new-energy automobile charging, drive system in word electronic product, smart grid
Deng to meet requirement of the power electronic technique to development trends such as high frequency, high current, miniaturization, energy conservations.High-saturation magnetic induction is strong
Degree, the market demand of low-loss nanocrystalline strip are increasing.
In existing equipment, nanocrystalline strip is produced by the way of just spraying, in process of production by by molten condition
Steel alloy water jet on the chill roll of rotation, solid nanocrystalline band is become from liquid with per second million degree of cooling velocity
Material, molding nanocrystalline strip is just removed away from chill roll with the chill roll contact quarter turn of rotation, in production process
In in order to control thickness of strip reduce fluidity molten steel by reducing liquid steel temperature to produce strip.But reducing molten steel
While temperature, the mobility of molten steel is deteriorated, in production process molten steel block up nozzle, it is low with material density, can be big with narrow probability
It is big to increase, it is affected in process of production to yield and quality.
107082298 A of CN discloses a kind of modified nanocrystalline strip Preparation equipment, the equipment include mobile device with
And the cooling roller device of installation on the mobile device, the device wind position by the way that fixed positioning winding is changed to variable dynamic formula,
Though can achieve chill roll go out band position appear in where, all the center of winding wheel can be adjusted to corresponding cooling
Roller goes out band position, solves the problems, such as that nanocrystalline strip falls off, but this method can not be adjusted the thickness of nanocrystalline strip, and
Adjustment process is relatively complicated, is unfavorable for industrialized large-scale production.
104399918 A of CN discloses a kind of method and system of continuous production nanocrystalline strip, and this method includes on line
Spray packet heating link under spray packet heating link and line, and two links are all made of and can be heated with the isolated heating mantle of spray packet,
Heating mantle on line in spray packet heating link is located on strip producing line, is heating mantle on line, under line in spray packet heating link
Heating mantle is located under strip producing line, is heating mantle under line；The spray packet heating device of the system includes spray packet heating device on line
, without interrupting production, have when production is abnormal with spray packet heating device under line and economize on resources, improve production efficiency
Feature, but this method and system can not produce the nanocrystalline strip of thinner thickness.
105710159 A of CN discloses the rewinding device automatically and rewind method automatically of a kind of amorphous band, the device packet
Include steel ladle, water cooled rolls, removing gas, two the first negative pressure devices, two batch vehicle and batch vehicle described in being separately positioned on two
On two reels, two reels are for alternately grabbing and batching the amorphous band.But this method needs two reels mutual
Cooperation reduces the stability of device operation.
102294452 A of CN discloses the device and method of amorphous nano band automatic rolling, which includes setting
Smelting furnace, current stabilization packet, nozzle packet and control and detection system get rid of belt roller and coiling machine.The device is realized by setting leader tape and is received
The automatic rolling of rice crystal zone material, device needed for this method is more, needs the cooperation of leader tape that can realize the volume of nanocrystalline strip
It takes, reduces the stability of device operation.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of production system of nanocrystalline strip and
Method, nozzle packet used in the production system of the nanocrystalline strip can be with high temperature spray alloy molten steel, the mobility of alloy molten steel
It improves, in conjunction with double filter devices, nozzle cups clogging caused by improvement low-temperature alloy MOLTEN STEEL FLOW is poor, impurity is high, in life
The contact surface of nanocrystalline strip and chill roll is extended during production, becomes 3/4 circumference from quarter turn, what is be prepared receives
Rice crystal zone material product thickness is low, and the success rate that nanocrystalline strip batches improves.
To achieve this purpose, the present invention adopts the following technical scheme:
In a first aspect, the present invention provides a kind of nozzle packet for nanocrystalline strip production system, the nozzle packet
It includes encasing, outer backpack cover, interior packet, temperature-adjusting device, funnel device and is set to the dismountable of the encasing bottom
Nozzle cups, the nozzle packet further include stopper rod device.
The bottom Nei Bao is provided with discharge port, and the discharge port is connected with the nozzle cups.
The stopper rod of the stopper rod device passes through the correspondence aperture that the outsourcing covers, for blocking the bottom the Nei Bao setting
Discharge port.
The interior packet of nozzle packet provided by the present invention can be used in carrying and heat alloy molten steel, and temperature-adjusting device can be with
Heating and thermal insulation is carried out to alloy molten steel according to the temperature of setting, funnel device is used to alloy molten steel importing the interior packet, stopper rod
The stopper rod of device can be cooperated with discharge port to ensure tightness, and stopper rod device uses simply, easy to control, convenient for behaviour
Make.
The axis of the discharge port, the axis of nozzle cups are overlapped with the axis of the stopper rod.
Preferably, the first filter screen is provided in the funnel device.
Preferably, the second filter screen is provided in the discharge port.
The setting of filter screen can remove the impurity for including in alloy molten steel, prevent impurity plug nozzle cup, and then avoid
The problems such as nanocrystalline strip thickness and inhomogenous width caused by being blocked due to nozzle cups.Those skilled in the art can
To select first filter screen and the second filter screen in suitable aperture according to the content of steel alloy impurities in water.
Preferably, first filter screen is prepared with the second filter screen using refractory material.
Preferably, the refractory material includes zirconium oxide, aluminium oxide, lanthana, cerium oxide, silicon carbide, titanium carbide or nitrogen
Change any one in boron.
Preferably, the nozzle packet is provided with movable fixture.
Movable fixture in the present invention can be the mobile any device of carrying nozzle packet, as long as can play makes nozzle
The bogey for wrapping purpose easy to remove is all fallen in the protection scope of movable fixture of the present invention.
Second aspect, the present invention also provides the nanocrystalline strips of the nozzle packet of application as described in relation to the first aspect to produce system
System, the production system include smelting unit, nozzle packet, forming unit, stripping unit and winding unit.
The forming unit includes chill roll, the first roll surface grinding attachment, the second roll surface grinding attachment and roll surface turning
Device.
The chill roll is located at the lower section of the nozzle packet.
Preferably, the chill roll is rotated counterclockwise around its own rotary shaft.
Preferably, the first roll surface grinding attachment is rotated counterclockwise around its own rotary shaft.
Preferably, the first roll surface grinding attachment is set to the right of the chill roll, transports for the production system
The roll surface of the chill roll is ground when row.
The first roll surface grinding attachment is used in production system operation, the fatigue layer that the roll surface of chill roll generates
It is handled, the chill roll for grinding away fatigue layer can be contacted preferably with alloy molten steel, to improve cooling effect.
Preferably, the second roll surface grinding attachment is rotated counterclockwise around its own rotary shaft.
Preferably, the second roll surface grinding is filled with the left for being set to the chill roll, transports for the production system
Grinding pretreatment is carried out to the roll surface of the chill roll before row.
Preferably, the roll surface truning fixture is set to the left of the chill roll, before production system operation
Turning pretreatment is carried out to the roll surface of the chill roll.
Before second roll surface grinding attachment and roll surface truning fixture produce nanocrystalline strip for the production system, to cold
But the roll surface of roller is pre-processed.Wherein roll surface truning fixture is for the processing to roll surface exception or defect, the grinding of the second roll surface
Device is for carrying out grinding processing to the roll surface after turning, so that the roll surface of chill roll finish with higher, improves cooling
The contact area of roller and alloy molten steel improves cooling effect.
Preferably, the stripping unit is set to the right of the chill roll, for removing the cooling on the chill roll
Band.
Stripping unit includes gas stripping device, will be cold by the compressed air that the removing gas nozzle of gas stripping device is blown out
But the nanocrystalline strip formed is removed from the roll surface of chill roll.
Preferably, the winding unit is located at the right of the chill roll, is used for winding strips.
Preferably, the reel of the winding unit rotates clockwise.The reel rotated clockwise will pass through above reel
Nanocrystalline strip batch, to form nanocrystalline strip product.
Preferably as the technical solution for the production system that second aspect of the present invention provides, the production system can be with
Do following arrangement.
Preferably, the chill roll is rotated clockwise around its own rotary shaft.
Preferably, the first roll surface grinding attachment is rotated clockwise around its own rotary shaft.
Preferably, the first roll surface grinding attachment is set to the left of the chill roll, transports for the production system
The roll surface of the chill roll is ground when row.
Preferably, the second roll surface grinding attachment is rotated clockwise around its own rotary shaft.
Preferably, the second roll surface grinding is filled with the right for being set to the chill roll, transports for the production system
Grinding pretreatment is carried out to the roll surface of the chill roll before row.
Preferably, the roll surface truning fixture is set to the right of the chill roll, before production system operation
Turning pretreatment is carried out to the roll surface of the chill roll.
Preferably, the stripping unit is set to the left of the chill roll, for removing the cooling on the chill roll
Band.
Preferably, the winding unit is located at the left of the chill roll, is used for winding strips.
Preferably, the reel of the winding unit rotates counterclockwise.
Preferably, the stripping unit includes gas stripping device.
Preferably, the winding unit includes coiling machine and negative-pressure air fan.Negative-pressure air fan will be from coiling machine by negative pressure
The nanocrystalline strip just passed through is adsorbed on the rotating cylinder of the coiling machine.
The third aspect, the present invention provides the use that the production system as described in second aspect is used to produce nanocrystalline strip
On the way.
Fourth aspect, the present invention also provides the lifes that the production system as described in second aspect is used to produce nanocrystalline strip
Production method, described method includes following steps:
(1) master alloy melting obtains alloy molten steel；
(2) alloy molten steel is transferred to nozzle packet, alloy molten steel obtained by heating stepses (1) obtains heating alloy molten steel；
(3) roll surface of chill roll is pre-processed；
(4) chill roll, the first roll surface grinding attachment and stripping unit are opened, alloy will be heated obtained by step (2)
On the roll surface of pretreated chill roll obtained by molten steel spray to step (3), nanocrystalline strip is obtained；
(5) nanocrystalline strip obtained by step (4) is batched, nanocrystalline strip product is obtained.
Preferably, the temperature of step (1) described melting be 1350-1400 DEG C, such as can be 1350 DEG C, 1360 DEG C,
1370 DEG C, 1380 DEG C, 1390 DEG C or 1400 DEG C, preferably 1370-1380 DEG C.
Master alloy of the present invention should be known in the at a temperature of mobility with higher of melting, those skilled in the art
Dawn, it is any have under the smelting temperature belong to the claimed object of the present invention compared with the master alloy of high fluidity.
Preferably, the temperature of step (2) described heating be 1350-1400 DEG C, such as can be 1350 DEG C, 1360 DEG C,
1370 DEG C, 1380 DEG C, 1390 DEG C or 1400 DEG C, preferably 1370-1380 DEG C.
Preferably, step (3) the pretreated step are as follows: then chill roll described in turning is ground the chill roll
Roll surface.
Preferably, the Lathe quantity of the turning be 0.01-0.3mm, such as can be 0.01mm, 0.02mm, 0.05mm,
0.08mm, 0.1mm, 0.12mm, 0.15mm, 0.18mm, 0.2mm, 0.22mm, 0.25mm, 0.28mm or 0.3mm, preferably
0.02-0.2mm。
Preferably, the surface roughness of chill roll is 0.15-0.35 after the grinding, for example, can be 0.15,0.2,
0.25,0.3 or 0.35, preferably 0.2-0.3.
Preferably, when step (4) described spray, the linear velocity of chill roll is 15-25m/s, such as can be 15m/
S, 16m/s, 17m/s, 18m/s, 19m/s, 20m/s, 21m/, 22m/s, 23m/s, 24m/s or 25m/s, preferably 20m/s.
Preferably, the liquid level of the alloy molten steel be 350-450mm, such as can be 350mm, 360mm, 370mm,
380mm, 390mm, 400mm, 410mm, 420mm, 430mm, 440mm or 450mm, preferably 400mm.
Preferably, the nozzle cups at a distance from chill roll be 1-2.5mm, such as can be 1mm, 1.2mm, 1.5mm,
1.8mm, 2mm, 2.2mm or 2.5mm, preferably 1.5mm.
Preferably, the rotation speed of the first roll surface grinding attachment is 2400-2800r/min, such as can be 2400,
2500,2600,2700 or 2800, preferably 2500-2700r/min.
Preferably, step (5) described the step of batching are as follows: will be received obtained by step (4) as the negative pressure that negative-pressure air fan generates
Rice crystal zone material is adsorbed on the reel of coiling machine, and coiling machine batches the nanocrystalline strip, obtains nanocrystalline strip product.
Preferably, the air output of the negative-pressure air fan is 10000-12000m3/ h, such as can be 10000m3/h、
10500m3/h、11000m3/h、11500m3/ h or 12000m3/ h, preferably 11000m3/h。
Preferably, the reel linear velocity of the coiling machine be 15-25m/s, such as can be 15m/s, 16m/s,
17m/s, 18m/s, 19m/s, 20m/s, 21m/s, 22m/s, 23m/s, 24m/s or 25m/s, preferably 18-22m/s.
As the optimal technical scheme for the production method that fourth aspect present invention provides, described method includes following steps:
(1) 1350-1400 DEG C of master alloy melting obtains alloy molten steel；
(2) alloy molten steel is transferred to nozzle packet, alloy molten steel obtained by heating stepses (1) is added to 1350-1400 DEG C
Thermalloy molten steel；
(3) chill roll described in turning, is then ground the roll surface of the chill roll, and the Lathe quantity of the turning is 0.01-
0.3mm, the surface roughness of chill roll is 0.15-0.35 after grinding；
(4) chill roll, the first roll surface grinding attachment and stripping unit are opened, alloy will be heated obtained by step (2)
On the roll surface of pretreated chill roll obtained by molten steel spray to step (3), nanocrystalline strip, the rotation linear speed of chill roll are obtained
Degree is 15-25m/s, and the liquid level of alloy molten steel is 350-450mm, and nozzle cups are 1-2.5mm, the first roll surface at a distance from chill roll
The rotation speed of grinding attachment is 2400-2800r/min；
(5) nanocrystalline strip obtained by step (4) is adsorbed on the reel of coiling machine as the negative pressure that negative-pressure air fan generates,
Coiling machine batches the nanocrystalline strip, obtains nanocrystalline strip product, and the air quantity of the negative-pressure air fan is 10000-
12000m3/ h, the reel linear velocity of coiling machine are 15-25m/s.
Numberical range of the present invention not only includes enumerated point value, further includes the above-mentioned numerical value not included
Arbitrary point value between range, as space is limited and for concise consideration, range described in the present invention no longer exclusive list includes
Specific point value.
Compared with prior art, the invention has the benefit that
(1) the nozzle packet controls the flowing of alloy molten steel by stopper rod device, and method is simple, and setting inside nozzle packet
There is temperature control equipment, the alloy molten steel in nozzle packet can be made to keep higher temperature, improve the mobility of alloy molten steel, from
And can reduce the liquid level of Nei Baonei alloy molten steel, the pressure at nozzle cups is reduced, and then can reduce the thickness of nanocrystalline strip
Degree, the thickness for the nanocrystalline strip being prepared can be down to 14 μm；
(2) production efficiency can be improved, and used in the present invention with dismounting and change in nozzle used in nozzle packet used in the present invention
Nozzle packet is provided with double filter devices, can remove the contaminant filter in alloy molten steel, reduces the probability of nozzle cups blocking；
(3) contact surface of nanocrystalline strip and chill roll is extended, cooling effect is enhanced, cold so as to improve
But the revolving speed of roller, so reduce nanocrystalline strip thickness to 14 μm, and can be improved nanocrystalline strip product production effect
Rate；
(4) nanocrystalline strip removed from chill roll passes through above the reel of devices for taking-up, passes through negative-pressure air fan
Effect is adsorbed onto nanocrystalline strip on reel, batches success rate to 87% to improve.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the nozzle packet that embodiment 1 provides.
Fig. 2 is the structural schematic diagram of forming unit in embodiment 2.
Fig. 3 is the structural schematic diagram of winding unit in embodiment 2.
Fig. 4 is the structural schematic diagram of the nanocrystalline strip production system in embodiment 2.
Fig. 5 is the structural schematic diagram of the nanocrystalline strip production system in embodiment 4.
Wherein: 1, nozzle packet；11, encasing；12, outer backpack cover；13, interior packet；14, temperature-adjusting device；15, nozzle cups；
16 stopper rod devices；17, discharge port；171, the second filter screen；18, funnel device；181, the first filter screen；2, forming unit；21,
Chill roll；22, the first roll surface grinding attachment；23, the second roll surface grinding attachment；24, roll surface truning fixture；3, stripping unit；4,
Winding unit；41, reel；5, movable fixture.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
I) the manufacturing equipment of nanocrystalline strip
Embodiment 1
A kind of nozzle packet 1 is present embodiments provided, the structural schematic diagram of the nozzle packet 1 is as shown in Figure 1, nozzle packet 1 wraps
Include encasing 11, outer backpack cover 12, it is interior packet 13, temperature-adjusting device 14, funnel device 18, stopper rod device 16, movable fixture 5 with
And it is set to dismountable nozzle cups 15 of 11 bottom of encasing.
13 bottoms of the interior packet are provided with discharge port 17, and discharge port 17 is connected with the nozzle cups 15；The stopper rod device
16 stopper rod passes through the correspondence aperture on the outer backpack cover 12, for blocking the discharge port 17 of 13 bottoms of interior packet setting；Institute
State the second filter screen 171 for being provided in discharge port 17 and preparing using refractory material；The axis of the discharge port 17, nozzle cups 15
Axis be overlapped with the axis of the stopper rod；The refractory material includes zirconium oxide, aluminium oxide, lanthana, cerium oxide, carbonization
Any one in silicon, titanium carbide or boron nitride.
The first filter screen 181 prepared using refractory material is provided in the funnel device 18.
Embodiment 2
Present embodiments provide a kind of production system of nanocrystalline strip, the structural schematic diagram of production system as shown in figure 4,
The production system includes the nozzle packet 1 provided in forming unit 2, stripping unit 3, winding unit 4 and embodiment 1, wherein
The structural schematic diagram of forming unit 2 is as shown in Fig. 2, the structural schematic diagram of winding unit 4 is as shown in Figure 3.
The forming unit 2 includes chill roll 21, the first roll surface grinding attachment 22, the second roll surface grinding attachment 23 and roller
Facing device 24；The chill roll 21 is located at the lower section of the nozzle packet 1.
The chill roll 21 is rotated counterclockwise around its own rotary shaft；The first roll surface grinding attachment 22 is set to institute
The right for stating chill roll 21, for being ground the roll surface of the chill roll 21, the first roll surface grinding dress when production system operation
22 are set to rotate counterclockwise around its own rotary shaft；The second roll surface grinding attachment 23 is done around its own rotary shaft to be turned counterclockwise
Dynamic, the second roll surface grinding attachment 23 is set to the left of the chill roll 21, preceding to described cold for production system operation
But the roll surface of roller 21 carries out grinding pretreatment；The roll surface truning fixture 24 is set to the left of the chill roll 21, is used for institute
Turning pretreatment is carried out to the roll surface of the chill roll 21 before stating production system operation.
The stripping unit 3 is set to the right of the chill roll 21, for removing the cooling zone on the chill roll 21
Material；The winding unit 4 is located at the right of the chill roll 21, is used for winding strips；The volume of coiling machine in the winding unit 4
Cylinder 41 rotates clockwise, and the negative pressure that the negative-pressure air fan in winding unit 4 generates is by 2 gained nanocrystalline strip of forming unit from reel
41 tops are adsorbed on the reel 41 of coiling machine.
Embodiment 3
A kind of production system of nanocrystalline strip is present embodiments provided, the production system includes forming unit 2, removing
The nozzle packet 1 provided in unit 3, winding unit 4 and embodiment 1.
The forming unit 2 includes chill roll 21, the first roll surface grinding attachment 22, the second roll surface grinding attachment 23 and roller
Facing device 24；The chill roll 21 is located at the lower section of the nozzle packet 1.
The chill roll 21 is rotated clockwise around its own rotary shaft；The first roll surface grinding attachment 22 is set to institute
The left for stating chill roll 21, for being ground the roll surface of the chill roll 21, the first roll surface grinding dress when production system operation
22 are set to rotate clockwise around its own rotary shaft；The second roll surface grinding attachment 23 is done around its own rotary shaft to be turned clockwise
Dynamic, the second roll surface grinding attachment 23 is set to the right of the chill roll 21, preceding to described cold for production system operation
But the roll surface of roller 21 carries out grinding pretreatment；The roll surface truning fixture 24 is set to the right of the chill roll 21, is used for institute
Turning pretreatment is carried out to the roll surface of the chill roll 21 before stating production system operation.
The stripping unit 3 is set to the left of the chill roll 21, for removing the cooling zone on the chill roll 21
Material；The winding unit 4 is located at the left of the chill roll 21, is used for winding strips；The volume of coiling machine in the winding unit 4
Cylinder 41 rotates counterclockwise, and the negative pressure that the negative-pressure air fan in winding unit 4 generates is by 2 gained nanocrystalline strip of forming unit from reel
41 tops are adsorbed on the reel 41 of coiling machine.
Embodiment 4
Present embodiments provide a kind of production system of nanocrystalline strip, the structural schematic diagram of production system as shown in figure 5,
The production system includes the nozzle packet 1 provided in forming unit 2, stripping unit 3, winding unit 4 and embodiment 1.
The forming unit 2 includes chill roll 21, the first roll surface grinding attachment 22, the second roll surface grinding attachment 23 and roller
Facing device 24；The chill roll 21 is located at the lower section of the nozzle packet 1.
The chill roll 21 is rotated counterclockwise around its own rotary shaft；The first roll surface grinding attachment 22 is set to institute
The left for stating chill roll 21, for being ground the roll surface of the chill roll 21, the first roll surface grinding dress when production system operation
22 are set to rotate counterclockwise around its own rotary shaft；The second roll surface grinding attachment 23 is done around its own rotary shaft to be turned counterclockwise
Dynamic, the second roll surface grinding attachment 23 is set to the right of the chill roll 21, preceding to described cold for production system operation
But the roll surface of roller 21 carries out grinding pretreatment；The roll surface truning fixture 24 is set to the right of the chill roll 21, is used for institute
Turning pretreatment is carried out to the roll surface of the chill roll 21 before stating production system operation.
The stripping unit 3 is set to the left of the chill roll 21, for removing the cooling zone on the chill roll 21
Material；The winding unit 4 is located at the left of the chill roll 21, is used for winding strips；The volume of coiling machine in the winding unit 4
Cylinder 41 rotates clockwise, and the negative pressure that the negative-pressure air fan in winding unit 4 generates is by 2 gained nanocrystalline strip of forming unit from reel
41 lower sections are adsorbed on the reel 41 of coiling machine.
II) the manufacturing method of nanocrystalline strip
Application examples 1
The application example provides a kind of method of the production equipment production nanocrystalline strip of Application Example 2, the method
Include the following steps:
(1) 1350 DEG C of master alloy melting, obtains alloy molten steel；
(2) alloy molten steel is transferred to nozzle packet 1, alloy molten steel obtained by heating stepses (1) obtains heating and close to 1350 DEG C
Golden molten steel；
(3) chill roll 21 described in turning, is then ground the roll surface of the chill roll 21, and the Lathe quantity of the turning is
0.1mm, the surface roughness of chill roll 21 is 0.25 after grinding；
(4) chill roll 21, the first roll surface grinding attachment 22 and stripping unit 3 are opened, will be heated obtained by step (2)
On the roll surface of pretreated chill roll 21 obtained by steel alloy water jet to step (3), nanocrystalline strip is obtained, chill roll 21
Linear velocity is 20m/s, and the liquid level of alloy molten steel is 400mm, and nozzle cups 15 are 1.6mm at a distance from chill roll 21, first
The rotation speed of roll surface grinding attachment 22 is 2600r/min；
(5) nanocrystalline strip obtained by step (4) is adsorbed onto the reel 41 of coiling machine as the negative pressure of negative-pressure air fan generation
On, coiling machine batches the nanocrystalline strip, obtains nanocrystalline strip product, and the air quantity of the negative-pressure air fan is 11000m3/ h,
41 linear velocity of reel of coiling machine is 20m/s.
Application examples 2
The application example provides a kind of method of the production equipment production nanocrystalline strip of Application Example 3, the method
Include the following steps:
(1) 1370 DEG C of master alloy melting, obtains alloy molten steel；
(2) alloy molten steel is transferred to nozzle packet 1, alloy molten steel obtained by heating stepses (1) obtains heating and close to 1370 DEG C
Golden molten steel；
(3) chill roll 21 described in turning, is then ground the roll surface of the chill roll 21, and the Lathe quantity of the turning is
0.2mm, the surface roughness of chill roll 21 is 0.2 after grinding；
(4) chill roll 21, the first roll surface grinding attachment 22 and stripping unit 3 are opened, will be heated obtained by step (2)
On the roll surface of pretreated chill roll 21 obtained by steel alloy water jet to step (3), nanocrystalline strip is obtained, chill roll 21
Linear velocity is 22m/s, and the liquid level of alloy molten steel is 420mm, and nozzle cups 15 are 2mm, the first roller at a distance from chill roll 21
The rotation speed of face grinding attachment 22 is 2700r/min；
(5) nanocrystalline strip obtained by step (4) is adsorbed onto the reel 41 of coiling machine as the negative pressure of negative-pressure air fan generation
On, coiling machine batches the nanocrystalline strip, obtains nanocrystalline strip product, and the air quantity of the negative-pressure air fan is 11000m3/ h,
41 linear velocity of reel of coiling machine is 22m/s.
Application examples 3
The application example provides a kind of method of the production equipment production nanocrystalline strip of Application Example 2, the method
Include the following steps:
(1) 1380 DEG C of master alloy melting, obtains alloy molten steel；
(2) alloy molten steel is transferred to nozzle packet 1, alloy molten steel obtained by heating stepses (1) obtains heating and close to 1380 DEG C
Golden molten steel；
(3) chill roll 21 described in turning, is then ground the roll surface of the chill roll 21, and the Lathe quantity of the turning is
0.02mm, the surface roughness of chill roll 21 is 0.3 after grinding；
(4) chill roll 21, the first roll surface grinding attachment 22 and stripping unit 3 are opened, will be heated obtained by step (2)
On the roll surface of pretreated chill roll 21 obtained by steel alloy water jet to step (3), nanocrystalline strip is obtained, chill roll 21
Linear velocity is 18m/s, and the liquid level of alloy molten steel is 380mm, and nozzle cups 15 are 1.2mm at a distance from chill roll 21, first
The rotation speed of roll surface grinding attachment 22 is 2500r/min；
(5) nanocrystalline strip obtained by step (4) is adsorbed onto the reel 41 of coiling machine as the negative pressure of negative-pressure air fan generation
On, coiling machine batches the nanocrystalline strip, obtains nanocrystalline strip product, and the air quantity of the negative-pressure air fan is 12000m3/ h,
41 linear velocity of reel of coiling machine is 18m/s.
Application examples 4
The application example provides a kind of method of the production equipment production nanocrystalline strip of Application Example 3, the method
Include the following steps:
(1) 1400 DEG C of master alloy melting, obtains alloy molten steel；
(2) alloy molten steel is transferred to nozzle packet 1, alloy molten steel obtained by heating stepses (1) obtains heating and close to 1400 DEG C
Golden molten steel；
(3) chill roll 21 described in turning, is then ground the roll surface of the chill roll 21, and the Lathe quantity of the turning is
0.3mm, the surface roughness of chill roll 21 is 0.15 after grinding；
(4) chill roll 21, the first roll surface grinding attachment 22 and stripping unit 3 are opened, will be heated obtained by step (2)
On the roll surface of pretreated chill roll 21 obtained by steel alloy water jet to step (3), nanocrystalline strip is obtained, chill roll 21
Linear velocity is 25m/s, and the liquid level of alloy molten steel is 450mm, and nozzle cups 15 are 2.5mm at a distance from chill roll 21, first
The rotation speed of roll surface grinding attachment 22 is 2800r/min；
(5) nanocrystalline strip obtained by step (4) is adsorbed onto the reel 41 of coiling machine as the negative pressure of negative-pressure air fan generation
On, coiling machine batches the nanocrystalline strip, obtains nanocrystalline strip product, and the air quantity of the negative-pressure air fan is 12000m3/ h,
41 linear velocity of reel of coiling machine is 25m/s.
Application examples 5
The application example provides a kind of method of the production equipment production nanocrystalline strip of Application Example 2, the method
Include the following steps:
(1) 1400 DEG C of master alloy melting, obtains alloy molten steel；
(2) alloy molten steel is transferred to nozzle packet 1, alloy molten steel obtained by heating stepses (1) obtains heating and close to 1400 DEG C
Golden molten steel；
(3) chill roll 21 described in turning, is then ground the roll surface of the chill roll 21, and the Lathe quantity of the turning is
0.01mm, the surface roughness of chill roll 21 is 0.35 after grinding；
(4) chill roll 21, the first roll surface grinding attachment 22 and stripping unit 3 are opened, will be heated obtained by step (2)
On the roll surface of pretreated chill roll 21 obtained by steel alloy water jet to step (3), nanocrystalline strip is obtained, chill roll 21
Linear velocity is 15m/s, and the liquid level of alloy molten steel is 350mm, and nozzle cups 15 are 1mm, the first roller at a distance from chill roll 21
The rotation speed of face grinding attachment 22 is 2400r/min；
(5) nanocrystalline strip obtained by step (4) is adsorbed onto the reel 41 of coiling machine as the negative pressure of negative-pressure air fan generation
On, coiling machine batches the nanocrystalline strip, obtains nanocrystalline strip product, and the air quantity of the negative-pressure air fan is 10000m3/ h,
41 linear velocity of reel of coiling machine is 15m/s.
Application examples 6
The application example provides a kind of method of the production equipment production nanocrystalline strip of Application Example 4, the method
It is identical as application examples 2.
Application examples 7
The application example provides a kind of method of the production equipment production nanocrystalline strip of Application Example 4, the method
It is identical as application examples 3.
Application examples 8
The application example provides a kind of method of the production equipment production nanocrystalline strip of Application Example 4, the method
It is identical as application examples 4.
Application examples 9
The application example provides a kind of method of the production equipment production nanocrystalline strip of Application Example 4, the method
It is identical as application examples 5.
Application examples 10
The application example provides a kind of method of the production equipment production nanocrystalline strip of Application Example 4, the method
It is identical as application examples 1.
Application examples 11
The application example provides a kind of method for producing nanocrystalline strip, and the method is identical as application examples 1, and production used is set
There is no temperature-adjusting device 14 in spray belt bag in standby.
The thickness of the application examples 1-11 of the present invention nanocrystalline strip being prepared is measured, gained nanocrystalline strip
Thickness data is as shown in table 1.
Table 1
| Nanocrystalline strip thickness/μm | Batch success rate/% | |
| Application examples 1 | 16 | 85 |
| Application examples 2 | 15 | 83 |
| Application examples 3 | 18 | 86 |
| Application examples 4 | 14 | 80 |
| Application examples 5 | 19 | 87 |
| Application examples 6 | 18 | 64 |
| Application examples 7 | 18 | 58 |
| Application examples 8 | 19 | 67 |
| Application examples 9 | 19 | 56 |
| Application examples 10 | 20 | 68 |
| Application examples 11 | 23 | 84 |
As shown in Table 1, the nanocrystalline strip production equipment that application examples 1-5 application embodiment of the present invention 2-3 is provided is produced
Nanocrystalline strip with a thickness of 14-19 μm, the success rate of batching of the nanocrystalline strip that is prepared is 80-87%.
Application examples 11 is compared with application examples 1, without temperature-adjusting device in the spray belt bag of production equipment used, after melting
Alloy molten steel cools down in spray belt bag, and mobility is deteriorated, during chill roll is surface-cooled, the thickness of gained nanocrystalline strip
Spend it is larger, be 23 μm, greater than 16 μm in application examples 1.
Production equipment used in application examples 6 is provided by embodiment 4, alloy molten steel cooling 1/4 circumference on chill roll, with reality
It applies cooling 3/4 circumference in example 2,3 to compare, cooling time shortens.Therefore the band in application examples 6 by removing cannot be effective
Ground cooling, the quality of nanocrystalline strip produced is bad, and due to removing when temperature it is still higher, band brittleness is big, from
Curling nanocrystalline strip causes to batch success rate to be only 64% below reel, lower than 85% in application examples 1.
Production equipment used in application examples 7 is provided by embodiment 4, alloy molten steel cooling 1/4 circumference on chill roll, with reality
It applies cooling 3/4 circumference in example 2,3 to compare, cooling time shortens.Therefore the band in application examples 7 by removing cannot be effective
Ground cooling, the quality of nanocrystalline strip produced is bad, and due to removing when temperature it is still higher, band brittleness is big, from
Curling nanocrystalline strip causes to batch success rate to be only 58% below reel, lower than 83% in application examples 1.
Production equipment used in application examples 8 is provided by embodiment 4, alloy molten steel cooling 1/4 circumference on chill roll, with reality
It applies cooling 3/4 circumference in example 2,3 to compare, cooling time shortens.Therefore the band in application examples 8 by removing cannot be effective
Ground cooling, the quality of nanocrystalline strip produced is bad, and due to removing when temperature it is still higher, band brittleness is big, from
Curling nanocrystalline strip causes to batch success rate to be only 67% below reel, lower than 86% in application examples 1.
Production equipment used in application examples 9 is provided by embodiment 4, alloy molten steel cooling 1/4 circumference on chill roll, with reality
It applies cooling 3/4 circumference in example 2,3 to compare, cooling time shortens.Therefore the band in application examples 9 by removing cannot be effective
Ground cooling, the quality of nanocrystalline strip produced is bad, and due to removing when temperature it is still higher, band brittleness is big, from
Curling nanocrystalline strip causes to batch success rate to be only 56% below reel, lower than 80% in application examples 1.
Production equipment used in application examples 10 is provided by embodiment 4, alloy molten steel cooling 1/4 circumference on chill roll, with
Cooling 3/4 circumference is compared in embodiment 2,3, and cooling time shortens.Therefore the band in application examples 10 by removing cannot get
Effectively cool down, the quality of nanocrystalline strip produced is bad, and due to removing when temperature it is still higher, band brittleness
Greatly, curling nanocrystalline strip causes to batch success rate to be only 68% below reel, lower than 87% in application examples 1.
To sum up, the nozzle packet controls the flowing of alloy molten steel by stopper rod device, and method is simple, and sets inside nozzle packet
It is equipped with temperature control equipment, the alloy molten steel in nozzle packet can be made to keep higher temperature, improve the mobility of alloy molten steel,
So as to reduce the liquid level of Nei Baonei alloy molten steel, the pressure at nozzle cups is reduced, and then can reduce nanocrystalline strip
The thickness of thickness, the nanocrystalline strip being prepared can be down to 14 μm；Nozzle used in nozzle packet used in the present invention can be dismantled more
It changes, production efficiency can be improved, and nozzle packet used in the present invention is provided with double filter devices, it can be by the impurity mistake in alloy molten steel
It filters out, reduces the probability of nozzle cups blocking；The present invention extends the contact surface of nanocrystalline strip and chill roll, and cooling effect obtains
Enhancing has been arrived, so as to improve the revolving speed of chill roll, and then has reduced the thickness of nanocrystalline strip to 14 μm, and can be improved
The production efficiency of nanocrystalline strip product；The nanocrystalline strip removed from chill roll passes through above the reel of devices for taking-up,
Nanocrystalline strip is adsorbed on reel by the effect of negative-pressure air fan, batches success rate to 87% to improve.
The Applicant declares that the foregoing is merely a specific embodiment of the invention, but protection scope of the present invention not office
It is limited to this, it should be clear to those skilled in the art, any to belong to those skilled in the art and take off in the present invention
In the technical scope of dew, any changes or substitutions that can be easily thought of, and all of which fall within the scope of protection and disclosure of the present invention.
Claims (10)
1. a kind of nozzle packet, the nozzle packet includes encasing, outer backpack cover, interior packet, temperature-adjusting device, funnel device and sets
It is placed in dismountable nozzle cups of the encasing bottom, which is characterized in that the nozzle packet further includes stopper rod device；
The bottom Nei Bao is provided with discharge port, and discharge port is connected with the nozzle cups；
The stopper rod of the stopper rod device passes through the correspondence aperture that the outsourcing covers, for blocking going out for the bottom the Nei Bao setting
Material mouth；
The axis of the discharge port, the axis of nozzle cups are overlapped with the axis of the stopper rod.
2. nozzle packet according to claim 1, which is characterized in that be provided with the first filter screen in the funnel device；
Preferably, the second filter screen is provided in the discharge port；
Preferably, first filter screen is prepared with the second filter screen using refractory material；
Preferably, the refractory material includes zirconium oxide, aluminium oxide, lanthana, cerium oxide, silicon carbide, titanium carbide or boron nitride
In any one；
Preferably, the nozzle packet is additionally provided with movable fixture.
3. a kind of production system of nanocrystalline strip, which is characterized in that the production system includes smelting unit, such as claim
The 1 or 2 nozzle packets, forming unit, stripping unit and winding unit；
The forming unit includes chill roll, the first roll surface grinding attachment, the second roll surface grinding attachment and roll surface truning fixture；
The chill roll is located at the lower section of the nozzle packet.
4. production system according to claim 3, which is characterized in that the chill roll is done counterclockwise around its own rotary shaft
Rotation；
Preferably, the first roll surface grinding attachment is rotated counterclockwise around its own rotary shaft；
Preferably, the first roll surface grinding attachment is set to the right of the chill roll, when for production system operation
It is ground the roll surface of the chill roll；
Preferably, the second roll surface grinding attachment is rotated counterclockwise around its own rotary shaft；
Preferably, the second roll surface grinding attachment is set to the left of the chill roll, before production system operation
Grinding pretreatment is carried out to the roll surface of the chill roll；
Preferably, the roll surface truning fixture is set to the left of the chill roll, preceding to institute for production system operation
The roll surface for stating chill roll carries out turning pretreatment；
Preferably, the stripping unit is set to the right of the chill roll, for removing the cooling band on the chill roll；
Preferably, the winding unit is located at the right of the chill roll, is used for winding strips；
Preferably, the reel of the winding unit rotates clockwise.
5. production system according to claim 3, which is characterized in that the chill roll is done clockwise around its own rotary shaft
Rotation；
Preferably, the first roll surface grinding attachment is rotated clockwise around its own rotary shaft；
Preferably, the first roll surface grinding attachment is set to the left of the chill roll, when for production system operation
It is ground the roll surface of the chill roll；
Preferably, the second roll surface grinding attachment is rotated clockwise around its own rotary shaft；
Preferably, the second roll surface grinding is filled with the right for being set to the chill roll, before production system operation
Grinding pretreatment is carried out to the roll surface of the chill roll；
Preferably, the roll surface truning fixture is set to the right of the chill roll, preceding to institute for production system operation
The roll surface for stating chill roll carries out turning pretreatment；
Preferably, the stripping unit is set to the left of the chill roll, for removing the cooling band on the chill roll；
Preferably, the winding unit is located at the left of the chill roll, is used for winding strips；
Preferably, the reel of the winding unit rotates counterclockwise.
6. production system according to claim 4 or 5, which is characterized in that the stripping unit includes gas stripping device；
Preferably, the winding unit includes coiling machine and negative-pressure air fan.
7. a kind of purposes for being used to produce nanocrystalline strip according to the described in any item production systems of claim 3-6.
8. a kind of production method according to the described in any item production system production nanocrystalline strips of claim 3-6, feature
It is, described method includes following steps:
(1) master alloy melting obtains alloy molten steel；
(2) alloy molten steel is transferred to nozzle packet, alloy molten steel obtained by heating stepses (1) obtains heating alloy molten steel；
(3) roll surface of chill roll is pre-processed；
(4) chill roll, the first roll surface grinding attachment and stripping unit are opened, alloy molten steel will be heated obtained by step (2)
On the roll surface of pretreated chill roll obtained by spray to step (3), nanocrystalline strip is obtained；
(5) nanocrystalline strip obtained by step (4) is batched, nanocrystalline strip product is obtained.
9. production method according to claim 8, which is characterized in that the temperature of step (1) described melting is 1350-1400
DEG C, preferably 1370-1380 DEG C；
Preferably, the temperature of step (2) described heating is 1350-1400 DEG C, preferably 1370-1380 DEG C；
Preferably, step (3) the pretreated step are as follows: then chill roll described in turning is ground the roll surface of the chill roll；
Preferably, the Lathe quantity of the turning is 0.01-0.3mm, preferably 0.02-0.2mm；
Preferably, the surface roughness of chill roll is 0.15-0.35, preferably 0.2-0.3 after the grinding；
Preferably, when step (4) described spray, the linear velocity of chill roll is 15-25m/s, preferably 18-22m/s；
Preferably, the liquid level of the alloy molten steel is 350-450mm, preferably 380-420mm；
Preferably, the nozzle cups are 1-2.5mm, preferably 1.2-2mm at a distance from chill roll；
Preferably, the rotation speed of step (4) the first roll surface grinding attachment is 2400-2800r/min, preferably 2500-
2700r/min；
Preferably, step (5) described the step of batching are as follows: will be nanocrystalline obtained by step (4) as the negative pressure that negative-pressure air fan generates
Band is adsorbed on the reel of coiling machine, and coiling machine batches the nanocrystalline strip, obtains nanocrystalline strip product；
Preferably, the air quantity of the negative-pressure air fan is 10000-12000m3/ h, preferably 11000-12000m3/h；
Preferably, the reel linear velocity of the coiling machine is 15-25m/s, preferably 18-22m/s.
10. production method according to claim 8 or claim 9, which is characterized in that described method includes following steps:
(1) 1350-1400 DEG C of master alloy melting obtains alloy molten steel；
(2) alloy molten steel is transferred to nozzle packet, alloy molten steel obtained by heating stepses (1) obtains heating and close to 1350-1400 DEG C
Golden molten steel；
(3) then chill roll described in turning is ground the roll surface of the chill roll, the Lathe quantity of the turning is 0.01-0.3mm,
The surface roughness of chill roll is 0.15-0.35 after grinding；
(4) chill roll, the first roll surface grinding attachment and stripping unit are opened, alloy molten steel will be heated obtained by step (2)
On the roll surface of pretreated chill roll obtained by spray to step (3), nanocrystalline strip is obtained, the linear velocity of chill roll is
15-25m/s, the liquid level of alloy molten steel are 350-450mm, and nozzle cups are 1-2.5mm, the grinding of the first roll surface at a distance from chill roll
The rotation speed of device is 2400-2800r/min；
(5) nanocrystalline strip obtained by step (4) is adsorbed on the reel of coiling machine as the negative pressure that negative-pressure air fan generates, is batched
Machine batches the nanocrystalline strip, obtains nanocrystalline strip product, and the air quantity of the negative-pressure air fan is 10000-12000m3/ h,
The reel linear velocity of coiling machine is 15-25m/s.
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| CN201811518848.8A CN109570462B (en) | 2018-12-12 | 2018-12-12 | Production system and method of nanocrystalline strip |
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|---|---|---|---|
| CN201811518848.8A CN109570462B (en) | 2018-12-12 | 2018-12-12 | Production system and method of nanocrystalline strip |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113333697A (en) * | 2021-05-20 | 2021-09-03 | 北京科技大学 | Three-roller thin belt continuous casting machine with stripping roller |
| CN114574785A (en) * | 2020-12-01 | 2022-06-03 | 安泰非晶科技有限责任公司 | Amorphous nanocrystalline alloy strip and manufacturing method thereof |
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| CN109570462B (en) | 2020-11-10 |
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