CN109174968A - A kind of Impulsive Current auxiliary deep cooling friction speed asymmetrical rolling apparatus and method preparing ultrafine grain metal band - Google Patents
A kind of Impulsive Current auxiliary deep cooling friction speed asymmetrical rolling apparatus and method preparing ultrafine grain metal band Download PDFInfo
- Publication number
- CN109174968A CN109174968A CN201810995765.1A CN201810995765A CN109174968A CN 109174968 A CN109174968 A CN 109174968A CN 201810995765 A CN201810995765 A CN 201810995765A CN 109174968 A CN109174968 A CN 109174968A
- Authority
- CN
- China
- Prior art keywords
- deep cooling
- working roll
- sheet metal
- rolling
- metal strip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 125
- 239000002184 metal Substances 0.000 title claims abstract description 125
- 238000001816 cooling Methods 0.000 title claims abstract description 84
- 238000005096 rolling process Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000002788 crimping Methods 0.000 claims abstract description 54
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 102
- 229910052757 nitrogen Inorganic materials 0.000 claims description 51
- 238000003801 milling Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims description 8
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 5
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims 1
- 238000002360 preparation method Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000007769 metal material Substances 0.000 description 3
- 210000001367 artery Anatomy 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 229910000967 As alloy Inorganic materials 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000011825 aerospace material Substances 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/46—Roll speed or drive motor control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B9/00—Measures for carrying out rolling operations under special conditions, e.g. in vacuum or inert atmosphere to prevent oxidation of work; Special measures for removing fumes from rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B2003/001—Aluminium or its alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B2003/005—Copper or its alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/20—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2275/00—Mill drive parameters
- B21B2275/02—Speed
- B21B2275/04—Roll speed
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
A kind of Impulsive Current auxiliary deep cooling friction speed asymmetrical rolling device preparing ultrafine grain metal band, including left side deep cooling box and right side deep cooling box, there is left side metal crimping device in the deep cooling box of left side, there is right side metal crimping device in the deep cooling box of right side, sheet metal strip both ends to be rolled are separately positioned on left side metal crimping device and right side metal crimping device, upper and lower in the middle position of sheet metal strip is respectively arranged to the top working roll and bottom working roll rolled to it, the left side conductive rollers and right side conductive roller of connection Impulsive Current power supply are respectively arranged in the two sides of top working roll and bottom working roll, left side conductive rollers and right side conductive roller act on sheet metal strip, apply Impulsive Current to it, top working roll is different with the revolving speed of bottom working roll.The present invention also provides corresponding Impulsive Currents to assist deep cooling friction speed asynchronous rolling method, is suitble to prepare large-sized Ultra-fine Grained high-performance band, and avoidable rolled piece edge is cracked, has important prospect of the application.
Description
Technical field
The invention belongs to ultrafine grain metal field of material technology, in particular to a kind of strong arteries and veins for preparing ultrafine grain metal band
Rush electric current auxiliary deep cooling friction speed asymmetrical rolling apparatus and method.
Background technique
Ultrafine grain metal material has good corrosion resistance and anti-fatigue performance due to excellent in mechanical performance, obtains
To the extensive concern of engineering staff and scientific research personnel.A large amount of large plastometric set method is developed to go to prepare ultrafine grain metal
Material.Such as the methods of equal channel pressings method, high pressure torsion, accumulation pack rolling.Equal channel pressings method is suitble to prepare bar, high
Pressure torsion method is suitble to prepare small sample.Above two method can not be used to prepare strip product.Accumulate pack rolling method
It is suitble to preparation strip product, but major defect is that rolled piece edge is easy to appear crackle, also, it needs to carry out surface to rolled piece
Processing.
Summary of the invention
In order to overcome the disadvantages of the above prior art, ultrafine grain metal band is prepared the purpose of the present invention is to provide a kind of
Impulsive Current assist deep cooling friction speed asymmetrical rolling apparatus and method, be suitble to prepare large-sized Ultra-fine Grained high-performance aluminium alloy
Band, copper alloy band, titanium alloy strip etc. promote material at low temperature and deform plasticity, subtract due to applying electric pulse when plastic deformation
Small deformation drag increases the processing times of material, and intensity is improved and improves with plasticity, can avoid rolled piece edge and splits
Line, using the high performance sheet metal strip of technology preparation in structural material, aerospace material, shellproof protection, automobile light weight
The fields such as change have important prospect of the application.
To achieve the goals above, the technical solution adopted by the present invention is that:
A kind of Impulsive Current auxiliary deep cooling friction speed asymmetrical rolling device preparing ultrafine grain metal band, including left side are deep
Ice chest 1 and right side deep cooling box 18 have left side metal crimping device 2 in left side deep cooling box 1, there is right side metal in right side deep cooling box 18
Crimping device 17,3 both ends of sheet metal strip to be rolled are separately positioned on left side metal crimping device 2 and right side metal crimping device
On 17, the upper and lower in the middle position of sheet metal strip 3 is respectively arranged to the top working roll 9 rolled to it and lower work
Roller 10 is respectively arranged with the left side conductive rollers 5 of connection Impulsive Current power supply 6 in the two sides of top working roll 9 and bottom working roll 10
With right side conductive roller 15, left side conductive rollers 5 and right side conductive roller 15 act on sheet metal strip 3, apply Impulsive Current to it,
It is characterized in that, the top working roll 9 is different with the revolving speed of bottom working roll 10.
The two sides of the top working roll 9 and bottom working roll 10 are separately provided for driving 3 side-to-side movement of sheet metal strip
Left side deflector roll 4 and right side deflector roll 16.
It is provided with upper backup roll 11 above the top working roll 9, lower backing roll 12 is provided with below bottom working roll 10.
The left side of the top working roll 9 and bottom working roll 10 is respectively arranged with the upper left side nitrogen above sheet metal strip 3
The right side of gas jets 7 and the lower left side nitrogen nozzle 8 below sheet metal strip 3, top working roll 9 and bottom working roll 10 is set respectively
It is equipped with the upper right side nitrogen nozzle 13 for being located at 3 top of sheet metal strip and the lower right side nitrogen nozzle 14 positioned at 3 lower section of sheet metal strip,
The upper left side nitrogen nozzle 7, lower left side nitrogen nozzle 8, upper right side nitrogen nozzle 13 and lower right side nitrogen nozzle 14 act on
Sheet metal strip 3 realizes the deep cooling temperature control in the operation of rolling.
The left side metal crimping device 2 and right side metal crimping device 17 are by Serve Motor Control, drum diameter Φ
100mm~Φ 500mm adds sleeve diameter identical as drum diameter, wall thickness 80-150mm, and reel length is 600~800mm.
The present invention also provides a kind of Impulsive Currents for preparing ultrafine grain metal band to assist deep cooling friction speed asymmetrical rolling
Method includes the following steps:
Step 1: 3 one end of sheet metal strip is set to left side metal crimping device 2, top working roll 9 and bottom working roll are opened
10 roll gap, after sheet metal strip 3 passes through roll gap, the other end is arranged in right side metal crimping device 17；
Step 2: opening left side deep cooling box 1 and right side deep cooling box 18, cooled down using nitrogen, is controlled according to band amount
Sheet metal strip 3 is set to be uniformly cooled -190 DEG C~-150 DEG C cooling time；
Step 3: opening Impulsive Current power supply 6；
Step 4: open right side metal crimping device 17 or left side metal crimping device 2, make sheet metal strip 3 turn right or
Left side movement, carries out the rolling of Impulsive Current deep cooling, after having rolled all parts, stops right side metal crimping device 17, rolling
In the process, top working roll 9 and bottom working roll 10 roll friction speed ratio V1:V2 control between 1.1-1.4；
Step 5: open left side metal crimping device 2 or right side metal crimping device 17, make sheet metal strip 3 toward left side or
Right side movement, carries out the rolling of Impulsive Current deep cooling, after having rolled all parts, stops left side metal crimping device 2, rolled
Cheng Zhong, top working roll 9 and bottom working roll 10 roll friction speed ratio V1:V2 control between 1.1-1.4；
The 4th step and the 5th step are repeated, until the total reduction of rolled piece, that is, sheet metal strip 3 reaches 90%；
Step 6: taking out sheet metal strip 3, ultrafine grain metal band is obtained.
The sheet metal strip 3 is aluminium alloy strips, copper alloy band or titanium alloy strip, width 100mm-500mm, rolling
It is preceding with a thickness of 0.8mm-2.0mm.
The third step, the size of current of Impulsive Current power supply 6 are 3000A~8000A, voltage 12V-200V.
4th step and the 5th step, in the operation of rolling, passes drafts is controlled 15%~35%.
4th step and the 5th step in the operation of rolling, open the upper left side nitrogen of top working roll 9 and 10 two sides of bottom working roll
Gas jets 7, lower left side nitrogen nozzle 8, upper right side nitrogen nozzle 13 and lower right side nitrogen nozzle 14, are arranged the nitrogen temperature of ejection
Lower than -150 DEG C, sheet metal strip 3 is acted on, realizes the deep cooling temperature control in the operation of rolling.
Cardinal principle of the invention is that metal material shows strong plastic deformation ability, arteries and veins under Impulsive Current effect
Rushing electric current can be improved the deformability of the plastic histories material such as drawing, and can be improved the mechanical property of material.Deep cooling
In deformation process, the dislocation density of material can effectively be inhibited, and promote crystal grain refinement.During asymmetrical rolling, rolling
There are biggish Strong shears to deform for deformed area processed.Thus, three kinds of external effects are deformed in conjunction with Impulsive Current, deep cooling, Strong shear
Realize that material grains refinement, strength and toughness improve simultaneously.The present invention is suitable for Ultra-fine Grained high-performance aluminium alloy band, copper at present
The preparation of the materials such as alloy strip steel rolled stock, titanium alloy strip.
Detailed description of the invention
Fig. 1 is Impulsive Current auxiliary deep cooling friction speed asymmetrical rolling apparatus structure schematic diagram of the present invention.
1. left side deep cooling box；2. left side metal crimping device；3. sheet metal strip；4. left side deflector roll；5. left side conductive rollers；6.
Impulsive Current power supply；7. upper left side nitrogen nozzle；8. lower left side nitrogen nozzle；9. top working roll, speed V1；10. lower work
Make roller, speed V2；11. upper backup roll；12. lower backing roll；13. upper right side nitrogen nozzle；14. lower right side nitrogen nozzle；15.
Right side conductive roller；16. right side deflector roll；17. right side metal crimping device；18. right side deep cooling box.
Specific embodiment
The embodiment that the present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of Impulsive Current auxiliary deep cooling friction speed asymmetrical rolling device for preparing ultrafine grain metal band,
Including left side deep cooling box 1 and right side deep cooling box 18, there is left side metal crimping device 2 in left side deep cooling box 1, in right side deep cooling box 18
There is right side metal crimping device 17,3 both ends of sheet metal strip to be rolled are separately positioned on left side metal crimping device 2 and right side gold
Belong on crimping device 17, the upper and lower in the middle position of sheet metal strip 3 is respectively arranged to the upper work rolled to it
Roller 9 and bottom working roll 10 are provided with upper backup roll 11 above top working roll 9, lower backing roll 12 are provided with below bottom working roll 10,
Top working roll 9 is different with 10 revolving speed of bottom working roll, carries out friction speed asymmetrical rolling.
It is conductive in the left side that the two sides of top working roll 9 and bottom working roll 10 are respectively arranged with connection Impulsive Current power supply 6
Roller 5 and right side conductive roller 15, the left side deflector roll 4 for driving 3 side-to-side movement of sheet metal strip and right side deflector roll 16 and for real
The nitrogen nozzle of 3 deep cooling temperature control of sheet metal strip in the existing operation of rolling.
Wherein, left side conductive rollers 5 and right side conductive roller 15 act on sheet metal strip 3, apply Impulsive Current to it.
There are four nitrogen nozzles, respectively upper left side nitrogen nozzle 7, lower left side nitrogen nozzle 8, upper right side nitrogen nozzle 13
With lower right side nitrogen nozzle 14, upper left side nitrogen nozzle 7 and lower left side nitrogen nozzle 8 are located at top working roll 9 and bottom working roll 10
Left side, be separately positioned on 3 upper and lower of sheet metal strip；Upper right side nitrogen nozzle 13 and lower right side nitrogen nozzle 14 are located at upper work
The right side of roller 9 and bottom working roll 10 is separately positioned on 3 upper and lower of sheet metal strip.
For tradition rolling, contact in rolling can be made to form biggish Strong shear using friction speed asymmetrical rolling and become
Shape area, promotes crystallite dimension more to refine.At the same time, asymmetrical rolling can reduce the draught pressure of contact in rolling, make to roll
Part is easier to be rolled thin.
The method for preparing ultrafine grain metal band using the device, includes the following steps:
Step 1: with sheet metal strip 3 (aluminium alloy strips, copper alloy band, titanium alloy strip) for raw material, sheet metal strip 3
Width 100mm-500mm, before rolling with a thickness of 0.8mm-2.0mm.
Step 2: one end of sheet metal strip 3 is set to left side metal crimping device 2, two work roller gaps are opened, it will
The other end is set to right side metal crimping device 17.
Step 3: opening left side deep cooling box 1, cooled down using nitrogen, cooling time is controlled according to band amount, makes metal
Band 3 is uniformly cooled -190 DEG C~-150 DEG C.
Step 4: opening right side deep cooling box 18, temperature is identical as 1 temperature of left side deep cooling box.
Step 5: opening all nitrogen nozzles, the nitrogen temperature of ejection is set lower than -150 DEG C.
Step 6: opening Impulsive Current power supply 6, size of current is 3000A~8000A, voltage 12V-200V.
Step 7: opening right side metal crimping device 17, rotating milling train to the right, carries out Impulsive Current deep cooling and roll
System, rolled piece, which is turned right, carries out rolling deformation, until having rolled all rolled pieces, stops right side metal crimping device 17, milling train.Rolling
In the process, the control of passes drafts is 15%~35%.Top working roll 9 and bottom working roll 10 roll different Transmission Ratio Control and exist
Between 1.1-1.4 (V1:V2).
Step 8: opening left side metal crimping device 2, rotating milling train to the left, the rolling of Impulsive Current deep cooling is carried out,
Rolled piece carries out rolling deformation toward left side, until having rolled all rolled pieces, stops left side metal crimping device 2, milling train.The operation of rolling
In, passes drafts is controlled 15%~35%.Top working roll 9 and bottom working roll 10 roll different Transmission Ratio Control in 1.1-
Between 1.4 (V1:V2).
The 7th step and the 8th step are repeated, until the total reduction of rolled piece, that is, sheet metal strip 3 reaches 90%.
Step 9: taking out rolled piece to get ultrafine grain metal band.
It is two specific embodiments below.
Embodiment 1
Ultra-fine grained aluminium alloy AA5083 band Impulsive Current deep cooling friction speed asymmetrical rolling preparation, with reference to Fig. 1, step is such as
Under:
Step 1: sheet metal strip 3 is aluminium alloy AA5083 band, width 300mm, with a thickness of 1.2mm before rolling.
Step 2: sheet metal strip 3 is put on left side deep cooling box crimping device 2, two work roller gaps are opened, by metal
One end of band 3 is placed on right side deep cooling box crimping device 17.
Step 3: opening left side deep cooling box 1, cooled down using nitrogen, cooling time is controlled according to band amount, makes metal
Band 3 is uniformly cooled -170 DEG C.
Step 4: opening right side deep cooling box 18, temperature is -170 DEG C.
Step 5: opening all nitrogen nozzles, the nitrogen temperature that ejection is arranged is -160 DEG C.
Step 6: opening Impulsive Current power supply 6, size of current 6000A, voltage 15V.
Step 7: opening right side deep cooling box crimping device 17, rotating milling train to the right, carries out Impulsive Current deep cooling and roll
System, rolled piece, which is turned right, carries out rolling deformation, until having rolled all rolled pieces, stops opening right side deep cooling box crimping device 17, roll
Machine.In the operation of rolling, passes drafts is controlled 30%.It is 1.2 that up-down rollers, which roll friction speed ratio,.
Step 8: opening left side deep cooling box crimping device 2, rotating milling train to the left, carries out Impulsive Current deep cooling and roll
System, rolled piece carry out rolling deformation toward left side, until having rolled all rolled pieces, stop left side deep cooling box crimping device 2, milling train.It rolls
During system, passes drafts is controlled 25%.It is 1.2 that up-down rollers, which roll friction speed ratio,.
The 7th step and the 8th step are repeated, until rolled piece is with a thickness of 0.15mm, Ultra-fine Grained AA5083 aluminium alloy strips is obtained, passes through
Test, tensile strength are increased to 240MPa or more by traditional 120MPa.
Embodiment 2
The preparation of Ultra-fine Grained T3 copper strip Impulsive Current deep cooling friction speed asymmetrical rolling, with reference to Fig. 1, steps are as follows:
Step 1: sheet metal strip 3 is T3 copper strip, width 200mm, with a thickness of 1.0mm before rolling.
Step 2: being to be put on left side deep cooling box crimping device 2 by sheet metal strip 3, two work roller gaps are opened, it will be golden
The one end for belonging to band 3 is placed on right side deep cooling box crimping device 17.
Step 3: opening left side deep cooling box 1, cooled down using nitrogen, cooling time is controlled according to band amount, makes metal
Band 3 is uniformly cooled -180 DEG C.
Step 4: opening right side deep cooling box 18, temperature is -180 DEG C.
Step 5: opening all nitrogen nozzles, the nitrogen temperature that ejection is arranged is -160 DEG C.
Step 6: opening Impulsive Current power supply 6, size of current 4000A, voltage 15V.
Step 7: opening right side deep cooling box crimping device 17, rotating milling train to the right, carries out Impulsive Current deep cooling and roll
System, allows rolled piece to turn right and carries out rolling deformation, until having rolled all rolled pieces, stops right side deep cooling box crimping device 17, milling train.
In the operation of rolling, passes drafts is controlled 20%.It is 1.3 that up-down rollers, which roll friction speed ratio,.
Step 8: opening left side deep cooling box crimping device 2, rotating milling train to the left, carries out Impulsive Current deep cooling and roll
System allows rolled piece to carry out rolling deformation toward left side, until having rolled all rolled pieces, stops left side deep cooling box crimping device 2, milling train.
In the operation of rolling, passes drafts is controlled 15%.It is 1.3 that up-down rollers, which roll friction speed ratio,.
The 7th step and the 8th step are repeated, until rolled piece is with a thickness of 0.1mm, Ultra-fine Grained T3 copper strip is obtained, after tested, resists
Tensile strength is promoted to 400MPa or more by 210MPa prepared by traditional handicraft.
Claims (10)
1. a kind of Impulsive Current auxiliary deep cooling friction speed asymmetrical rolling device for preparing ultrafine grain metal band, including left side deep cooling
Case (1) and right side deep cooling box (18), there is left side metal crimping device (2) in left side deep cooling box (1), and right side deep cooling box has in (15)
Right side metal crimping device (17), sheet metal strip to be rolled (3) both ends are separately positioned on left side metal crimping device (2) and the right side
On side metal crimping device (17), the upper and lower in the middle position of sheet metal strip (3) is respectively arranged to roll it
Top working roll (9) and bottom working roll (10), it is strong to be respectively arranged with connection in the two sides of top working roll (9) and bottom working roll (10)
The left side conductive rollers (5) and right side conductive roller (15) of pulse current power supply (6), left side conductive rollers (5) and right side conductive roller (15)
Sheet metal strip (3) are acted on, apply Impulsive Current to it, which is characterized in that the top working roll (9) and bottom working roll (10)
Revolving speed it is different.
2. preparing the Impulsive Current auxiliary deep cooling friction speed asymmetrical rolling dress of ultrafine grain metal band according to claim 1
It sets, which is characterized in that the two sides of the top working roll (9) and bottom working roll (10) are separately provided for driving sheet metal strip
(3) the left side deflector roll (4) and right side deflector roll (16) of side-to-side movement.
3. preparing the Impulsive Current auxiliary deep cooling friction speed asymmetrical rolling dress of ultrafine grain metal band according to claim 1
It sets, which is characterized in that be provided with upper backup roll (11) above the top working roll (9), be provided with down below bottom working roll (10)
Support roller (12).
4. preparing the Impulsive Current auxiliary deep cooling friction speed asymmetrical rolling dress of ultrafine grain metal band according to claim 1
It sets, which is characterized in that be respectively arranged on sheet metal strip (3) on the left of the top working roll (9) and bottom working roll (10)
Side upper left side nitrogen nozzle (7) and be located at sheet metal strip (3) below lower left side nitrogen nozzle (8), top working roll (9) and under
The upper right side nitrogen nozzle (13) that is respectively arranged with above sheet metal strip (3) on the right side of working roll (10) and it is located at metal tape
Lower right side nitrogen nozzle (14) below material (3), the upper left side nitrogen nozzle (7), lower left side nitrogen nozzle (8), upper right side
Nitrogen nozzle (13) and lower right side nitrogen nozzle (14) act on sheet metal strip (3), realize the deep cooling temperature control in the operation of rolling.
5. a kind of Impulsive Current auxiliary deep cooling friction speed asynchronous rolling method for preparing ultrafine grain metal band, which is characterized in that
Include the following steps:
Step 1: sheet metal strip (3) one end is set to left side metal crimping device (2), top working roll (9) and lower work are opened
Roller (10) roll gap, after sheet metal strip (3) passes through roll gap, the other end is arranged in right side metal crimping device (17)；
Step 2: opening left side deep cooling box (1) and right side deep cooling box (18), cooled down using nitrogen, is controlled according to band amount
Sheet metal strip (3) is set to be uniformly cooled -190 DEG C~-150 DEG C cooling time；
Step 3: opening Impulsive Current power supply (6)；
Step 4: opening right side metal crimping device (17) or left side metal crimping device (2), sheet metal strip (3) is made to turn right
Or left side movement, the rolling of Impulsive Current deep cooling is carried out, after having rolled all parts, stops right side metal crimping device (17),
In the operation of rolling, top working roll (9) and bottom working roll (10) rolling friction speed ratio V1:V2 control are between 1.1-1.4；
Step 5: opening left side metal crimping device (2) or right side metal crimping device (17), make sheet metal strip (3) toward left side
Or right side movement, the rolling of Impulsive Current deep cooling is carried out, after having rolled all parts, stops left side metal crimping device (2), rolls
During system, top working roll (9) and bottom working roll (10) rolling friction speed ratio V1:V2 control are between 1.1-1.4；
The 4th step and the 5th step are repeated, until the total reduction of rolled piece, that is, sheet metal strip (3) reaches 90%；
Step 6: taking out sheet metal strip (3), ultrafine grain metal band is obtained.
6. preparing the Impulsive Current auxiliary deep cooling friction speed asymmetrical rolling side of ultrafine grain metal band according to claim 5
Method, which is characterized in that the sheet metal strip (3) is aluminium alloy strips, copper alloy band or titanium alloy strip.
7. assisting deep cooling friction speed asymmetrical rolling according to the Impulsive Current for preparing ultrafine grain metal band of claim 5 or 6
Method, which is characterized in that sheet metal strip (3) the width 100mm-500mm, before rolling with a thickness of 0.8mm-2.0mm.
8. preparing the Impulsive Current auxiliary deep cooling friction speed asymmetrical rolling side of ultrafine grain metal band according to claim 5
Method, which is characterized in that the third step, the size of current of Impulsive Current power supply (6) are 3000A~8000A, voltage 12V-
200V。
9. preparing the Impulsive Current auxiliary deep cooling friction speed asymmetrical rolling side of ultrafine grain metal band according to claim 5
Method, which is characterized in that the 4th step and the 5th step, in the operation of rolling, passes drafts is controlled 15%~35%.
10. preparing the Impulsive Current auxiliary deep cooling milling method of ultrafine grain metal band, feature according to claim 4
It is, the 4th step and the 5th step, in the operation of rolling, opens the upper left side of top working roll (9) and bottom working roll (10) two sides
Nitrogen nozzle (7), lower left side nitrogen nozzle (8), upper right side nitrogen nozzle (13) and lower right side nitrogen nozzle (14), setting spray
Nitrogen temperature be lower than -150 DEG C, act on sheet metal strip (3), realize the operation of rolling in deep cooling temperature control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810995765.1A CN109174968A (en) | 2018-08-29 | 2018-08-29 | A kind of Impulsive Current auxiliary deep cooling friction speed asymmetrical rolling apparatus and method preparing ultrafine grain metal band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810995765.1A CN109174968A (en) | 2018-08-29 | 2018-08-29 | A kind of Impulsive Current auxiliary deep cooling friction speed asymmetrical rolling apparatus and method preparing ultrafine grain metal band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109174968A true CN109174968A (en) | 2019-01-11 |
Family
ID=64916446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810995765.1A Pending CN109174968A (en) | 2018-08-29 | 2018-08-29 | A kind of Impulsive Current auxiliary deep cooling friction speed asymmetrical rolling apparatus and method preparing ultrafine grain metal band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109174968A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109746268A (en) * | 2019-01-16 | 2019-05-14 | 中南大学 | A kind of monolithic band intelligence deep cooling experimental mill and milling method with tension |
| CN109746269A (en) * | 2019-01-16 | 2019-05-14 | 中南大学 | A kind of asynchronous experimental mill of monolithic band intelligence deep cooling friction speed and milling method with tension |
| CN109746270A (en) * | 2019-01-14 | 2019-05-14 | 中南大学 | A kind of reversible deep cooling pack rolling method for separating and preparing of the single chassis of high-performance copper foil |
| CN109746267A (en) * | 2019-01-16 | 2019-05-14 | 中南大学 | A kind of deep cooling milling train and its deep cooling milling method with insulating box |
| CN111575613A (en) * | 2020-05-08 | 2020-08-25 | 中南大学 | Cryogenic electric pulse treatment method for removing residual stress of ultra-fine grain aluminum-lithium alloy thin strip |
| CN112760577A (en) * | 2020-12-28 | 2021-05-07 | 中南大学 | Method for simultaneously improving strength and plasticity of 2219 aluminum-based AlCoCrFeNi composite material plate |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1294312B (en) * | 1961-11-25 | 1969-05-08 | Moossche Eisenwerke Ag | Process and rolling frame for influencing the profile shape when producing profiles by hot rolling round or square steel |
| CN101298653A (en) * | 2008-05-26 | 2008-11-05 | 清华大学深圳研究生院 | High-strength high-toughness AZ91 magnesium alloy strip eletrotoughening process method and system |
| CN102059250A (en) * | 2010-11-09 | 2011-05-18 | 燕山大学 | Electro-plastic two-roll mill of low-temperature liquid nitrogen cooling medium |
| CN202169276U (en) * | 2011-02-09 | 2012-03-21 | 清华大学深圳研究生院 | System for rolling metal material in electroplastic effect and thermal plasticity combined manner |
| CN102912271A (en) * | 2012-10-24 | 2013-02-06 | 中国航空工业集团公司北京航空材料研究院 | Second-phase electrical stimulation nodulizing method for Ni-enriched TiNi shape memory alloy |
| CN203108932U (en) * | 2013-01-29 | 2013-08-07 | 清华大学深圳研究生院 | Metal electricity-plasticity asymmetrical rolling system |
| CN204294619U (en) * | 2014-11-21 | 2015-04-29 | 清华大学深圳研究生院 | The efficient Electroplastic rolling system of titanium alloy strip |
| US20150275122A1 (en) * | 2014-04-01 | 2015-10-01 | Honda Motor Co., Ltd | Novel compositions and integrated processes for advanced warm-forming of light metal alloys |
| CN108144964A (en) * | 2018-02-10 | 2018-06-12 | 太原理工大学 | A kind of method that pulse current auxiliary multi-roll mill rolls ultra-thin foil |
| CN108296286A (en) * | 2018-01-02 | 2018-07-20 | 中南大学 | A kind of continuous reversible deep cooling rolling mill practice preparing high-performing car aluminium alloy strips and equipment |
| CN108435791A (en) * | 2018-05-02 | 2018-08-24 | 中南大学 | A kind of deep cooling asynchronous rolling method preparing stratiform copper/lithium composite foil |
-
2018
- 2018-08-29 CN CN201810995765.1A patent/CN109174968A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1294312B (en) * | 1961-11-25 | 1969-05-08 | Moossche Eisenwerke Ag | Process and rolling frame for influencing the profile shape when producing profiles by hot rolling round or square steel |
| CN101298653A (en) * | 2008-05-26 | 2008-11-05 | 清华大学深圳研究生院 | High-strength high-toughness AZ91 magnesium alloy strip eletrotoughening process method and system |
| CN102059250A (en) * | 2010-11-09 | 2011-05-18 | 燕山大学 | Electro-plastic two-roll mill of low-temperature liquid nitrogen cooling medium |
| CN202169276U (en) * | 2011-02-09 | 2012-03-21 | 清华大学深圳研究生院 | System for rolling metal material in electroplastic effect and thermal plasticity combined manner |
| CN102912271A (en) * | 2012-10-24 | 2013-02-06 | 中国航空工业集团公司北京航空材料研究院 | Second-phase electrical stimulation nodulizing method for Ni-enriched TiNi shape memory alloy |
| CN203108932U (en) * | 2013-01-29 | 2013-08-07 | 清华大学深圳研究生院 | Metal electricity-plasticity asymmetrical rolling system |
| US20150275122A1 (en) * | 2014-04-01 | 2015-10-01 | Honda Motor Co., Ltd | Novel compositions and integrated processes for advanced warm-forming of light metal alloys |
| CN204294619U (en) * | 2014-11-21 | 2015-04-29 | 清华大学深圳研究生院 | The efficient Electroplastic rolling system of titanium alloy strip |
| CN108296286A (en) * | 2018-01-02 | 2018-07-20 | 中南大学 | A kind of continuous reversible deep cooling rolling mill practice preparing high-performing car aluminium alloy strips and equipment |
| CN108144964A (en) * | 2018-02-10 | 2018-06-12 | 太原理工大学 | A kind of method that pulse current auxiliary multi-roll mill rolls ultra-thin foil |
| CN108435791A (en) * | 2018-05-02 | 2018-08-24 | 中南大学 | A kind of deep cooling asynchronous rolling method preparing stratiform copper/lithium composite foil |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109746270A (en) * | 2019-01-14 | 2019-05-14 | 中南大学 | A kind of reversible deep cooling pack rolling method for separating and preparing of the single chassis of high-performance copper foil |
| CN109746268A (en) * | 2019-01-16 | 2019-05-14 | 中南大学 | A kind of monolithic band intelligence deep cooling experimental mill and milling method with tension |
| CN109746269A (en) * | 2019-01-16 | 2019-05-14 | 中南大学 | A kind of asynchronous experimental mill of monolithic band intelligence deep cooling friction speed and milling method with tension |
| CN109746267A (en) * | 2019-01-16 | 2019-05-14 | 中南大学 | A kind of deep cooling milling train and its deep cooling milling method with insulating box |
| CN111575613A (en) * | 2020-05-08 | 2020-08-25 | 中南大学 | Cryogenic electric pulse treatment method for removing residual stress of ultra-fine grain aluminum-lithium alloy thin strip |
| CN111575613B (en) * | 2020-05-08 | 2021-06-04 | 中南大学 | Cryogenic electric pulse treatment method for removing residual stress of ultra-fine grain aluminum-lithium alloy thin strip |
| CN112760577A (en) * | 2020-12-28 | 2021-05-07 | 中南大学 | Method for simultaneously improving strength and plasticity of 2219 aluminum-based AlCoCrFeNi composite material plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109174968A (en) | A kind of Impulsive Current auxiliary deep cooling friction speed asymmetrical rolling apparatus and method preparing ultrafine grain metal band | |
| CN109108070A (en) | A kind of Impulsive Current auxiliary deep cooling rolling device and method preparing ultrafine grain metal band | |
| CN109092897A (en) | A kind of Impulsive Current auxiliary deep cooling reducing asymmetrical rolling apparatus and method preparing ultrafine grain metal band | |
| CN108144964B (en) | A kind of method that pulse current auxiliary multi-roll mill rolls ultra-thin foil | |
| CN100421830C (en) | Method for preparing lamellar composite material of heterogeneic alloy | |
| CN111054748B (en) | Preparation method of pulse current-assisted rolling difficult/easy-to-deform metal composite plate | |
| CN111702008B (en) | Method for rolling three-layer composite ultra-thin strip by multi-roller mill | |
| WO2022061976A1 (en) | Plate and strip rolling process oriented efficient and stable current applying manipulator and method thereof | |
| CN108906889A (en) | A kind of deep cooling asynchronous rolling method preparing high-performance CrCoNi medium entropy alloy foil | |
| CN109351773B (en) | Electro-plastic broadband rolling device | |
| WO2019105112A1 (en) | Roller replacing apparatus and method for rapidly replacing working roller based on roller replacing apparatus | |
| CN112621239B (en) | Copper strip slitting machine with burr cleaning function | |
| CN106244967B (en) | Cold-rolling of steel plate coating integration produces unit and its production technology | |
| CN105290108A (en) | Magnesium alloy sheet strip coupling and deformation combined rolling system and rolling method thereof | |
| US2288184A (en) | Method of making stainless-clad sheet steel | |
| CN104759483B (en) | A kind of production technology of magnesium alloy plate | |
| CN103386420B (en) | A kind of cold-strip steel threading method | |
| CN209238683U (en) | A kind of symmetric form four-roller rod-rolling mill | |
| CN114522988B (en) | Roller conveying device and method for applying current and adjusting distance in plate and strip rolling | |
| CN102615922A (en) | Separating device | |
| CN109746269A (en) | A kind of asynchronous experimental mill of monolithic band intelligence deep cooling friction speed and milling method with tension | |
| CN204135063U (en) | A kind of steel billet shearing outlet device | |
| DE2556057B1 (en) | PROCESS AND DEVICE FOR HEATING METAL STRIPS, IN PARTICULAR NON-FERROUS METAL STRIPS | |
| CN111250540A (en) | Silicon steel cold rolling process based on direct current assistance | |
| CN205312710U (en) | A decoiler for inspection of hot rolling steel band |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190111 |
|
| RJ01 | Rejection of invention patent application after publication |