CN109108070A - A kind of Impulsive Current auxiliary deep cooling rolling device and method preparing ultrafine grain metal band - Google Patents
A kind of Impulsive Current auxiliary deep cooling rolling device and method preparing ultrafine grain metal band Download PDFInfo
- Publication number
- CN109108070A CN109108070A CN201810998036.1A CN201810998036A CN109108070A CN 109108070 A CN109108070 A CN 109108070A CN 201810998036 A CN201810998036 A CN 201810998036A CN 109108070 A CN109108070 A CN 109108070A
- Authority
- CN
- China
- Prior art keywords
- deep cooling
- sheet metal
- metal strip
- crimping device
- working roll
- 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 127
- 239000002184 metal Substances 0.000 title claims abstract description 127
- 238000001816 cooling Methods 0.000 title claims abstract description 85
- 238000005096 rolling process Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title description 16
- 238000002788 crimping Methods 0.000 claims abstract description 54
- 238000003801 milling Methods 0.000 claims abstract description 20
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 7
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 6
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 6
- 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
- 239000007921 spray Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 9
- 239000007769 metal material Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 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
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 210000001367 artery Anatomy 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
- 230000005611 electricity Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-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
-
- 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
- B21B3/02—Rolling special iron alloys, e.g. stainless steel
-
- 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
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/221—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by cold-rolling
-
- 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
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B2045/0212—Cooling devices, e.g. using gaseous coolants using gaseous coolants
Abstract
A kind of Impulsive Current auxiliary deep cooling rolling device preparing ultrafine grain metal band, it is characterized in that, 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.The present invention also provides corresponding Impulsive Currents to assist deep cooling milling method, is suitble to prepare large-sized Ultra-fine Grained high-performance aluminium alloy band, copper alloy band, titanium alloy strip etc., and avoidable rolled piece edge is cracked, has important prospect of the application.
Description
Technical field
The invention belongs to ultrafine grain metal material rolling technical field, in particular to a kind of ultrafine grain metal band for preparing
Impulsive Current assists deep cooling rolling device 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 is also needed to rolled piece carry out table
Surface treatment.
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 auxiliary deep cooling rolling device and method be suitble to prepare large-sized Ultra-fine Grained high-performance aluminum using this method
Alloy strip steel rolled stock, copper alloy band, titanium alloy strip etc. promote material at low temperature deformation modeling due to applying electric pulse when plastic deformation
Property, Reducing distortion drag increases the processing times of material, and intensity is improved and improves with plasticity, can avoid rolled piece edge
Cracked, the high performance sheet metal strip of gained is led in structural material, aerospace material, shellproof protection, automotive light weight technology etc.
Domain has 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 rolling device preparing ultrafine grain metal band, which is characterized in that including a left side
Side deep cooling box 1 and right side deep cooling box 15 have left side metal crimping device 2 in left side deep cooling box 1, have right side in right side deep cooling box 15
Metal crimping device 16,3 both ends of sheet metal strip to be rolled are separately positioned on left side metal crimping device 2 and the curling of right side metal
On device 16, 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 under
Working roll 10, 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 13, left side conductive rollers 5 and right side conductive roller 13 act on sheet metal strip 3, apply flash electricity to it
Stream.
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 14.
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 11 for being located at 3 top of sheet metal strip and the lower right side nitrogen nozzle 12 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 11 and lower right side nitrogen nozzle 12 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 16 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 milling method, including
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 16；
Step 2: opening left side deep cooling box 1 and right side deep cooling box 15, 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 16 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 16；
Step 5: open left side metal crimping device 2 or right side metal crimping device 16, 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；
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.
The 3 width 100mm-500mm of sheet metal strip, before rolling 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 11 and lower right side nitrogen nozzle 12, 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.In conjunction with Impulsive Current and deep cooling
Two kinds of external effects realize that material grains refinement, strength and toughness improve simultaneously.The present invention is suitable for the conjunction of Ultra-fine Grained high-performance aluminum
The preparation of the materials such as gold ribbon material, copper alloy band, titanium alloy strip.
Detailed description of the invention
Fig. 1 is Impulsive Current auxiliary deep cooling rolling device structural 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；10. bottom working roll；11. right
Upside nitrogen nozzle；12. lower right side nitrogen nozzle；13. right side conductive roller；14. right side deflector roll；15. right side deep cooling box；16. right
Side metal crimping device.
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 rolling device for preparing ultrafine grain metal band, including left side
Deep cooling box 1 and right side deep cooling box 15 have left side metal crimping device 2 in left side deep cooling box 1, there is right side gold in right side deep cooling box 15
Belong to crimping device 16,3 both ends of sheet metal strip to be rolled are separately positioned on left side metal crimping device 2 and right side metal curling dress
It sets on 16, 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
Make roller 10, is respectively arranged with the left side conductive rollers of connection Impulsive Current power supply 6 in the two sides of top working roll 9 and bottom working roll 10
5 and right side conductive roller 13, the left side deflector roll 4 for driving 3 side-to-side movement of sheet metal strip and right side deflector roll 14 and for realizing
The nitrogen nozzle of 3 deep cooling temperature control of sheet metal strip in the operation of rolling.
Wherein, left side conductive rollers 5 and right side conductive roller 13 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 11
With lower right side nitrogen nozzle 12, 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 11 and lower right side nitrogen nozzle 12 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.
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, rolling before 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 16.
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 15, 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 16, 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 16, milling train.Rolling
In the process, the control of passes drafts is 15%~35%.
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%.
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 AA6061 band Impulsive Current deep cooling rolling preparation, with reference to Fig. 1, steps are as follows:
Step 1: sheet metal strip 3 is aluminium alloy AA6061 band, width 200mm, with a thickness of 1.0mm 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 16.
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 15, 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 5000A, voltage 15V.
Step 7: opening right side deep cooling box crimping device 16, 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 deep cooling box crimping device 16, milling train.It rolls
During system, passes drafts is controlled 25%.
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%.
The 7th step and the 8th step are repeated, until rolled piece is with a thickness of 0.15mm, obtains Ultra-fine Grained AA6061 aluminium alloy strips.Through
Test, tensile strength is more than 350MPa.
Embodiment 2
The rolling preparation of Ultra-fine Grained T2 copper strip Impulsive Current deep cooling, with reference to Fig. 1, steps are as follows:
Step 1: sheet metal strip 3 is T2 copper strip, width 150mm, with a thickness of 1.2mm 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 16.
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 -160 DEG C.
Step 4: opening right side deep cooling box 15, temperature is -160 DEG C.
Step 5: opening all nitrogen nozzles, the nitrogen temperature that ejection is arranged is -150 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 16, 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 16, milling train.
In the operation of rolling, passes drafts is controlled 20%.
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 20%.
The 7th step and the 8th step are repeated, until rolled piece is with a thickness of 0.1mm, Ultra-fine Grained T2 copper strip is obtained, after tested, resists
Tensile strength is more than 400MPa.
Claims (10)
1. a kind of Impulsive Current auxiliary deep cooling rolling device for preparing ultrafine grain metal band, which is characterized in that including left side
Deep cooling box (1) and right side deep cooling box (15) have left side metal crimping device (2), right side deep cooling box (15) in left side deep cooling box (1)
In have right side metal crimping device (16), sheet metal strip to be rolled (3) both ends be separately positioned on left side metal crimping device (2)
On right side metal crimping device (16), the upper and lower in the middle position of sheet metal strip (3) is respectively arranged to carry out it
The top working roll (9) and bottom working roll (10) of rolling are respectively arranged with company in the two sides of top working roll (9) and bottom working roll (10)
Connect the left side conductive rollers (5) and right side conductive roller (13) of Impulsive Current power supply (6), left side conductive rollers (5) and right side conductive roller
(13) sheet metal strip (3) are acted on, apply Impulsive Current to it.
2. preparing the Impulsive Current auxiliary deep cooling rolling device of ultrafine grain metal band, feature according to claim 1
It is, the two sides of the top working roll (9) and bottom working roll (10) are separately provided for driving sheet metal strip (3) side-to-side movement
Left side deflector roll (4) and right side deflector roll (14).
3. preparing the Impulsive Current auxiliary deep cooling rolling device of ultrafine grain metal band, feature according to claim 1
It is, the upper left side above sheet metal strip (3) is respectively arranged on the left of the top working roll (9) and bottom working roll (10)
Nitrogen nozzle (7) and the lower left side nitrogen nozzle (8) being located at below sheet metal strip (3), top working roll (9) and bottom working roll (10)
Right side be respectively arranged with upper right side nitrogen nozzle (11) above sheet metal strip (3) and be located at below sheet metal strip (3)
Lower right side nitrogen nozzle (12), the upper left side nitrogen nozzle (7), lower left side nitrogen nozzle (8), upper right side nitrogen nozzle
(11) it is acted on sheet metal strip (3) with lower right side nitrogen nozzle (12), realizes the deep cooling temperature control in the operation of rolling.
4. preparing the Impulsive Current auxiliary deep cooling rolling device of ultrafine grain metal band, feature according to claim 1
It is, the left side metal crimping device (2) and right side metal crimping device (16) 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.
5. a kind of Impulsive Current auxiliary deep cooling milling method for preparing ultrafine grain metal band, which is characterized in that including as follows
Step:
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 (16)；
Step 2: opening left side deep cooling box (1) and right side deep cooling box (15), 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 (16) 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 (16)；
Step 5: opening left side metal crimping device (2) or right side metal crimping device (16), 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)；
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 milling method of ultrafine grain metal band, feature according to claim 5
It is, the sheet metal strip (3) is aluminium alloy strips, copper alloy band or titanium alloy strip.
7. deep cooling milling method is assisted according to the Impulsive Current for preparing ultrafine grain metal band of claim 5 or 6, it is special
Sign is, 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 milling method of ultrafine grain metal band, feature according to claim 5
It is, the third step, the size of current of Impulsive Current power supply (6) is 3000A~8000A, voltage 12V-200V.
9. preparing the Impulsive Current auxiliary deep cooling milling method of ultrafine grain metal band, feature according to claim 5
It is, 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 5
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 (11) and lower right side nitrogen nozzle (12), 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 |
|---|---|---|---|
| CN201810998036.1A CN109108070A (en) | 2018-08-29 | 2018-08-29 | A kind of Impulsive Current auxiliary deep cooling rolling device and method preparing ultrafine grain metal band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810998036.1A CN109108070A (en) | 2018-08-29 | 2018-08-29 | A kind of Impulsive Current auxiliary deep cooling rolling device and method preparing ultrafine grain metal band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109108070A true CN109108070A (en) | 2019-01-01 |
Family
ID=64861526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810998036.1A Pending CN109108070A (en) | 2018-08-29 | 2018-08-29 | A kind of Impulsive Current auxiliary deep cooling rolling device and method preparing ultrafine grain metal band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109108070A (en) |
Cited By (8)
| 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 |
| 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 |
| 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 |
| CN110788136A (en) * | 2019-10-10 | 2020-02-14 | 太原理工大学 | Method for preparing titanium steel composite plate through pulse current auxiliary hot rolling |
| CN111250540A (en) * | 2020-01-22 | 2020-06-09 | 武汉科技大学 | Silicon steel cold rolling process based on direct current assistance |
| 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 |
| CN112795797A (en) * | 2020-12-28 | 2021-05-14 | 中南大学 | Method for preparing high-strength and high-toughness aluminum-based high-entropy alloy composite strip |
| CN114522988A (en) * | 2022-01-29 | 2022-05-24 | 太原理工大学 | Roller conveying device and method applying current and adjustable in space for plate strip rolling |
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 CN201810998036.1A patent/CN109108070A/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 (9)
| 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 |
| 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 |
| 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 |
| CN110788136A (en) * | 2019-10-10 | 2020-02-14 | 太原理工大学 | Method for preparing titanium steel composite plate through pulse current auxiliary hot rolling |
| CN111250540A (en) * | 2020-01-22 | 2020-06-09 | 武汉科技大学 | Silicon steel cold rolling process based on direct current assistance |
| 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 |
| CN112795797A (en) * | 2020-12-28 | 2021-05-14 | 中南大学 | Method for preparing high-strength and high-toughness aluminum-based high-entropy alloy composite strip |
| CN114522988A (en) * | 2022-01-29 | 2022-05-24 | 太原理工大学 | Roller conveying device and method applying current and adjustable in space for plate strip rolling |
| CN114522988B (en) * | 2022-01-29 | 2023-12-29 | 太原理工大学 | Roller conveying device and method for applying current and adjusting distance in plate and strip rolling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| 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 | |
| CN109174968A (en) | A kind of Impulsive Current auxiliary deep cooling friction speed asymmetrical rolling apparatus and method preparing ultrafine grain metal band | |
| CN106676439B (en) | A kind of deep cooling top layer continuous rolling preparation method of gradient band | |
| CN108296286A (en) | A kind of continuous reversible deep cooling rolling mill practice preparing high-performing car aluminium alloy strips and equipment | |
| CN111054748A (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 | |
| CN107931335A (en) | A kind of changing rig and the quick-replaceable working roll method based on it | |
| CN211439451U (en) | Rust removal device for galvanized angle steel | |
| CN109201737B (en) | Preparation method of gradient structure material with superfine crystal core and coarse crystal surface | |
| TW200408466A (en) | Method and device for descaling and/or cleaning a metal casting | |
| CN101972798B (en) | Roll center heating type roll bending forming method and device thereof | |
| CN207577122U (en) | The preparation facilities of the compound ingot bar of penetration type silver-bearing copper | |
| CN212469329U (en) | Rolling machine convenient to take off material clearance | |
| CN108998634B (en) | Production device for ultrahigh-strength steel plate | |
| CN109201739A (en) | A kind of high-performance superfine crystalline substance copper/aluminium/copper composite strip continuously hot rolling-deep cooling Rolling compund preparation method | |
| CN204135063U (en) | A kind of steel billet shearing outlet device | |
| CN111250540A (en) | Silicon steel cold rolling process based on direct current assistance | |
| CN209238683U (en) | A kind of symmetric form four-roller rod-rolling mill | |
| CN208261960U (en) | Automatic metal coiled strip slitting machine | |
| CN206040808U (en) | Take corona unit's battery paper tinsel cutting machine | |
| CN205312710U (en) | A decoiler for inspection of hot rolling steel band | |
| CN210112466U (en) | Power supply control box | |
| DE212019000158U1 (en) | A transfer device for die steel processing equipment | |
| CN102527858B (en) | Tape splicing technology for oriented silicon steel tape with insulating magnesium silicate substrate generated on surface |
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: 20190101 |
|
| RJ01 | Rejection of invention patent application after publication |