CN106077092B - The device of the low electric heating Pulse Electric Current with High Density assistant metal operation of rolling - Google Patents
The device of the low electric heating Pulse Electric Current with High Density assistant metal operation of rolling Download PDFInfo
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- CN106077092B CN106077092B CN201610463209.0A CN201610463209A CN106077092B CN 106077092 B CN106077092 B CN 106077092B CN 201610463209 A CN201610463209 A CN 201610463209A CN 106077092 B CN106077092 B CN 106077092B
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- Prior art keywords
- roll
- screw
- rolling
- topping
- conductive sleeve
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The device of the low electric heating Pulse Electric Current with High Density assistant metal operation of rolling, mainly including topping roll, conductive sleeve, screw, insulation sleeve, terminal plate, the pulse power, conductor wire, rolled piece, bottom roll, return wire and limiting plate.Present invention, avoiding big and to roll rolling process the interference of external power supply loop resistance.Pulse current loop part is few, and resistance is small, under equal power and rolling condition, and the plastically deforming area of rolled piece can obtain larger current density, so the pure electro plasticity rolling of metal can be realized.Simple and practical, energy consumption is low, and suitable for requiring to complete the difficult deformable metal of the operation of rolling at normal temperatures.
Description
Technical field
The present invention relates to the device of the low electric heating Pulse Electric Current with High Density assistant metal operation of rolling.
Background technology
In the electro plasticity operation of rolling of metal, highdensity pulse current is imported into the plastic deformation of metal rolled piece
Area, existing experimental studies results show, if expecting obvious electro plasticity effect, current density must reach certain threshold
Value, and current density is bigger, electro plasticity effect is more obvious, and usual current density value will reach 1000A/mm2More than.At present, it is electric
Plasticity rolling is the outside that the pulse power is arranged on to milling train, and then electric current is incorporated into rolled piece with wire, such as authorizes public
Accuse and number be:CN202438539U, it is entitled:Described in the Chinese patent of " electro plasticity process equipment " " the first roll shaft and
Second roll shaft is connected with the both positive and negative polarity of the pulse power respectively ", electric current is incorporated into rolled piece by the spindle nose of roll by the body of roll;For another example
Authorization Notice No. is:CN102172620A, it is entitled:" Electroplastic is combined rolling difficult processing metal with warm plasticity
Method and system " Chinese patent described in " described two Electical connectors are respectively arranged at before the top and bottom rolls
Afterwards ", set Electical connector that electric current is incorporated into flow of metal area by rolled piece on the rolled piece before rolling and after rolling;Also or as authorized
Notification number is:CN102059250A, it is entitled:The Chinese patent of " the electro plasticity duo mill of low temperature liquid nitrogen cooling medium "
Described " negative pole of the pulse power passes through the train wheel bridge of cable connection feed clamp, positive pole connection roll ", by roll and rolls
Preceding rolled piece induces current into the plastically deforming area of metal.
Power-on method mentioned in the above patent is not only complicated, and is connected in pulse current loop
Substantial amounts of part, causes loop resistance big, current strength is small, significantly reduces the pure electro plasticity effect of metal, now can only
Electric heating is improved by increasing the method for pulsewidth and frequency, to reduce plastic deformation, but this method is not suitable for requiring in normal temperature
The lower difficult deformable metal for completing the operation of rolling.
The content of the invention
It is an object of the invention to provide a kind of device of the low electric heating Pulse Electric Current with High Density assistant metal operation of rolling, its pin
Difficult deformable metal to requiring to complete the operation of rolling at normal temperatures, it is proposed that a kind of main pure electro plasticity effect using metal come
Metal deformation resistance is reduced, the device and method of plastic deformation is improved.
The invention mainly comprises topping roll, conductive sleeve, screw, insulation sleeve, terminal plate, the pulse power, conductor wire, rolled piece,
Bottom roll, return wire and limiting plate.
Wherein, roll is hollow shaft member, in the body surface spray insulation coating of roll.The left and right sides difference of topping roll
Provided with annular U grooves, unthreaded hole is provided with the bottom of annular U grooves.One group of conductive sleeve is embedded with the inside of each annular U grooves, it is conductive
Cover for semicircular arc.The inner surface of every group of conductive sleeve is equipped with screwed hole, the inner surface screwed hole of every group of conductive sleeve
Quantity is corresponding with the quantity of the bottom unthreaded hole of each annular U grooves.Screw is inside topping roll by the light of annular U trench bottoms
Hole, is screwed in the screwed hole of conductive sleeve.Screw is provided with insulation sleeve and terminal plate with topping roll joint, and screw and topping roll are logical
Cross insulation sleeve separation.Topping roll is identical with the structure of bottom roll.In the outside of topping roll and the conductive sleeve of bottom roll, it is all provided with limited
Position plate, places rolled piece in limiting plate.Return wire is provided with the inside of bottom roll, the two ends of return wire are respectively with being located at down
The terminal plate of roll is connected, and electric current is imported into bottom roll right screw by bottom roll left screw.
The pulse power is provided with the inside of topping roll, it is left that pulse current flows through topping roll by conductor wire by the positive pole of power supply
Side terminal plate, topping roll left screw, topping roll left side conductive sleeve, left side rolled piece, bottom roll left side conductive sleeve, bottom roll left side
Terminal plate, return wire, bottom roll right side terminal plate, bottom roll right screw, bottom roll right side conductive on the left of screw, bottom roll
Set, right side rolled piece, topping roll right side conductive set, topping roll right screw, on the right side of topping roll terminal plate and the pulse power negative pole
Form current loop.
In the use of the present invention, being first depending on the pulse electricity of rolled piece physical attribute and rolling mill practice setting pulse power output
Parameter is flowed, then starts milling train, two identical rolled pieces are bitten simultaneously in the both sides of roll, starts pair rolling process.Now
Unbalanced pulse power supply, pulse current is directed to the plastically deforming area of rolled piece via screw, conductive sleeve, completes electro plasticity and rolled
Journey.
Compared with prior art, the beneficial effects of the invention are as follows:Due to the pulse power is arranged in roll in the present invention
Pulse current, the both sides up and down of metal rolled piece plastically deforming area are directly imported into by the conductive sleeve being fixed on roll by portion,
Avoid that external power supply loop resistance is big and the interference to roll rolling process.Pulse current loop part of the present invention is few, resistance
Small, under equal power and rolling condition, the plastically deforming area of rolled piece can obtain larger current density, so can
Realize the pure electro plasticity rolling of metal.Simple and practical, energy consumption is low, and suitable for requiring to complete the operation of rolling at normal temperatures
Difficult deformable metal.
Brief description of the drawings
Fig. 1 is the roll schematic appearance of the present invention;
Fig. 2 is the conductive sleeve schematic appearance of the present invention;
Fig. 3 is the electro plasticity rolling equipment schematic appearance of the present invention;
Fig. 4 is that the pulse current loop of the present invention and the embodiment that pulse current is applied into rolled piece plastically deforming area are illustrated
Figure.
In accompanying drawing, 1- topping rolls, 2- conductive sleeves, 3- screws, 4- insulation sleeves, 5- terminal plates, the 6- pulse powers, 7- is conductive
Line, 8- rolled pieces, 9- bottom rolls, 10- return wires, 11- limiting plates.
Embodiment
In Fig. 1 to Fig. 4 simplified schematic diagram of the invention, roll is hollow shaft member, exhausted in the body surface spraying of roll
Edge coating.Topping roll 1 is respectively arranged on the left side and the right side annular U grooves, and unthreaded hole is provided with the bottoms of annular U grooves.In each annular U grooves
Inside be embedded with one group of conductive sleeve 2, conductive sleeve is semicircular arc.The inner surface of every group of conductive sleeve is equipped with screw thread
Hole, the quantity of the inner surface screwed hole of every group of conductive sleeve is corresponding with the quantity of the bottom unthreaded hole of each annular U grooves.Screw 3 exists
By the unthreaded hole of annular U trench bottoms inside topping roll, screw in the screwed hole of conductive sleeve.Screw is provided with topping roll joint
Insulation sleeve 4 and terminal plate 5, screw and topping roll are separated by insulation sleeve.Topping roll is identical with the structure of bottom roll 9.Rolled upper
The outside of the conductive sleeve of roller and bottom roll, is equipped with limiting plate 11, and rolled piece 8 is placed in limiting plate.Set in the inside of bottom roll
There is return wire 10, the two ends of return wire are connected with being located at the terminal plate of bottom roll respectively, by electric current on the left of bottom roll
Screw imported into bottom roll right screw.
The pulse power 6 is provided with the inside of topping roll, pulse current flows through topping roll by conductor wire 7 by the positive pole of power supply
Left side terminal plate, topping roll left screw, topping roll left side conductive sleeve, left side rolled piece, bottom roll left side conductive sleeve, bottom roll are left
Terminal plate, return wire, bottom roll right side terminal plate, bottom roll right screw, bottom roll right side are led on the left of side screw, bottom roll
Electric set, right side rolled piece, topping roll right side conductive set, topping roll right screw, terminal plate and the pulse power bears on the right side of topping roll
Pole forms current loop.
Claims (1)
1. the device of the low electric heating Pulse Electric Current with High Density assistant metal operation of rolling, mainly including topping roll, conductive sleeve, screw,
Insulation sleeve, terminal plate, the pulse power, conductor wire, rolled piece, bottom roll, return wire and limiting plate, it is characterised in that:Roll is
Hollow shaft member, in the body surface spray insulation coating of roll, topping roll is respectively arranged on the left side and the right side annular U grooves, in annular U
The bottom of groove is provided with unthreaded hole, and one group of conductive sleeve is embedded with the inside of each annular U grooves, and conductive sleeve is semicircular arc,
The inner surface of every group of conductive sleeve is equipped with screwed hole, the quantity of the inner surface screwed hole of every group of conductive sleeve and each annular U grooves
The quantity of bottom unthreaded hole is corresponding, and screw, by the unthreaded holes of annular U trench bottoms, screws the screw thread in conductive sleeve inside topping roll
In hole, screw and topping roll joint are provided with insulation sleeve and terminal plate, and screw and topping roll are separated by insulation sleeve, topping roll and
The structure of bottom roll is identical, in the outside of topping roll and the conductive sleeve of bottom roll, is equipped with limiting plate, places and rolls in limiting plate
Part, return wire is provided with the inside of bottom roll, and the two ends of return wire are connected with being located at the terminal plate of bottom roll respectively, will
Electric current imported into bottom roll right screw by bottom roll left screw, and the pulse power, pulse current are provided with the inside of topping roll
Terminal plate on the left of topping roll, topping roll left screw, topping roll left side conductive sleeve, a left side are flowed through by the positive pole of power supply by conductor wire
Conductive sleeve, bottom roll left screw, bottom roll left side terminal plate, return wire, bottom roll right side connect on the left of side rolled piece, bottom roll
Line plate, bottom roll right screw, bottom roll right side conductive set, right side rolled piece, topping roll right side conductive set, topping roll right side spiral shell
The negative pole formation current loop of terminal plate and the pulse power on the right side of nail, topping roll.
Priority Applications (1)
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CN201610463209.0A CN106077092B (en) | 2016-06-24 | 2016-06-24 | The device of the low electric heating Pulse Electric Current with High Density assistant metal operation of rolling |
Applications Claiming Priority (1)
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CN201610463209.0A CN106077092B (en) | 2016-06-24 | 2016-06-24 | The device of the low electric heating Pulse Electric Current with High Density assistant metal operation of rolling |
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CN106077092A CN106077092A (en) | 2016-11-09 |
CN106077092B true CN106077092B (en) | 2017-10-20 |
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Families Citing this family (6)
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CN106914489B (en) * | 2017-04-17 | 2018-07-13 | 燕山大学 | A kind of rolling device and method preparing function-graded material |
CN107742030B (en) * | 2017-10-23 | 2020-05-12 | 燕山大学 | Simulation method for intermediate frequency heating and pulse current application of TP2 internal thread copper pipe |
CN108339852A (en) * | 2018-02-10 | 2018-07-31 | 太原理工大学 | A kind of milling method applying pulse current on roll |
CN109433823B (en) * | 2018-11-08 | 2020-07-28 | 燕山大学 | Rolling device and method for preparing functionally graded material based on Hall effect |
CN112238146B (en) * | 2020-09-25 | 2022-02-25 | 燕山大学 | Device and method for rolling thick metal plate strip with assistance of pulse current |
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 |
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JPS57138536A (en) * | 1981-02-20 | 1982-08-26 | Nippon Kokan Kk <Nkk> | Method of machining roll-shaped material with electric discharge |
KR100418530B1 (en) * | 2003-05-23 | 2004-02-14 | 주식회사 경인특수금속 | Electric Heating Type Rolling Device |
CN101817071A (en) * | 2009-10-30 | 2010-09-01 | 兰州理工大学 | Electric pulse casting and rolling method of semi-solid alloy |
CN102172620A (en) * | 2011-02-09 | 2011-09-07 | 清华大学深圳研究生院 | Method and system for rolling difficult-to-machine metal material by combining electro-plasticity with temperature plasticity |
CN203108932U (en) * | 2013-01-29 | 2013-08-07 | 清华大学深圳研究生院 | Metal electricity-plasticity asymmetrical rolling system |
CN103846278B (en) * | 2014-01-14 | 2015-09-16 | 燕山大学 | The isometrical rolling milling train of a kind of electro plasticity |
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Effective date of registration: 20200714 Address after: 215427, Jiangsu City, Suzhou province Taicang Jing Jing Town Yongle Village Patentee after: JIANGSU RUNFU MECHANICAL ROLL MANUFACTURING Co.,Ltd. Address before: Hebei Street West Harbor area, 066004 Hebei city of Qinhuangdao province No. 438 Patentee before: Yanshan University |
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