CN102922149A - Electromagnetic stirring device - Google Patents
Electromagnetic stirring device Download PDFInfo
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- CN102922149A CN102922149A CN2012104738561A CN201210473856A CN102922149A CN 102922149 A CN102922149 A CN 102922149A CN 2012104738561 A CN2012104738561 A CN 2012104738561A CN 201210473856 A CN201210473856 A CN 201210473856A CN 102922149 A CN102922149 A CN 102922149A
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Abstract
The invention relates to an electromagnetic stirring device, wherein a transmission shaft is fixed on a chassis of an operating platform, the chassis of the operating platform is positioned in a bottom plate, a supporting seat is fixed on the bottom plate, a second synchronous belt wheel is fixed on the transmission shaft and is connected with a first synchronous belt wheel by a synchronous belt, the first synchronous belt wheel is fixed on a stepping motor, a single-shaft controller is connected on the stepping motor, the supporting frame is fixed at one side of the bottom plate and is used for supporting a protective cover, the protective cover is covered on the upper end of an electromagnetic box, the electromagnetic box is fixed on a rotary disc, the rotary disc is fixed on the transmission shaft, a protective shell is covered on the first synchronous belt wheel, a supporting rod is fixed at the center of the transmission shaft, the operating platform is fixed on the supporting rod, a base plate is fixed on the operating platform, and a laser powder-feeding head is positioned right above the base plate. The electromagnetic stirring device is compact in structure and stable in performance, meets the space requirement of test installation, can generate an approximately-uniform magnetic field with adjustable intensity and rate in the working area and can realize the stirring function well.
Description
Technical field: the present invention relates to a kind of noncontact agitating device of metal bath, especially a kind of electromagnetic mixing apparatus belongs to materials science field.
Background technology: intensity height, corrosion resistance are good because having, the heat resistance high is widely used in the every field such as Aero-Space, weapon, nuclear energy, chemical industry, medical science for titanium alloy.The processing performance of titanium alloy is poor, and the machining difficulty in hot-working, be very easy to absorb the impurity such as hydrogen-oxygen nitrogen carbon, and wear resistence is poor, complex manufacturing.
In the titanium alloy component manufacture process, often a large amount of processing errors can occur, or part under arms with in the use procedure inefficacies such as crackle, burn into wearing and tearing appears.The titanium alloy important spare part is worth at least tens thousand of units, and is hundreds thousand of at most, even unit up to a million.In case scrap again production and processing, to producing and the scientific research progress can consist of and has a strong impact on, cause huge economic loss.Therefore, efficient, the high performance recovery technique of titanium alloy parts is the key issue of demanding urgently.Utilize the laser fast forming recovery technique, for the geometrical defect in the titanium alloy main force support structure spare process, or the fault that occurs under arms, repair design principle by intensity, rigidity, life-span or the function etc. of appointment, realize the quick reparation of member.Can recover to be worth expensive overproof titanium alloy product, reduce huge economic loss, can guarantee simultaneously to produce and the lead time, have great using value, its economic benefit is very remarkable.The basic principle of this technology is: utilize high energy laser beam at metal surface irradiation, simultaneously send into metal dust to laser molten pool, by rapid fusing, expansion with solidify rapidly, forming with it in substrate surface is the filling sedimentary deposit of metallurgical binding.Said process fills up given two-dimensional shapes according to fill path pointwise on part position to be repaired of setting, repeats this process and successively piles up and finish part restore.
In titanium alloy laser deposition repair process, pore, crackle, the microscopic structure skewness, crystallization is not obvious, and crystallite dimension is thick to be the major reason that affects repairing quality, in order to improve repairing effect, improve repairing quality, usually by adding some specific alloy element or oxide, or suppress or improve above defective by optimizing the measures such as titanium alloy laser deposition renovation technique, but above measure is to improving achieving no breakthrough property of repair layer quality progress.In order to improve laser repairing layer internal soundness, an important thinking is that hard phase evenly distributes in managing to make repair layer, and electromagnetic agitating technology can well be realized this thinking.The rotating excitation field that agitator produces acts on the molten metal that dissolves, produce therein induced-current, the magnetic field interaction that this electric current produces with agitator again and then produce electromagnetic force, electromagnetic force promotes the molten metal rotation, can impel separating out of bubble impurity in the metallic solution, reduce the thermograde of molten metal, make in the molten bath species distribution more even.Because the molten bath that laser deposition is repaired is little, the molten bath melting time is short, the electromagnetism intensity that needs is stronger, common mixing plant is difficult to meet the demands, in addition common alternating current formula magnetic stirrer apparatus expensive, complex structure, it is larger to take up room, and this has all limited the application in test of alternating current formula magnetic stirrer.
Summary of the invention: for above-mentioned the deficiencies in the prior art, the invention provides a kind of compact conformation, with low cost, the permanent-magnet electromagnetic agitating device of stable performance.
For achieving the above object, the technical solution used in the present invention is: electromagnetic mixing apparatus comprises stepper motor, base plate; the first synchronous pulley, protecting sheathing, rotating disk; magnetic box, workbench, substrate; laser feeding head, support bar, power transmission shaft; protective cover, support, bearing; the workbench chassis, the second synchronous pulley, Timing Belt and uniaxiality controller.Power transmission shaft is fixed on the workbench chassis.The workbench chassis is in the base plate.Bearing is fixed on the base plate.The second synchronous pulley is fixed on the power transmission shaft, and is connected with the first synchronous pulley by Timing Belt.The first synchronous pulley is fixed on the stepper motor.Connect uniaxiality controller on the stepper motor.Support is fixed on a side of base plate, and is supporting protective cover.Protective cover covers on the upper end of magnetic box.Magnetic box is fixed on the rotating disk.Rotating disk is fixed on the power transmission shaft.Protecting sheathing covers on the first synchronous pulley.Support bar is fixed on the center of power transmission shaft.Workbench is fixed on the support bar.Substrate is fixed on the workbench.Laser feeding head be in substrate directly over.
Compact conformation of the present invention, the space requirement that test is installed is satisfied in stable performance, and can produce in the working region all adjustable approximate uniform magnetic fields of intensity and speed, can well bring into play stirring effectiveness, improves problem and the defective mentioned in the technical background; Can make the heat-affected zone more even, increase its sphere of action and permeate to substrate; Can significantly improve the repair layer microstructure, it is more evenly distributed, crystal grain thinning, and impel repair layer to be decomposed gradually by martensite α ' to change secondaryαphase into; Can well suppress the pore of titanium alloy powder laser repairing layer and make its granular; Can improve to a certain extent the microhardness of repair layer.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is distribution of magnets figure of the present invention.
Fig. 3 is the structural representation of rotating disk.
Fig. 4 is the A-A cutaway view of Fig. 3.
The specific embodiment:
Shown in Fig. 1-4: electromagnetic mixing apparatus comprises stepper motor 1, base plate 17; the first synchronous pulley 3, protecting sheathing 4, rotating disk 5; magnetic box 6, workbench 7, substrate 8; laser feeding head 9, support bar 10, power transmission shaft 11; protective cover 12, support 13, bearing 14; workbench chassis 15, the second synchronous pulleys 16, Timing Belt 18 and uniaxiality controller 19.Power transmission shaft 11 is fixed on the workbench chassis 15.Workbench chassis 15 is in the base plate 17.Bearing 14 is fixed on the base plate 17.The second synchronous pulley 16 is fixed on the power transmission shaft 11, and is connected with the first synchronous pulley 3 by Timing Belt 18.The first synchronous pulley 3 is fixed on the stepper motor 1.Connect uniaxiality controller 19 on the stepper motor 1.Support 13 is fixed on a side of base plate 17, and is supporting protective cover 12.Protective cover 12 covers on the upper end of magnetic box 6.Magnetic box 6 is fixed on the rotating disk 5.Rotating disk 5 is fixed on the power transmission shaft 11.Protecting sheathing 4 covers on the first synchronous pulley 3.Support bar 10 is fixed on the center of power transmission shaft 11.Workbench 7 is fixed on the support bar 10.Substrate 8 is fixed on the workbench 7.Laser feeding head 9 be in substrate 8 directly over.
The titanium alloy laser repairing is finished at substrate, substrate is fixed on the workbench, workbench is positioned at the center of rotating excitation field, and size and the slewing rate of rotating excitation field just can be adjusted in the rotating speed and the position of magnetic box on rotating disk that change rotating disk, thereby obtain different mixing effects.The magnetic field intensity of electromagnetic mixing apparatus is that 0-100mT is adjustable, and magnetic field rotating speed is that 0-2000rmp is adjustable, and can produce in the central area approximate uniform magnetic field.Just can realize metallic solution is stirred with different stirring intensities and stir speed (S.S.) with motor speed by changing the position of magnetic box on rotating disk, and then obtain different laser repairing effects.
The structural scheme of electromagnetic mixing apparatus mainly is by motor speed control device, transmission mechanism, and the magnet rotating disk mechanism, table mechanism, shielded closure mechanism, base plate six parts form, wherein:
Motor speed control device is comprised of stepper motor 1 and uniaxiality controller 19, and electric machine speed regulation is real by programming by uniaxiality controller 19, can realize well the adjusting of motor speed;
Transmission mechanism is comprised of the first synchronous pulley 3, the second synchronous pulley 16, Timing Belt 18 and Hollow Transmission Shafts 11, and synchronous pulley guarantees the accuracy of transmission, and hollow shaft is used for connecting rotating disk and guaranteeing that the rotation of rotating disk and workbench do not interfere.
The magnet rotating disk mechanism is by magnetic box 6, magnet, rotating disk 5 forms, rotating disk is aluminum alloy materials, have guide-track groove on it, magnet is packed in the magnetic box 6, and transmission mechanism drives dial rotation, thereby form rotating excitation field in the space, adjust the size of center field intensity with the distance between the magnet of adjusting two correspondences thereby magnetic box can slide in guide-track groove.
Table mechanism is by workbench chassis 15, and support bar 10 and workbench 7 three parts form.Workbench can be disassembled, and does not interfere with power transmission shaft and rotating disk.
Shielded closure mechanism is by protective cover 12, and support 13 forms, and pole is installed on the base plate 17, and can disassemble, the convenient installation.Protective cover is mainly used in reflector laser, and the Protection platform does not collide with rotary magnet and avoids causing flowing of protective gas because magnet is rotated in working region.
Base plate: form by two, be used for fixing respectively stepper motor 1 and workbench chassis 15, base plate is detachable, is convenient for changing motor and synchronous pulley.
Claims (4)
1. electromagnetic mixing apparatus is characterized in that: comprise stepper motor, base plate, the first synchronous pulley, protecting sheathing, rotating disk, magnetic box, workbench, substrate, laser feeding head, support bar, power transmission shaft, protective cover, support, bearing, workbench chassis, the second synchronous pulley, Timing Belt and uniaxiality controller; Power transmission shaft is fixed on the workbench chassis; the workbench chassis is in the base plate; bearing is fixed on the base plate; the second synchronous pulley is fixed on the power transmission shaft; and be connected with the first synchronous pulley by Timing Belt, the first synchronous pulley is fixed on the stepper motor, connects uniaxiality controller on the stepper motor; support is fixed on a side of base plate; and supporting protective cover, and protective cover covers on the upper end of magnetic box, and magnetic box is fixed on the rotating disk; rotating disk is fixed on the power transmission shaft; protecting sheathing covers on the first synchronous pulley, and support bar is fixed on the center of power transmission shaft, and workbench is fixed on the support bar; substrate is fixed on the workbench, laser feeding head be in substrate directly over.
2. electromagnetic mixing apparatus as claimed in claim 1, it is characterized in that: described rotating disk is aluminum alloy materials, has guide-track groove on it, magnetic box slides in guide-track groove.
3. electromagnetic mixing apparatus as claimed in claim 1 is characterized in that: in the described magnetic box magnet is arranged.
4. electromagnetic mixing apparatus as claimed in claim 1, it is characterized in that: described base plate forms by two, and detachable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104738561A CN102922149A (en) | 2012-11-21 | 2012-11-21 | Electromagnetic stirring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104738561A CN102922149A (en) | 2012-11-21 | 2012-11-21 | Electromagnetic stirring device |
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| CN102922149A true CN102922149A (en) | 2013-02-13 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273201A (en) * | 2013-02-27 | 2013-09-04 | 沈阳航空航天大学 | Permanent-magnet electromagnetic stirring device for titanium alloy laser repair |
| CN103817430A (en) * | 2014-02-13 | 2014-05-28 | 温州大学 | Electromagnetically-assisted laser drilling method and device |
| CN103624259B (en) * | 2013-12-06 | 2015-11-04 | 沈阳航空航天大学 | Based on metal parts laser deposition restorative procedure and the device of the regulation and control of preset gradient temperature field |
| TWI623351B (en) * | 2016-11-21 | 2018-05-11 | 牟敦剛 | Magnetic coupled assembly and magnetic coupled stirrer device |
| CN108983120A (en) * | 2018-05-30 | 2018-12-11 | 东北大学 | A kind of medical instrument with even magnetic field that direction is controllable |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273201A (en) * | 2013-02-27 | 2013-09-04 | 沈阳航空航天大学 | Permanent-magnet electromagnetic stirring device for titanium alloy laser repair |
| CN103624259B (en) * | 2013-12-06 | 2015-11-04 | 沈阳航空航天大学 | Based on metal parts laser deposition restorative procedure and the device of the regulation and control of preset gradient temperature field |
| CN103817430A (en) * | 2014-02-13 | 2014-05-28 | 温州大学 | Electromagnetically-assisted laser drilling method and device |
| CN103817430B (en) * | 2014-02-13 | 2015-08-12 | 温州大学 | A kind of electromagnetism auxiliary laser drilling method and device |
| TWI623351B (en) * | 2016-11-21 | 2018-05-11 | 牟敦剛 | Magnetic coupled assembly and magnetic coupled stirrer device |
| US10695730B2 (en) | 2016-11-21 | 2020-06-30 | Duen-Gang Mou | Magnetic coupling assembly for coupling stir bar in magnetic stirrer mixer and magnetic stirrer mixer using the same |
| CN108983120A (en) * | 2018-05-30 | 2018-12-11 | 东北大学 | A kind of medical instrument with even magnetic field that direction is controllable |
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Application publication date: 20130213 |