CN102873418B - Circulating filtration system for electrochemical machining electrolyte and control method thereof - Google Patents
Circulating filtration system for electrochemical machining electrolyte and control method thereof Download PDFInfo
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- CN102873418B CN102873418B CN201210393387.2A CN201210393387A CN102873418B CN 102873418 B CN102873418 B CN 102873418B CN 201210393387 A CN201210393387 A CN 201210393387A CN 102873418 B CN102873418 B CN 102873418B
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Abstract
The invention discloses a circulating filtration system for electrochemical machining electrolyte and a control method thereof, and belongs to the technical field of electrochemical machining. The circulating filtration system for the electrochemical machining electrolyte comprises an electrolyte tank, an electrolyte circulating device, an electrolyte filtering device, an electrolyte filtering and monitoring device and an electrolyte component control device. According to the circulating filtration system for the electrochemical machining electrolyte, which is disclosed by the invention, two loops are connected in parallel to filter the electrolyte, the electrolyte input to a processing area has a high cleanliness; the electrolyte filtering and monitoring device is adopted to monitor a secondary filter and a plate-and-frame filter press in real time; in an electrolysis processing process, the circulating filtration system for the electrolyte has a high reliability; the electrolyte component control device is used for monitoring the pH (potential of hydrogen) value and the conductivity of the electrolyte in real time; and an industrial personal computer controls a liquid regulation tank to correspond to the on and off of a solenoid valve so as to guarantee the stability of the pH value and the conductivity of the electrolyte in the electrolysis processing process.
Description
technical field
The present invention relates to a kind of Electrolyzed Processing circulate electrolyte filtration system and electrolyte filtering method for supervising, electrolyte component control method, belong to technical field of electrolysis processing.
Background technology
In electrochemical machining process, in workpiece to be machined corrosion moulding, be necessarily accompanied by a large amount of electrolysate-electrolytic slimes, the volume ratio of electrolytic slime is removed metal volume and is wanted large 100-200 times conventionally, its composition is mainly precipitation of hydroxide, in electrolyte, exists with cotton-shaped form.If workpiece to be machined is carbon containing metal material, because carbon is the poorest element of activity in electrochemical reaction, in electrochemical machining process, form undissolved particulate, in electrolytic slime, also have graphite particulate.In high-carbon steel, carbide is only with Fe
3c form exists, Fe
3electrode potential and the carbon of C phase are close, therefore in high-carbon steel, contain 1% carbon, will have 15% Fe in electrolytic slime
3c is soluble particles not.
In electrochemical machining process, electrolyte act as: form with anode and negative electrode the electrochemical system that carries out electrochemical reaction, realize desired electrochemical machining process; Get rid of electrolysate, control polarization, make anodic solution can be normally, carry out continuously; Take away in time the heat producing in electrochemical machining process.Circulate electrolyte filtration system is carried out filtration treatment in time to the electrolyte of cathode and anode machining area output, and constantly to the swiftly flowing clean electrolyte of machining area input, carries out to guarantee that electrochemical machining process is stable.If along with electrochemical machining process carries out, circulate electrolyte filtration system filters degradation, will cause: the device generation electrolytic slime cloggings such as (1) electrolyte circulation system middle filtrator, the flow of electrolyte of input machining area declines, (2) in the electrolyte of input processing district, contain a large amount of electrolytic slimes, machining area electrolyte heat extraction degradation, machining area electrolysate is piled up and cannot be got rid of in time.Therefore, circulate electrolyte filtration system can not be undertaken directly affecting the stable of electrochemical machining process in stable operation, even can produce short circuit phenomenon, makes cathode and anode serious burn.
Current electrolysis liquid circulated filter system filter method mainly comprises: multiple electrolytic bath cascade filtrations, and the plate and frame filter press of connecting between electrolytic bath, cell liquor pump inlet arranges coarse filter, and fine filter etc. is set in pipeline.Electrolytic bath cascade filtration cuts off electrolytic slime by the dividing plate between electrolytic bath, electrolyte is circulated by the logical liquid bath in dividing plate middle part, to guarantee the clean of electrolytic bath that be connected with cell liquor pump, the method filter effect is general, conventionally need coarse filter is set and fine filter is set in pipeline at cell liquor pump inlet; The plate and frame filter press of connecting between electrolytic bath filters, can effectively reduce the quantity of electrolytic bath, and filter effect is also better, but because plate and frame filter press electrolytic slime is piled up very fast, need frequent filter plate, filter frame to plate and frame filter press to clean, and plate and frame filter press generation electrolytic slime is piled up in electrochemical machining process, by the flow of impact input machining area electrolyte, and then electrochemical machining process stability is exerted an influence.The main cell liquor pump that relies on of current electrolysis liquid circulation, pressure regulator valve, overflow valve and electrolyte pipeline are realized, cell liquor pump constantly detaches electrolyte Zhiyin, Anode machining region from electrolytic bath, regulates pressure regulator valve and overflow valve openings of sizes to control input machining area flow of electrolyte and pressure.
The operation of circulate electrolyte filtration system simultaneously, need to monitor electrolyte filtering system filtration condition, to ensure that circulate electrolyte filtration system is long-term, stable operation, especially in electrochemical machining process, more to guarantee the stable operation of circulate electrolyte filtration system, to ensure the stable operation of electrochemical machining process.At present, in electrochemical machining process, the automaticity of electrolyte filtering monitoring is also lower, a lot of occasions also need technologist to judge electrolyte filtering state, be badly in need of electrolyte filtering system and Electrolyzed Processing system to carry out integrated control, to improve stability and the controllability of electrolytic processing process.
Electrolyte component control comprises electrolyte temperature, the control of electrical conductivity and pH value, in electrochemical machining process, electrolyte temperature rise is higher, electrical conductivity fluctuates greatly and the larger variation of pH value is all unfavorable for giving full play to of electrolyte property, electrolyte temperature rise is higher, and machining area electrolyte easily seethes with excitement, evaporates and forms hole, causes cathode and anode short circuit; Electrical conductivity fluctuation causes more greatly the larger variation of machining gap, and the forming accuracy of Electrolyzed Processing is difficult to ensure, and machining gap hour, easily causes short circuit; Electrolyte PH value changes greatly, shows that in electrolyte, electrolyte consumption is more, electrolyte meta-alkalescence conventionally, and processing district electrolysate will be difficult to discharge more, and other performances of electrolyte also will be affected.Therefore, just can guarantee to the accurate control of electrolyte component the electrochemical properties that electrolyte is stable, physical characteristic and stability, to improve stability and the machining accuracy of electrochemical machining process.
The domestic auto-control degree to electrolyte component is also relatively low at present, conventionally be all before engineer testing and industrial production, use PH meter, the pH value of densitometer to electrolyte, electrical conductivity is controlled, and in electrochemical machining process, electrolyte component is lacked to strict monitoring and adjustment, Germany EMAG electrochemistry processing circulate electrolyte filtration system, electrolyte PH value, electrical conductivity accuracy-control system are equipped with, the vibration feed technology of developing in conjunction with self, can realize high-quality, the highly-efficient processing on blisk leaf basin, blade back and intake and exhaust limit.Stitch in processing the quiet cutter lid of shaver group, because process time is shorter, about 2 minutes, single process electrolyte component changes minimum conventionally, but repeatedly after processing, still needs electrolyte component repeatedly to adjust; And the roughing of blisk, because single leaf basin, blade back process time is conventionally about 1 hour, will there is larger variation in electrolyte component, in order to improve the machining accuracy of leaf basin, blade back, need electrolyte component accurately to control in electrochemical machining process.
Summary of the invention
The present invention is directed to the deficiency of current electrolysis liquid circulated filter system and control method thereof, a kind of circulate electrolyte filtration system of multiloop parallel filtering is proposed, and secondary filter in plate and frame filter press in loop and pipeline is monitored in real time, circulate electrolyte filtration system filters performance and stability are improved, and electrolyte component control method of the present invention has realized electrolyte PH value, the Real-Time Monitoring of electrical conductivity, and by the break-make of the corresponding magnetic valve of industrial computer control tune liquid bath, guarantee the pH value that electrolyte is stable, electrical conductivity, stability and the machining accuracy of electrochemical machining process are improved.
In order to realize foregoing invention object, technical scheme of the present invention is:
A kind of Electrolyzed Processing circulate electrolyte filtration system, this system is filtered afterwards the defeated Electrolyzed Processing system that is back to again to the electrolyte of Electrolyzed Processing system output, the electrolyte of Electrolyzed Processing system output is divided into two loops, the first loop is: electrolyte is to electrolytic bath I after the electrolytic bath of three grades of series connection filters, and front two-stage electrolytic bath is to be provided with filter in electrolytic bath II and electrolytic bath III; Second servo loop is: electrolyte is delivered to equally electrolytic bath I and confluxes with the electrolyte in the first loop through plate and frame filter press, cooling water circulation machine successively; Electrolyte after confluxing detaches through cell liquor pump, successively through primary filter, cell liquor pump, pressure regulator valve, secondary filter is defeated is back in Electrolyzed Processing system.
As improvement, the present invention is also provided with electrolyte filtering supervising device, and this device comprises the flow transmitter that is arranged on cooling water circulation machine liquid outlet rear side, is separately positioned on pressure transmitter II, the pressure transmitter I of both sides, secondary filter front and back; Flow transmitter, pressure transmitter II, pressure transmitter I are all connected to data collecting card by holding wire, data collecting card connects industrial computer again, industrial computer is controlled cell liquor pump simultaneously, plate and frame filter press, and the break-make of the NC Motion System of Electrolyzed Processing system, Electrolyzed Processing power supply.
Further, the present invention is also provided with electrolyte component control device, this device comprises the PH measurement electrode and the conductivity measurement electrode that are immersed in electrolytic bath I electrolyte, PH measurement electrode by holding wire connect PH transmitter main frame, conductivity measurement electrode connects conductivity transmitter main frame by holding wire; Latter two main frame be all connected with data collecting card holding wire; In addition this device is also provided with several and adjusts liquid bath, in each tune liquid bath, the solution for regulating electrolytic conductivity and pH value is housed, each tune liquid bath is through solenoid control flow separately and be connected to electrolytic bath I, and each magnetic valve is all connected to industrial computer by holding wire.
In addition, the present invention also provides the control method of this Electrolyzed Processing circulate electrolyte filtration system:
1) pressure difference value between pressure transmitter II, pressure transmitter I exceedes 0.1Mpa, the fault verification system of industrial computer is judged secondary filter non-normal working, turn-off cell liquor pump, the NC Motion System of plate and frame filter press and Electrolyzed Processing system, Electrolyzed Processing power supply;
2) when the flow value of flow transmitter feedback exceedes 25% with setting value error, the fault verification system of industrial computer is judged plate and frame filter press non-normal working, turn-off NC Motion System, the Electrolyzed Processing power supply of Electrolyzed Processing system, and cell liquor pump, plate and frame filter press;
3) pH value of measuring when PH measurement electrode is 7
pH
, judge that electrolyte PH value is normal at 7.5 o'clock; In the time of PH > 7.5, industrial computer control adjusts the electromagnetic valve I of liquid bath II to open, and adjusts the high concentration edta solution storing in liquid bath II to flow into electrolytic bath I, regulates electrolyte PH value to normal level;
4) when the electrolytic conductivity of conductivity measurement determination of electrode exists with setting value error
+in 0.3S/m time, the thresholding decision-making system of industrial computer judges that electrolytic conductivity is normal; When electrical conductivity is during higher than specification error scope, industrial computer control adjusts the electromagnetic valve II of liquid bath III to open, and adjusts the aqueous solution storing in liquid bath III to flow into electrolytic bath I, regulates electrolytic conductivity to normal level; When electrical conductivity is during lower than specification error scope, industrial computer control adjusts the electromagnetic valve II I of liquid bath I to open, and adjusts the high concentration electrolysis liquid storing in liquid bath I to flow into electrolytic bath I, regulates electrolytic conductivity to normal level.
Beneficial effect of the present invention is: (one) the present invention adopts the first loop: electrolytic bath III-primary filter plate-bleeder valve II-electrolytic bath II-secondary filter plate-bleeder valve I-electrolytic bath I and second servo loop: electrolytic bath III-bleeder valve III-plate and frame filter press-cooling water circulation machine-flow transmitter-electrolytic bath I, parallel filtering electrolyte, input machining area electrolyte cleannes are high.(2) the present invention adopts electrolyte filtering supervising device, and secondary filter and plate and frame filter press are carried out to Real-Time Monitoring, and in electrochemical machining process, circulate electrolyte filtration system operational reliability is high.(3) the electrolyte component control method that the present invention provides, by electrolyte PH value, electrical conductivity Real-Time Monitoring, the break-make of the corresponding magnetic valve of liquid bath is adjusted in industrial computer control, has guaranteed the stable of electrolyte PH value, electrical conductivity in electrochemical machining process.
Brief description of the drawings
Fig. 1 is circulate electrolyte filtration system overall structure schematic diagram of the present invention;
Fig. 2 is electrolyte filtering supervising device of the present invention and electrolyte component control device operation principle block diagram;
In figure: 1, Electrolyzed Processing system, 2, industrial computer, 3, data collecting card, 4, conductivity transmitter main frame, 5, pressure transmitter I, 6, PH transmitter main frame, 7, secondary filter, 8, pressure transmitter II, 9, overflow valve, 10, pressure regulator valve, 11, adjust liquid bath I, 12, adjust liquid bath II, 13, electromagnetic valve I, 14, electromagnetic valve II, 15, adjust liquid bath III, 16, supporting seat, 17, electromagnetic valve II I, 18, cell liquor pump, 19, primary filter, 20, PH measurement electrode, 21, conductivity measurement electrode, 22, bleeder valve I, 23, electrolytic bath I, 24, secondary filter plate, 25, electrolytic bath II, 26, bleeder valve II, 27, flow transmitter, 28, cooling water circulation machine, 29, plate and frame filter press, 30, bleeder valve III, 31, electrolyte pipeline, 32, bleeder valve IV, 33, electrolytic bath III, 34. primary filter plates.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, circulate electrolyte filtration system of the present invention, comprises electrolytic bath, electrolyte circulation means, electrolyte filter, electrolyte filtering supervising device, and electrolyte component control device.Wherein:
Electrolyte circulation means comprises cell liquor pump 18, pressure regulator valve 10, overflow valve 9, cooling water circulation machine 28, and electrolyte pipeline; Electrolyte filter comprises primary filter plate 34, primary filter 19, secondary filter plate 24, secondary filter 7 and plate and frame filter press 29; Electrolyte filtering supervising device comprises pressure transmitter, flow transmitter 27; Electrolyte component control device comprises industrial computer 2, and data collecting card 3 is adjusted liquid bath, magnetic valve, PH transmitter main frame 6, PH measurement electrode 20, conductivity transmitter main frame 4, conductivity measurement electrode 21.Electrolyte circulation means and electrolyte filter are for inputting swiftly flowing clean electrolyte to Electrolyzed Processing system 1; Cooling water circulation machine 28 is set steady temperature value, keeps electrolyte temperature stable; Electrolyte component control device is used for keeping electrochemical machining process electrolyte PH value and stable conductivity.
In circulate electrolyte filtration system, circulate electrolyte flow path is: cathode and anode machining area output electrolyte is to electrolytic bath III33, and in electrolytic bath III33, electrolyte is through the first loop: primary filter plate 34-bleeder valve II26-electrolytic bath II25-secondary filter plate 24-bleeder valve I22; And second servo loop: bleeder valve III30-plate and frame filter press 29-cooling water circulation machine 28-flow transmitter 27, after parallel filtering, be back to electrolytic bath I23, cell liquor pump 18 detaches electrolyte in electrolytic bath I23, through primary filter 19 and electrolyte pipeline, input to the cathode and anode machining area of Electrolyzed Processing system 1, pressure regulator valve 10, overflow valve 9 are for control inputs machining area flow of electrolyte and pressure, in pipeline, be also provided with pressure transmitter II8, secondary filter 7, and pressure transmitter I5.In the first loop, be provided with top higher than liquid level of electrolyte, bottom primary filter plate 34 and the secondary filter plate 24 lower than liquid level of electrolyte, cotton-shaped Electrolyzed Processing product, after twice filtration, is cut off in electrolytic bath III33 to electrolytic bath II25; The plate and frame filter press 29 arranging in second servo loop mainly filters the insoluble microparticle suspending in electrolytic bath III33 and precipitate, but not directly a large amount of cotton-shaped products of electrolyte surface are filtered, avoid the fast blocking of plate and frame filter press 29 in electrochemical machining process.Cut off in the cotton-shaped product of the electrolyte surface of electrolytic bath III33, electrolytic bath II25, all after finishing, processes electrochemical machining process, in electrolytic bath III33, cotton-shaped product processing method is: close bleeder valve III30, bleeder valve II26, open bleeder valve IV32, second servo loop drain pipe is moved to electrolytic bath III33 by electrolytic bath I23, use plate and frame filter press 29 to filter cotton-shaped product, wherein bleeder valve IV32 liquid outlet is lower than liquid level of electrolyte; Cotton-shaped product processing method in electrolytic bath II25 is: close bleeder valve II26, bleeder valve I22, open bleeder valve III30, pipeline feed tube corresponding bleeder valve III30 is moved to electrolytic bath II25 by electrolytic bath III33, second servo loop drain pipe is moved to electrolytic bath II25 by electrolytic bath I23, use plate and frame filter press 29 to filter cotton-shaped product.
As shown in Figure 2, for electrolyte filtering supervising device and electrolyte component control device theory diagram, pressure transmitter II8, the pressure transmitter I5 of electrolyte filtering supervising device, be arranged at the two ends of secondary filter 7, and the 7 filtration situations of secondary filter in electrochemical machining process are monitored, flow transmitter 27 is arranged in second servo loop, the 29 filtration situations of plate and frame filter press in electrochemical machining process are monitored, pressure transmitter I5, II8 and flow transmitter 27 are respectively electrolyte pressure signal, flow signal converts the current signal of 4～20mA to, by standard signal processing module, current signal is converted to the voltage signal of 0～5V, be connected to the analog input end of data collecting card 3, the analog voltage signal that data collecting card 3 obtains becomes respectively the data signal of pressure and flow after A/D conversion, industrial computer 2 extracts pressure by fault verification system, traffic characteristic is judged data signal, and result of determination is fed back to relay module, control cell liquor pump 18, the NC Motion System of plate and frame filter press 29 and Electrolyzed Processing system 1, the break-make of Electrolyzed Processing power supply etc., fault verification system basis for estimation is: pressure transmitter II8, pressure transmitter I5 pressure difference value exceedes 0.1Mpa, judge secondary filter 7 non-normal workings, turn-off cell liquor pump 18, plate and frame filter press 29, and the NC Motion System of Electrolyzed Processing system 1, Electrolyzed Processing power supply, the flow value that flow transmitter 27 feeds back exceedes 25% with setting value error, the fault verification system of industrial computer 2 is judged plate and frame filter press 29 non-normal workings, turn-off NC Motion System, the Electrolyzed Processing power supply of Electrolyzed Processing system 1, and cell liquor pump 18, plate and frame filter press 29.
Electrolyte component control device is to electrolyte PH value, electrical conductivity is controlled, PH measurement electrode 20, conductivity measurement electrode 21 is immersed in electrolyte, PH transmitter main frame 6, conductivity transmitter main frame 4 is electrolyte PH value signal, conductivity signal converts the current signal of 4～20mA to, by standard signal processing module, current signal is converted to the voltage signal of 0～5V, be connected to the analog input end of data collecting card 3, the analog voltage signal that data collecting card 3 obtains becomes respectively the data signal of pH value and electrical conductivity after A/D conversion, industrial computer 2 extracts pH value by thresholding decision-making system, the feature of electrical conductivity is judged data signal, result of determination is fed back to relay module, control the break-make of adjusting the corresponding magnetic valve of liquid bath, to keep electrolyte component stable, thresholding decision-making system basis for estimation is: electrolytic conductivity exists with setting value error
+in 0.3S/m time, judge that electrolytic conductivity is normal, electrical conductivity during higher than specification error scope electromagnetic valve II 14 open, adjust the aqueous solution storing in liquid bath III15 to flow into electrolytic bath I23, regulate electrolytic conductivity to normal level, electrical conductivity during lower than specification error scope electromagnetic valve II I17 open, adjust the high concentration electrolysis liquid (NaNO storing in liquid bath I11
3solution or NaCl solution) flow into electrolytic bath I23, regulate electrolytic conductivity to normal level, along with the carrying out of Electrolyzed Processing, electrolyte PH value is tending towards alkalescent, and 7
pH
judge that electrolyte PH value is normal at 7.5 o'clock, when 7.5<PH, electromagnetic valve I 13 is opened, and adjusts the high concentration edta solution storing in liquid bath II12 to flow into electrolytic bath I23, regulates electrolyte PH value to normal level.Adjust liquid bath to be all positioned over supporting seat 16, magnetic valve liquid outlet height all, higher than the liquid level of electrolytic bath I23 electrolyte, while needing make-up solution, only need to use immersible pump that the solution configuring is detached to the correspondence tune liquid bath of eminence in tune liquid bath.
The concrete application approach of the present invention is a lot, and the above is only the preferred embodiment of the present invention, should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvement, these improve and also should be considered as protection scope of the present invention.
Claims (2)
1. an Electrolyzed Processing circulate electrolyte filtration system, this system is carried out after circulating filtration the defeated Electrolyzed Processing system (1) that is back to again to the electrolyte of Electrolyzed Processing system (1) output, it is characterized in that, the electrolyte of Electrolyzed Processing system (1) output is divided into two shunt circuits, the first loop is: electrolyte is to electrolytic bath I (23) after the electrolytic bath of three grades of series connection filters, and front two-stage electrolytic bath is to be provided with filter in electrolytic bath II (25) and electrolytic bath III (33); Second servo loop is: electrolyte is delivered to equally electrolytic bath I (23) and confluxes with the electrolyte in the first loop through plate and frame filter press (29), cooling water circulation machine (28) successively, electrolyte after confluxing detaches through cell liquor pump (18), passes through successively primary filter (19), cell liquor pump (18), pressure regulator valve (10), secondary filter (7) is defeated is back in Electrolyzed Processing system (1);
System is also provided with electrolyte filtering supervising device, this device comprises the flow transmitter (27) that is arranged on cooling water circulation machine (28) liquid outlet rear side, is separately positioned on pressure transmitter II (8), the pressure transmitter I (5) of both sides, secondary filter (7) front and back; Flow transmitter (27), pressure transmitter II (8), pressure transmitter I (5) are all connected in data collecting card (3) by holding wire, data collecting card (3) connects industrial computer (2) again, industrial computer (2) is controlled cell liquor pump (18) simultaneously, plate and frame filter press (29), and the break-make of the NC Motion System of Electrolyzed Processing system (1), Electrolyzed Processing power supply;
System is also provided with electrolyte component control device, this device comprises the PH measurement electrode (20) and the conductivity measurement electrode (21) that are immersed in electrolytic bath I (23) electrolyte, PH measurement electrode (20) connects PH transmitter main frame (6), conductivity measurement electrode (21) connects conductivity transmitter main frame (4), and two main frames are again by holding wire connection data capture card (3); In addition this device is also provided with several and adjusts liquid bath, in each tune liquid bath, be contained with the solution for regulating electrolytic conductivity and pH value, each tune liquid bath is through solenoid control flow separately and be connected to electrolytic bath I (23) by pipeline, and each magnetic valve is connected to industrial computer (2) by holding wire, industrial computer (2) is controlled the uninterrupted of each magnetic valve output solution.
2. a control method for circulate electrolyte filtration system described in claim 1, is characterized in that:
1) pressure difference value between pressure transmitter II (8), pressure transmitter I (5) exceedes 0.1Mpa, the fault verification system of industrial computer (2) is judged secondary filter (7) non-normal working, turn-off cell liquor pump (18), NC Motion System, the Electrolyzed Processing power supply of plate and frame filter press (29) and Electrolyzed Processing system (1);
2) when the flow value of flow transmitter (27) feedback exceedes 25% with setting value error, the fault verification system of industrial computer (2) is judged plate and frame filter press (29) non-normal working, turn-off NC Motion System, the Electrolyzed Processing power supply of Electrolyzed Processing system (1), and cell liquor pump (18), plate and frame filter press (29);
3) pH value of measuring when PH measurement electrode (20) is 7
pH
7.5 o'clock, the thresholding decision-making system of industrial computer (2) judged that electrolyte PH value is normal; In the time of PH > 7.5, industrial computer (2) is controlled and is adjusted the electromagnetic valve I (13) of liquid bath II (12) to open, adjust the high concentration edta solution storing in liquid bath II (12) to flow into electrolytic bath I (23), regulate electrolyte PH value to normal level;
4) electrolytic conductivity of measuring when conductivity measurement electrode (21) exists with setting value error
+in 0.3S/m time, the thresholding decision-making system of industrial computer (2) judges that electrolytic conductivity is normal; When electrical conductivity is during higher than specification error scope, industrial computer (2) is controlled and is adjusted the electromagnetic valve II (14) of liquid bath III (15) to open, adjust the aqueous solution storing in liquid bath III (15) to flow into electrolytic bath I (23), regulate electrolytic conductivity to normal level; When electrical conductivity is during lower than specification error scope, industrial computer (2) is controlled and is adjusted the electromagnetic valve II I (17) of liquid bath I (11) to open, adjust the high concentration electrolysis liquid storing in liquid bath I (11) to flow into electrolytic bath I (23), regulate electrolytic conductivity to normal level.
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| CN103464845B (en) * | 2013-08-26 | 2016-07-13 | 南京航空航天大学 | A kind of large-size multi-axis-linkage electrolytic machine tool |
| CN103706897B (en) * | 2013-12-31 | 2016-01-20 | 常州工学院 | The electrical conductivity on-line measurement device and method of electrolyte in a kind of Electrolyzed Processing |
| CN103658884B (en) * | 2013-12-31 | 2016-04-20 | 常州工学院 | The electrical conductivity On-line Control device and method of electrolyte in a kind of Electrolyzed Processing |
| CN103752966B (en) * | 2014-01-28 | 2016-08-17 | 盐城工学院 | A kind of integrated impeller blade Electrolyzed Processing intelligent controlling device and control method thereof |
| CN103990872B (en) * | 2014-05-26 | 2016-04-27 | 南京航空航天大学 | A kind of electrolytic machine tool and method of work thereof |
| CN104741712A (en) * | 2015-04-01 | 2015-07-01 | 山东大学 | Spherical cathode numerical control electrochemical machining machine tool |
| CN104801796B (en) * | 2015-04-13 | 2017-07-28 | 南京航空航天大学 | The electrolyte precise control system and its method of work of parameter real-time, tunable |
| CN108188509B (en) * | 2017-12-28 | 2020-07-28 | 常州工学院 | Online automatic filtration device of electrolytic machining electrolyte |
| CN108746901B (en) * | 2018-07-10 | 2019-10-29 | 常州工学院 | A kind of Full-automatic electrolytic processing electrolyte filter and method |
| CN111843068A (en) * | 2020-06-30 | 2020-10-30 | 四川聚亿重工有限公司 | Equipment for electrolytic machining |
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| US5189276A (en) * | 1990-02-13 | 1993-02-23 | Mitsubishi Denki K.K. | Method and apparatus for treating the dielectric used in electrical discharge machining |
| CN1136071C (en) * | 2001-09-04 | 2004-01-28 | 深圳大学 | Cyclic treating system of working liquid for electrospark machining |
| CN101249577B (en) * | 2008-03-07 | 2012-01-04 | 南京航空航天大学 | Active control type electrolysing solution flowing method in blade process and electrolysing solution circulating system |
| CN101633066A (en) * | 2009-07-24 | 2010-01-27 | 南京航空航天大学 | Vacuum backflow electrolysis processing method and vacuum backflow electrolysis processing device |
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