CN102703963A - Movable electrode (cathode) for stainless steel inner tube electropolishing - Google Patents
Movable electrode (cathode) for stainless steel inner tube electropolishing Download PDFInfo
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- CN102703963A CN102703963A CN2011100775270A CN201110077527A CN102703963A CN 102703963 A CN102703963 A CN 102703963A CN 2011100775270 A CN2011100775270 A CN 2011100775270A CN 201110077527 A CN201110077527 A CN 201110077527A CN 102703963 A CN102703963 A CN 102703963A
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Abstract
The invention relates to a movable electrode (cathode) for stainless steel inner tube electropolishing processing; the electrode is movable, and the moving speed can be adjusted continuously according to the processing quality and requirements; materials with good conductivity performance are selected, and have a length of about 100 mm-200 mm; an insulation ring is mounted between the electrode and a stainless steel tube inner wall; the movable electrode is fixed at a center position of a shaft of the stainless steel tube so as to allow the distance between the cathode and an anode (the stainless steel tube) to be the same; and thus the processed electropolishing quality is consistent; the copper electrode is not cylinderical, but has a sheet structure, which increases the conductive area of the cathode and improves the electropolishing quality. Adequate intervals are left between the movable electrode (cathode) and the stainless steel tube inner wall to be processed, and thus the flow of electropolishing liquid is not interfered; on one hand, the discharge of gas generated during electropolishing is quite facilitated; on the other hand, wastes generated during electropolishing is taken away timely. Both length and size ranges of stainless steel tubes to be processed are enlarged greatly, and the quality is ensured.
Description
Technical field
The present invention relates to pipe electropolishing technical field in the stainless steel, specifically be meant a kind of movable auxiliary electrical (the moon) utmost point that the pipe electropolishing is used in the stainless steel that is used for, can be according to actual needs, but the translational speed hand is transferred automatically.
Background technology
Pipe carries out the processing of electropolishing usually according to actual needs in the existing stainless steel tube.Because the stainless steel tube bore is different, length is different, if in pipe, do not place a supporting electrode, can not carry out electropolishing to stainless steel inside pipe wall.
The fixed mode is extremely generally taked in pipe electropolishing electricity consumption (the moon) in the existing stainless steel tube; A supporting electrode is inserted in the stainless steel tube; Make between stainless steel inside pipe wall and the supporting electrode and fill electrolytic polishing liquid; Stainless steel tube connects positive source, and supporting electrode connects power cathode, and energising is processed.Though this way is simple, operation easily, the electropolishing quality cannot say for sure to demonstrate,prove, and for length very long (more than six meters), the stainless steel tube of internal diameter less (is 4mm such as internal diameter) just can't have been processed.
There is following problem in the pipe electropolishing with fixed auxiliary electrical (the moon) utmost point in original stainless steel:
1, the electropolishing electric current is little: one six meters long electricity (the moon) utmost point is inserted in six meters long stainless steel tubes to be processed, electropolishing liquid medicine is injected again, energising processing then; The principle general requirement cathode area of electropolishing just can reach good electropolishing effect greater than annode area (general requirement cathode and anode area ratio is 2: 1).Because the electrode diameter in the tubular stinger is all the time less than the stainless steel tube internal diameter, then the electric current of electric field is very little through amount, does not reach the due effect of electropolishing.If through improving voltage, improve the magnitude of current, under the certain situation of sectional area, circulating current is excessive, easily supporting electrode is blown.
But 2 processing stainless steel scope tubes are narrow: owing to receive the restriction of stainless steel internal diameter size, consider the required distance of electropolishing anode and cathode again, make that auxiliary electrical (the moon) utmost point in the tubular stinger can be very little; For some bores at millimetre-sized stainless steel tube; The too small negative electrode of diameter can't insert in the stainless steel tube of six meters of length at all, and because diameter is little, the current flowing area also can be little; Can't be through big electric current; Two of stainless steel tube inlet can be arrived by electropolishing often, but the middle part electric current of pipe can't flow to, and has no polishing action.And because the electrode diameter that inserts is little, crooked easily, be easy to contact with the stainless steel inwall, produce short circuit, wound inwall.For the long more pipe of length, if 12 meters long pipes, that just can't process at all.
3, electropolishing processing generation gas is many: the length of auxiliary electrical (the moon) utmost point is the same long with processed stainless steel tube length, and with six meters long stainless steel tubes by way of example, the length of its auxiliary electrical (the moon) utmost point is also basically about six meters; Then during electropolishing; Whole stainless steel inside pipe wall is adding man-hour, can produce gas simultaneously, because the gas that produces is too much in the unit time; For small-bore stainless steel tube, gas often can not be discharged from immediately;
Because electrolytic polishing liquid density very high (about 1.75), viscosity is big, and the space of adding in the stainless steel tube is little; It is many to add the gas that produces man-hour; All caused gas in body, not drain timely, had a strong impact on the electropolishing effect, the part has hickie to occur in usually can occurring managing; This all is that gas gathers here, the result that this place is not arrived by electropolishing.
4, quality of finish is unstable: because the defective of pipe electropolishing electricity consumption (the moon) utmost point in the stainless steel, because more than, usually cause quality of finish not guarantee: if electric current is big inadequately, luminance brightness is poor; If gas can not discharge timely, having the part can not be polished to; Being of limited application of processing stainless steel pipe, some length are very long, and the stainless steel tube basis that bore is again little can't be processed.
5, production efficiency and level of automation are low: traditional supporting electrode is installed the manually-operated mode that all adopts; The reasonableness of installing is all decided by operator, skilled worker and roustabout, and owing to empirical reason, it is equipped with difference, and the quality that electropolishing comes out also can be variant.And labour intensity is big, and difficulty is big, and particularly electrolytic polishing liquid is generally acid liquid medicine, personnel's direct control, and its work hazard level is also higher.
Can know that through top analysis all there are problems such as " the electropolishing electric current are little, the processing stainless steel scope tube is narrow, electropolishing processing generation gas is many, unstable low, the production efficiency of quality of finish and level of automation low " in electropolishing with auxiliary electrical (the moon) utmost point in the existing stainless steel tube.So the quality that domestic existing stainless steel tube electropolishing apparatus processing is come out can't be competed with import stainless steel electrolytic polishing pipe mutually, can not contend with it.
Therefore, be necessary existing fixed formula electricity (the moon) utmost point is carried out technological innovation, adopt movable electricity (the moon) utmost point, all problems of being mentioned more than solving improves electropolishing processing quality, stability, and enhances productivity.
Summary of the invention
The objective of the invention is to overcome the shortcoming that above-mentioned original fixed electricity (the moon) utmost point exists, a kind of movable electricity (the moon) utmost point is provided, and should the moving adjustable-speed of electricity (the moon) Ghandler motion.
To achieve these goals, the pipe electropolishing has following formation with movable electricity (the moon) in the stainless steel of the present invention:
The pipe electropolishing comprises auxiliary electrical (the moon) utmost point, pull unit, PID fuzzy automatic control system with movable electricity (the moon) utmost point in the stainless steel; Said electricity (the moon) utmost point comprises auxiliary electrical (the moon) utmost point, bracing frame, union lever; Said pull unit comprises stepper-motor, frequency transformer, limit switch, voltmeter, reometer, overcurrent voltage protector, emergency stop push button etc.; Said hand automatic control system has PLC, data trap, variable-frequence governor, PID fuzzy control software, hand auto-switching push button etc.; Said auxiliary electrical (the moon) utmost point is positioned at the front of union lever; Said pull unit is positioned at the back of union lever; Said union lever is positioned between auxiliary electrical (the moon) utmost point and the pull unit; Movable electricity (the moon) utmost point is in the inside of said stainless steel tube to be processed; Limit switch is positioned at two of stainless steel tube to be processed; Said system is adjusted the electrode translational speed according to electropolishing current/voltage value constantly voluntarily under the situation of work, but also manually adjust; Under the situation of processing, auxiliary electrical (the moon) utmost point, union lever are positioned at stainless steel tube to be processed; Under the situation of processing, auxiliary electrical (the moon) utmost point, union lever are positioned at electrolytic polishing liquid.
Preferably, a cover electropolishing processing units, configurable two cover electropolishings are with movable electricity (the moon) utmost point.
More preferably, a cover electropolishing processing units, configurable many cover electropolishings are with movable electricity (the moon) utmost point.
More preferably, said electropolishing can be used for the inner electropolishing processing of stainless steel pipe class with movable electricity (the moon) utmost point.
Preferably, said automatic control system is all by microcomputer control and the detailed electrical subrecord is arranged.
More preferably, the pipe movable electricity of electropolishing (the moon) utmost point in the said stainless steel through change electrolytic polishing liquid liquid medicine prescription, reaches the adjustment machined parameters, can be used for movable electricity (the moon) utmost point of other metal inner pipe polishing.
In the stainless steel of the present invention on the pipe movable electricity of electropolishing (the moon) utmost point know-why, the design of electricity (the moon) utmost point goes up, on the processing technology, on electricity (the moon) electrode structure, on the operating method, all done brand-new design improvement, concrete property is following:
(1) adopt movable electricity (the moon) utmost point: the present invention adopts movable electricity (the moon) utmost point, specifically adopts copper electrode, and length along the stainless steel tube length direction, moves around about 100mm, and translational speed is adjustable; Before electrode and the stainless steel inside pipe wall insulated ring is housed, the motion electrode is fixed on stainless steel tubular axis central position, make negative electrode identical, and guarantee not scratch stainless steel inside pipe wall to the distance of anode (stainless steel tube); The copper electrode outside is the fin-shaped structure, its objective is the conductive area that increases negative electrode, strengthens the current flowing amount.
(2) adopt the speed-adjustable pull unit: the present invention adopts the speed-adjustable pull unit; Processing electric current, the voltage swing that can come according to the machined parameters settings, through collection; By PID Fuzzy control system output order; Adjustment stepper-motor rate travel, stepper-motor drives union lever, and union lever drives movable electricity (the moon) utmost point and in filling the stainless steel tube of electrolytic polishing liquid, moves around.
(3) PID fuzzy automatic control system: the automatic control system that the present invention adopts, based on the PID fuzzy control theory, with adopting on-the-spot PLC and acquisition module, through gathering the order of electric current, voltage, output adjustment translational speed.Control accuracy is high, speed of response is fast, can combine the parameters such as rolling speed, electrolytic polishing liquid velocity of flow of stainless steel tube to be processed simultaneously, calculates the moving speed of optimized electricity (the moon) Ghandler motion.
Description of drawings
Fig. 1 is the floor map of a specific embodiment of the present invention.
Fig. 2 is movable electricity (the moon) the polar plane synoptic diagram of specific embodiment shown in Figure 1.
Fig. 3 is the speed-adjustable pull unit synoptic diagram of specific embodiment shown in Figure 1.
Fig. 4 is the PID fuzzy automatic control systematic schematic diagram of specific embodiment shown in Figure 1.
Embodiment
In order more to be expressly understood technology contents of the present invention, the special following examples of lifting specify.
See also Fig. 1～shown in Figure 4, the pipe electropolishing comprises movable auxiliary electrical (the moon) utmost point 7, pull unit 11, PID fuzzy automatic control system with movable auxiliary electrical (the moon) utmost point in the stainless steel of the present invention; Said movable auxiliary electrical (the moon) utmost point 7 comprises auxiliary electrical (the moon) utmost point 1, bracing frame 6, union lever 3; Said pull unit 11 comprises stepper-motor 10, frequency transformer 11, limit switch 12, voltmeter, reometer, overcurrent voltage protector, emergency stop push button etc.; Said hand automatic control system has PLC, data trap, variable-frequence governor, PID fuzzy control software, hand auto-switching push button etc.; Said auxiliary electrical (the moon) utmost point 1 is positioned at the front of union lever 3; Said pull unit 11 is positioned at the back of union lever 3; Said union lever 3 is positioned between auxiliary electrical (the moon) utmost point 7 and the pull unit 11; Movable electricity (the moon) utmost point 7 is in the inside of said stainless steel tube 5 to be processed; Limit switch 12 is positioned at two of stainless steel tube 5 to be processed; Said system is adjusted the electrode translational speed according to electropolishing current/voltage value constantly voluntarily under the situation of work, but also manually adjust; Under the situation of processing, auxiliary electrical (the moon) utmost point 1, union lever 3 are positioned at stainless steel tube 5 to be processed; Under the situation of processing, auxiliary electrical (the moon) utmost point 1, union lever 3 are positioned at electrolytic polishing liquid 7.
Preferably, a cover electropolishing processing units, configurable two cover electropolishings are with movable electricity (the moon) utmost point 7.
More preferably, a cover electropolishing processing units, configurable many cover electropolishings are with movable electricity (the moon) utmost point 7.
More preferably, said electropolishing can be used for the inner electropolishing processing of stainless steel pipe class with movable electricity (the moon) utmost point 7.
Preferably, said automatic control system is all by microcomputer control and the detailed electrical subrecord is arranged.
More preferably, the pipe movable electricity of electropolishing (the moon) utmost point 7 in the said stainless steel, through change electrolytic polishing liquid liquid medicine prescription, and the adjustment machined parameters, can be used for the movable electricity of other metal inner pipe (the moon) utmost point.
To sum up, in the stainless steel of the present invention the pipe electropolishing with movable electricity (the moon) extremely modern design, be skillfully constructed, easy and simple to handle, simple in structure, level of automation is high, quality of finish good, production efficiency is high.
In this specification sheets, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, specification sheets and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (6)
1. the pipe electropolishing comprises auxiliary electrical (the moon) utmost point, pull unit, PID fuzzy automatic control system with movable electricity (the moon) utmost point in the stainless steel; Said electricity (the moon) utmost point comprises auxiliary electrical (the moon) utmost point, bracing frame, union lever; Said pull unit comprises stepper-motor, frequency transformer, limit switch, voltmeter, reometer, overcurrent voltage protector, emergency stop push button etc.; Said hand automatic control system has PLC, data trap, variable-frequence governor, PID fuzzy control software, hand auto-switching push button etc.; Said auxiliary electrical (the moon) utmost point is positioned at the front of union lever; Said pull unit is positioned at the back of union lever; Said union lever is positioned between auxiliary electrical (the moon) utmost point and the pull unit; Movable electricity (the moon) utmost point is in the inside of said stainless steel tube to be processed; Limit switch is positioned at two of stainless steel tube to be processed; Said system is adjusted the electrode translational speed according to electropolishing current/voltage value constantly voluntarily under the situation of work, but also manually adjust; Under the situation of processing, auxiliary electrical (the moon) utmost point, union lever are positioned at stainless steel tube to be processed; Under the situation of processing, auxiliary electrical (the moon) utmost point, union lever are positioned at electrolytic polishing liquid.
2. the pipe electropolishing is characterized in that with movable electricity (the moon) utmost point in the stainless steel according to claim 1, the said cover electropolishing processing units that also comprises, and configurable two cover electropolishings are with movable electricity (the moon) utmost point.
3. the pipe electropolishing is characterized in that with movable electricity (the moon) utmost point in the stainless steel according to claim 1, the said cover electropolishing processing units that also comprises, and configurable many cover electropolishings are with movable electricity (the moon) utmost point.
4. the pipe electropolishing is characterized in that with movable electricity (the moon) utmost point in the stainless steel according to claim 1, and said electropolishing can be used for the inner electropolishing processing of stainless steel pipe class with movable electricity (the moon) utmost point.
5. the pipe electropolishing is characterized in that with movable electricity (the moon) utmost point in the stainless steel according to claim 1, and said automatic control system is all by microcomputer control and the detailed electrical subrecord is arranged.
6. the pipe electropolishing is with movable electricity (the moon) utmost point in the stainless steel according to claim 1; It is characterized in that; The pipe movable electricity of electropolishing (the moon) utmost point in the said stainless steel; Through change electrolytic polishing liquid liquid medicine prescription, and the adjustment machined parameters, can be used for the movable electricity of other metal inner pipe (the moon) utmost point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100775270A CN102703963A (en) | 2011-03-28 | 2011-03-28 | Movable electrode (cathode) for stainless steel inner tube electropolishing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100775270A CN102703963A (en) | 2011-03-28 | 2011-03-28 | Movable electrode (cathode) for stainless steel inner tube electropolishing |
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|---|---|
| CN102703963A true CN102703963A (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100775270A Pending CN102703963A (en) | 2011-03-28 | 2011-03-28 | Movable electrode (cathode) for stainless steel inner tube electropolishing |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276437A (en) * | 2013-04-26 | 2013-09-04 | 葫芦岛华远化工机械装备有限公司 | Method for electrolytic polishing of inner wall of kettle |
| CN103820844A (en) * | 2014-03-03 | 2014-05-28 | 大连理工大学 | Tool electrode used for electrolytic polishing of internal surface of long and thin bend pipe |
| CN103924270A (en) * | 2014-04-18 | 2014-07-16 | 四川材料与工艺研究所 | Homogeneous electrochemical treatment method of inner surface of tubular workpiece |
| CN104726928A (en) * | 2015-03-06 | 2015-06-24 | 大连理工大学 | Electrochemical polishing device for inner surface of long and thin pipeline |
| CN108570705A (en) * | 2018-05-02 | 2018-09-25 | 宣城品宙洁净科技有限公司 | A kind of electrobrightening equipment for stainless steel inside pipe wall |
| CN108754595A (en) * | 2018-07-05 | 2018-11-06 | 刘素兰 | Stainless steel pipe inner surface electrolysis system and its application method |
| CN109594120A (en) * | 2018-11-16 | 2019-04-09 | 首都航天机械有限公司 | A kind of cylindrical shape stainless steel thin-wall bellows electropolishing method |
| CN114108066A (en) * | 2022-01-06 | 2022-03-01 | 宣城品宙洁净科技有限公司 | Electrolytic polishing equipment for inner wall of large-diameter stainless steel pipe |
-
2011
- 2011-03-28 CN CN2011100775270A patent/CN102703963A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276437A (en) * | 2013-04-26 | 2013-09-04 | 葫芦岛华远化工机械装备有限公司 | Method for electrolytic polishing of inner wall of kettle |
| CN103276437B (en) * | 2013-04-26 | 2016-04-20 | 葫芦岛华远化工机械装备有限公司 | A kind of inner wall of kettle electrolytic polishing method |
| CN103820844A (en) * | 2014-03-03 | 2014-05-28 | 大连理工大学 | Tool electrode used for electrolytic polishing of internal surface of long and thin bend pipe |
| CN103820844B (en) * | 2014-03-03 | 2016-01-06 | 大连理工大学 | A kind of inner surface of elongated bend pipe electropolishing tool-electrode |
| CN103924270A (en) * | 2014-04-18 | 2014-07-16 | 四川材料与工艺研究所 | Homogeneous electrochemical treatment method of inner surface of tubular workpiece |
| CN104726928A (en) * | 2015-03-06 | 2015-06-24 | 大连理工大学 | Electrochemical polishing device for inner surface of long and thin pipeline |
| CN108570705A (en) * | 2018-05-02 | 2018-09-25 | 宣城品宙洁净科技有限公司 | A kind of electrobrightening equipment for stainless steel inside pipe wall |
| CN108754595A (en) * | 2018-07-05 | 2018-11-06 | 刘素兰 | Stainless steel pipe inner surface electrolysis system and its application method |
| CN109594120A (en) * | 2018-11-16 | 2019-04-09 | 首都航天机械有限公司 | A kind of cylindrical shape stainless steel thin-wall bellows electropolishing method |
| CN114108066A (en) * | 2022-01-06 | 2022-03-01 | 宣城品宙洁净科技有限公司 | Electrolytic polishing equipment for inner wall of large-diameter stainless steel pipe |
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Application publication date: 20121003 |