CN102597333A - Electrolytic process apparatus - Google Patents
Electrolytic process apparatus Download PDFInfo
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- CN102597333A CN102597333A CN2010800413254A CN201080041325A CN102597333A CN 102597333 A CN102597333 A CN 102597333A CN 2010800413254 A CN2010800413254 A CN 2010800413254A CN 201080041325 A CN201080041325 A CN 201080041325A CN 102597333 A CN102597333 A CN 102597333A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/008—Current shielding devices
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/02—Process control or regulation
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/10—Electrodes, e.g. composition, counter electrode
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/10—Electrodes, e.g. composition, counter electrode
- C25D17/12—Shape or form
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/12—Process control or regulation
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Automation & Control Theory (AREA)
- Electrolytic Production Of Metals (AREA)
- Electroplating Methods And Accessories (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
Electrolytic process apparatus comprises a voltage source for electrically coupling to first and second electrodes, a detection circuit electrically coupled to the voltage source and a guard for providing a barrier between the first and second electrodes. The guard is arranged to permit current to travel within an electrolyte between the electrodes. The guard includes a guard conductor arranged to be electrically isolated from the electrodes. The guard conductor is arranged to be electrically coupled to the detection circuit such that the detection circuit can detect the presence of a current path between the guard conductor on the one hand and either electrode on the other hand.
Description
Technical field
The present invention relates to electrolytic processing apparatus.The invention still further relates to the protected electrode that the safety guard of barrier is provided and is used for electrolytic processing apparatus between first and second electrodes in electrolytic processing apparatus.
Background of invention
Plating is to be used to deposit a kind of known electrolytic process of layer of material such as metal to the target surface.According to known technology, as shown in Figure 1, electroplanting device 1000 comprises the electrolyzer 1002 that holds electrolyte solution 1004.Thereby being connected to the negative pole end 1012 of power supply (not shown), target compound 1008 becomes negative electrode.Thereby being connected to the positive terminal 1010 of power supply, source thing 1006 becomes anode.Anode 1006 all immerses in the electrolyte solution 1004 with negative electrode 1008.Power supply provides direct current (dc) to anode 1006, thereby for being dissolved in the molecule charging in the electrolyte solution 1004.The metals ion that is dissolved in electrolyte solution 1004 is adsorbed and deposits to cathode surface.This is known plating, as understood by one of ordinary skill in the art.Can allow to use inert anode and green anode again when in electrolyte solution (being suitable for this process), containing enough dissolved metals ions.
The problem that exists in the known plating is the deposition material that is difficult to obtain at cathode surface homogeneous thickness.How much patterns of negative electrode cause occurring this problem.For example, if the surface that negative electrode comprises the hole or rises and falls, the anode of a fixed position can not make the inside in hole, and for example deposition is closed needs thickness, homogenization or quality is arranged.In some cases, ion is adsorbed to outside turning or high spot rather than recess.The known method that addresses this problem is to use the anode of a plurality of anodes and/or special shape, the known pictograph anode that is complementary like the surface profile with negative electrode.Yet if negative electrode for example is disposable or rare object, it possibly be irrational producing pictograph anodic cost so.Different sites with respect to negative electrode uses a plurality of anodes or moves the cost that single anode can increase the plating negative electrode equally.As shown in Figure 2, the known mode that addresses this problem is to use the supplementary anode 1014 that is connected to power positive end 1016.Supplementary anode or protected anode can MC and be used for " finishing " need special concern such as the perhaps zone in hole of depression.
When the problem of using supplementary anode is anode contact negative electrode, between anode and negative electrode, produce spark, this possibly burn negative electrode.This is considered to electric arc.In some cases, because burning of causing of the electric arc that produces between anode and the negative electrode can structurally be damaged negative electrode.For example, negative electrode is the take-off and landing device of aircraft, thin minimum with the weight that guarantees this take-off and landing device of the autotelic use of the take-off and landing device of aircraft with the light-weight material, and can cause this take-off and landing device not use by burning of causing of electric arc.Therefore, single contact instance has the valuable object that damages the formation negative electrode between anode and the negative electrode, such as the potential possibility of take-off and landing device.
As shown in Figure 3, the known mode that addresses this problem is to use the safety guard 1100 of the perforation that places the supplementary anode top.This safety guard constitutes such as plastic net with insulating material, and between supplementary anode and negative electrode, forms barrier.This safety guard material allows ion to move and realize negative electrode plating from anode to negative electrode via this perforation.This insulating safety guard stops anode contact negative electrode simultaneously, and after for some time, thereby these safety guard wearing and tearing allow anode contact negative electrode, therefore allow electric arc to produce and damage negative electrode.In addition, the coating of this safety guard material also possibly allow the turning of anode and negative electrode or side edge to touch.
Summary of the invention
According to first aspect of the present invention electrolytic processing apparatus is provided; The safety guard that it comprises the voltage source that is arranged to be electrically coupled to first and second electrodes, the testing circuit that is electrically coupled to this voltage source and barrier is provided between first and second electrodes; This safety guard is arranged to allow to pass through electric current in the ionogen between the electrode; Wherein this safety guard comprises the protection conductor that is arranged to the electrode electrical isolation; This protection conductor is arranged to be electrically coupled to this testing circuit, makes this testing circuit can detect the current path that exists between the electrode of this protection conductor and opposite side of a side.
Therefore this safety guard provides physical barriers between electrode, the problem that can not cause electrode to be in contact with one another so that electrode is contiguous mutually during the electrolysis treatment like this, and this possibly cause damaging the spark of one or two electrode.This protection conductor is arranged to be electrically coupled to supervisory circuit and for example realizes basically and whole electrode electrical isolation through insulating coating.Therefore, apply voltage to the protection conductor through supervisory circuit or separate voltages source, only and if insulation mode be damaged, between protection conductor and electrode, do not have current path basically.Thereby insulation mode is damaged and exposes the partial protection conductor, and contact between exposed portions and electrode or approaching contact have produced current path, and this current path can detect through supervisory circuit.This current path means that this safety guard needs to change.
This testing circuit can be arranged to detect and exist this current path promptly to send signal, is used to cut off this voltage source.
Therefore, the current path between protection conductor and the electrode can be used as triggering device and causes this voltage source to be cut off to cause supervisory circuit.Can prevent like this because the electrode damage that the electric arc that produces between the electrode causes.
This testing circuit comprises first detector; Be arranged to monitor the difference of the electrical characteristic between this safety guard and first electrode; And/or second detector; Be arranged to monitor the difference of the electrical characteristic between this safety guard and second electrode, and/or the 3rd detector, be arranged to the difference of the electrical characteristic between the monitoring electrode.Electrical characteristic are meant one or more of voltage, resistance or electric current.
This testing circuit comprises and the voltage-level detector associated switch that this voltage-level detector is arranged to produce when signal surpasses predetermined threshold value with the voltage difference in monitoring and is used to open switch, and voltage source is closed when making switch open.
This safety guard be included in except this protection conductor be arranged to have insulating coating on all surface those surfaces with the supervisory circuit electric coupling.
Therefore, this protection conductor can pass through electric insulation coating layer for example PVC and electrode electrical isolation.It should be understood that " electrical isolation " means between protection conductor and electrode does not form closed circuit, and the mode from electrode insulation protection conductor is that exist and acting simultaneously.
This safety guard is arranged to seal the part of this first electrode.This protection conductor can be coiled in around this first electrode.
Therefore, can form barrier, this means between the electrode of a plurality of directions of first electrode to have physical barriers around partial electrode through sealing this safety guard of first electrode.
This safety guard comprises being arranged to fixes the insulating support that this conductor and this first electrode are separated.
Therefore, with if safety guard directly with partial electrode exposure phase ratio, through safety guard and anode are separated, more the electrolyte solution contacts electrode of volume can improve electrolysis treatment like this.
First electrode can be an anode and second electrode is a negative electrode.Perhaps, first electrode can negative electrode and second electrode is an anode.This arranges to confirm (for example, first electrode is as anode in the plating, and first electrode is as negative electrode in the anodic oxidation) by the processing of needs.
This testing circuit comprises one or more set(ting)values, and this set(ting)value is the value of confirming or is arranged to according to voltage source output adjustment automatically.
According to second aspect of the present invention; The safety guard that barrier is provided between first and second electrodes according to the electrolytic processing apparatus of first aspect present invention is provided; This safety guard is arranged to and passes through electric current in the ionogen that allows between the electrode, and wherein this safety guard comprises the protection conductor that is arranged to the electrode electrical isolation.
This safety guard be included in except this protection conductor be arranged to have insulating coating on all surface those surfaces with the supervisory circuit electric coupling.
This safety guard is arranged to seal the part of this first electrode and/or be coiled in around this first electrode.At random or in addition, this safety guard comprises and is arranged to the fixing insulating support that this conductor and this first electrode are separated.
Description of drawings
Only as an example and with reference to accompanying drawing embodiments of the invention are described now, wherein:
Fig. 1 is the synoptic diagram of known electric plating appts;
Fig. 2 is the known partial view that is used as the supplementary anode of " contact " negative electrode;
Fig. 3 is known shielded supplementary anode;
Fig. 4 is the cross-sectional view of shielded supplementary anode according to an embodiment of the invention, comprises safety guard according to an embodiment of the invention;
Fig. 5 is the cross-sectional view that is directed against the safety guard of galvanic anode according to an embodiment of the invention;
Fig. 6 is the block diagram of electrolyzer according to an embodiment of the invention; With
Fig. 7 is the synoptic diagram of electrolyzer that comprises the details of testing circuit according to an embodiment of the invention.
Embodiment
Following description is relevant with plating application (wherein workpiece is connected to the negative pole end of power supply).It should be understood, however, that this device can be widely used in painted or the like the electrolysis treatment of, electropolishing clean such as plating, anodic oxidation, etching, electricity, electrophoretic painting, electricity.
" workpiece " (part that is processed) (in electroplate using) can be negative pole, be positive pole in anodic oxidation or according to the particular procedure needs perhaps.Under some are used, painted such as electricity, also can use the mixing of AC & DC.
With reference to Fig. 4, the shielded supplementary anode 10 according to the embodiment of the invention is shown.This shielded supplementary anode 10 comprises anode 1014, and this anode is arranged to be electrically coupled to the for example positive terminal 1010 of RF of direct current (DC) power supply via electrical isolation wire 1011.The suitable material that is used for this anode 1014 comprises stainless steel and cadmium, although for this process that is necessary to discuss, other materials also can use.Should be appreciated that this anode 1014 is electrodes.
This shielded supplementary anode 10 comprises safety guard 20.This safety guard 20 is being between this anode 1014 and the negative electrode (not shown) physical barriers to be provided during the electroplating processes, and is arranged to allow to pass through electric current in the electrolytic solution between this anode 1014 and this negative electrode.Should be appreciated that this negative electrode is an electrode.Therefore safety guard 20 allows or permits plating bath circulate freely through this safety guard 20, thereby allows that the dissolved metals ion flows freely into this negative electrode from this this safety guard of anode process in this plating bath.
Supplementary anode, negative electrode and the safety guard that is associated can be random shape or size, can be used as one or some elements for special design if desired.
In this illustrated embodiment, this safety guard 20 is arranged to be connected to anode 1014 and is arranged to the part around this anode 1014.Yet this safety guard 20 can be arranged to not coil or seal this anode 1014 and between this anode 1014 and negative electrode, form physical barriers in other embodiments.For example, in other embodiment, this safety guard 20 can be arranged to be connected to another structure, such as the part of coating bath that contains electrolytic solution or negative electrode, thereby between this anode 1014 and the negative electrode physical barriers being provided.Equally, should be realized that this safety guard 20 can be arranged to be connected to this anode 1014 and not seal this anode 1014, but can also be between this anode 1014 and the negative electrode physical barriers being provided.For example, this safety guard 20 can be arranged to be positioned at a side of this anode 1014.To recognize that it is favourable that this safety guard 20 is arranged to be connected to this anode 1014, because if this safety guard 20 is connected to this anode 1014 just generally can be moved with anode 1014, because this anode can be controlled by the user in using.In certain embodiments, this safety guard can be arranged to around the negative electrode of some part all or at least.
This safety guard 20 comprises conductive core, and for example Stainless Steel Wire has for example PVC of electric insulation coating layer, and preferably this coating covers the surface of whole exposures of this conductive core basically.This conductive core forms the protection conductor, and this protection conductor makes electric current can pass through this safety guard 20.Being arranged in this safety guard this protection conductor of 20 is arranged to be electrically coupled to power supply to short-circuit detecting system (not shown) via one or more insulated cables 24.
In said embodiment, this safety guard 20 is arranged to form this anode of conducting metal spiral winding and contacts with negative electrode to prevent this anode 1014.Yet this safety guard 20 comprises single protection conductor in said embodiment simultaneously, and this safety guard 20 can comprise a plurality of protection conductors in other embodiments.Comprise under the situation of a plurality of protection conductors that at this safety guard 20 this protection conductor can be arranged to cage structure to seal the part of this anode 1014.This cage structure can comprise one or more interconnective elements, and this element can be for example plastics of electrically insulating material, and perhaps this element can comprise the protection conductor with insulating coating in certain embodiments.In another embodiment, this protection conductor can be the part that perforated tube, netted pipe etc. are arranged to seal basically this anode 1014.To recognize that this cage structure and porous protection conductor allows ionogen to be present in the space between the through hole of element or formation of this safety guard, thereby allows ion to carry between this anode 1014 and negative electrode with electrolyte solution.
In said embodiment, this safety guard 20 is fixing with respect to this anode 1014 through support 14a and 14b, and this support 14a and 14b fix basically maybe can be fixed on a position on this anode 1014.This support 14a and 14b are connected to this safety guard 20 and are in the fixed position with respect to this anode 1014 basically to keep this safety guard 20.In this embodiment, this support 14a and 14b comprise insulating material, such as plastics, and PVC for example.This support 14a and 14b can fix or can be fixed to this anode 1014, are in the position of basic fixed on this anode 1014 through the collaborative mode that forms surface profile, mechanical means such as screw or any other suitable stationary installation of interlocking to keep this support 14a and 14b.Safety guard has also reduced in the short range from this anode 1014 maybe from what contact the turning/edge of this anode to the negative electrode.This short range from this anode to this safety guard use on each end of anode pillar and along the additional struts together support of anode length direction (hardness that depends on anodic length and safety guard material for demand) along the additional struts of anode length direction.In the embodiment shown, the shape of this support 14a and 14b is to have the rectangular parallelepiped that is arranged to the endoporus that holds a part of anode 1014.In other embodiment, support can be by applying that thermal source dwindles and fixing itself processing to the material of anode 1014.The advantage that is fixed to by this way on the anode 1014 when support is that this support comprises the material with reasonable frictional coefficient, to reduce the possibility that this support slides with respect to anode 1014.The handle 12 that this anode 1014 can provide electrically insulating material to form, this handle in use allows the user to control this shielded anode 10 simultaneously.This handle 12 also can support this safety guard 20.
Though support 14a and 14b are provided in the embodiment shown, this shielded anode 10 can comprise that also other suitable being used to keep this safety guard 20 basically in the mode with respect to the fixed position of this anode 1014 in other embodiments.In another embodiment, this safety guard can with this anode 1014 couplet that is closely related, for example be wrapped on the anode 1014 and and keep insulation through insulating coating.In another embodiment, this safety guard 20 can be arranged to screw down or be bonded on the anode 1014 perhaps attached through other suitable stationary installations.
With reference to Fig. 6, electroplanting device 50 according to an embodiment of the invention is shown.This device 50 comprises the shielded anode 10 according to embodiments of the invention, and this scheme is used for electroplating cathode 1008.This shielded anode 10 and negative electrode 1008 are arranged in the coating bath of electrolytic solution (not shown).This device also comprises power supply 34 and testing circuit 36, the protection conductor of the side safety guard 20 that this testing circuit 36 is used for detecting and the anode 1014 of opposite side and/or the short-circuit current between the negative electrode 1008.The anode 1014 of this shielded anode 10 is connected to the positive terminal 34a of power supply 34 via electrical isolation wire 1011.Negative electrode 1008 is connected to the negative pole end 34b of power supply 34 via electrical isolation wire 1013.
In this embodiment, the positive terminal 34a of power supply and the potential difference between the negative pole end 34b are 6VDC, although should be realized that, depend on that treating processes can use other voltage.When being short-circuited between the anode 1014 of protection conductor in the safety guard 20 of a side and opposite side and/or the negative electrode 1008 or during near short circuit, safety guard 20 is parts of open circuit.Testing circuit is arranged to detect short circuit or carries out output near the existence of short circuit current and based on this detection, the warning signal that produces such as 34 the power supply and/or cause of cutting off the electricity supply.This testing circuit 36 is arranged to detect the short circuit that takes place between protection conductor and anode 1014 or the negative electrode 1008 or near short circuit current; Guarantee simultaneously in detection, not have remarkable electric current through this protection conductor (for example, flow through the electric current of safety guard be limited in several milliamperes) thus restriction produces the possibility damaged is taken place for example negative electrode 1008.
With reference to Fig. 7, testing circuit 36 according to an embodiment of the invention is shown.This testing circuit 36 is realized as a common unit 34/36 with power supply 34.In this example, this shielded anode 10 is connected to power supply 34 with negative electrode 1008, as said with reference to Fig. 6, between them is the voltage of 6VDC to provide in this example.This safety guard 20 is coupled to the positive terminal of this power supply and is connected to the cathode terminal of this power supply through resistance R 2 through resistance R 1.Should select enough big value for R1 and R2, under the full voltage of power supply 34, have only for example 5mA one of resistance of can flowing through of very little electric current like this.To recognize that the resistance R 1 that wherein is connected with safety guard is configured to form voltage-divider with R2 in circuit.Likewise, the value of usually preferred R1 equals the value of R2, and safety guard 20 possibly have magnitude of voltage half the between this anode 1014 and the negative electrode 1008 like this.
Voltage-level detector V1 is parallelly connected with R1 to be arranged between safety guard 20 and the anode 1014, can measure the voltage with respect to this protection conductor of anode 1014 like this.Voltage-level detector V2 is parallelly connected with R2 to be arranged between safety guard 20 and the negative electrode 1008, can measure the voltage with respect to this protection conductor of negative electrode 1008 like this.When protection conductor voltage can be confirmed short-circuit current during near the voltage of one of anode 1014 or negative electrode 1008 or near short-circuit current.In this example, the voltage difference between anode 1014 and the negative electrode 1008 is 6V, this means if the voltage difference that the value of R1 and R2 exists between safety guard 20 and the anode 1014 when basic identical is 3V.Likewise, the voltage difference that exists between safety guard 20 and the negative electrode 1008 is 3V.Voltage-level detector V1 and V2 are set at 2.5V.If voltage-level detector V1 detects it and measures the voltage difference (promptly being coupled to the line and the line that is coupled to the protection conductor of safety guard 20 of anode 1014) between the node, this will cause trip condition.Voltage-level detector V2 between safety guard 20 and the negative electrode 1008 provides same function.Illustrated embodiment also comprises with the tertiary voltage detector V3 of resistance R 1 and the parallelly connected setting of R2 and is arranged to measure the voltage of anode to negative electrode.Can use the voltage-level detector of other values.In certain embodiments, this detector can have variable a setting point, and this a setting point is adjusted according to the output voltage of RF automatically.Therefore, because the adjustment of output voltage, this voltage-level detector can be adjusted to desired value automatically.Supervisory circuit can replace or the one or more circuit conditions of extra monitoring except that voltage, for example electric current and/or resistance in certain embodiments.This supervisory circuit can comprise the detector and its combination of any amount.It will be apparent to those skilled in the art that many suitable monitoring devices be used to detect on the side protection conductor and the short circuit between the anode on negative electrode and/or the opposite side or near short circuit.
Voltage-level detector V1 to V3 is power supply 34 relay RV1 to RV3 respectively in power control circuit.Relay R V1 to the RV3 setting of connecting is if this power supply 34 is in "off" state when any is for " opening " like this.When if each of RV1 to RV3 is " pass ", at this moment power supply 34 is in "open" state.In certain embodiments; Voltage-level detector V3 and the relay R V3 that is associated are not included in this testing circuit 36; And have only among voltage-level detector V1 and the V2 (and the rly. that is associated) in other embodiments, this depends on the type of the short circuit that testing circuit 36 is arranged to detect.Should be pointed out that to comprise the timer overload circuit in this example, because this DC power supply 34 also can be as the voltage source of protection conductor in the safety guard 20.This timer is set to an approximate time, for example 2 seconds, reaches required a setting point to allow DC power supply 34.In this times prior, this timer will stop voltage-level detector in order to avoid trip condition, and this can cause power supply 34 to be closed.Other configurations possibly not need timer.
As stated, comprise that in this example optional voltage-level detector V3 and the relay R V3 that is associated are used to measure the voltage of anode to negative electrode.This DC power supply 34 comprises the rapid reaction current limit circuit, and this circuit causes the output voltage decline of DC power supply 34 if supply current reaches a setting point.To recognize that this current setpoint can be by the surface-area of negative electrode decision and can be for handling suitable value for this arbitrarily, should be noted that the capacity of taking the DC power supply into account and the current-carrying capacity of anode, negative electrode and cable.Through measuring the voltage between anode and the negative electrode, if brownout is lower than 5V in this example, this is illustrated in and has short circuit between anode and the negative electrode or near short circuit, will cause trip condition.In certain embodiments, tripping operation possibly make the locking (not shown), and this will allow via the reason of lamp indication as tripping operation.
In use shielded anode 10 can be used for the area of " finishing " negative electrode 1008, for example, and not satisfied area in the coating material.Shielded anode 10 can be controlled in electrolytic solution near the zone that needs parcel plating.Relate to plating in this example, make ion flow and deposit on the negative electrode 1008 from anode 1014 through DC power supply 34 power supply.If the user does not note this negative electrode 1008 is touched this shielded anode 10,, this safety guard 20 prevents to produce electric arc with infringement negative electrode object 1008 possibilities thereby can preventing that anode 1014 from contacting with negative electrode 1008.
Expose part protection conductor if the contact between safety guard 20 and the negative electrode 1008 has damaged insulating coating 12, protection conductor 16 that then exposes and the contact between the negative electrode 1008 will cause producing between them " controlled conduction ".Yet, testing circuit being set making controlled conduction that the electric current of several milliamperes (mA) is provided, this electric current can not burn out or damage negative electrode 1008.
In the embodiment shown, be that shutdown signal is to close DC power supply 34 in response to the output that detects short circuit or provide by testing circuit 36 near short circuit.Cutting off the electricity supply to the effect of the RF of anode 1014 is to remind insulating coating 12 on user's safety guard 20 damaged and thereby need this safety guard of replacement.Therefore protect conductor to be arranged to preventing safety guard 20 overwear vt.s as " fault secure case ", and then in case when being short-circuited, cause allowing anode 1004 contact negative electrodes 1008 through allowing the little electric current protection conductor of flowing through, this triggers output.In other embodiments, output maybe or comprise further that some other mode indicates safety guard 20 damaged, for example audible alarm or the like.
Be suitable for various electrolysis treatment according to the safety guard of the embodiment of the invention, the electrode and the electrolytic processing apparatus of protection; Painted such as plating, anodic oxidation, etching, the clean electropolishing of electricity, electrophoresis and electricity; And be particularly suitable for the electroplating system of high-value items; This high-value items maybe be easily owing to the electric arc that produces between supplementary anode and the negative electrode damages, such as the part of aircraft.When this electrolytic processing apparatus is electroplanting device, safety guard preferably is installed and barrier is provided around the anode, because this anode is as " rod " of electroplating cathode from different directions, and generally be less that in the two.When electrolytic processing apparatus is anodic oxidation device, safety guard preferably is installed and barrier is provided around negative electrode.
Claims (19)
1. electrolytic processing apparatus; Comprise the safety guard that is arranged to the voltage source that is electrically coupled to first and second electrodes, the testing circuit that is electrically coupled to said voltage source and barrier is provided between said first and second electrodes; Said safety guard is arranged in the ionogen that allows between the electrode and passes through electric current; It is characterized in that; Said safety guard comprises the protection conductor that is arranged to said electrode electrical isolation, and said protection conductor is electrically coupled to said testing circuit, makes said testing circuit can detect between the said electrode of said protection conductor and opposite side of a side and has current path.
2. electrolytic processing apparatus according to claim 1 is characterized in that, said testing circuit detects and exists said current path promptly to send signal, carries out the operation of cutting off said power supply.
3. according to claim 1 or 2 each described electrolytic processing apparatus, it is characterized in that said testing circuit comprises first detector, be arranged to the difference of the electrical characteristic between the said safety guard of monitoring and first electrode.
4. according to each described electrolytic processing apparatus of claim 1-3, it is characterized in that said testing circuit comprises second detector, be used to monitor the difference of the electrical characteristic between the said safety guard and second electrode.
5. according to each described electrolytic processing apparatus of claim 1-4, it is characterized in that said testing circuit comprises the 3rd detector, be used for the difference of the electrical characteristic between the monitoring electrode.
6. according to each described electrolytic processing apparatus of claim 3-5; It is characterized in that; Said testing circuit comprises and the voltage-level detector associated switch; Said voltage-level detector is arranged to produce and is used for surpassing the signal that predetermined threshold is opened switch in response to the voltage difference of being monitored, in case feasible switch open, said voltage source is closed.
7. according to the described electrolytic processing apparatus of aforementioned each claim, it is characterized in that said safety guard comprises the insulating coating that provides on all surface those surfaces with said supervisory circuit electric coupling that is arranged on said protection conductor.
8. according to the described electrolytic processing apparatus of aforementioned each claim, it is characterized in that said safety guard is arranged to the part of said first electrode of sealing.
9. according to the described electrolytic processing apparatus of aforementioned each claim, it is characterized in that said protection conductor disc is around said first electrode.
10. according to the described electrolytic processing apparatus of aforementioned each claim, it is characterized in that said safety guard comprises and is arranged to the fixing insulating support that said conductor and said first electrode are separated.
11., it is characterized in that the electrical characteristic of said testing circuit are meant one or more of voltage, resistance or electric current according to each described electrolytic processing apparatus of claim 3-5.
12. according to the described electrolytic processing apparatus of aforementioned each claim, it is characterized in that said testing circuit comprises one or more a setting points, said a setting point is a fixed value or according to power supply output adjustment automatically.
13. be used for is the safety guard that barrier is provided between first and second electrodes according to each described electrolytic processing apparatus of claim 1-12; Said safety guard allows in the ionogen between the electrode through electric current, it is characterized in that said safety guard comprises the protection conductor with said electrode electrical isolation.
14. safety guard according to claim 13 is characterized in that, said safety guard comprises the insulating coating that provides on all surface those surfaces with the supervisory circuit electric coupling that is arranged on said protection conductor.
15., it is characterized in that said safety guard is arranged to the part of said first electrode of sealing according to claim 13 or 14 described safety guards.
16., it is characterized in that said protection conductor disc is around said first electrode according to the arbitrary described safety guard of claim 13-15.
17., it is characterized in that said safety guard comprises and is arranged to fixing your insulating support that separates of said conductor and said first electrode altogether of just liking according to the arbitrary described safety guard of claim 13-16.
18. basically with reference to Fig. 6-7 at electrolytic processing apparatus described herein.
19. basically with reference to Fig. 4-7 at safety guard described herein.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0916253A GB2473617A (en) | 2009-09-16 | 2009-09-16 | A guard for electrolytic apparatus |
| GB0916253.8 | 2009-09-16 | ||
| PCT/GB2010/051552 WO2011033303A2 (en) | 2009-09-16 | 2010-09-16 | Electrolytic process apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102597333A true CN102597333A (en) | 2012-07-18 |
Family
ID=41277808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800413254A Pending CN102597333A (en) | 2009-09-16 | 2010-09-16 | Electrolytic process apparatus |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20120175246A1 (en) |
| EP (1) | EP2478133A2 (en) |
| CN (1) | CN102597333A (en) |
| GB (1) | GB2473617A (en) |
| WO (1) | WO2011033303A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106947996A (en) * | 2017-03-09 | 2017-07-14 | 中国航发北京航空材料研究院 | A kind of Titanium Electroplating cadmium impressed current anode and its application method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101664540B1 (en) * | 2014-04-02 | 2016-10-25 | 오씨아이 주식회사 | Electrolytic plating electrode and plating apparatus comprising thereof |
| US9945045B2 (en) * | 2015-12-02 | 2018-04-17 | Ashwin-Ushas Corporation, Inc. | Electrochemical deposition apparatus and methods of using the same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5195942A (en) * | 1975-02-20 | 1976-08-23 | TEIDENRYUMITSUDOMETSUKI SOCHI | |
| JPH05195942A (en) * | 1992-01-16 | 1993-08-06 | Fuji Electric Co Ltd | Rotor support bearing for straight-flow type water turbine |
| US6103076A (en) * | 1997-04-30 | 2000-08-15 | Daiwa Excel Co., Ltd. | Auxiliary anode element suitable for use in electroplating a bent tubular workpiece |
| CN1188088C (en) * | 1998-10-02 | 2005-02-09 | 威兰牙科技术有限责任两合公司 | Method for producing prosthetic moulded parts for dental use and prosthetic moulded part |
| KR20050063446A (en) * | 2003-12-22 | 2005-06-28 | 재단법인 포항산업과학연구원 | Method of uniform film metal layer formation using electroplating |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3332863A (en) * | 1962-12-03 | 1967-07-25 | Gen Motors Corp | Electromachining method and apparatus utilizing a control for sensing current differentials between electrode segments |
| US3723268A (en) * | 1967-12-21 | 1973-03-27 | Prod Eng Res Ass | Electrochemical machining |
| US3902983A (en) * | 1974-01-07 | 1975-09-02 | Olin Corp | Method and apparatus for preventing voltage extremes in an electrolytic cell having automatic adjusting of the anode-cathode spacing |
| US6582570B2 (en) * | 2001-02-06 | 2003-06-24 | Danny Wu | Electroplating apparatus for wheel disk |
| US6746578B2 (en) * | 2001-05-31 | 2004-06-08 | International Business Machines Corporation | Selective shield/material flow mechanism |
| US7175752B2 (en) * | 2002-05-24 | 2007-02-13 | Federal-Mogul Worldwide, Inc. | Method and apparatus for electrochemical machining |
-
2009
- 2009-09-16 GB GB0916253A patent/GB2473617A/en not_active Withdrawn
-
2010
- 2010-09-16 US US13/395,650 patent/US20120175246A1/en not_active Abandoned
- 2010-09-16 EP EP10766098A patent/EP2478133A2/en not_active Withdrawn
- 2010-09-16 WO PCT/GB2010/051552 patent/WO2011033303A2/en active Application Filing
- 2010-09-16 CN CN2010800413254A patent/CN102597333A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5195942A (en) * | 1975-02-20 | 1976-08-23 | TEIDENRYUMITSUDOMETSUKI SOCHI | |
| JPH05195942A (en) * | 1992-01-16 | 1993-08-06 | Fuji Electric Co Ltd | Rotor support bearing for straight-flow type water turbine |
| US6103076A (en) * | 1997-04-30 | 2000-08-15 | Daiwa Excel Co., Ltd. | Auxiliary anode element suitable for use in electroplating a bent tubular workpiece |
| CN1188088C (en) * | 1998-10-02 | 2005-02-09 | 威兰牙科技术有限责任两合公司 | Method for producing prosthetic moulded parts for dental use and prosthetic moulded part |
| KR20050063446A (en) * | 2003-12-22 | 2005-06-28 | 재단법인 포항산업과학연구원 | Method of uniform film metal layer formation using electroplating |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106947996A (en) * | 2017-03-09 | 2017-07-14 | 中国航发北京航空材料研究院 | A kind of Titanium Electroplating cadmium impressed current anode and its application method |
| CN106947996B (en) * | 2017-03-09 | 2019-06-28 | 中国航发北京航空材料研究院 | A kind of Titanium Electroplating cadmium impressed current anode and its application method |
Also Published As
| Publication number | Publication date |
|---|---|
| US20120175246A1 (en) | 2012-07-12 |
| GB2473617A (en) | 2011-03-23 |
| GB0916253D0 (en) | 2009-10-28 |
| WO2011033303A2 (en) | 2011-03-24 |
| EP2478133A2 (en) | 2012-07-25 |
| WO2011033303A3 (en) | 2012-01-26 |
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Application publication date: 20120718 |