CN103088399A - Multi-step electrochemical metal coat removal method - Google Patents
Multi-step electrochemical metal coat removal method Download PDFInfo
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- CN103088399A CN103088399A CN2011103371993A CN201110337199A CN103088399A CN 103088399 A CN103088399 A CN 103088399A CN 2011103371993 A CN2011103371993 A CN 2011103371993A CN 201110337199 A CN201110337199 A CN 201110337199A CN 103088399 A CN103088399 A CN 103088399A
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- electrolytic solution
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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
- C25F5/00—Electrolytic stripping of metallic layers or coatings
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
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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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- 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
- C25F7/02—Regeneration of process liquids
Abstract
The invention relates to a multi-step electrochemical metal coat removal method used for removing the coat of a part. The method comprises the following steps: 1, applying a preset potential between a reference electrode and the part, and immersing the reference electrode and the part in an electrolyte; 2, recording the peak current flowing through the part; 3, stopping applying the potential to the part when the current flowing through the part decreases to a first preset current value after the peak value; 4, replacing the electrolyte; 5, applying the preset potential between the reference electrode and the part again, maintaining for a preset period of time, stopping applying the potential to the part, judging whether the current flowing through the part is less than a second preset current value within the preset period of time, and returning to step 4 if the current flowing through the part is not less than the second preset current value; and 5, stopping applying the potential to the part if the current flowing through the part is less than the second preset current value, wherein the first preset current value is greater than the second preset current value.
Description
Technical field
The present invention relates to a kind of method of metallic coating of removing from part with electrochemical means.
Background technology
For the reasons such as protection to part, plate the layer of metal coating at piece surface sometimes, for example generally all can be coated with the layer of metal coating on the blade of turbine.And when the part that is coated with metallic coating after using after a while, tend to occur damage to a certain degree, so the metallic coating that damages need to be got rid of, in order to can plate new metallic coating.
At present, electrochemistry goes coating process to be used to carry out the removal of part metallic coating.Please refer to Fig. 1, remove the schematic diagram of coat system 1 for a kind of existing electrochemistry, this system 1 comprises that one is equipped with container 2, a cathode assembly 4 and a direct current power supply 5 of electrolytic solution 3.When the part 6 of using 1 pair of this system and be coated with metallic coating removes coating operation, immerse in this electrolytic solution 3 after this cathode assembly 4 being electrically connected to the negative pole of this direct supply 5, immerse in this electrolytic solution 3 after this part 6 is electrically connected to this direct supply 5 anodal as anode component.Then, start this direct supply 5 and make formation one loop between this cathode assembly 4 and this part 6, so the metallic coating on part 6 can be got rid of.
To use step (or once) electrochemistry to operate to carry out the removal of metallic coating on said system 1 is common, this often can not all get rid of metallic coating accurately from part 6, but destroyed to a certain extent the substrate material of part 6 own after perhaps all getting rid of, thereby make follow-up reparation have flaw, even part 6 can't continue to use.
So, need to provide a kind of new electrochemistry to go coating process to solve the problems referred to above.
Summary of the invention
Conclude one or more aspects of the present invention now so that basic comprehension of the present invention, wherein this conclusion is not extensive overview of the present invention, and is not to be intended to identify some key element of the present invention, is not to be intended to mark its scope yet.On the contrary, the main purpose of this conclusion is to present hereinafter more detailed description to present concepts more of the present invention with reduced form before.
One aspect of the present invention is to provide a kind of multi-step electrochemistry to go the metallic coating method, is used for a part is removed coating operation, and the method comprises:
(a): a default electromotive force is provided between a reference electrode and this part, and this reference electrode and this part immerse in an electrolytic solution;
(b): recorded stream is through the peak point current of this part;
(c): when the electric current of this part of flowing through drops to one first predetermined current value after peak value, stop providing voltage to this part;
(d): upgrade this electrolytic solution;
(e): this default electromotive force is provided between this reference electrode and this part again, and keep again stopping providing voltage to this part after a Preset Time, judge that in this Preset Time whether the electric current of this part of flowing through is less than one second predetermined current value, if be not less than this second predetermined current value, return to steps d; And
(f): if less than this second predetermined current value, stop providing voltage to this part, wherein this first predetermined current value is greater than this second predetermined current value.
Go the metallic coating method by using multi-step electrochemistry of the present invention, the degree of each one-step electrochemistry operation can be effectively controlled and the time that the metallic coating operation is completed can be controlled accurately, so, greatly improve the precision of removing coating operation, guaranteed the quality of product.
Description of drawings
Be described for embodiments of the present invention in conjunction with the drawings, the present invention may be better understood, in the accompanying drawings:
Fig. 1 is the schematic diagram that a kind of existing electrochemistry is removed metallic coating system.
Fig. 2 goes the electrochemistry of metallic coating method to remove the schematic diagram of the better embodiment of metallic coating system for using multi-step electrochemistry of the present invention.
Fig. 3 goes the electrochemistry of metallic coating method to remove the schematic diagram of another better embodiment of metallic coating system for using multi-step electrochemistry of the present invention.
Fig. 4 is the module diagram that in Fig. 2, electrochemistry is gone the better embodiment of pilot circuit in metallic coating system.
Fig. 5 is that multi-step electrochemistry of the present invention is removed the schema of the better embodiment of metallic coating method.
Fig. 6 treats the metallic coating of decoating part and substrate material corresponding current density and this part and the function relation figure of inter-electrode voltage between poor in electrolytic solution.
Fig. 7 goes the metallic coating method to remove the comparison schematic diagram of the turbine vane after metallic coating for using existing single stage electrochemistry and go the metallic coating method and use multi-step electrochemistry of the present invention.
Embodiment
Below will describe the specific embodiment of the present invention, and it is pointed out that in the specific descriptions process of these embodiments, in order to carry out brief and concise description, this specification sheets can not all be done detailed description to all features of the embodiment of reality.Should be understandable that; in the actual implementation process of any one embodiment; as in the process of any one engineering project or design item; in order to realize developer's objectives; in order to satisfy restriction System Dependent or that business is correlated with; usually can make various concrete decision-makings, and this can change to another kind of embodiment from a kind of embodiment also.In addition, it will also be appreciated that, although the effort of having done in this performance history may be complicated and tediously long, yet for those of ordinary skill in the art relevant to content disclosed by the invention, some designs of carrying out on the basis of the technology contents that the disclosure discloses, make or production etc. changed just conventional technique means, not should be understood to content of the present disclosure insufficient.
Unless separately define, the technical term that uses in claims and specification sheets or scientific terminology should be the ordinary meaning that the personage that has general technical ability in the technical field of the invention understands." first " of using in patent application specification of the present invention and claims, " second " and similar word do not represent any order, quantity or importance, and just are used for distinguishing different integral parts." one " or similar words such as " one " do not represent quantity limitation, and mean and have at least one." comprise " or " comprising " etc. similarly word mean to appear at the element of " comprising " or " comprising " front or object and contain and appear at element or object and the equivalent element thereof that " comprising " or " comprising " enumerate later, do not get rid of other elements or object." connection " or " being connected " etc. similarly word be not to be defined in connection physics or machinery, but can comprise electric connection, no matter be directly or indirectly.
Please refer to Fig. 2, go a kind of electrochemistry of metallic coating method to remove the schematic diagram of the better embodiment of metallic coating system 10 for using multi-step electrochemistry of the present invention, this electrochemistry goes metallic coating system 10 to comprise part 60 and a reference electrode 70 of a container 20 that electrolytic solution 30 is housed, an electrode 40, a pilot circuit 50, a coating to be gone.Wherein, this electrode 40 can be used as negative electrode and uses, and this part 60 correspondence uses as anode.In other embodiments, this electrode 40 also can be used as anode and uses, and this part 60 correspondence uses as negative electrode.This reference electrode 70 is used for providing a reference voltage, for example by receiving the external power source (not shown).
When this part 60 is removed coating operation, this electrode 40, part 60 and reference electrode 70 be dipped in this electrolytic solution 30 and with these pilot circuit 50 electrical couplings, this pilot circuit 50 is by being positioned at a voltage range of presetting at the electromotive force that provides a groove to press (cell voltage) to control between this part 60 and reference electrode 70 between this electrode 40 and this part 60.So, set up the electric field of an expectation between this electrode 40 and part 60, etched away with the metallic coating with this part 60 surfaces, this electrode 40 and reference electrode parts 70 are generally that self can not damage the device that can keep integrity in removing coating procedure.
Only provide an electrode 40 in embodiment shown in Figure 2, in other embodiments, can also comprise mating parts 60 work simultaneously of a plurality of electrodes 40, to increase work efficiency.This electrode 40 can be any suitable shape, forms the electric fields that are fit to mating parts 60, can be for example plate, cylindrical etc.This container 20 is any suitable non-reaction vessel, and the shape of this container 20, the equal capable of regulating of volume are in order to can place preferably this electrolytic solution 30, this electrode 40, this part 60, this reference electrode 70 etc.
In infinite embodiment, this electrolytic solution 30 is halide salt aqueous solution.This electrolytic solution 30 can be directly to pour in this container 20, also can insert by other means.For example, please refer to Fig. 3, this electrolytic solution 30 can be inserted this container 20 by pump equipment 90, in this embodiment, also comprises an electrolysis liquid pool 21, and it can hold abundant electrolytic solution 31, and this electrolytic solution 31 is identical with this electrolytic solution 30.Particularly, this pump equipment 90 extracts electrolytic solution 31 by water pipe 55 from this electrolysis liquid pool 21, then passes through water pipe 56 to the interior injection electrolytic solution 31 of container 20.Simultaneously, electrolytic solution 31 in this container 20 is also by water pipe 57 injection electrolytic solution 30 (can by controls such as existing by-pass valve controls) in the electrolysis liquid pool 21, so formed a circulation of elecrolyte, the benefit of doing like this can be accelerated the renewal of electrolytic solution, improves electrolytic efficiency.In a non-limiting embodiment, the cycle rate of this circulation of elecrolyte is probably 100ml/min-800ml/min.
Please refer to Fig. 4, the better embodiment of this pilot circuit 50 comprises that a controller 51, is connected on the current sensor 54 between this second voltage regulator 53 and this part 60 with the first voltage adjuster 52, a second voltage regulator 53, that is connected with these part 60 surface electrical behavior that this electrode 40 is electrical connected.This first voltage adjuster 52 is used for adjusting the voltage of electrode 40 under the control of controller 51, this second voltage regulator 53 is used for adjusting the voltage on part 60 surfaces under the control of controller 51.This current sensor 54 is used for senses flow through the current signal of this part 60, and whole remove coating operation in this current signal received by this controller 51 all the time.This controller 51 also receives the reference voltage on this reference electrode 70.This controller 51 can be selected any suitable programmable device, such as microcontroller etc.This first voltage adjuster 52 and second voltage regulator 53 can be any suitable Circnit Layouts, as long as satisfy and can adjust voltage according to control signal, such as transformer etc.This first voltage adjuster 52 and second voltage regulator 53 also can be integrated into an independent voltage regulator.In other embodiments, this electrode 40 also can receive fixing magnitude of voltage (for example ground connection), thereby can omit this first voltage adjuster 52.
Please refer to Fig. 5, for multi-step electrochemistry of the present invention is removed the schema of the better embodiment of metallic coating method.This electrochemistry go metallic coating system 10 use multi-step electrochemistry of the present invention go the metallic coating method can obtain than use one step go the metallic coating method better remove coating result.In this multi-step electrochemistry is gone the metallic coating process, much go coating parameter also to determine to go coating result.For example, these go coating parameter can comprise the distance between characteristic, electrode 40 and the part 60 of material, electrolytic solution 30 of electromotive force between shape, reference electrode 70 and the part 60 of electrode 40 and reference electrode 70, reference electrode 70, temperature of electrolytic solution 30 etc.These go coating parameter to adjust in operating restraint, for example, electromotive force between this reference electrode 70 and part 60 can be adjusted to 30 volts from the zero volt spy, distance between this electrode 40 and part 60 can be adjusted to 10 inches from 0.1 inch, the temperature of this electrolytic solution 30 can be adjusted to 60 degrees centigrade from 20 degrees centigrade, etc.
In one embodiment, this part 60 can be a turbine vane, and on this turbine vane, the material of metallic coating comprises platinum aluminium alloy (platinum aluminide, PtAl), and the substrate material of this turbine vane comprises nickel-base alloy.In other embodiments, this part 60 also can be selected other materials, and for example metallic coating can also comprise aluminium, alumel, platinum alumel, perhaps their combination, and this substrate material can also comprise cobalt base alloy and ferrous alloy etc.
The component that the component of this electrolytic solution 30 (charge-carrying components) can select following table to list, the solvent of this electrolytic solution 30 (solvent) can be selected distilled water (distilled water) or non-distilled water (tap water).
Wherein, the component of this electrolytic solution 30 comprises three groups A, B, C, and each group is chosen at least one composition from its Groups List.In one embodiment; this A forms minute (as alkali salt) and is used for realizing substantially going the coating operation function; this B forms the homogeneity that minute (as ammonium salt) is used for improving the ion transport ability and then improves ionic concn when removing coating operation; this C forms minute (as acid) and is used for providing a sour environment (for example PH＜1.5); to obtain a better selectivity, " selectivity " here refers to that this removes coating operation is the ability of removing metallic coating and protection substrate material.
In one embodiment, the component of this electrolytic solution 30 can be chosen the ammonium chloride (B forms and divides) of the sodium-chlor that concentration is 3wt% (the A composition divides), 5wt%, the phosphoric acid (C forms and divides) of 3wt%.The solvent of this electrolytic solution 30 can be chosen distilled water.The pH value of this electrolytic solution 30 is controlled at 0.8 left and right, and the temperature of this electrolytic solution is controlled at 30 ℃ ± 3 ℃, controls the cycle rate of electrolytic solution 30 by pump equipment 90 in the 400ml/min left and right.
Particularly, in step S1, these controller 51 output control signals give this first voltage regulator 52 and this second voltage setter 53 to be positioned at a default voltage range at the electromotive force that provides a groove to press to control between this part 60 and reference electrode 70 between this electrode 40 and this part 60.Electromotive force between this part 60 and reference electrode 70 is an important coating parameter that goes, it by experiment data determine.For example, Fig. 6 has illustrated metallic coating and the current density at substrate material place and the function relation figure between the electromotive force between this part 60 and reference electrode 70 of part 60, need to prove, the experimental data of Fig. 6 is made under the Ag/AgCl material at this reference electrode 70.In other embodiments, the material of this reference electrode 70 also can be selected other materials, for example standard hydrogen electrode (standard hydrogen electrode, SHE) or saturated calomel electrode (saturated calomel electrode, SCE) etc.In Fig. 6, a selection window is chosen separately, and the difference of the current density at the metallic coating of the part 60 that this selection window is represented and substrate material place is maximum, that is to say that coating result is best.So, a default potential range is selected, and for example 0.05V-0.3V, also can select concrete default potential value, for example a 0.2V in addition.
In step S2, this controller 51 records the peak value of the electric current that this current sensor 54 senses.Specifically, in case after going coating operation to start, the electric current that this current sensor 54 is sensed will increase gradually until arrive peak point current, then reduce gradually.So, this controller 51 can record according to above-mentioned current characteristics the peak point current of this electric current.
In step S3, when this controller 51 detects the electric current of these current sensor 54 inductions when peak value drops to one first predetermined current value later, these controller 51 output one control commands are to this first and second voltage regulator 52 and 53, to stop output voltage to this electrode 40 and this part 60, namely interrupt going coating operation.In one embodiment, this first predetermined current value can be a range of current, for example 20%-90% of peak point current.In embodiment more specifically, this first predetermined current value can be 40% ± 5% of peak point current.
In step S4, upgrade this electrolytic solution 30, that is to say to make the ionic concn on part 60 surfaces return to original state.For example, upgrade this electrolytic solution 30 and can remove coating operation certain hour (as 30 minutes) by interruption, so that himself returns to original state.In order to accelerate renewal speed, also can use the pump equipment 90 as Fig. 4 to transmit electrolytic solution 31 to container 20.In one embodiment, the cycle rate of these pump equipment 90 control electrolytic solution is approximately 400ml/min, about 5 minutes of update time.
In step S5, this controller 51 output control signals give this first voltage regulator 52 and this second voltage setter 53 being positioned at the electromotive force that provides a groove to press to control between this part 60 and reference electrode 70 between this electrode 40 and this part 60 voltage range (namely restarting coating operation) that this is preset, and keep after a Preset Time interruption again to remove coating operation.Simultaneously, whether the electric current that this controller 51 judges these current sensor 54 sensings in this Preset Time is less than one second predeterminated voltage value, if less than this second predeterminated voltage value, whole coating operation is completed.If be not less than this second predeterminated voltage value, return to step S4.This second predetermined current value is less than this first predetermined current value, and in one embodiment, this second predetermined current value is approximately 10% of peak point current, and in other embodiment, this second predetermined current value can be also fixed value, for example a 0.002A.
Please refer to Fig. 7, go the metallic coating method and use multi-step electrochemistry of the present invention and go the metallic coating method to carry out comparison schematic diagram after metallic coating is removed to a turbine vane for using existing single stage electrochemistry, respectively with label 100 and 200 expressions.Can significantly find out, using existing single stage electrochemistry goes to the surface of the turbine vane 100 that the metallic coating method obtains to have obvious metallic coating residual 150, go to the surface of the turbine vane 200 that the metallic coating method obtains very smooth and use multi-step electrochemistry of the present invention, obviously be better than the coating result that goes that single stage electrochemistry is gone the metallic coating method.
Although describe the present invention in conjunction with specific embodiment, those skilled in the art will appreciate that and to make many modifications and modification to the present invention.Therefore, recognize, the intention of claims is to cover all such modifications and the modification in true spirit of the present invention and scope.
Claims (12)
1. a multi-step electrochemistry is gone the metallic coating method, is used for a part is removed coating operation, it is characterized in that, the method comprises:
(a): a default electromotive force is provided between a reference electrode and this part, and this reference electrode and this part immerse in an electrolytic solution;
(b): recorded stream is through the peak point current of this part;
(c): when the electric current of this part of flowing through drops to one first predetermined current value after peak value, stop providing voltage to this part;
(d): upgrade this electrolytic solution;
(e): this default electromotive force is provided between this reference electrode and this part again, and keep again stopping providing voltage to this part after a Preset Time, judge that in this Preset Time whether the electric current of this part of flowing through is less than one second predetermined current value, if be not less than this second predetermined current value, return to steps d; And
(f): if less than this second predetermined current value, stop providing voltage to this part, wherein this first predetermined current value is greater than this second predetermined current value.
2. the method for claim 1, wherein this electrolytic solution comprises the component that is dissolved in solvent, and this solvent is water, and this component comprises first to the 3rd group, and this first group comprises alkali salt, and this second group comprises ammonium salt, and the 3rd group comprises acid.
3. method as claimed in claim 2, wherein this first group is selected from following one or combination: sodium-chlor, Repone K, Sodium Bromide and Potassium Bromide; This second group is selected from following one or combination: ammonium chloride and ammonium nitrate; The 3rd group is selected from following one or combination: hydrochloric acid, sulfuric acid, nitric acid and phosphoric acid.
4. method as claimed in claim 3, this first group of sodium-chlor that is selected from following one or combination: 0-10wt% wherein, the Repone K of 0-10wt%, the Sodium Bromide of 0-10wt%, the Potassium Bromide of 0-10wt% and the SODIUMNITRATE of 3%-15wt%; This second group is selected from the ammonium chloride of following one or combination: 0-10wt% and the ammonium nitrate of 0-10wt%; The 3rd group of hydrochloric acid that is selected from following one or combination: 0-10wt%, the sulfuric acid of 0-10wt%, the nitric acid of 0-10wt% and the phosphoric acid of 0-10wt%.
5. described method as arbitrary in claim 1 to 4, wherein the material of the metallic coating of this part is selected from following one: aluminium, platinum aluminium alloy, alumel and platinum alumel, the substrate material of this part is selected from following one: nickel-base alloy, cobalt base alloy and ferrous alloy.
6. the method for claim 1, wherein the material of the metallic coating of this part is the platinum aluminium alloy, the substrate material of this part is nickel-base alloy, this electrolytic solution comprises the component that is dissolved in solvent, and this solvent is distilled water, and this component comprises the sodium-chlor of 3wt%, the ammonium chloride of 5wt% and the phosphoric acid of 3wt%, the pH value of this electrolytic solution is approximately 0.8, the temperature of this electrolytic solution is controlled at 30 ℃ of left and right, and this reference electrode is the Ag/AgCl material, and this default electromotive force is approximately 0.2V.
7. method as described in claim 1 or 6, wherein this first predetermined current value is approximately 40% of peak point current, this second predetermined current value be approximately peak point current 10% or be approximately 0.002A.
8. method as described in claim 1 or 6, wherein this Preset Time is approximately 10 minutes.
9. method as described in claim 1 or 6, wherein this electrolytic solution also upgrades operation by a pump equipment.
10. method as claimed in claim 9, wherein this pump equipment cycle rate of controlling electrolytic solution is approximately 400ml/min, about 5 minutes of update time.
11. the method for claim 1, adjustment that wherein should default electromotive force are to control by a controller to be placed in the electrode of this electrolytic solution and the bath voltage between this part is realized.
12. method as claimed in claim 11, the peak point current that wherein records this part are to realize by the electric current of this controller reception one current sensor sensing.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110337199.3A CN103088399B (en) | 2011-10-31 | 2011-10-31 | Multi-step electrochemical metal coat removal method |
| EP12780602.4A EP2809835A1 (en) | 2011-10-31 | 2012-10-11 | Multi-step electrochemical stripping method |
| PCT/US2012/059677 WO2013066586A1 (en) | 2011-10-31 | 2012-10-11 | Multi-step electrochemical stripping method |
| IN3567CHN2014 IN2014CN03567A (en) | 2011-10-31 | 2012-10-11 | |
| CA2852908A CA2852908A1 (en) | 2011-10-31 | 2012-10-11 | Multi-step electrochemical stripping method |
| BR112014010292A BR112014010292A2 (en) | 2011-10-31 | 2012-10-11 | electrochemical pickling method |
| US14/354,929 US20140311918A1 (en) | 2011-10-31 | 2012-10-11 | Multi-step electrochemical stripping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110337199.3A CN103088399B (en) | 2011-10-31 | 2011-10-31 | Multi-step electrochemical metal coat removal method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103088399A true CN103088399A (en) | 2013-05-08 |
| CN103088399B CN103088399B (en) | 2016-01-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110337199.3A Expired - Fee Related CN103088399B (en) | 2011-10-31 | 2011-10-31 | Multi-step electrochemical metal coat removal method |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20140311918A1 (en) |
| EP (1) | EP2809835A1 (en) |
| CN (1) | CN103088399B (en) |
| BR (1) | BR112014010292A2 (en) |
| CA (1) | CA2852908A1 (en) |
| IN (1) | IN2014CN03567A (en) |
| WO (1) | WO2013066586A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240602A (en) * | 2013-06-21 | 2014-12-24 | 镇江江城金属制品有限公司 | Signboard manufacturing method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018019532A1 (en) * | 2016-07-25 | 2018-02-01 | Leibniz-Institut für Plasmaforschung und Technologie e.V. | Method for polishing conductive metal surfaces |
| CN109234792A (en) * | 2017-08-30 | 2019-01-18 | 博罗县美兴达科技有限公司 | A kind of electroplated coating electrolytic deplating process agent |
| US20220290322A1 (en) * | 2021-03-12 | 2022-09-15 | Raytheon Technologies Corporation | Systems, formulations, and methods for removal of diffusion coating from airfoils |
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- 2011-10-31 CN CN201110337199.3A patent/CN103088399B/en not_active Expired - Fee Related
-
2012
- 2012-10-11 BR BR112014010292A patent/BR112014010292A2/en not_active Application Discontinuation
- 2012-10-11 CA CA2852908A patent/CA2852908A1/en not_active Abandoned
- 2012-10-11 WO PCT/US2012/059677 patent/WO2013066586A1/en active Application Filing
- 2012-10-11 US US14/354,929 patent/US20140311918A1/en not_active Abandoned
- 2012-10-11 IN IN3567CHN2014 patent/IN2014CN03567A/en unknown
- 2012-10-11 EP EP12780602.4A patent/EP2809835A1/en not_active Withdrawn
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2809835A1 (en) | 2014-12-10 |
| CA2852908A1 (en) | 2013-05-10 |
| WO2013066586A1 (en) | 2013-05-10 |
| US20140311918A1 (en) | 2014-10-23 |
| IN2014CN03567A (en) | 2015-07-03 |
| BR112014010292A2 (en) | 2017-06-13 |
| CN103088399B (en) | 2016-01-06 |
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