SG183901A1 - Method for electrochemically stripping coatings from gas turbine components - Google Patents
Method for electrochemically stripping coatings from gas turbine components Download PDFInfo
- Publication number
- SG183901A1 SG183901A1 SG2012065512A SG2012065512A SG183901A1 SG 183901 A1 SG183901 A1 SG 183901A1 SG 2012065512 A SG2012065512 A SG 2012065512A SG 2012065512 A SG2012065512 A SG 2012065512A SG 183901 A1 SG183901 A1 SG 183901A1
- Authority
- SG
- Singapore
- Prior art keywords
- gas turbine
- electrolyte solution
- acterized
- char
- cathode
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 56
- 238000000576 coating method Methods 0.000 title description 13
- 239000000306 component Substances 0.000 claims abstract description 51
- 239000008151 electrolyte solution Substances 0.000 claims abstract description 30
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims abstract description 13
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 12
- 229940095064 tartrate Drugs 0.000 claims abstract description 7
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 6
- 229940021013 electrolyte solution Drugs 0.000 claims description 28
- 235000011006 sodium potassium tartrate Nutrition 0.000 claims description 7
- 239000001433 sodium tartrate Substances 0.000 claims description 6
- 239000001476 sodium potassium tartrate Substances 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 4
- LJCNRYVRMXRIQR-OLXYHTOASA-L potassium sodium L-tartrate Chemical compound [Na+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O LJCNRYVRMXRIQR-OLXYHTOASA-L 0.000 claims description 4
- HELHAJAZNSDZJO-OLXYHTOASA-L sodium L-tartrate Chemical compound [Na+].[Na+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O HELHAJAZNSDZJO-OLXYHTOASA-L 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 235000002906 tartaric acid Nutrition 0.000 claims description 4
- 239000011975 tartaric acid Substances 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 229940074439 potassium sodium tartrate Drugs 0.000 claims description 2
- 229910010037 TiAlN Inorganic materials 0.000 claims 1
- 239000010410 layer Substances 0.000 description 46
- 229910052751 metal Inorganic materials 0.000 description 27
- 239000000463 material Substances 0.000 description 26
- 239000002184 metal Substances 0.000 description 25
- 239000000919 ceramic Substances 0.000 description 18
- 239000011248 coating agent Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- 239000011651 chromium Substances 0.000 description 6
- 230000003628 erosive effect Effects 0.000 description 6
- 239000000956 alloy Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000010406 cathode material Substances 0.000 description 4
- 235000013373 food additive Nutrition 0.000 description 4
- 239000002778 food additive Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000005240 physical vapour deposition Methods 0.000 description 4
- 235000011004 sodium tartrates Nutrition 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- 235000008694 Humulus lupulus Nutrition 0.000 description 3
- 244000025221 Humulus lupulus Species 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 229940107218 chromium Drugs 0.000 description 3
- 235000012721 chromium Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002848 electrochemical method Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 229910001092 metal group alloy Inorganic materials 0.000 description 3
- 238000000053 physical method Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000005488 sandblasting Methods 0.000 description 3
- 229960002167 sodium tartrate Drugs 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005270 abrasive blasting Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 229910052729 chemical element Inorganic materials 0.000 description 2
- CTAJOZXGMUEADN-UHFFFAOYSA-K chromium(3+);trinitrite Chemical compound [Cr+3].[O-]N=O.[O-]N=O.[O-]N=O CTAJOZXGMUEADN-UHFFFAOYSA-K 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229960000443 hydrochloric acid Drugs 0.000 description 2
- 235000011167 hydrochloric acid Nutrition 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007750 plasma spraying Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000001358 L(+)-tartaric acid Substances 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- QRRWWGNBSQSBAM-UHFFFAOYSA-N alumane;chromium Chemical compound [AlH3].[Cr] QRRWWGNBSQSBAM-UHFFFAOYSA-N 0.000 description 1
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 description 1
- CXOWYMLTGOFURZ-UHFFFAOYSA-N azanylidynechromium Chemical compound [Cr]#N CXOWYMLTGOFURZ-UHFFFAOYSA-N 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910001430 chromium ion Inorganic materials 0.000 description 1
- -1 chromium nitrite chromium Chemical compound 0.000 description 1
- 229940035427 chromium oxide Drugs 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 229940000425 combination drug Drugs 0.000 description 1
- 230000001609 comparable effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201010010770 DE102010010770A1 (de) | 2010-03-09 | 2010-03-09 | Verfahren zum elektrochemischen Entschichten von Gasturbinenbauteilen |
| PCT/EP2011/001123 WO2011110324A1 (de) | 2010-03-09 | 2011-03-08 | Verfahren zum elektrochemischen entschichten von gasturbinenbauteilen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SG183901A1 true SG183901A1 (en) | 2012-10-30 |
Family
ID=44010162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SG2012065512A SG183901A1 (en) | 2010-03-09 | 2011-03-08 | Method for electrochemically stripping coatings from gas turbine components |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2545210B1 (de) |
| DE (1) | DE102010010770A1 (de) |
| SG (1) | SG183901A1 (de) |
| WO (1) | WO2011110324A1 (de) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3151049A (en) * | 1958-09-29 | 1964-09-29 | Union Carbide Corp | Electrolytic method of and bath for stripping coatings from bases |
| US5062941A (en) * | 1990-10-22 | 1991-11-05 | Union Carbide Coatings Service Technology Corporation | Electrolytic process for stripping a metal coating from a titanium based metal substrate |
| TW591125B (en) * | 1998-02-13 | 2004-06-11 | Mitsubishi Heavy Ind Ltd | Method and apparatus for removing Ti-derived film |
| US6454870B1 (en) | 2001-11-26 | 2002-09-24 | General Electric Co. | Chemical removal of a chromium oxide coating from an article |
| DE102004009757B4 (de) | 2004-02-28 | 2015-12-31 | MTU Aero Engines AG | Verfahren zum elektrochemischen Entschichten von Bauteilen, Verwendung des Verfahrens und Elektrode zum elektrochemischen Entschichten von Bauteilen |
| DE102007022832A1 (de) * | 2007-05-15 | 2008-11-20 | Mtu Aero Engines Gmbh | Verfahren zur Entschichtung eines Bauteils |
-
2010
- 2010-03-09 DE DE201010010770 patent/DE102010010770A1/de not_active Withdrawn
-
2011
- 2011-03-08 EP EP11709334.4A patent/EP2545210B1/de not_active Not-in-force
- 2011-03-08 WO PCT/EP2011/001123 patent/WO2011110324A1/de active Application Filing
- 2011-03-08 SG SG2012065512A patent/SG183901A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011110324A1 (de) | 2011-09-15 |
| EP2545210B1 (de) | 2018-10-10 |
| DE102010010770A1 (de) | 2011-09-15 |
| EP2545210A1 (de) | 2013-01-16 |
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