FIELD: chemistry.
SUBSTANCE: invention refers to chemical treatment of metal surface, specifically to removal of proofing consisting of titanium substrate and ion plasma sprayed titanium nitride coating. The solution contains, wt %: hydrochloric acid 8.0 - 10.0, ammonium fluoride 4.5 - 6.0, sodium sulphate 0.5 - 0.9, additive "Progress 21" or "Progress 30" 0.01 - 0.03, the rest - water.
EFFECT: dissolution velocity of proofing 2,5 - 3,6 times higher without significant base metal surface quality loss.
2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| SOLUTION FOR DEEP PICKLING OF TITANIUM ALLOYS | 0 |
|
SU1194907A1 |
| METHOD OF PLASMA-ELECTROLYTIC REMOVAL OF COATINGS FROM TITANIUM NITRIDES OR THOSE OF COMPOUNDS OF TITANIUM WITH METALS | 2011 |
|
RU2467098C1 |
| SOLUTION FOR PICKLING TITANIUM ALLOYS | 0 |
|
SU1201347A1 |
| COMPOSITION FOR REMOVING COATING OF TITANIUM NITRIDES | 1996 |
|
RU2101389C1 |
| METHOD OF PROCESSING TITANIUM AND ITS ALLOYS | 2023 |
|
RU2813428C1 |
| METHOD FOR ELECTROLYTE-PLASMA REMOVAL OF POLYMER COATINGS FROM SURFACE OF PART FROM ALLOYED STEELS | 2013 |
|
RU2566139C2 |
| METHOD FOR ELECTROLYTE-PLASMA REMOVAL OF POLYMER COATINGS FROM SURFACE OF LAMINATED TORSION BAR OF HELICOPTER MAIN ROTOR | 2014 |
|
RU2556251C1 |
| METHOD FOR ELECTROLYTE-PLASMA REMOVAL OF PROTECTIVE COATING BASED ON ALUMINUM AND NICKEL FROM SURFACE OF WORKPIECE | 2023 |
|
RU2805723C1 |
| COMPOSITE METAL-DIAMOND COATING, METHOD OF ITS PRODUCTION, DISPERSE SYSTEM FOR DEPOSITION OF COMPOSITE METAL-DIAMOND COATING AND METHOD FOR ITS PRODUCTION | 2019 |
|
RU2706931C1 |
| SOLUTION FOR PICKLING TITANIUM AND ITS ALLOYS | 0 |
|
SU1014988A1 |
