FIELD: electroplating procedures, namely deposition of composition electrochemical coatings from chrome-plating electrolytes with use of ultra-fine powder of silicon carbide as second phase.
SUBSTANCE: method comprises steps of adding into electrolyte ultra-fine powder and depositing at temperature 50 - 60°C and electric current density 50 - 60 A/dm while using as ultra-fine powder silicon carbide with specific surface 20000-40000m/kg in quantity 6 - 8 kg/m containing no more than 1.0 mass% of admixture of free carbon non-bonded to carbide and subjected to vacuum heat treatment at temperature 600-700°C for period no less than 0.5 h at residual pressure no more than 75 Pa. Method provides increased useful life period of coatings at temperature exceeding 200 - 300°C.
EFFECT: increased useful life period of coatings in condition of elevated temperatures, simplified procedure of preparing and using electrolyte-suspension in comparison with deposition of chrome-diamond coatings.
4 tbl, 5 ex
| Title | Year | Author | Number |
|---|---|---|---|
| ELECTROCHEMICAL COMPOSITE COATINGS DEPOSITION METHOD WITH USE OF SELF-CONTROL ELECTROLYTES FOR CHROME PLATING | 2004 |
|
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| COMPOSITION FOR PREPARING OF COMPOSITION ELECTROLYTICAL COATINGS ON THE BASIS OF IRON GROUP METALS | 1990 |
|
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| METHOD OF PREPARING CATALYTICALLY ACTIVE LAYERS AND CATALYTICALLY ACTIVE MATERIAL PREPARED BY THIS METHOD | 1998 |
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| PROCESS OF DEPOSITION OF COMPOSITE METAL AND DIAMOND COATS | 1999 |
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| METHOD TO PRODUCE NANOMODIFIED GALVANIC NICKEL COATING | 2009 |
|
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| BEARING PAIR | 2002 |
|
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| METHOD FOR PRODUCTION OF NICKEL-CHROME DIBORIDE COMPOSITE ELECTROCHEMICAL COATINGS | 2012 |
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RU2482226C1 |
| CHROMIUM PLATING ELECTROLYTE | 2009 |
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RU2409707C1 |
