FIELD: systems for applying coatings in vacuum, possibly protective coatings in machine engineering and machine tool making industry branches.
SUBSTANCE: electric-arc generator of plasma metal flows includes cooled anode and cathode; cathode holder; igniting electrode, stabilizing solenoid arranged on outer surface of cooled anode; duct for supplying reaction gas, focusing solenoid and additional anode. Focusing solenoid is arranged on outer surface of additional anode. Cathode holder includes electrically insulated sleeve of magnetically soft material whose outer diameter is equal to diameter of end working portion of cathode mounted with gap relative to cooled anode. Invention prevents penetration of cathode holder material into coating, lowers micro-drop and vapor phase creation at time moments of turning off electric arc, increases ionization degree of plasma flow of metal.
EFFECT: improved quality, enhanced adhesion strength of coating.
1 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| ELECTRIC - ARC GENERATOR OF SEPARATED FLOWS OF METAL PLASMA IN VACUUM | 2005 |
|
RU2287611C2 |
| METHOD OF APPLICATION OF COMPOSITE COATS IN VACUUM | 2003 |
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RU2256724C1 |
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|
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| VACUUM-ARC GENERATOR WITH LOUVER SYSTEM OF PLASMA FILTRATION FROM PARTICLES | 2012 |
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| VACUUM-ARC SOURCE OF PLASMA | 2009 |
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| METHOD FOR COATING AND FACILITY FOR ITS IMPLEMENTATION | 2005 |
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| ELECTROARC EVAPORATOR BY A,N,RUDNEV | 0 |
|
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| METHOD FOR VACUUM COATING ON THE INNER SURFACE OF LONG CYLINDRICAL PRODUCTS | 2021 |
|
RU2786493C1 |
| PRODUCTION OF ELECTRIC-ARC PLASMA IN CURVILINEAR PLASMA GUIDE AND APPLICATION OF COATING ON SUPPORTING STRUCTURE | 1997 |
|
RU2173911C2 |
