| 摘要 |
The process for producing decorative coatings on metals is primarily used in the jewelry industry, in handicrafts, and in device construction according to the invention, matte, true-to-form decorative coatings with a homogenous thickness of 3 mu m to 30 mu m are provided means of an electrochemical and plasmachemical reaction using a pulse operation in aqueous electrolytes at voltage peaks of 250 V to 750 V, pulse times of 20 mu s to 2 ms, pulse frequencies of 35 Hz to 300 Hz, pulse currents from 20 A to 120 A, electrolyte temperatures between 318 K and 360 K, and average current densities from 0.1 A cm-2 to 1 A cm-2. |
| 申请人 |
AHC-OBERFLAECHENTECHNIK FRIEBE & REININGHAUS GMBH, 5014 KERPEN, DE |
发明人 |
KRYSMANN, DR. RER. NAT., WALDEMAR, O-9071 CHEMNITZ, DE;KURZE, DR. SC. NAT., PETER, O-9109 OBERLICHTENAU, DE;BERGER, CHEM,-ING., MARIA, O-9044 CHEMNITZ, DE;RABENDING, DR.RER.NAT., KLAUS, O-9115 TAURA, DE;SCHRECKENBACH, DIPL.-CHEM., JOACHIM, O-9102 LIMBACH-OBERFROHNE, DE;SCHWARZ, DIPL.-ING., THOMAS, O-9002 CHEMNITZ, DE;HARTMANN, DIPL.-ING., KARL-HEINZ, O-4301 GUENTERSBERGE, DE |
