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Method of and electrolytic bath for the electrodeposition of semibright nickel and nickel-cobalt coatings upon a metal surface
Method of and electrolytic bath for the electrodeposition of semibright nickel and nickel-cobalt coatings upon a metal surface
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机译:在金属表面上电沉积半光亮镍和镍钴涂层的方法和电解浴
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摘要
Semibright (matte-gloss) coatings of nickel or nickel-cobalt are deposited on a metal substrate from a WATT'S-type sulfamiate or fluorobate electroplating bath at a pH of 2.5 to 5.8, a temperature of 15. degree. to 70° C and a current density of 0.5 to 20 A/dm.sup.2 in the presence of a substance which deposits with the metal and ensures a semibright or matte-gloss finish. The substances form in situ within the bath from a cationic or amphoteric first component and a second component consisting of an organic anion interactive with the first component to produce a flocculate.
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机译:镍或镍钴的半光(哑光)涂层从WATT'S型氨基磺酸盐或氟硼酸盐电镀液的pH为2.5到5.8,温度为15度的条件下沉积在金属基材上。到70°C,电流密度为0.5到20 A / dm.sup.2,并且存在一种物质,该物质会沉积在金属上并确保半光亮或亚光光泽。所述物质由阳离子或两性的第一组分和由与第一组分相互作用以产生絮凝物的有机阴离子组成的第二组分在浴中原位形成。
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