摘要
为了提高电镀不锈钢镀液的稳定性能,采用蓄电池耐腐蚀隔膜材料将石墨阳极与电镀液隔离,阳极区电解液中不加Fe2+和Cr3+盐,连续电镀30min,阴极区Fe3+质量分数为0.35g/L,未加隔膜时为1.10g/L,累计电镀120min,Fe3+降至0.18g/L。该工艺克服了镀液中Fe3+持续升高和由此引起的电镀试片发黑问题,镀出的双层镍-非晶态不锈钢防护装饰镀层试件经16h连续喷雾,并经保温8h的铜加速醋酸试验,保护等级在9级以上,外观无明显变化。
In order to improve the stability of electroplating stainless steel solution, membrane material used in storage battery with corrosion resistance is adopted to insulate the graphite anode from bath. Without adding Fe^(3+)and Cr^(3+)in anodic area, the Fe^(3+)content in cathodic area is 0.35 g/L with membrane but 1.10 g/L without membrane after electroplating 30 minutes.Keeping on electroplating 120 minutes, the Fe^(3+)content decreases to 0. 18 g/L. The technology overcomes the increasing of Fe^(3+)in bath, which will result in blackening of sample. The formula and process is listed. The electroplated double Ni-amorphous stainless steel coatings is above ninth protective grade without obvious change of appearance after copper accelerating acetic acid corrosion test that continuously spraying 16 hours and temperature preserving 8 hours.
出处
《材料保护》
CAS
CSCD
北大核心
2004年第1期46-47,共2页
Materials Protection
基金
国家自然科学基金项目(20376077)
国家重点科技项目(ZX9541)
河南省自然科学基金项目(0111031600)
关键词
电镀
不锈钢
稳定性
镀层性能
electroplating
stainless steel
stability
property of plating
