推荐回答(2个)
1、无氰碱性亮铜
在铜合金上一步完成预镀与加厚,镀层厚度可达10μm以上,亮度如酸性亮铜镀层,若进行发黑处理可达漆黑效果,已在1万升槽正常运行两年。
能完全取代传统氰化镀铜工艺和光亮镀铜工艺,适用于任何金属基材:纯铜、铜合金、铁、不锈钢、锌合金压铸件、铝、铝合金工件等基材上,挂镀或滚镀均可。
2、非甲醛镀铜
非甲醛自催化化学镀铜用于线路板的通孔镀和非导体表面金属化。革除有毒甲醛代之以廉价无毒次磷酸盐,国内外尚无商业化产品。已基本完成实验室研究,沉积速度3~4μm/h,寿命达10循环(MTO)以上,镀层致密、光亮。但有待进一步完善和进行中试考验。
3、高速镀铬
节省成本、高镀速、高耐磨、高抗腐蚀性能。不但可提高电流效率,更可增强耐磨和抗腐蚀性能。适用于任何镀硬铬处理,包括: 微裂纹铬, 乳白铬,也可用于光亮铬等。质量好、工艺稳定、生产效率高、节约能源、经济效益显著。
4、纳米镍
应用纳米技术研发的环保型产品,能完全取代传统氰化镀铜预镀和传统化学镍,适用于铁件、不锈钢、铜、铜合金、铝、铝合金、锌、锌合金、钛等等,挂镀或滚镀均可。

扩展资料:
电镀过程中影响因素
主盐体系:
每一镀种都会发展出多种主盐体系及与之相配套的添加剂体系.如镀锌有氰化镀锌,锌酸盐镀锌,氯化物镀锌(或称为钾盐镀锌),氨盐镀锌,硫酸盐镀锌等体系。
添加剂:
添加剂包括光泽剂,稳定剂,柔软剂,润湿剂,低区走位剂等.光泽剂又分为主光泽剂,载体光亮剂和辅助光泽剂等.对于同一主盐体系,使用不同厂商制作的添加剂,所得镀层在质量上有很大差别.总体而言欧美和日本等发达国家的添加剂最好,台湾次之,大陆产的相对而言比前两类都逊色。
参考资料来源:百度百科-电镀
一、电镀青铜,黄铜件染黑古色,古绿色,与直接抛亮金(炸金色)配方与操作技巧
首先,镀青铜,黄铜工件染黑色药水配方:
亚砷酸 125 g/L
硫酸铜 62 g/L
温度 常温
水 加至1L
注意:此染黑溶液配制后,需停放24h后使用。
二、镀青铜,黄铜工件染绿色药水配方:
硫酸铜 200- 210g/L
氯化钠 50- 53g/L
硫酸铵 200- 210g/L
酒石酸 50-53g/L
水 加至1L
温度 常温
注意要点:浸渍或喷淋后任其自然干燥。
三、镀青铜,黄铜工件染古铜色药水配方
硫酸铜 41g/L
硫酸铵 52g/L
氢氧化钠 59g/L
碳酸铵 30g/L
尿素 适量
水 加至1L
温度 常温
工艺条件:浸泡染色时间5-8min。
最后,我们团队分享一下镀青铜,黄铜工件直接抛金色(炸金)药水配方,这个工艺应用广泛,特别在,铜钮底三件与铜拉链条装上,其成份:
A液:双氧水 1000ml
无水乙醇 100ml
硝酸 90ml
LJ-519抛金盐20克
常温在A液中抛光30秒至1分钟
然后在B液:硫酸5-10ml /L水溶液中浸泡几秒就出亮金色
仅供参考,如有问题,欢迎指出!
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