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Xinsida teaches you how to do a good job in the maintenance of cyanide free alkali copper
1. Pay attention to two points during normal protection:
(1)浓度：确保浓度在12波美以上（8-20之间）。
(2)pH：确保pH在9-10之间。
2.前处理要加强，由于无氰碱铜的除油作用不如氰化物，所以除油一定要洁净。
3.活化酸可以用2%以上的稀硫酸，可是一定要过水清洁洁净再入无氰碱铜缸，假如运用配套的无氰碱铜活化剂则无需清洁，直接入缸，确保活化作用。
4.一定要远离氰化物操作，由于无氰碱铜对氰化物及其灵敏，微量的氰化物也许就会使镀层呈现暗色或直至发黑或印斑。
5.时间久了或带人有机物可以打双氧水，活性炭大处理。
6.开缸今后，通常无需再补加铜离子，阳极满足弥补保护金属铜离子平衡。所以阳极一定要挂足，只要pH长时间偏低或偏高才会发生铜离子失衡。
7.调整pH最佳运用氢氧化钾和活化剂。
This article is from:http://www.newstar-china.com/
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