在过去的时候，曾经发生过镀银后的零件未及时包装并密封保存，久置在电镀厂房中而导致镀银层变黄。但是该故障零件镀银后，均及时包装并置于干燥器皿中保存，可见这并非是受到厂房空气气氛的影响。在喷漆工艺方面，发现上盖的喷漆加工，出现过整批返修的纪录。最重要的原因就是缺口未堵上，让漆雾进入，并附着在镀银层表面而无法清除。为防止此类故障的发生，加工过程中，建议用3M胶带将缺口封死，以杜绝漆雾进入。
In the past, there had been silver-plated parts after not timely packaged and sealed, placed in an electroplating plant in a long time and cause yellowing silver coating. But after the failure of parts silver, were promptly packed and stored in a dry vessel, showing that this is not affected by plant air atmosphere. In the painting process, the discovery atop the painting process, there have been a record rework the entire batch. The most important reason is that the gap is not blocked, so that the mist entered, and attached to the surface of the silver coating can not be removed. To prevent such a failure occurs, the process is recommended gap sealed with 3M tape to prevent paint mist from entering.

在济南铝板http://www.jngdly.com/电镀的工艺上，首先，有可能是电镀的某个生产环节发生了改变，从而导致故障的产生。但经调查发现，在生产条件并未发生任何改变的情况下，同期加工的类似零件并未出现此类故障。因此，排除了电镀生产条件发生改变的因素。根据以往的生产经验，导致镀银件变色最常见的原因为硫元素对镀银层的影响。
On Jinan aluminum plating process, first of all, there may be a plating production processes changed, resulting in the failure to produce. But the survey found that, in the case of the production conditions have not changed that,similar to the same period in the processing of parts did not show such a failure. Therefore, excluding the factor of plating conditions change. Based on past experience, lead to discoloration of silver pieces most common reason for the effect of sulfur on the silver-plated layer.