在過去的時候，曾經發(fā)生過鍍銀后的零件未及時包裝并密封保存，久置在電鍍廠房中而導致鍍銀層變黃。但是該故障零件鍍銀后，均及時包裝并置于干燥器皿中保存，可見這并非是受到廠房空氣氣氛的影響。在噴漆工藝方面，發(fā)現(xiàn)上蓋的噴漆加工，出現(xiàn)過整批返修的紀錄。最重要的原因就是缺口未堵上，讓漆霧進入，并附著在鍍銀層表面而無法清除。為防止此類故障的發(fā)生，加工過程中，建議用3M膠帶將缺口封死，以杜絕漆霧進入。
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.

在濟南鋁板http://m.aeih.cn/電鍍的工藝上，首先，有可能是電鍍的某個生產環(huán)節(jié)發(fā)生了改變，從而導致故障的產生。但經調查發(fā)現(xiàn)，在生產條件并未發(fā)生任何改變的情況下，同期加工的類似零件并未出現(xiàn)此類故障。因此，排除了電鍍生產條件發(fā)生改變的因素。根據(jù)以往的生產經驗，導致鍍銀件變色最常見的原因為硫元素對鍍銀層的影響。
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.