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| How to reduce the impurity ions in the bath? |
| 点击：7787 发布单位：www.gdhongma.cn 发布时间： 2017-06-23 |
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As everyone knows, in the electrophoretic coating in industrial production, the impurity ions into the tank is inevitable! But too much impurity ions into, stability and to electrocoats electrophoretic paint coating quality and coating utilization and other aspects will cause adverse effects. Therefore, in order to guarantee the effect and quality of electrophoretic coating, we must try our best to ensure the cleaning of electrophoretic paint. Well, when electrophoresis paint impurity ion concentration is too high, how to deal with it? The following by the coating line manufacturers professionals to share with you.
Methods and points for attention to reduce impurity ions in electrophoresis bath:
The problem of excessive impurity ions in electrophoretic paint is solved by emitting an appropriate amount of super filtrate.
Prior to the discharge of the filtrate, the ultrafiltration membrane pipe shall be inspected and, if found to be damaged, shall be replaced immediately to prevent the loss of the paint when the leachate is discharged.
According to the high degree of conductivity of the bath liquid or the size and extent of the "frog skin" of the electrophoretic paint film, the content of the impurity ion was determined, and then the discharge amount of the super filtrate was determined.
According to the content of solvent and electrocoats ultrafiltrate emissions, adding to the solvent and the solvent content is ultrafiltrate emissions, in order to maintain the discharge after ultrafiltration bath solvent content of relative balance and stability.
Check pure water quality to ensure water quality is qualified (electric conductivity must be less than 10us/cm, pH value <7.0). Purified water with the same amount of ultrafiltration as needed.
Warm tip: in order not to waste too much emissions, the leachate should be discharged separately. Moreover, in order to keep the relative balance and stability of the solvent content in the tank, the corresponding amount of solvent should be recovered before discharge. |
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