The Way To Excellent Electro Coat

DO’S and DON’TS for CED line

DON’TS

1)      Never enter CED tunnel while rectifier  is ON

2)      Do not add paint / additives directly to bath paint. It must be added through dosing pump with delivery at pump suction.

3)      Do not use any contaminated bucket for paint dosing. A separate bucket (100 liters) to be arranged separately for CED dosing.

4)      Do not dip any wooden / mild steel stirrer either in bath or supply paint. Use either plastic or SS stirrer.

5)      Do not run production with anolyte circulation OFF.

6)      Do not turn off UF feed pump without proper flushing of UF modules

7)      Do not keep the UF modules on paint without circulation for more than 15 min (or KOCH recommended time)

8)      Do not run turbid UF through pump mechanical seals.

9)      Do not run production with CED tank exit spray OFF.

10)  Do not load components with rust.

11)  Do not load components with heavy oil without proper wiping.

12)  Do not allow any foaming in CED tank.

13)  Do not add pigment paste without stirring the paint in barrel. Homogenize paint in barrel. Take out required quantity in bucket. Add some water to dilute it before dosing. Do not add water in supply barrel. It will result into hard settling of paint.

14)  Do not add solvent additive / pH stabilizer immediately after paste or emulsion through dosing line without flushing with DM.

15)  Do not start the production till DM4 and DM3 stages in PTC are fully operational.

16)   Do not allow bath temperature to exceed 35 deg.C as it may create harm to UF modules.

17)  Do not run production if bath temperature is less than 25 deg,C

18)   Do not run the production if oven temperature is not achieved as per set  point  as under cure gives poor film properties.

19)  Do not allow fallen parts to remain in rinses for long time.

  Do’s

1)      Test all required parameters of CED bath and rinses every day before start of production

2)      Preferably complete entire addition well before start of production

3)      CED sample to be taken from sampling point. Rinses sample to be taken from top of the tank if sampling is point not provided.

4)      In case of addition sequence, add emulsion  followed by paste. It is good practice to flush pump with DM water after addition of individual components Flush pump thoroughly after addition is complete. (i.e Dose DM water through dosing line).