almonetas

Topic: Nickel Plating, troubles pumping it

Dear Coleagues. One of my customers has problems pumping nickel bath, the impeller gets bigger after running and the pump doesn'r run any more. We work with a magnetic couplep pump, and the impeller is made of PVDF and it should be enough, however after a time he must change the impeller because is problem. Wich could be teh reasons for that problem.

275 g/l nickeñ sulphate

75 g/l nickel cloride

50 g/l boric acid

Temperature around 60ºC

1,12 g/l

There are not reasons to get problems, but the impeller gets bigger.

Thanks

DustinGebhardt

Re: Nickel Plating, troubles pumping it

How does the impeller get bigger? Does it swell? Or does it get coated with something?

-Dustin Gebhardt, CEF

Advanced Manufacturing/Finishing Engineer

Moen

Sanford, NC

almonetas

Re: Nickel Plating, troubles pumping it

it does swell

genetu

Re: Nickel Plating, troubles pumping it

Hi, Sirs,

I want to plating the inside of a small tube. The ratio is about 100. The tube diameter is about 1mm. The substrate is aluminum. The coating should protect ammonia hydroxide. Work temperature is less than 150C.

Any comments and suggestion welcome.

Kamena302

Re: Nickel Plating, troubles pumping it

We work with a magnetic couplep pump, and the impeller is made of PVDF and it should be enough, however after a time he must change the impeller because is problem. Wich could be teh reasons for that problem.

AAA