Jump to content

Recommended Posts

10 minutes ago, 240260280 said:

Temperature and current also affect shininess according to some documents I have read.

I believe current plays a major part. I lean towards more current is shinier but I haven't done anything that makes that conclusive.

It would be interesting to know how temperature affects shine. My bath is thermostatically controlled about 117F or so

Share this post


Link to post
Share on other sites

There clearly is a correct process.  And one that produces consistent, high-quality results.  If there wasn't, there wouldn't be a plating industry. Our problem is the none of us knows with certainty what that process is, and how whether it scales successfully from industrial-size batches to little, hobby-sized batches.  I've recently been associated with a university-based research project being conducted with a big commercial plating operation located in southwestern Ontario.  Next time I'm visiting that campus, I'll see if I can break out some time to have a chat with the prof who's leading the research team.  It would be interesting to hear what he has to say about do's and don't's for these hobby-scale plating set-ups.  My fear is that he'll start showing me chemistry equations, in which case I'm doomed. :wacko:

Share this post


Link to post
Share on other sites
1 hour ago, Namerow said:

There clearly is a correct process.  And one that produces consistent, high-quality results.  If there wasn't, there wouldn't be a plating industry. Our problem is the none of us knows with certainty what that process is, and how whether it scales successfully from industrial-size batches to little, hobby-sized batches.  I've recently been associated with a university-based research project being conducted with a big commercial plating operation located in southwestern Ontario.  Next time I'm visiting that campus, I'll see if I can break out some time to have a chat with the prof who's leading the research team.  It would be interesting to hear what he has to say about do's and don't's for these hobby-scale plating set-ups.  My fear is that he'll start showing me chemistry equations, in which case I'm doomed. :wacko:

Yes, absolutely!! Get me the chemistry if it come up. My wife is a chemist and can translate for me.

I know there are two main types of zinc plating baths. I don't know which one is the Caswell system. I would love to know what our plating bath is. The brightener we use and the chromates.

The brightener being the highest priority as it is a consumable and fairly expensive. Plating tank solution next and Chromates last. If I could find a testing lab near me that wouldn't tear me a new one I would figure it out on my own.

A professor in this field could be a huge "Ringer"

 

Share this post


Link to post
Share on other sites

I ran some plating last weekend and I ran it at a lower temp. Got pretty good results. Not conclusive...

This is a run coming out of the plating tank. Really nice chrome-like results. Might be hard to see in the pics

20180317_155029.jpg20180317_141741.jpg

20180317_150027.jpg

I also tried a little experiment. Sometimes tubes have some corrosion on them that makes them rough and thin. So I broke out the torch and some silver solder

20180317_125126.jpg

20180317_141750.jpg

This is built up. The end was not wanting to take solder

 

20180317_144919.jpg

Zinced

20180317_150100.jpg

Overall a good weekend in the shop...

20180317_143050.jpg

 

  • Like 1

Share this post


Link to post
Share on other sites

Fired up the plating bench again today. It's sort of hard to start and stop. Would probably be easier to just plate until everything is done. The starting and stopping can make it hard to get the setup working right again.

I tried to plate this "grease catcher" today. It goes on the back side of the front hub, held on by the wheel studs. Got mixed results

20180526_140241.jpg20180526_140255.jpg

I had these dull spots. I ran the current up and down and couldn't get rid of it. I ran this all the way through yellow cad and dried it. The dull spots wouldn't take color. Then I bead blasted it again and replated it. I had to rotate it a good bit to get it all to plate. I still had a few dull areas that I polish with a scrubby pad before chromating. Here is the result

20180526_175104.jpg20180526_175112.jpg20180526_175116.jpg20180526_175121.jpg

I think part of the issue was my power supply was maxed out. I ran this basically at 10 amps and I think it could have been higher. I have found higher currents make my parts brighter. I plated some front grease caps at close to 6 amps and they fizzed the whole time, but they came out shiny and nice. You can see them in the earlier picture...

 

Share this post


Link to post
Share on other sites

I love having the barrel plater!!! I did these today in one batch. Load em up and let it run for like an hour.

20180601_180441.jpg

I have found when my plate comes out really shiny, I blue dip for a minute or so, maybe less but I have to color dip for as much as 7 minutes to get color. I assume it's because the really shiny zinc is just harder and doesn't take color as well. I have also found when my plate isn't shiny I can turn up the current and the plate will brighten up. I have run as much as .32 per inch.

  • Like 1

Share this post


Link to post
Share on other sites

and then I get humbled

20180604_083252.jpg

Now admittedly I have some excuse. I was multi tasking on multiple cars and projects. Then I took a big swig of beer, which happened to have a wasp in it. Stung me in the throat, the little monster! Had to hurl him back up. When the swelling started to get spooky, ended up at Urgent Care getting shots in my rump. Spent the rest of the day asleep in my recliner. So the plating didn't turn out. I will strip them and try again on Saturday maybe

  • Sad 3

Share this post


Link to post
Share on other sites
9 hours ago, Captain Obvious said:

Wow. That's simply no fun at all!

Glad you're OK!

Thanks, me too. I think it had Shelley pretty wound up. I thought she was gonna kill us, driving us there! Did you see the dimensions in the other thread?

11 hours ago, 240260280 said:

btw there is a Bee in Beer.

Not interested!!!! They really aren't that tasty!

  • Like 2

Share this post


Link to post
Share on other sites

Accident on the way to the emergency room. It's like ten thousand spoons when all you need is a knife.

So what dimensions are you talking about? Last I saw, you were messing with the calipers I sent and you were still measuring a couple thousandths larger than expected. Did one of us miss a post somewhere?

Share this post


Link to post
Share on other sites
10 hours ago, Captain Obvious said:

So what dimensions are you talking about? Last I saw, you were messing with the calipers I sent and you were still measuring a couple thousandths larger than expected. Did one of us miss a post somewhere?

That is the one..thoughts?

@240260280 LOL

Share this post


Link to post
Share on other sites
12 hours ago, Captain Obvious said:

 

Haha! Am I missing the joke here or something?   LOL

That didn't show up in my unread content, sorry

Share this post


Link to post
Share on other sites

@Patcon  Over in this completely unrelated thread:
https://www.classiczcars.com/forums/topic/60181-cleaning-the-filter-on-the-carbon-canister/

The subject of activated carbon came up, and as a result, I found this on Wikipedia:

"Industrial application:

One major industrial application involves use of activated carbon in metal finishing for purification of electroplating solutions. For example, it is a main purification technique for removing organic impurities from bright nickel plating solutions. A variety of organic chemicals are added to plating solutions for improving their deposit qualities and for enhancing properties like brightness, smoothness, ductility, etc. Due to passage of direct current and electrolytic reactions of anodic oxidation and cathodic reduction, organic additives generate unwanted breakdown products in solution. Their excessive build up can adversely affect plating quality and physical properties of deposited metal. Activated carbon treatment removes such impurities and restores plating performance to the desired level."

Here's the URL for the page:
https://en.wikipedia.org/wiki/Activated_carbon

I never knew any of that, and filtering used solution through activated charcoal filter might help with what you're doing?

Share this post


Link to post
Share on other sites

I knew I could filter through charcoal. One of the problems with doing that is it removes all the brightener. As I have been getting good results up until the other day I didn't want to dump all the brightener. It is also a little expensive. I did have some funk on my plates the other day that could have been organics too. So I may need to just go ahead and filter it...

Share this post


Link to post
Share on other sites

Use polypropylene to filter it mechanically.

 

You can get the stuff at a dollar store: Cheap hazmat suits are 100% polypropylene.

 

Anode Filter Bags are polypropylene as well.

 

polywhite.jpg

Edited by 240260280

Share this post


Link to post
Share on other sites

I filtered it through a stack of paper towels last week. That helped a lot with the clarity. I also have a 5 micron filter I can use but it's a pain. The real issue is organics in the solution. You get "drag out" out of the other tanks that can contaminate the solutions. Carbon would remove all of that at a very fine level.

Share this post


Link to post
Share on other sites
2 hours ago, 240260280 said:

Use polypropylene to filter it mechanically.

 

You can get the stuff at a dollar store: Cheap hazmat suits are 100% polypropylene.

 

Anode Filter Bags are polypropylene as well.

 

polywhite.jpg

Isn't that a character from an old Woody Allen movie?

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Who's Online   8 Members, 0 Anonymous, 73 Guests (See full list)

  • Search Engine Meta Tags:
    classic, z, datsun, 240z, 260z, 280z, zcar, zed, s30, classiczcars.com, 240z.org, fairlady, 240, 260, 280, nissan, 240 z, 260 z, 280 z, zx, turbo, classic z, 280z cars, cars 240z, car forums, datsun, nissan, cars datsun, car club, 280zx, car, nissan zcar, classic z car,performance,300zx, car years, car raced, texas 350z, 300z, 350z, nissan racing , clubs car, zcca, club datsun
×

Important Information

By using this site, you agree to our Terms of Use.