Chroming Regulations

[the artfull-codger]

I didn't know they used Hydrofluoric Acid in chrome plating. That is seriously nasty stuff, only time I've come across it was in wafer fab sites.

Hydrofluoric acid is widely used in the glass trade for decorative designs on glass [pub windows fancy mirrors etc,] we had gallons of the stuff where I worked, stored in plastic carboys, not glass of course as it dissolves glass & penetrates the skin & eats the bone away.

 

[overload]

Many of EU's bans have been due to lobbying from German businesses that will benefit - not good enviromental or safety reasons. I've seen enough of them recently. An example, EU bought in linked braking systems for motorcycles, a terrible, unsafe idea, at the request of Bosch.

You mean the ABS linked system? I think you’re confusing it with the Honda linked system which was ridiculed by nearly every Motorcycle Journalists when they tested it but hey don’t that stop you do a bit of EU bashing...

 

[dobbslc]

While were on the EU bashing.
I'll just leave this name here for the older motorcyclists...
Martin Bangerman

Probably one of the main reasons I voted out! I'll never forget what that (edit, unelected) tosser tried to force on us all!

 

[Brad93]

Yeah I get that, there is another finish that used as a build up coating so a job can be machined back to original spec.

widely used in aerospace, although these days there seems to be a preference for flame spraying

That's hard chrome.

Flame Spraying or to give it its proper name HVOF, is fantastic, but expensive, and uses tonnes and tonnes of oxy-acetyle or oxy/propane.

 

[overload]

Oh yes, I remember Martin BangeMann alright... Tried to get motorcycles banned altogether but he couldn’t get the support he needed. The same with the wide fairing for legs, and restricted power but again he didn’t succeed.

 

[badabec]

Here is your starter for ten

8 items at 11 shillings and 5d and one for half a crown. How many 10 bob notes will I need and how much change do I get?

You'll need ten of the ten bob notes and you will get six shillings and two pence change. Enough for a night out at the pictures, a couple of beers, a bag of chips and a cab home.

 

[bourbon]

went to a power point presentation on Hydrofluoric acid. It's used in some process involving aluminium welding, Just reinforced the reason why I took voluntary redundancy ( left last Friday) Anyone need a FLT driver?

 

[Brad93]

There's Hydrofluoric in pickling paste. Treat it with respect and you'll have no issues

 

[ronan]

There's Hydrofluoric in pickling paste. Treat it with respect and you'll have no issues

Yup 5% hydrofluoric, and about 25% nitric acid. Leave a pot of that open in your workshop over a weekend and see what happens. Ask me how i know

 

[bourbon]

Yup 5% hydrofluoric, and about 25% nitric acid. Leave a pot of that open in your workshop over a weekend and see what happens. Ask me how i know

go on then, what happened?

 

[Brad93]

Everything rusted I bet

 

[ronan]

Everything rusted I bet

Yup, everything ferrous was red, everything .

 

[ronan]

It also turns your skin yellow ->

 

[Jetex]

So does this mean no more chrome plated tools? Nickel plated or black oxide finish from now on.

What about ABC engines? I think that there is no alternative to hard chrome plating on the brass cylinders there.

 

[ronan]

So does this mean no more chrome plated tools? Nickel plated or black oxide finish from now on.

What about ABC engines? I think that there is no alternative to hard chrome plating on the brass cylinders there.

Nah, they will just shift production to Asia, they are killing industry over here with these regulations.

 

[ukracer]

In hard chrome plating its the hexavalent chromium thats transferred in the electrolytic process, this is what gives you the shiny finish

Trivalent chromium is applied in a passivation process, ie no electricity is involved, its just a dip. This finish isn't hard and wont provide a shiny finish, but its the favoured finish on pipe work etc typically found on JCBs etc, think the gold ish finish. This coating is self healing if it gets scratched.

So it's not really chrome then. Lol

 

[Parm]

So it's not really chrome then. Lol

It is, just doesn’t have the shiney finish

 

[ukracer]

It is, just doesn’t have the shiney finish

But that's anodising to me. Lol

 

[Parm]

But that's anodising to me. Lol

anodising uses electricity (I think) passivation doesn’t

 

[ukracer]

anodising uses electricity (I think) passivation doesn’t

Agreed ..I meant the finish not the process.