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Posted by SteveB on May 1, 2008, 3:45 am
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Today, a friend called me who was doing a project. They had a copper coated
steel rod about 5/8" dia. that was to be used as a ground rod for
electrical. They had no means of bending it, as it had to make a couple of
three doglegs to get around concrete. I told him that heating it would melt
the copper, and did not know if the inspector would pass it with the copper
gone. He said that was what the inspector told him to do. We'll see. If
it works, okay, if it doesn't, I'll set up a jig and bend it cold.
Now to the point. As I heated the copper, I noticed a beautiful color
change. Like peacock colors. Would it be possible to dissolve copper into
a solution, possibly using acid or electrolysis, then have the copper be
deposited on metal sheeting so that it could be heated again to get the
iridescent hues?
I've read a lot about electrolytic removal of rust, and it seems pretty
straightforward. This would be (?) a two step process. I'm going to Google
up on it. Anyone ever try it?
Steve
--
"...the man who really counts in the world is the doer, not the mere
critic-the man who actually does the work, even if roughly and imperfectly,
not the man who only talks or writes about how it ought to be done."
Theodore Roosevelt 1891
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Posted by Don Foreman on May 1, 2008, 2:31 am
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On Wed, 30 Apr 2008 23:45:54 -0800, "SteveB"
>Today, a friend called me who was doing a project. They had a copper coated
>steel rod about 5/8" dia. that was to be used as a ground rod for
>electrical. They had no means of bending it, as it had to make a couple of
>three doglegs to get around concrete. I told him that heating it would melt
>the copper, and did not know if the inspector would pass it with the copper
>gone. He said that was what the inspector told him to do. We'll see. If
>it works, okay, if it doesn't, I'll set up a jig and bend it cold.
>
>Now to the point. As I heated the copper, I noticed a beautiful color
>change. Like peacock colors. Would it be possible to dissolve copper into
>a solution, possibly using acid or electrolysis, then have the copper be
>deposited on metal sheeting so that it could be heated again to get the
>iridescent hues?
>
>I've read a lot about electrolytic removal of rust, and it seems pretty
>straightforward. This would be (?) a two step process. I'm going to Google
>up on it. Anyone ever try it?
>
>Steve
Copper plating is very easy to do. Plated copper will respond to
heat as any copper does.
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Posted by David R Brooks on May 1, 2008, 6:01 am
Please log in for more thread options Don Foreman wrote:
> On Wed, 30 Apr 2008 23:45:54 -0800, "SteveB"
>
>> Today, a friend called me who was doing a project. They had a copper coated
>> steel rod about 5/8" dia. that was to be used as a ground rod for
>> electrical. They had no means of bending it, as it had to make a couple of
>> three doglegs to get around concrete. I told him that heating it would melt
>> the copper, and did not know if the inspector would pass it with the copper
>> gone. He said that was what the inspector told him to do. We'll see. If
>> it works, okay, if it doesn't, I'll set up a jig and bend it cold.
>>
>> Now to the point. As I heated the copper, I noticed a beautiful color
>> change. Like peacock colors. Would it be possible to dissolve copper into
>> a solution, possibly using acid or electrolysis, then have the copper be
>> deposited on metal sheeting so that it could be heated again to get the
>> iridescent hues?
>>
>> I've read a lot about electrolytic removal of rust, and it seems pretty
>> straightforward. This would be (?) a two step process. I'm going to Google
>> up on it. Anyone ever try it?
>>
>> Steve
>
> Copper plating is very easy to do. Plated copper will respond to
> heat as any copper does.
The solution is copper sulphate (as strong as it will go), with a drop
of acid added. Anode can be any clean scrap copper (I used bits of
pipe). If plating on iron/steel, watch out, as copper will naturally
displace iron, without applying any current. Unfortunately, the
resulting copper coating is usually weak. If you can survive that, use a
low, steady current (trial & error, or there are tables), to put on the
copper.
I once rebuilt a worn brass shaft this way, having nothing else. Plated
it up with copper, then trued in the lathe.
In your case, could you heat/bend the rod as needed, then re-plate it?
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Posted by SteveB on May 2, 2008, 3:20 am
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> Don Foreman wrote:
>> On Wed, 30 Apr 2008 23:45:54 -0800, "SteveB"
>>
>>> Today, a friend called me who was doing a project. They had a copper
>>> coated steel rod about 5/8" dia. that was to be used as a ground rod for
>>> electrical. They had no means of bending it, as it had to make a couple
>>> of three doglegs to get around concrete. I told him that heating it
>>> would melt the copper, and did not know if the inspector would pass it
>>> with the copper gone. He said that was what the inspector told him to
>>> do. We'll see. If it works, okay, if it doesn't, I'll set up a jig and
>>> bend it cold.
>>>
>>> Now to the point. As I heated the copper, I noticed a beautiful color
>>> change. Like peacock colors. Would it be possible to dissolve copper
>>> into a solution, possibly using acid or electrolysis, then have the
>>> copper be deposited on metal sheeting so that it could be heated again
>>> to get the iridescent hues?
>>>
>>> I've read a lot about electrolytic removal of rust, and it seems pretty
>>> straightforward. This would be (?) a two step process. I'm going to
>>> Google up on it. Anyone ever try it?
>>>
>>> Steve
>>
>> Copper plating is very easy to do. Plated copper will respond to
>> heat as any copper does.
> The solution is copper sulphate (as strong as it will go), with a drop of
> acid added. Anode can be any clean scrap copper (I used bits of pipe). If
> plating on iron/steel, watch out, as copper will naturally displace iron,
> without applying any current. Unfortunately, the resulting copper coating
> is usually weak. If you can survive that, use a low, steady current (trial
> & error, or there are tables), to put on the copper.
> I once rebuilt a worn brass shaft this way, having nothing else. Plated it
> up with copper, then trued in the lathe.
>
> In your case, could you heat/bend the rod as needed, then re-plate it?
No, if the fire charred rod is unacceptable to the inspector, I will just
cold bend the next one. I was wanting to coat some other pieces of metal
with copper for decorative work, and wondered how to do it.
Steve
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Posted by Gerald Miller on May 2, 2008, 9:05 pm
Please log in for more thread options On Thu, 1 May 2008 23:20:06 -0800, "SteveB"
>
>> Don Foreman wrote:
>>> On Wed, 30 Apr 2008 23:45:54 -0800, "SteveB"
>>>
>>>> Today, a friend called me who was doing a project. They had a copper
>>>> coated steel rod about 5/8" dia. that was to be used as a ground rod for
>>>> electrical. They had no means of bending it, as it had to make a couple
>>>> of three doglegs to get around concrete. I told him that heating it
>>>> would melt the copper, and did not know if the inspector would pass it
>>>> with the copper gone. He said that was what the inspector told him to
>>>> do. We'll see. If it works, okay, if it doesn't, I'll set up a jig and
>>>> bend it cold.
>>>>
>>>> Now to the point. As I heated the copper, I noticed a beautiful color
>>>> change. Like peacock colors. Would it be possible to dissolve copper
>>>> into a solution, possibly using acid or electrolysis, then have the
>>>> copper be deposited on metal sheeting so that it could be heated again
>>>> to get the iridescent hues?
>>>>
>>>> I've read a lot about electrolytic removal of rust, and it seems pretty
>>>> straightforward. This would be (?) a two step process. I'm going to
>>>> Google up on it. Anyone ever try it?
>>>>
>>>> Steve
>>>
>>> Copper plating is very easy to do. Plated copper will respond to
>>> heat as any copper does.
>> The solution is copper sulphate (as strong as it will go), with a drop of
>> acid added. Anode can be any clean scrap copper (I used bits of pipe). If
>> plating on iron/steel, watch out, as copper will naturally displace iron,
>> without applying any current. Unfortunately, the resulting copper coating
>> is usually weak. If you can survive that, use a low, steady current (trial
>> & error, or there are tables), to put on the copper.
>> I once rebuilt a worn brass shaft this way, having nothing else. Plated it
>> up with copper, then trued in the lathe.
>>
>> In your case, could you heat/bend the rod as needed, then re-plate it?
>
>No, if the fire charred rod is unacceptable to the inspector, I will just
>cold bend the next one. I was wanting to coat some other pieces of metal
>with copper for decorative work, and wondered how to do it.
>
>Steve
>
Copper clad ground rods have about 0.015" layer of copper on the base
steel rod - at least the cutoffs I have downstairs are this way (cut
off because of the mushrooming from driving interferes with the
Cadweld mold)
Gerry :-)}
London, Canada
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>steel rod about 5/8" dia. that was to be used as a ground rod for
>electrical. They had no means of bending it, as it had to make a couple of
>three doglegs to get around concrete. I told him that heating it would melt
>the copper, and did not know if the inspector would pass it with the copper
>gone. He said that was what the inspector told him to do. We'll see. If
>it works, okay, if it doesn't, I'll set up a jig and bend it cold.
>
>Now to the point. As I heated the copper, I noticed a beautiful color
>change. Like peacock colors. Would it be possible to dissolve copper into
>a solution, possibly using acid or electrolysis, then have the copper be
>deposited on metal sheeting so that it could be heated again to get the
>iridescent hues?
>
>I've read a lot about electrolytic removal of rust, and it seems pretty
>straightforward. This would be (?) a two step process. I'm going to Google
>up on it. Anyone ever try it?
>
>Steve