Archive for November, 2009

Tubing

November 29th, 2009 at 10:37pm Under metal finishing

i have some tubes to ano, but the suface area (inside and out ) is more than my power supply can deal with.
sooo, if i plug the ends, but alow a small hole in the plugs to enable the tube to fill with acid so as it wont float to the surface, can i get away with not taking the inside surface into consideration when calculating ? the inside doesnt need to be ano’d

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chopper engine

November 29th, 2009 at 10:37pm Under metal finishing

I am building a custom chopper I have a new ultma 113 that I have taken apart and polished the cases on it but I cant seem to get the jugs and heads.
What do I need to do to get down between the fins.

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rectifer diode

November 29th, 2009 at 10:37pm Under metal finishing

Anybody know where I can purchase a diode for my rectifer?

I seen some on amp but seems they are only for 2 amps.

My recitifer is 50 amps.

Please help.

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copper finish for fire pit

November 29th, 2009 at 10:37pm Under metal finishing

any suggestions for a finish that can hold up to the heat in fire pit
what i care about most is the 6" wide outermost ring, which of course gets super hot but it would be nice to hold up on the bottom as well but that is where its hottest of course. right now there is no grate on the bottom of the pit so the coals are right on the copper
in lieu of that, how about an exterior grade finish, some kind of clear that
just needs to be re-applied every so often?
its amazing how fast it oxidizes after the vinegar/lemon juice/salt cleaner, which btw works better than any of the commercial cleaners i’ve tried.


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Plating test equipment

November 29th, 2009 at 10:36pm Under metal finishing

Plating test equipment for sale. Some equipement new and used.
The best equipement for trouble-shooting copper, chrome, brass, bronze, nickel, gold, zinc etc… The ¨Hull Cell¨ I have two new and two older cells with heaters, 6 packages of high pollish brass panels, one electronic thermometer, electronic selective-ion pH meter with probes, anodes bags, other plating and bench test waste treatment equipment to learn how to treat your chemical waste.
Cleaning out garage and giving up my collection.
Write back to NOL4154

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making powder a paint

November 29th, 2009 at 10:36pm Under metal finishing

Here is the question.
i have heard that you can use MEK or methy-ethyl-ketone and mix it with the powder to make a paint you can brush on. Has anyone tried this and does it work?
If it does work what kind of viscosity am I looking for?
any help would be great.
Thanks

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starting an oven build

November 29th, 2009 at 10:36pm Under metal finishing

Okay. I have been throwing this one out there.

So I read the best way to do it is to start with "metal studs".. I am assuming just square tubes 2"x2" with a 1/8" wall thickness.

Is that to much over kill?

Then you are to frame it on the inside and outside with sheet metal and insulation in between?

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xDNA – Color Management Technology

November 28th, 2009 at 09:34am Under metal finishing

Based on a patented mathematical system, xDNA produces a three dimensional color portrait that measures up to the complexities of modern paint systems.

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2000W Mini Titanium Heater

November 28th, 2009 at 09:34am Under metal finishing

Does anybody else have this heater? I just got it in the mail.. Online it said built in thermostat.. How do I adjust the temperature on this device?

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Is my 2nd Mastech going bad?

November 28th, 2009 at 09:34am Under metal finishing

Hey guys, got a new one for ya. first off, thanks to all who have helped me, ive been ano’ing for a couple months now achieving quality results. recently got a 4 gallon tank running with plenty of aeration as well as cooling, all sealed up in a cooler.

so i got my first account, 300+ pieces at 38sq in. each. ive been playing with ASF settings as i feel more comfortable, currently running at 9asf getting great results w/ my tank at 64-68*.

recently when doing 4 pieces[152sq.in.] i’ll start my mastech HY3020E as usual, but when i apply amps, my PS will max out at around 1.3-1.5A. with the parts drawing about 0.8-0.9V.
at first, a couple seconds later it would kick on and jump to the correct amps as set. Now it takes me 10+ minutes of playing w/ the knobs, cursing, etc. for the power supply to actually break that 1.5 amps.
During the 10 mins it takes, the amps will start at about 1.3 max then slowly climb to 1.5-1.6max while the volts hover at around .9 the whole time.

when i hook up a small run[24 sq. in.] the PS behaves as normal, but it seems the more load[190 sq. in.] is when it started acting up.
so 10 mins ago i attempted another run, played w/it for 5 mins, dropped another piece so its down to 114sq.in., took another 5 mins to get going again.

any ideas or just another bunk unit?

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