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Posted: Tue Jul 26, 2011 6:05 am
by Mimikool
I don't see very well, but seems that's braze with brass rods, you must have bi-gaz post weld, to up to 1200-1500°.
If it's only a hard braze, you can use propane blowtorch, but to braze steel and large diameters, oxy-acetaline or propane is imperative.
Google translate don't make the different between: brazing, soldering and welding.
But if i understand : weld: with brass
solder: with tin
braze: Cu-P(copper phosphorus), Ar(silver)...
?
Posted: Tue Jul 26, 2011 6:07 am
by motorfixer1
Propane fuel alone is not hot enough to truly braze or silver solder. An Aycetelene "turbo torch" is the bare minium for this task. A Propane/Oxygen setup is also a usable heat source but harder to find. A good rule of thumb is the heat source should be able to melt the base metal you are working with. If you are planning to go much higher than 200 psi, you should have the joints welded and pressure tested.
Posted: Tue Jul 26, 2011 6:22 am
by al-xg
Weld= "Soudure", The work piece material is melted and mixed with the filler material.
Brazing= "Brasage fort", only the filler material melts, this is basically gluing with metal.
Soldering is a type of brazing="Brasage tendre", often inaccurately called "soudure a l'etain" in French. It uses lower melting point filler materials than for brazing (<450 °C)
There are also additional intermediate states, but above are the basics.
Posted: Tue Jul 26, 2011 6:43 am
by Mimikool
Here, technician made a "soudo-brasage" with brass or a brazing ?
(how to say "soudo-brasage"?)
Posted: Tue Jul 26, 2011 7:26 am
by al-xg
"soudo-brasage"= braze weld
This is just a type of brazing using bronze or brass as a filler material, the workpiece metal does not melt.
Posted: Tue Jul 26, 2011 4:02 pm
by jhalek90
I just got a quote from my local welder, $30 to have a 2'' pipe nipple welded on. Not a bad deal.
Im goin to have it done on monday, So i shall start construction on the firing valve.
Should i build a metal piston valve? or a PVC one?
Posted: Tue Jul 26, 2011 4:07 pm
by Gun Freak
Metal!!!!
Posted: Tue Jul 26, 2011 4:11 pm
by jhalek90
Gun Freak wrote:Metal!!!!
Lol, i guess that settles it then. 1.5'' porting all metal piston valve cannon with a 1000 Cubic inch chamber.
:glasses5:
Posted: Tue Jul 26, 2011 4:26 pm
by Gun Freak
Like a Baws. 8)
Posted: Tue Jul 26, 2011 5:40 pm
by warhead052
I can't wait to see the 1.5" version.
Posted: Tue Jul 26, 2011 5:56 pm
by motorfixer1
This sounds SWEEET!! Metal all the way baby!
Posted: Tue Jul 26, 2011 6:33 pm
by Fnord
HEY!
Take that original overkill tank and valve and hook it up to a vortex block/chamber. Fill it with 1/2" ball bearings.
Posted: Tue Jul 26, 2011 6:47 pm
by warhead052
Fnord wrote:HEY!
Take that original overkill tank and valve and hook it up to a vortex block/chamber. Fill it with 1/2" ball bearings.
Oh crap... I sense a new breed of bb machine guns.
Posted: Tue Jul 26, 2011 9:02 pm
by Mr.Tallahassee
Anti-aircraft BB Machine Gun!
Posted: Wed Jul 27, 2011 1:36 am
by jhalek90
Haha, in my typical style, a full auto vortex block bouncy ball gun?
That would be sick.
I think I'll stick with the 1.5" porting piston.