Mastermind
Work Saw Specialist
Depending on the content it has a melting point between 800 and 1200° F.
Mastermind Meets The Dolmar 7910
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Depending on the content it has a melting point between 800 and 1200° F.
Mastermind
Work Saw Specialist
Stolen from Tom Walz......
"Silver Solder Versus Silver Braze
I just got another call from somebody that had a lot of problems with brazing.
Once we got into it, it became apparent that the problem was that he was trying to use silver braze alloy with a silver solder flux. He wasn't clear on the difference between silver soldering and silver brazing. He went to a welding supply store where the clerk wasn't clear on the difference either and the clerk sold him soldering flux for a brazing application.
Flux does a lot of things but primarily it is an oxygen interceptor. It is designed to keep the materials from oxidizing during brazing. If you get an oxide layer formed the braze alloy and the two parts being brazed will not join together.
Silver solder is a solder which has typically 1% to 3% silver in it and melts around a couple hundred degrees Fahrenheit. Silver braze or silver braze alloy may have 30% and 60% silver and it melts above 1100°F. These are approximations but they serve to illustrate the difference.
Typically brazing takes place above 800°F and soldering takes place below 800° Fahrenheit.
Silver solder flux and silver brazing flux are two very different compounds. Silver solder flux is designed to become active at very low temperatures and to work at very low temperatures. Silver brazing flux becomes active around maybe 500°F or so and stays active up to maybe 1500°F.
If you use silver solder flux for silver brazing then the silver solder flux will be all used up before the metals get anywhere near hot enough. If you use silver brazing flux for silver soldering the metals will be heavily oxidized before the flux even begins to become active.
The term silver soldering is often used to cover all joining using silver of any the amount and thus covers silver brazing as well. I am as guilty of doing this as anyone.
I think it would be for the general good of the industry overall, and certainly the new people, if more care was taken in differentiating between soldering and brazing.
The latest guy to call was a nice young guy and he had messed up $50 worth of parts which was a lot of money to him. I kind of hate to see that happen to anyone."
"Silver Solder Versus Silver Braze
I just got another call from somebody that had a lot of problems with brazing.
Once we got into it, it became apparent that the problem was that he was trying to use silver braze alloy with a silver solder flux. He wasn't clear on the difference between silver soldering and silver brazing. He went to a welding supply store where the clerk wasn't clear on the difference either and the clerk sold him soldering flux for a brazing application.
Flux does a lot of things but primarily it is an oxygen interceptor. It is designed to keep the materials from oxidizing during brazing. If you get an oxide layer formed the braze alloy and the two parts being brazed will not join together.
Silver solder is a solder which has typically 1% to 3% silver in it and melts around a couple hundred degrees Fahrenheit. Silver braze or silver braze alloy may have 30% and 60% silver and it melts above 1100°F. These are approximations but they serve to illustrate the difference.
Typically brazing takes place above 800°F and soldering takes place below 800° Fahrenheit.
Silver solder flux and silver brazing flux are two very different compounds. Silver solder flux is designed to become active at very low temperatures and to work at very low temperatures. Silver brazing flux becomes active around maybe 500°F or so and stays active up to maybe 1500°F.
If you use silver solder flux for silver brazing then the silver solder flux will be all used up before the metals get anywhere near hot enough. If you use silver brazing flux for silver soldering the metals will be heavily oxidized before the flux even begins to become active.
The term silver soldering is often used to cover all joining using silver of any the amount and thus covers silver brazing as well. I am as guilty of doing this as anyone.
I think it would be for the general good of the industry overall, and certainly the new people, if more care was taken in differentiating between soldering and brazing.
The latest guy to call was a nice young guy and he had messed up $50 worth of parts which was a lot of money to him. I kind of hate to see that happen to anyone."
tdi-rick
Addicted to ArboristSite
Melting point is around or above 600*C so I reckon it's pretty safe.
The high silver stuff (>45%) should be good for well over 300*C service and you need at least that high silver content to work and wet out steels, otherwise it won't work.
Jon1212
Riff Raff Fart Knocker from other Forum's.
The other advantage over welding rods is you never get confused which one is your leg, and which one is the welding rod. If you wore shoes on occasion it could help avoid a serious injury. Just sayin'
Mastermind
Work Saw Specialist
Muh wife bought me some shoes Thank You Very Much. :msp_mad:
Jon1212
Riff Raff Fart Knocker from other Forum's.
Wal Mart branded Crocs don't count. Even if you do fancy the pink ones.
Mastermind
Work Saw Specialist
These are Garmont's :msp_sneaky:
B Harrison
ArboristSite Guru
I get fussed at for reading this stuff, I need to go cut firewood or something.
shorthunter
ArboristSite Guru
The inside of the muffler.......
Just curious here, did you measure the exit on the SLR insert? What about the inlet? Muffler canister exit?
Mastermind
Work Saw Specialist
Never bothered.....just chunked it.
shorthunter
ArboristSite Guru
Well damn. I don't really want to rip mine apart but I am curious about the dimensions.
VINIFIREWOOD
I only no what I know
Randy
Between the 7900 and the 7910, which is the better ported saw?
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Between the 7900 and the 7910, which is the better ported saw?
Sent from my iPhone using Tapatalk
Mastermind
Work Saw Specialist
No real difference.
VINIFIREWOOD
I only no what I know
I read something about the crank being different in the 7910, do you know what they changed or what is diff?
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Sent from my iPhone using Tapatalk
Mastermind
Work Saw Specialist
Not that I see.
Same crank, piston, etc.
The jug is different at the exhaust flange....but the timing numbers are the same.
Same crank, piston, etc.
The jug is different at the exhaust flange....but the timing numbers are the same.
Mastermind
Work Saw Specialist
Cool. 
I love to learn new stuffs.
I love to learn new stuffs.
