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ah thanks! I was going for dark cherry red which should be around 700C according to charts and the flux should servive until 800ish...
The torch i have is a bit weak, the flame is very small so might need to get a larger flame one?
Does any of this make sense ?
Cheers!
3 Attachments
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RabiCycle
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You only want a faint red for silver soldering/brazing. Definitely not glowing hot. A smaller torch is easier to use, a bigger one won't make it easier
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Ah ok it’s mapp. Should still be able to get a nicer joint than that.
As @PhilDAS says bigger doesn’t always = better.
Practice where you’re directing the heat so that the brazeon and tube heat up together. Looking at your first photos again, the tube is quite heavy walled so I suspect you’re struggling to get it hot without the braze on getting burned up? Heating there tube from the other side, allowing the heat to soak around to the brazeon then heating it a bit might work?
PhilDAS
M_V
Metal shouldn’t be red hot for silver.
What kind of torch are you using?