Hi, I'm having some issues soldering a decorative piece to an open bangle. The bracelet is made from rectangular sterling wire 7mmx2.5mm. The decorative piece us a feather that follows the curve and us about 0.8mm thick. Here's a picture:

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I've tried sweat soldering but can't get the bangle to a hot enough temperature to melt the solder.

I've tried binding with iron wire and stick soldering the seam, but the solder just balls and doesn't flow.

Then I thought it was my torch, that it wasn't powerful enough so I bought a stronger torch and STILL NO JOY!

The solder flowed onto the feather but not the bangle...

Anyone got any tricks or tips to help me?