Red Gold Wedding Rings - Soldering

I’m sure this has been covered before, but couldn’t find the thread I was looking for.

The smallest of the rings, 5x2mm band (the larger is 8x2mm) I have prepped ready for soldering. Tight seam, banding wired up, small pallions on the inside of the seam and couldn’t get the solder to melt.
Heated the whole ring, then concentrated the flame on the seam. The ring was bright red and couldn’t hold it any longer through fear of melting the ring.

I have a small handheld butane torch and am soldering on a charcoal block with 2 soldering blocks behind forming a right angled corner.

Do you have any tips, or do I just need to hold my nerve a bit longer?

Will also want to use the same process for the larger ring.

Thanks


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