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Author Topic: Brazing/silver soldering problems  (Read 305 times)

DaveM

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Brazing/silver soldering problems
« on: April 15, 2019, 10:15:59 AM »

I've been using some 1.2mm dia soldering/brazing rods which I rescued from a shop closure in 1975. They came shrink-packed on a card under the GAZ brand, although that card was lost a long time ago. This wire is pretty hard and is excellent for hard-soldering K&S brass rod and also stainless steel M310 TIG welding rod of up to 2.4mm dia, with East Flow powder-mix flux.

My problem is that it's all been used now, and the silver solder I've bought to replace it just doesn't agree with these materials and/or my previous soldering technique. I am using a butane/propane Gaz TH2000 torch with a fine nozzle. Can anyone recommend a brand or type of solder wire and compatible flux for these jobs and which they have used, please?

DaveM
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Mark T

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Re: Brazing/silver soldering problems
« Reply #1 on: April 15, 2019, 12:29:02 PM »

Hi Dave Iíve used this very successfully on stainless


https://www.cupalloys.co.uk/silver-solder-fluxes/index.asp


Iíd give cupalloys a ring they are extremely helpful


Mark
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DaveM

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Re: Brazing/silver soldering problems
« Reply #2 on: April 15, 2019, 01:46:14 PM »

Many thanks for your prompt reply, Mark. I've also had an E-Mail from an old friend/correspondent who recommended Cupalloy, so I'll fire off an E-Mail to them and see what's what.

Dave M
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gingyer

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Re: Brazing/silver soldering problems
« Reply #3 on: April 15, 2019, 05:13:44 PM »

Could I ask please,
any chance once you have done practising with the new stuff to do a bit of a tutorial??


I have tried silver soldering and I  will  admit Iím crap.... I have tried to watch and learn on the YouTube vids but I always go wrong


Thanks  :-))
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DaveM

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Re: Brazing/silver soldering problems
« Reply #4 on: April 15, 2019, 05:44:38 PM »

Ned
Yeah - let's hope so, particularly now it's cost me over twenty quid to find out... This stuff is NOT cheap.  :o

Colin
What makes you think I'm going to be any good at it, especially with unfamilar materials?!  :embarrassed: If I get anywhere near good enough I'll have a think about it!
Dave M
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Martin [Admin]

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Re: Brazing/silver soldering problems
« Reply #5 on: April 15, 2019, 07:36:18 PM »


Topic cleaned up .... flux removed.... de-soldered?!
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