Silver soldering

General cycling advice ( NOT technical ! )
Drake
Posts: 1014
Joined: 19 Apr 2012, 9:01am

Silver soldering

Postby Drake » 21 May 2018, 11:39am

Is there a special flux for the above. If so any suggestions ?
Many thanks?

tatanab
Posts: 3704
Joined: 8 Feb 2007, 12:37pm

Re: Silver soldering

Postby tatanab » 21 May 2018, 11:42am

For soldering what materials?

Drake
Posts: 1014
Joined: 19 Apr 2012, 9:01am

Re: Silver soldering

Postby Drake » 21 May 2018, 12:38pm

tatanab wrote:For soldering what materials?

It's an airflow slide on a bbg. It consists of a very thin steel disc and a steel rod (approx 1/8 in dia) which detached itself from the disc. Originally the rod appears to have been spot welded to the disc (very tiny spot welds).

tatanab
Posts: 3704
Joined: 8 Feb 2007, 12:37pm

Re: Silver soldering

Postby tatanab » 21 May 2018, 1:01pm

I've no idea what a bbg might be, but for silver soldering steel I use Easy-Flo http://www.jm-metaljoining.com/pdfs-pro ... Powder.pdf
Stainless steel requires a different flux.

The reason for asking for more information was because modern lead free solders for use on electronic assemblies contain silver and people sometimes call that silver solder.

If your disc is very thin you might have to be careful of warping if it is essential to keep the disc flat.

rjb
Posts: 3232
Joined: 11 Jan 2007, 10:25am
Location: Somerset (originally 60/70's Plymouth)

Re: Silver soldering

Postby rjb » 21 May 2018, 1:15pm

Lots of good advice in the tech too good to lose archive.
viewtopic.php?f=1&t=49335

:wink:
At the last count:- Focus Variado, Peugeot 531 pro, Dawes Discovery Tandem, Dawes Kingpin, Raleigh 20, Falcon K2 MTB dropped bar tourer, Longstaff trike conversion on a Falcon corsa. :D

Airsporter1st
Posts: 561
Joined: 8 Oct 2016, 3:14pm

Re: Silver soldering

Postby Airsporter1st » 21 May 2018, 5:07pm

tatanab wrote:I've no idea what a bbg might be, but for silver soldering steel I use Easy-Flo http://www.jm-metaljoining.com/pdfs-pro ... Powder.pdf
Stainless steel requires a different flux.

The reason for asking for more information was because modern lead free solders for use on electronic assemblies contain silver and people sometimes call that silver solder.

If your disc is very thin you might have to be careful of warping if it is essential to keep the disc flat.


I think the OP meant bbq - i.e. barbecue. The airflow disc has a number of cutouts which correspond to the same in the body oc the barbecue. By turning the disc the flow of air can be throttled and thus combustion controlled.

crazydave789
Posts: 584
Joined: 22 Jul 2017, 10:21pm

Re: Silver soldering

Postby crazydave789 » 21 May 2018, 6:15pm

going by the possible heat from said BBQ undoing said silver solder it might be easier to nut and bolt it.

or even some washers and a split pin.

Brucey
Posts: 34239
Joined: 4 Jan 2012, 6:25pm

Re: Silver soldering

Postby Brucey » 21 May 2018, 8:01pm

Drake wrote:
tatanab wrote:For soldering what materials?

It's an airflow slide on a bbg. It consists of a very thin steel disc and a steel rod (approx 1/8 in dia) which detached itself from the disc. Originally the rod appears to have been spot welded to the disc (very tiny spot welds).


could it be that the part could be repaired using a nut and bolt, or a self-tapping screw?

BTW I'd probably try with a MIG weld, but then I have a MIG welder to hand, so it is easy for me.

Also I'd note that BBQs tend to suffer with corrosion out of the BBQ season. This is likely to be a bit worse with any repair that uses dissimilar metals.

cheers
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