soldering brass

soldering brass

This topic has 7 replies, 6 voices, and was last updated 30 May 2019 at 18:01 by John Billard 1.

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27 May 2019 at 16:41 #9681
Roger Hulett
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@rogerhulett83124
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27 May 2019 at 16:41 #411159
Roger Hulett
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@rogerhulett83124
I am beginning to assemble my brass,home made carburettor. I have faithfully copied the original. It is necessary to solder the parts together. However, some parts have to be soldered to other parts that have already been soldered. Is there a technique for keeping the old parts cool whilst heating up adjacent parts for soldering. The parts can not be soldered simultaneously.
27 May 2019 at 17:05 #411165
Ian P
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@ianp
Usual method is to use two or more solders with different melting temperatures, (use the higher temp one first)

Ian P
27 May 2019 at 17:16 #411167
Jeff Dayman
Participant
@jeffdayman43397
You can use the old trick of wrapping the end you want to keep cool in a wet rag, or embed it in a cold raw potato.

Sometimes just clamping on a hemostat or attaching a piece of copper sheet with an alligator clip will do.

Good luck!

Edited By Jeff Dayman on 27/05/2019 17:17:38
30 May 2019 at 15:46 #411711
Roger Hulett
Participant
@rogerhulett83124
Further to this topic, adjacent to the item being soldered there is a threaded section. Obviously I don't want to let the solder run into this area. Is there an anti flux,something that prevents the solder running into the threads….. Vaseline,grinding paste,butter, 3 in i oil ?
30 May 2019 at 16:07 #411714
Former Member
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@formermember19781
[This posting has been removed]
30 May 2019 at 16:25 #411719
BC Prof
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@bcprof
If its silver solder I use either "lead" from a pencil of Tippex correction fluid . Never tried it for soft solder

Brian C
30 May 2019 at 18:01 #411734
John Billard 1
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@johnbillard1
Tippex works for soft solder.

John B
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