|Roger Hulett||27/05/2019 16:41:45|
|131 forum posts|
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.
|Ian P||27/05/2019 17:05:34|
2254 forum posts
Usual method is to use two or more solders with different melting temperatures, (use the higher temp one first)
|Jeff Dayman||27/05/2019 17:16:43|
|1660 forum posts|
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.
Edited By Jeff Dayman on 27/05/2019 17:17:38
|Roger Hulett||30/05/2019 15:46:12|
|131 forum posts|
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 ?
|796 forum posts|
I stage solder my boilers and other items
Silver solder for stage one and a lower temp s/s for stage two followed by high temp solder such as Comsol followed by standard leaded plumbers solder if need be.
Edited By 34046 on 30/05/2019 16:07:37
|114 forum posts|
If its silver solder I use either "lead" from a pencil of Tippex correction fluid . Never tried it for soft solder
|John Billard 1||30/05/2019 18:01:53|
|68 forum posts|
Tippex works for soft solder.
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