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Posted to rec.crafts.metalworking
Joseph Gwinn
 
Posts: n/a
Default welding and steel

In article rs.com,
(DoN. Nichols) wrote:

According to ANIMAL :
what is the reason that sauder dousn't stick to steel such as sauder
and a socket to create somthing...


I *think* that you mean "solder", not "sauder". The spelling
makes a difference when you are attempting to find information via
Google or other such search engines, and your spelling is so far off
that I'm not even sure that it could offer a reasonable suggestion for a
corrected spelling.

Solder (soft solder, the lead-tin alloy) wets copper, brass and
tin-plated surfaces nicely.

It does *not* wet steel very well in most cases, without extreme
measures.


Mechanical cleaning (wet sanding works well) followed by use of
"tinner's fluid" (zinc chloride in hydrochloric acid) works quite well.
I've been doing this for decades.

Wash the parts in hot water after they cool, to remove the residue,
which is very corrosive.

Tinner's fluid is still sold, but not necessarily under that name.
Plumbing supply houses often carry suitable fluxes.

One maker is Johnson: http://www.johnsonmfg.com. There are many
others.


Joe Gwinn