In the department of odd customer questions comes this one I just
got from a store that I do custom work for:
I was asked to explain what a “neuralized solder joint” was. The
customer said a sales person had told her that the joint at a peg
head to shank on a solitaire, which failed with a crystalline type
break,=A0had been “neuralized” by the jeweler who soldered the crown
in (5 years prior) and that the failure was the fault of the jeweler
who did that work. It was also stated that the crown had been bent
and straightened a few times in that 5 year period.
My response was that I had never heard of=A0 “neuralized solder” and
that it sounded like stress corrosion of the metal at the joint
possibly cause by one (or both) of two things: 1) stress on the
joint from being bent and straightened a few times (probably without
annealing), or 2) possible chlorine contamination=A0of=A0 the white
gold and/or white gold solder. I haven’t gotten to see the ring to
verify the type of failure or to check to see if the crown was
properly soldered in place to begin with.
My question to the group is: (and don’t laugh) Has anyone heard
the term “neuralized” used in reference to a solder joint and or its
Thanks in advance for any enlightenment you may share.