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Posted by Bruce in Bangkok on November 7, 2007, 5:28 am
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On Tue, 06 Nov 2007 08:21:17 -0800, dcaster@krl.org wrote:
>
>
>>
>> I have had just this problem, but it turns out that an energetic
>> application of a grinder with a flap wheel will take care of the
>> magnetism. The thickness of the rust layer is a good indication of how
>> much time the magnetism has had to build up; just work over the part of
>> the pipe you intend to weld until the rust is all gone, then weld.
>>
>> You'll find your magnetism-induced problems will be gone.
>>
>> :-)
>>
>> --
>>
>> Tim Wescott
>
>Interesting. Do you suppose that only the rust layer is magnetised?
>Or that the vibration and heat from using the flap wheel on it
>eliminated the magnetism.
>
> Dan
>
Naw, it is the 'lectricity in the wire that does it. Shoot, everbody
knows that....
Bruce-in-Bangkok
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