[TheForge] Re: File making in Japan

[A Vida]

Today's crap files are case-hardened.  Good files are through-hardened 
in molten lead.  The lead prevents oxidation in the same way salt baths 
work.  I am not certain why lead is used in preference of salts, but I 
suspect that salt will rapidly attack the extremely fine cutting edges, 
resulting in a less sharp product.

	-Andy

wmullett at bright.net wrote:
> For some reason, my earlier post didn't get there.
> 
> I don't believe this is flux.... think carbon - case hardening!
> ============================================================
> From: "Peter Hirst" <saltydog335 at aol.com>
> Date: Tue Mar 18, 11:26 AM
> To: "Paul Boulay" <pboulay at earthlink.net>, 
>         "Sponsored by ABANA" <theforge at mailman.qth.net>
> Subject: Re: [TheForge] Re: File making in Japan
> 
> I assumed that is a flux to preserve the sharpness of  the teeth from 
> scaling off in the forge.
> 
> ?
> 
> Keziah
> 
> ----- Original Message ----- 
> From: "Paul Boulay" <pboulay at earthlink.net>
> To: <theforge at mailman.qth.net>
> Sent: Tuesday, March 18, 2008 11:47 AM
> Subject: [TheForge] Re: File making in Japan
> 
> 
>> Hi folks,
>>
>> Ah so, des ne! File making video very interesting.
>>
>> But I noticed just prior to quenching the file was dipped in a dark gray 
>> powder - twice - then it was quenched. Anybody have any idea what this 
>> was? a sort of flux? or perhaps carbon in some form to promote hardness?
>>
>> Regards,
>> Paul Boulay
>>
>> ------------------------------
>>> From: "Jerry Frost" <akfrosty at mtaonline.net>
>>> To: "Sponsored by ABANA" <theforge at mailman.qth.net>
>>> Sent: Monday, March 17, 2008 12:11 AM
>>> Subject: [TheForge] File making in Japan
>>>
>>>
>>>> http://translate.google.com/translate?u=http%3A%2F%2Fwww.tctv.ne.jp%2Fyasuri-%2Fproduct.html&langpair=ja%7Cen&hl=de&ie=UTF-8
>>>>
>>>>
>>>> Frosty
>>>> -------------------------------
>>>> If it ain't forged
>>>> it ain't real.
>>>> Wrought iron is.
>>>> The FrostWorks
>>>>
>>>> Meadow Lakes, AK.
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> 
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