[Jewelry making - Article 00492] - Re: [Orchid] Resurfacing rolling mill

[James Binnion]

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>      If I may suggest that you ask a machine shop make you some new
>     rollers that are made out of S7 steel and have them heat treated.
>     They will last forever. 

    I once destroyed a set of rolls for my power mill (don't ask) so I
    had the replacement rolls made from S7. They were heat treated to
    RC54. In the 12 years since I had them made they have developed a
    few blemishes from the rolling of wire through the flat mill. I have
    since found out that S7 is considered a little too soft for this
    use. If I do it again I will probably specify A2 rather than S7 for
    the rolls as that is what I have made my side rolls from and they
    have stood up to lots of use. Another option is 52100 but I
    understand it is more likely to distort in heat treating. 

Jim Binnion
James Binnion Metal Arts
Phone (360) 756-6550
Toll Free (877) 408 7287
Fax (360) 756-2160
http://www.mokume-gane.com
jbin AT mokume-gane.com
Member of the Better Business Bureau

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