Thread: pic: Gold VexPro sprocket
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Unread 18-09-2014, 02:35
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Re: pic: Gold VexPro sprocket
Quote:
Originally Posted by Adrian Clark View Post
It's worth noting that for aluminum to turn the color your sprocket did it needs to be heated to almost 2000F. Annealing aluminum on the other hand is done below 1000F. Just something to be aware of.

-Adrian
Is this because the chemical structure of the dye used in the ano changes at high temperatures, or because some kind of thin film interference varies due to head expansion between two layers?
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