Problem anodizing

Joined
Aug 3, 2014
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57
Hey what's up guys, so I have an issue with anodizing some titanium scales. A buddy of mine gave me his knife and wanted his scales anodized. It's a Kershaw cryo 1555ti, at first I thought the scales were just sandblasted, which gave it the dark grey appearance. So I prepped the scales by cleaning all the oil off them and proceeded to anodize them and nothing happened for the obvious reason that the scales are coated with a matte grey carbo-nitride. So then I tried getting that coating off by boiling up some multi etch and that had no effect. So next best thing, I took the torch to the scales and I saw the coating fade away and I ended up with discoloration, and then I dunked them into the multi etch again which cleaned them right up and proceeded to anodize again, which I'm sure would've worked but still no dice..... did I possibly contaminate my anodizing bath water with the first attempt? Or did I harden the Titanium with the torch and for that reason they won't anodize?? I'm really baffled by this.. any help I'd much appreciate it! Thanks!
 
The knife is not titanium... its coated in titanium nitride! You can't anodize that. You're just heating up steel.
 
Yep grade 410 steel. Also if you took a torch to his knife with steel scales you may have annealed the detent ball which may now wear down extremely fast. I doubt the frame was heat treated but if it will also be annealed.
 
Haha OK that makes sense, I looked up the knife and it just said that it was coated but didn't say what the scales where actually made of, I assumed they were titanium. That solves my problem, Thanks guys
 
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