Should I heat Ni80 and SS before wicking?

[AkiN111]

Hi folks,

I have fused clapton fully Ni80 and another fused clapton SS core with Nichrome (0.2).

My question is .. should I heat them up before wicking?

I have already heated Ni80 upto yellow bright light and I wonder if it will cover up with some toxic oxide (as nickel does), should I throw it away?

 

[Eskie]

You have to pulse contact coils so you can eliminate hot spots and assure proper heating. Spaced not so much. Regardless, you only need to heat them to a dull to medium orange to see what you need to (same for dry burning when cleaning). Heating them to bright yellow is not necessary. While it may be only a theoretical question as to whether dry burning a coil is "safe", it's easy to simply heat sufficient to the task and not illuminating the room.

 

[AkiN111]

Once heated to "illuminating" the room, as I did it with Ni80, the coil needs to go to garbage?


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[Eskie]

Once heated to "illuminating" the room, as I did it with Ni80, the coil needs to go to garbage?


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No, the issue isn't so much of damage to the coil (unless you melt it) but the theoretical risk of releasing toxic stuff from the wire and breathing it in. It's like the reason you can only run Ni200 or Ti in temp control only so they don't get too hot and possibly release that stuff. On wires like Kanthal., Nichrome, and SS that's not considered an issue.

 

[CircaSurvives]

That's why I use Kanthal and SS for temp control.

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[sonicbomb]

You should torch the wire before or after you coil it to remove the machining residue.