Titanium wire, vaping and safety

[tchavei]

Incidentally guys my findings with the Dicodes are now strongly suggesting to me that the TCR of Titanium Gr1 - or at least of the Zivipf wire, if it could vary - is 0.0038 not 0.0035.

I was getting a pretty weak vape at 0.0035 / 350. It's a little clouded because I'm using two new atties, a Rose v2 clone which has very tight airflow, and my new Elprinz which has more but I'm also not used to. At first I thought it was the builds, but then got quite a different experience putting it on my SXK.

I'm now running the Dicodes at 380 (0.0038) and it's definitely better. Still having to put the temperature higher than I expected - I'm on 235°C on the Elprinz right now - but it's definitely noticeably improved since I went up from 0.0035.

The literature is confusing on Titanium. Several sources say 0.0035, but then at least one, possibly two say 0.0038. Then that 1959 government study mostly found it around 0.0039 I think, but also said their samples were only 99.9% pure.

A confusion could well come from not knowing whether these sources are quoting for. Are they "pure titanium", or something else. Is Grade 1 guaranteed to be 100% pure?

Incidentally this also goes some way to explaining the higher temp setting on the dna - not all the way, but where before I said 270°F was right, it's more like 300°F based on a 0.0038 TCR. The rest of the difference could then explained either by pre-heat, or perhaps by the DNA40 using a curved Ni200 TCR (as Brandon alluded to in his brief response to my question re Ti offsets) - I didn't think the curve could be, well, curvy enough to explain much, but perahps that's wrong.

If that joyetech shows live ohms that would be super useful, we could work out what TCR it's using.

No live Ohms, sorry. Only things that shows live are temperature and applied wattage.

Regards
Tony

Sent from my keyboard through my phone or something like that.

 

[tchavei]

The grade 1 I have states it is 99.7% pure, and I think I've seen other statements of 99.5%. I would think that even .05% off from being pure could skew the .0039 they got in the 1959 study into a .0038. Who knows how far that decimal might actually go, and where a single round up vs. down could make a world of difference.

I actually read in a document it was 0.042 so TC might actually vary more than we think.

Regards
Tony

Sent from my keyboard through my phone or something like that.

 

[TheBloke]

No live Ohms, sorry. Only things that shows live are temperature and applied wattage.

Regards
Tony

Sent from my keyboard through my phone or something like that.

Fair enough, was too much to hope for - SXK and the Snow Wolf 200W (and therefore presumably also Sigelei 75W) are the only TC mods to do that.

 

[druckle]

I actually read in a document it was 0.042 so TC might actually vary more than we think.

Regards
Tony

Sent from my keyboard through my phone or something like that.

I would guess it would depend on what exactly the impurities are. My own experience with the wire I have says 0.045 is about right but that is accounting for error in the resistance measurement and the static resistance of the atty so 0.042 might be right for this specific wire by itself.

Duane

 

[jks89]

If there is variance in the impurities, it would make sense to me that its reaction to heat could vary slightly, and we might all have slightly different G1 wire even from the same source.

 

[Arthur]

So on my wire I got from Unkamensupplies I have the coef set to 350. I did increase my temp to 215C and my watts to 17 but I'm also using a different juice today. She's going pretty strong. Most hits land around 207C - 209C. I'm a happy camper.

 

[Felix1220]

maybe its a good idea to clean titan wires with alcohol befor use them

 

[TheotherSteveS]

new dna200 supports Ti out of the box. We are so mainstream here...lol!

 

[Quantum Mech]

Incidentally guys my findings with the Dicodes are now strongly suggesting to me that the TCR of Titanium Gr1 - or at least of the Zivipf wire, if it could vary - is 0.0038 not 0.0035.

I was getting a pretty weak vape at 0.0035 / 350. It's a little clouded because I'm using two new atties, a Rose v2 clone which has very tight airflow, and my new Elprinz which has more but I'm also not used to. At first I thought it was the builds, but then got quite a different experience putting it on my SXK.

I'm now running the Dicodes at 380 (0.0038) and it's definitely better. Still having to put the temperature higher than I expected - I'm on 235°C on the Elprinz right now - but it's definitely noticeably improved since I went up from 0.0035.

The literature is confusing on Titanium. Several sources say 0.0035, but then at least one, possibly two say 0.0038. Then that 1959 government study mostly found it around 0.0039 I think, but also said their samples were only 99.9% pure.

A confusion could well come from not knowing whether these sources are quoting for. Are they "pure titanium", or something else. Is Grade 1 guaranteed to be 100% pure?

Incidentally this also goes some way to explaining the higher temp setting on the DNA - not all the way, but where before I said 270°F was right, it's more like 300°F based on a 0.0038 TCR. The rest of the difference could then explained either by pre-heat, or perhaps by the DNA40 using a curved Ni200 TCR (as Brandon alluded to in his brief response to my question re Ti offsets) - I didn't think the curve could be, well, curvy enough to explain much, but perahps that's wrong.

If that Joyetech shows live ohms that would be super useful, we could work out what TCR it's using.

Nice one

Based on this as a starting point just set the SXK with -0.04ohms at 410f

Set to 38 was weak, jumped to 50 not protecting

Dropped to 45 and seems to be real close to how my M class runs now, cheers

 

[sahsah]

"And cotton Bacon is just...cotton" You're a funny guy.

ff is not rayon. It has been studied and been made especially for vaping purpose. I have tried both and i can say ff is far better in every aspect of wicking properties.
Don't try to say other are foul on subject you don't even know.

You didn't even watch carefully the pics in the post about ff, because at the first sight anybody can judge ff is not rayon.

Btw, you didn't even read the post because if you did, you would have solved your titanium issue since the link i put to buy ff also provide titanium wire from gauge 19 to 34 and numerous other kind of wire and wicking material.

You want to die like an idiot in order to be sarcastic. Good for you.

Dude, why are you so butthurt? You act like he insulted you personally or something...do you have some invested interest in FF or something, bc that seems the most apparent/likely explanation to me...(?)

 

[Quantum Mech]

I would guess it would depend on what exactly the impurities are. My own experience with the wire I have says 0.045 is about right but that is accounting for error in the resistance measurement and the static resistance of the atty so 0.042 might be right for this specific wire by itself.

Duane

Ok that's good to know cheers, with my low resistance on the sxk will stick with 45 or go a bit higher even

Got some of the wire you linked mate on order too, as will save me cleaning the stuff I have & can gift it to friends to try aswell

 

[tchavei]

maybe its a good idea to clean titan wires with alcohol befor use them

That should be mandatory with any wire but yes, the zivipf appears to be specially dirty. I lucked out and my spool appears not as bad as most.

I'm currently waiting for SV to release their Ti wire as it is submitted to mechanical cleaning before being spooled. Besides, it's a good excuse to try annealed Ti instead of hard drawn (zivipf).

Regards
Tony

Sent from my keyboard through my phone or something like that.

 

[druckle]

Ok that's good to know cheers, with my low resistance on the sxk will stick with 45 or go a bit higher even

Got some of the wire you linked mate on order too, as will save me cleaning the stuff I have & can gift it to friends to try aswell

I think it's good/almost mandatory to clean any wire. Even if it's advertised as pre-cleaned....an alcohol bath or somesuch can't hurt.

Not cleaning is like buying new cookware and making soup directly.

Duane

 

[Quantum Mech]

I think it's good/almost mandatory to clean any wire. Even if it's advertised as pre-cleaned....an alcohol bath or somesuch can't hurt.

Not cleaning is like buying new cookware and making soup directly.

Duane

oh ok

I will use my alcohol wipes then, instead of putting my marigolds on for a full scrubbing

 

[awsum140]

I wipe the zivipf with both isopropyl and PGA. Even after many, many, wipe I still get a sort of grey mark where I draw the wire through the cloth. When I oxidize it, after cleaning, there is not even a hint of smoke. I am guessing here, but I think the grey streak is actually "instant oxidation" coming off the wire.

 

[druckle]

I wipe the zivipf with both isopropyl and PGA. Even after many, many, wipe I still get a sort of grey mark where I draw the wire through the cloth. When I oxidize it, after cleaning, there is not even a hint of smoke. I am guessing here, but I think the grey streak is actually "instant oxidation" coming off the wire.

Wow...I haven't seen that but I haven't used zivipf wire. Do you still get the grey stuff if you run the wire through a "green scrubby" several times then wash it?

Duane

 

[awsum140]

That I haven't done and I have better stuff than "green scrubbies" that I used when I did plastic bumper repair. I'll give it a try next time I do a Ti coil.

 

[druckle]

That I haven't done and I have better stuff than "green scrubbies" that I used when I did plastic bumper repair. I'll give it a try next time I do a Ti coil.

My guess is that some component of the wire drawing lubricant is really adherent and there's some carbon particles or somesuch stuck to the wire surface that a fine abrasive might remove. Let us know what you find after you do your next Ti build. Just a guess.

Duane

 

[awsum140]

I'll do a test later this evening, if I have time. Now you've gotten me curious.

 

[Quantum Mech]

This mornings failed attempt in more way than one with a Ti Clapton

Was a right pita to do & then I get it in to what looked like it might just be useable

Nope, cotton cooking on gas mark 7 & was only hitting 170f