Titanium wire, vaping and safety

[tchavei]

Found something interesting... It's an article about nano granularity in Ti for medical application. Basically the article describes the problem of grade 2 and grade 4 (commercially pure) being coarse grained and thus too ductile for many medical applications. To avoid dangerous components of the traditional Ti–6Al–4V (AI and V are toxic), Ti grade 2 and 4 could be extruded to reduce grain size and double their yield strength so UGF (ultra fine grained) grade 4 could be as strong as Ti–6Al–4V and improve biocompatibility

Seems that there are indeed diferences for surgical applications although I seriously doubt we will notice it in our coils [emoji14]




Regards
Tony

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

 

[druckle]

Back.

No, no agreement with those guys BUT I did find 635 articles about unalloyed Ti at my University database. Looking through them as I write this.

Be right back

Regards
Tony

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

Duane

 

[speedemon]

So, what I've gleaned so far: 30ga should suit; I've looked online and found a place called unkamen on Etsy, who will sell 50' of 30ga for 9.95; when I get it, before using in a coil, I should wash it in soapy water, then wipe with alcohol... yes?

Another question occurs to me. How does it last, compared to kanthal? I can get months out of a kanthal coil, but then I dry-burn it about every 2-4 days -- my juice is a heavy gunker. How would the titanium hold up to that sort of use, since dry-burning it is a bad idea?

Thx y'all!
Andria

I got my 28 ga titanium from there good wire easy to work with!

 

[Madnapali]

Man, you guys were active while I was gone!

Anyway, since I finally have some titanium on the way, I have a question that I'm not sure has been answered. I normally roll with a genesis tank. Now, that means I need to pulse the wire to make sure I don't have hotspots or shorts. Since heating up Ti is not a good idea, what should I consider doing here?

 

[tchavei]

Wow. We have a book on titanium too. Fetching right now

Titanium

Authors:

Gerd Lütjering, James C. Williams

ISBN: 978-3-540-71397-5 (Print) 978-3-540-73036-1 (Online)

Damm I should go to bed... It's almost 3 am :/


Regards
Tony

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

 

[Thayamax]

Andria, I got my 28 ga Ti wire from Unkamen on Etsy on June 17. I built .32 ohm dual coils in my CLT v3 a day or 2 after that and I still have the same coils in there. I've rewicked and gently dry burned them without a problem and it's still working fine.

 

[druckle]

Wow. We have a book on titanium too. Fetching right now

Titanium

Authors:

Gerd Lütjering, James C. Williams

ISBN: 978-3-540-71397-5 (Print) 978-3-540-73036-1 (Online)

Damm I should go to bed... It's almost 3 am :/


Regards
Tony

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

Jim Williams is a buddy of mine. Believe him!

Duane

 

[tchavei]

Hi Tony,
How bout this paper Electrical resistivity of titanium in the temperature range from 290 to 1800 K - Springer
I could kill to look into it

Sent from my GT-I9505 using Tapatalk

Send me a pm with your email

Regards
Tony

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

 

[jks89]

Man, you guys were active while I was gone!

Anyway, since I finally have some titanium on the way, I have a question that I'm not sure has been answered. I normally roll with a genesis tank. Now, that means I need to pulse the wire to make sure I don't have hotspots or shorts. Since heating up Ti is not a good idea, what should I consider doing here?

You can heat it up, you just need to be careful about it. Once it starts going blue, you should probably call it quits. It's fine until it goes grey. I've been building dual coil, so I also want to heat it up beforehand so I can make sure they're at least somewhat close to even. I'll pulse at about 10w until I start seeing some color and make sure they're both coloring similarly.

 

[druckle]

Found something interesting... It's an article about nano granularity in Ti for medical application. Basically the article describes the problem of grade 2 and grade 4 (commercially pure) being coarse grained and thus too ductile for many medical applications. To avoid dangerous components of the traditional Ti–6Al–4V (AI and V are toxic), Ti grade 2 and 4 could be extruded to reduce grain size and double their yield strength so UGF (ultra fine grained) grade 4 could be as strong as Ti–6Al–4V and improve biocompatibility

Seems that there are indeed diferences for surgical applications although I seriously doubt we will notice it in our coils [emoji14]




Regards
Tony

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

The grain size of our cold drawn Ti wire is going to be really small in the un-annealed condition. There could be considerable grain growth after annealing depending on what annealing temperature is selected.
Bottom line is gonna be...
Vapers don't give a damn. It's all gonna be good for us.

Duane

 

[druckle]

Send me a pm with your email

Regards
Tony

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

I want a piece of that too if it's available.

Duane

 

[Madnapali]

You can heat it up, you just need to be careful about it. Once it starts going blue, you should probably call it quits. It's fine until it goes grey. I've been building dual coil, so I also want to heat it up beforehand so I can make sure they're at least somewhat close to even. I'll pulse at about 10w until I start seeing some color and make sure they're both coloring similarly.

I ordered four spools of different sizes and I'm probably gonna stop experimenting with Ni builds once it gets here. Or at least once my YiHi chip supports Ti settings. At least I've got plenty of wire to keep trying. So far it's been easy peasy with nickel, but that is mostly due to its super low resistance not shorting out on mesh. Titanium could be a different story; I perhaps may even keep the TC turned on when I'm pulsing it.

 

[jks89]

I ordered four spools of different sizes and I'm probably gonna stop experimenting with Ni builds once it gets here. Or at least once my YiHi chip supports Ti settings. At least I've got plenty of wire to keep trying. So far it's been easy peasy with nickel, but that is mostly due to its super low resistance not shorting out on mesh. Titanium could be a different story; I perhaps may even keep the TC turned on when I'm pulsing it.

I'd say (and I think many would agree) that you don't need to worry about waiting for the Ti support, as long as you can run ni200. Just start around 80-100F lower than where you would with nickel, and work from there until it's right.

The only downside with keeping TC on is that it's going to heat up to temp real quick, and then drop the power to 1 watt or less.

 

[Madnapali]

I'd say (and I think many would agree) that you don't need to worry about waiting for the Ti support, as long as you can run ni200. Just start around 80-100F lower than where you would with nickel, and work from there until it's right.

The only downside with keeping TC on is that it's going to heat up to temp real quick, and then drop the power to 1 watt or less.

Oh I definitely know that. I just don't want to learn one way and then stop doing it a week later haha. I already had a bit of trouble switching from a SX chip to a DNA chip today. Completely forgot how much simpler the DNA menu is lol.

And yeah, I'm just hoping that it will get hot enough for a second just to see if there is a hotspot. If not, back to the drawing board.

 

[tchavei]

Jim Williams is a buddy of mine. Believe him!

Duane

Well, I have 449 pages to read now [emoji14]

I want a piece of that too if it's available.

Duane

Done

Regards
Tony

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

 

[disley]

lemo 2, 9 wraps of 26g Ti. in the evic.
I

 

[disley]

The 24g was 11 wraps on a 3mm I.D kuro.
.43Ω, 30W, 370°F. in a Lemo 2, on the VF DNA40.
And vaping nicely.

 

[awsum140]

So, what I've gleaned so far: 30ga should suit; I've looked online and found a place called unkamen on Etsy, who will sell 50' of 30ga for 9.95; when I get it, before using in a coil, I should wash it in soapy water, then wipe with alcohol... yes?

Another question occurs to me. How does it last, compared to kanthal? I can get months out of a kanthal coil, but then I dry-burn it about every 2-4 days -- my juice is a heavy gunker. How would the titanium hold up to that sort of use, since dry-burning it is a bad idea?

Thx y'all!
Andria

You got the cleaning right and unkamen should be decent wire.

As far as gunking, YMMV, LOL. I use a liquid with caramel, cappuccino, chocolate and EM in it, among other things. Since I switched to rayon wick the gunking has dropped dramatically. Now, with TC, it's dropped even further. I have about 60-80ml through my current setup and the last time I checked the coils they were pretty clean, just starting to get dark. Every liquid and vaping situation is different though.

On another note, as far as medical grade 1 titanium or medical grade in general, from our perspective as vapers I think the real difference would be the "cleanliness" of the wire. Medical grade, assuming the finished product, would be sterile and very, very, clean.

 

[Uncletattoowhat]

OK..Google is my friend.
The FDA and ASTM have a specification for Unalloyed Titanium with respect to Medical Grade.
ASTM F67 - 13 Standard Specification for Unalloyed Titanium, for Surgical Implant Applications (UNS R50250, UNS R50400, UNS R50550, UNS R50700)
For a measly $45 one can see that specification.
I'm NOT that curious.




Duane

I have access to IHS Standards and was able to download a copy of ASTM F67. I shall have to read it later in my downtime.

 

[AndriaD]

You got the cleaning right and unkamen should be decent wire.

As far as gunking, YMMV, LOL. I use a liquid with caramel, cappuccino, chocolate and EM in it, among other things. Since I switched to rayon wick the gunking has dropped dramatically. Now, with TC, it's dropped even further. I have about 60-80ml through my current setup and the last time I checked the coils they were pretty clean, just starting to get dark. Every liquid and vaping situation is different though.

On another note, as far as medical grade 1 titanium or medical grade in general, from our perspective as vapers I think the real difference would be the "cleanliness" of the wire. Medical grade, assuming the finished product, would be sterile and very, very, clean.

Soap & water and then alcohol is plenty clean enough for me -- I've been "torching" my kanthal with a bic lighter and then rinsing.

It's good to note that maybe the TC could help with the gunking. I'm working on my strawberry & cream recipe, trying to substitute different strawberry flavors for the inawera shisha strawberry, because I know the organic nature of that is responsible for probably 50% of the gunking problem. But till I get the new recipe right, I'll be sticking with the shisha for my ADV.

I tried rayon some months ago, and at first really liked it -- I was still struggling to learn that "right amount" for cotton, but since you use so much more with rayon, it worked better for me -- at first. But unfortunately, I got a couple of seriously dry hits from rayon at one point, and the taste was so JUST PLAIN HORRIBLE, I went back to cotton. Now, everytime I try to use a rayon wick, I get a *hint* of that nasty rayon-dry-hit taste, and it's just nasty. So now I stick with organic cotton. I love how the japanese cotton wicks, and how fast/easy it is both to make the wick and get past the break-in phase, but sometimes I still use organic cotton from cotton balls; same taste, just not as good wicking, and not nearly as easy; the break-in takes MUCH longer, but it does seem to last longer before you start tasting "hot metal".

Andria