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Working with Titanium wire.

Lovely old job, have updated TCR values in the evic and the koopor, still running too hot in the koopor. Have to offset 150°f lower on the koopor. Cheers @Tubbyengineer
 
I'm using titanium for a month on my evic vtc mini, now using TCR set at 366, and I still can't vape in a decent way..
I have a 0,4mm wire that I use for 2,5/3mm diameter coil with 6-7 wraps spaced.
when I lock the resistance it works but after 15-20ml the coil and cotton are burnt (230°C at 18/20W - 0,38ohms)
I never did dry burn and I clean the wire with hot water and soap before to use it.
 
I'm using titanium for a month on my evic vtc mini, now using TCR set at 366, and I still can't vape in a decent way..
I have a 0,4mm wire that I use for 2,5/3mm diameter coil with 6-7 wraps spaced.
when I lock the resistance it works but after 15-20ml the coil and cotton are burnt (230°C at 18/20W - 0,38ohms)
I never did dry burn and I clean the wire with hot water and soap before to use it.

Which Ti are you using as a matter of interest? When you feel it starting to burn a bit, maybe try re-locking down the post screws. I found sometimes that Ti can loosen up after a few hits and things tend to go haywore if you dont keep everything tight!
 
Ok so I've decided to start a thread for all those working with Titanium wire.

I received a reel of Grade 1 Titanium from @stealthvape, and I'm sharing my early experiences and a bit of research I've done hopefully others will share too....

First off Dry burning: In the traditional sense this is a definite no no, Titanium can burn quite ferociously and it's not easy to put out, in fact only specialist Powder extinguishers will douse the flames. You can however do a controlled "Dry burn" by turning the mods temperature up to it's maximum and firing.
Titanium readily reacts with oxygen at 1,200 °C (2,190 °F) in air, and at 610 °C (1,130 °F) in pure oxygen, forming titanium dioxide. Providing you keep below the 1000 celsius level there is no danger of forming TiO2.

For those of you not familiar with what temperatures are indicated by the glow visible from a coil heres a chart that indicates it quite handily...

View attachment 62207

You can see from this that the more shall we say insane among you may be able to control the temperature manually by firing until the appropriate glow is seen but I would heartily advise against it as the risk is pretty large and at the max temperature of most mods dirt will burn off the coil anyway.

Titanium Dioxide: Theres been a lot of talk about how dangerous Titanium dioxide is so here's a quote from good old Wikipedia:

Titanium dioxide dust, when inhaled, has been classified by the International Agency for Research on Cancer (IARC) as an IARC Group 2B carcinogen, meaning it is possibly carcinogenic to humans. The findings of the IARC are based on the discovery that high concentrations of pigment-grade (powdered) and ultrafine titanium dioxide dust caused respiratory tract cancer in rats exposed by inhalation and intratracheal instillation. The series of biological events or steps that produce the rat lung cancers (e.g. particle deposition, impaired lung clearance, cell injury, fibrosis, mutations and ultimately cancer) have also been seen in people working in dusty environments. Therefore, the observations of cancer in animals were considered, by IARC, as relevant to people doing jobs with exposures to titanium dioxide dust. For example, titanium dioxide production workers may be exposed to high dust concentrations during packing, milling, site cleaning and maintenance, if there are insufficient dust control measures in place. However, the human studies conducted so far do not suggest an association between occupational exposure to titanium dioxide and an increased risk for cancer. The safety of the use of nano-particle sized titanium dioxide, which can penetrate the body and reach internal organs, has been criticized.[59] Studies have also found that titanium dioxide nanoparticles cause inflammatory response and genetic damage in mice. The mechanism by which TiO2 may cause cancer is unclear. Molecular research suggests that cell cytotoxicity due to TiO2 results from the interaction between TiO2 nanoparticles and the lysosomal compartment, independently of the known apoptotic signalling pathways.

NIOSH recommends that fine TiO2 particles be set at an exposure limit of 2.4 mg/m3, while ultrafine TiO2 be set at an exposure limit of 0.3 mg/m3, as time-weighted average concentrations up to 10 hours a day for a 40-hour work week. These recommendations reflect the findings in the research literature that show smaller titanium dioxide particles are more likely to pose carcinogenic risk than the larger titanium dioxide particles.

Actually building a coil from Titanium is pretty simple, it is very springy and pretty tough so a good pair of cutters are essential, once you've formed your coil it will need some squeezing to form a decent microcoil but thats easily done with tweezers if you fire the coil at Max temp first then squeeze (Or use ceramic ones while squeezing). Once you got your coil formed Titaniums toughnes will mean it stands up to pretty much any kind of handling that a Kanthal coil will take without the slightest problem, in fact if you are fitting a coil in something like a heron then you are probably going to have to go back in and tension the coil back up to the right size after a few hours, as the coil will tend to expand back out to a larger diameter.

I've found on the SX Mini M class with the 2.23 Firmware that I have to run it up at about 430f as opposed to the 370f or 380f that I used with Nickel coils.

Flavour wise I'm not noticing a great difference and The wick isn't gunking up any more or less than with Nickel...
hi tubby
are you saying vaping with TI makes cancer cells ?
 
No he's not mate he is saying don't dry burn ti wire unless in temp mode [emoji5]

was using it in power mode the other day :(

but never dry burned

looks like iv got alot of reading to do
temp mode is next for me to try
thanks for reply
 
hi tubby
are you saying vaping with TI makes cancer cells ?
NO, It's very safe as long as you don't overheat it. Titanium Dioxide has been linked to cancer, but so have a number of other common metals - most of them in some form of Oxide though. Titanium is Flammable, it's also pretty difficult to put out - fortunately in the quantities involved in coils you'll only geta brief but very hot flame...
Really unless you're using it in Premade stock coils it's a wire strictly for experienced builders...
 
my TI is now locked away in a safe place now -dont want that sitting near me on pub nights :) -

TY
 
This topic should be read by the vapers atleast one because safety's always first.
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