Factory soldered coils

[Coastal Cowboy]

I ran out of 2.5Ω coils and decided I liked the flavor with my Protank. So I hauled out my rebuilding gear again and decided to build one until the vapemail arrives.

I disassembled an old 2.2Ω coil head and slid the silica out of the coil to see where it had popped. Surprisingly, even though my Vamo and my multimeter said there was no circuit, the thing looked intact. So, I put it under 8x magnification and look what I found.

Solder joints that connect the legs to the actual coil. I had hoped to get this with better focus, but you can clearly see the two blobs of solder. I'd love to see the manufacturing process that does this.

 

[BigBen2k]

That's just silly; one should never solder a heating coil...

They're supposed to be spot welded (or mechanically attached), but ideally constructed from a single wire.

 

[EmeraldLeo1982]

It could be NR wire leads that are piss poorly welded? I dunno but I've noticed if I get a kink in my coil's leg it builds up a little blob like that too from juice gunk.

 

[Oomee]

They could be some form of micro crimp .
As said , won't be soldered due to the chemical nasties that you may imbibe .

 

[Coastal Cowboy]

That's just silly; one should never solder a heating coil...

They're supposed to be spot welded (or mechanically attached), but ideally constructed from a single wire.

Those could be spot welds. I just assumed they were solder joints.

I tossed the coil, but I should have tested the resistance of the conductors to see if the legs are conducting wire instead of resistance wire.

As it turns out, the coil I was rebuilding had other issues besides the popped conductor. The white grommet on the bottom was split and even my deft rebuilding skills couldn't get a clean closed circuit. So for now, all of the rebuilding apparatus goes back in the box.

 

[Coastal Cowboy]

It could be NR wire leads that are piss poorly welded? I dunno but I've noticed if I get a kink in my coil's leg it builds up a little blob like that too from juice gunk.

Yeah, I should have tested the legs to see whether they're conductors or resistance.

Next time!

 

[90quattrocoupe]

the coil I was rebuilding had other issues besides the popped conductor. The white grommet on the bottom was split and even my deft rebuilding skills couldn't get a clean closed circuit. So for now, all of the rebuilding apparatus goes back in the box.

First off, what brand of head was it?

I have had the same problem with some heads, and the grommets or orings. I have a few friends that don't rebuild, so I get theirs. Some I rebuild, some I use for spare parts.

Greg W.

 

[BigBen2k]

...
I tossed the coil, but I should have tested the resistance of the conductors to see if the legs are conducting wire instead of resistance wire.
...

Oh I see; the lead wires are bigger gauge than the coil wire. That makes sense.

 

[HDVaper]

I've NEVER seen that. Must not be authentic Kangers??

 

[LucentShadow]

Hmm. The few factory coils that I've replaced on Protank heads have looked to be welded end-to-end at the joints, which is the way that I do my own coils.

Mine have all been split, as well, with half of the coil turns pushed to each side of the wick, and around a 3/32" gap in the middle.

 

[Scoop224]

Get yourself a Zapper, Problem solved.

 

[Coastal Cowboy]

First off, what brand of head was it?

I have had the same problem with some heads, and the grommets or orings. I have a few friends that don't rebuild, so I get theirs. Some I rebuild, some I use for spare parts.

Greg W.

I've NEVER seen that. Must not be authentic Kangers??

I'm not sure whether it was a genuine Kanger or FT clone. I've bought both in the past and never bothered to sort them.

 

[bfrie]

Real kangers have that as well, but not until recently. That is no resistance wire welded to resistance wire to prevent the legs from getting hot by the rubber grommet and burning it

Sent from my SPH-L710 using Tapatalk 4

 

[BigBen2k]

Get yourself a Zapper, Problem solved.

Is that some form of DIY spot welder?

You can make one out of an old microwave transformer: How-to: Build your own spot welder

 

[Coastal Cowboy]

Is that some form of DIY spot welder?

You can make one out of an old microwave transformer: How-to: Build your own spot welder

This looks like me when I tried building my very first coil ever.

 

[LucentShadow]

Get yourself a Zapper, Problem solved.

Is that some form of DIY spot welder?

You can make one out of an old microwave transformer: How-to: Build your own spot welder

Here is a link to a modding thread describing how to build one:

http://www.e-cigarette-forum.com/fo...095-resistance-no-resistance-wire-welder.html

They work well, with some experimentation to dial-in the right amount of capacitance and voltage for the given wire.