Brand new JBC tip stripped?

[Zung]

I'm not 100% sure, but I think Ali's base currency is the USD. So I always pay in USD, and get refund in USD.

 

[SomeJoe]

So I always pay in USD, and get refund in USD.

Thanks for the tip, makes sense.

 

[elektryk]

somewhat useless shapes for me: super fine conical, "S" conical, knife...

Super fine tip is useless to me also but with knife type I can successfully solder SMD IC packages similar way like with miniwave type.
J shape is good for SMD caps and resistors.

It works well so far. That company previously made the T3A station which seemed well regarded on youtube channels, and there was a teardown of this T320 successor which showed sound construction. I took the kit with the 3 basic tips to try my hand first with the direct heating thing. A genuine JBC tip on amazon here will cost like 2/3 of the whole Aixun station, that's why I tied the aliexpress "deals".

I thought about it but finally I ended up with DIY station compatible with T245.
Those stations aren't trouble free.
https://www.eevblog.com/forum/reviews/aixun-t3a-misbehaving-on-grounded-pcbs/

 

[SomeJoe]

I'm no expert but from what I've seen in EEVblog videos, since the ESD-safe stations are grounded to the mains none will behave normally if soldering an otherwise grounded pcb (like connected to an o-scope for example) ?

 

[elektryk]

Most reports that I've seen was about Aixun but yes it can also affect other stations where both conditions are met:
-tip ground hardwired to the mains ground,
-the same wire for thermocouple and tip ground (common situation in cartridge type tips).

 

[HpW]

IME a real JBC is hard to beat. I find it so much better than all the Weller "industrial" stuff I've used for decades.

Well, what kind of JBC tip shape(s) are you using for 0.8....1.5mm solder wicks? As my Weller WE-1010/WECP20 manages those any better.

 

[KSTR]

@HpW, I usually use the tip that's currently fitted unless it's a very small and thin 'needle' type. For wider wick (5mm etc) a wide chisel tip is needed, though.
And you always have the option to temporarily increase preset temperature

 

[HpW]

@KSTR, as I have the T210-A handle & tip's using C210 as for 402 SMD's

Do you use the T245-A handle & tip's series C245??

 

[gabinetex]

What temperature did you use when tinning the tip?. I find JBC tips are more susceptible to oxidation due to high temps than other brands. And I think that is more the case with brand-new tips (although I'm not 100% sure of that last part, could be my imagination)

With brand new tips I llike to use ultra-low temps (280C or so) for the first hour or two of use. Then I raise the temps if needed, but never ever above 350C, (unless absolutely necessary for specific solder joints).
I find that 350C is the imaginary line that separates soldering bliss from soldering hell.

If I were you, I would get one of those small brass toothbrushes that people use for cleaning their 3D printers, and remove the blackened area of the tip, then re-tin it at 260C or so, and leave it loaded with solder at that temp for a few minutes. Soaking-in so to speak. You can then start soldering, progressively raising the temps and see how you're doing.
The good news is that as long as you keep it below 350C, oxidation build up is so slow that you can almost ignore it.

 

[Mark Tillotson]

New tips can be first heated in flux and tinned under the flux for best results.

 

[elektryk]

New tips can be first heated in flux and tinned under the flux for best results.

It is also good to run new tip at low temperature for some time.

 

[BATE VANKO]

4910 - Tip Tinner.

https://mgchemicals.com/products/soldering-supplies/tip-tinner/soldering-tip-tinner/

https://www.mouser.com/ProductDetail/MG-Chemicals/4910-28G?qs=YqNA2qefETD9S0sOZrKjqg==

It's a product that works perfectly well. Try it first and.... you can thank me later.