Help Me Please. My Weller Soldering Station Has Gone Off.

[ivconic]

On second though; those are not projected very well at all.
Dying rate is huge. Among all other possible house appliances ; induction cooker will die first.
One or two IGBTs are mounted along with rectifier bridge on the same Alu cooling plate, which is usually not large enough to provide proper cooling.
Under the whole setup there is tiny fan. Usually sucking the air into enclosure. I find those always pretty messy and greasy.
Also pcbs are having greasy areas. Fumes and other various products from cooking are sucked right into the enclosure and pcb is on direct hit from those.
Learning more on IGBT's nature; things becomes even more weird when you see such setup with massive and very strong current coil over the pcb and electronics on it.
Things becomes self explanatory now when you analyze these aspects...

[ivconic]

Despite that there is even a Patent (US5070222A) that claim something your friend alike:

"..... at least one high permeability foil disposed so as to direct electromagnetic flux
generated by the induction producing element to the cooking location."

take in account location and design of such one foil (support plate), I think that according to the law of EM
physics such one change in EM flux direction by induction coil Ferrite plate support is not possible (It is not
designed as Transformer Ferrite core pots).

Such plate in on inductions cooker fact act in first line as EM flux absorber to prevent induction cooker to
cook himself out (to fry cooker inner steel parts) along with cooking food.

Patent related to this:

https://patents.google.com/patent/US4629843A/en

Yes it is funny setup.
Induction cooker coil is placed just above and very close to pcb.
There are sensitive chips on pcb. One of them probably PWM controller.
There are no markings on several such chips that i saw so far, so i can't tell what are they.
But i suspect those are dedicated mcu's.
Also i saw eeprom on one pcb.
So is weird to place coil just above pcb, i was scratching my head upon that.
But than i spotted those plates and got the explanation.
It is fascinating to see the theory in real life practice, like that.

[ivconic]

Halbach coils (and magnets) direct the field to one side. But do you want to swing a 5 kg coil?

Is heavy, true.
But maybe really thin plates... or if possible coating from such material?
I've seen very thin "pots" made from such material, so is possible to mold with it.
Question is; is the thickness playing any role in overall efficiency?

[WM6]

I got explanation from more conversant friend; to direct EMF only to upper side!

Despite that there is even a Patent (US5070222A) that claim something your friend alike:

"..... at least one high permeability foil disposed so as to direct electromagnetic flux
generated by the induction producing element to the cooking location."

take in account location and design of such one foil (support plate), I think that according to the law of EM
physics such one change in EM flux direction by induction coil Ferrite plate support is not possible (It is not
designed as Transformer Ferrite core pots).

Such plate in on inductions cooker fact act in first line as EM flux absorber to prevent induction cooker to
cook himself out (to fry cooker inner steel parts) along with cooking food.

Patent related to this:

https://patents.google.com/patent/US4629843A/en

[Carl-NC]

Using the analogy; maybe search coils for detectors can be "directed" in similar fashion?

Halbach coils (and magnets) direct the field to one side. But do you want to swing a 5 kg coil?

[ivconic]

bad idea. buy this tester and measure EMF. inform us. https://aliexpress.ru/item/328623543...312.1578393212

The other day i dismantled few inductive cookers.
I posted the photos showing only upper side of coils.
I forgot to shoot and post lower side of coil setup and holder.
Plastic holder at the lower side is fed up with ferrite-lookalike plates, covering lower side.
Why the heck...?
I got explanation from more conversant friend; to direct EMF only to upper side!
So, inductive cooker is "irradiating" EMF mostly at upper side.
While at the lower side EMF is suppressed and weaken to possible limits.
Such instrument, KT; maybe can show us the relation of EMF strength and flux between upper and lower sides of inductive cooker coil.
Using the analogy; maybe search coils for detectors can be "directed" in similar fashion?
We all need good sensitivity and larger depths only from lower side of a coil, right?


Xtrem can cover his coil from all sides and prevent spreading of EMF and risking sensitive electronics on the bench.
Otherwise his soldering tool can be at the same time chip&memory erasing tool too, for the same price!

[kt315]

bad idea. buy this tester and measure EMF. inform us. https://aliexpress.ru/item/328623543...312.1578393212

[Xtrem]

Xtrem that's original idea, i must say that.
Induction heated tips!? ha!
I suppose you must act fast when soldering; because tip is getting cooler fast?

Imagine , you dont have cable cord hanging around, the handle is cold ,
you can solder everyvere , heat is very fast , i think its over 400 C in 10 sec.
im not novice in soldering , i have 3 magnastat , 2 are working , i never use these
again. ITS FOR YOU , TRY IT , you have the parts .

[ivconic]

Second important aspect: the computer inside the car!
As long as there is computer inside, controlling the car: that long is possible to place the limits in code and to program the date when car will die.
Now... this looks like just another conspiracy theory.
But only in minds of common consumers and believers.
It is not my main occupation... but occasionally i get some modern OBD's to reprogram, to install some hack, to prolong trials etc.
So by now i got pretty good insight in those and all the capabilities.
It is so obvious that so many things are pretty controlled and LIMITED by the car computer.
It becomes total nonsense!
Slight possible tolerance coming from some sensor; will provoke computer to act and prevent you to use car... until you cache out decent sum!
Recently i had chance to "peek" into most modern and lunatic expensive OBD and its detailed options and functions. Total nonsense.
And total control!
Year licence to use that OBD is over 1000 euros! (will not name brand and model)
Price of the OBD is ~5000 euros and year licence 1000e !!! C'mon!
And than you have the car system totally opened and disclosed.
And than you can clearly see all the madness and nonsense of this sad "modern" times!
And than you can realize that consumers are nothing but most stupid flock of sheep in all history!
Bigger the scam and fraud; more mad consumers will want to waste hard earned money and have it!
To finally have it... and to enjoy it just for a while, just for a strictly LIMITED time!
Ehm... modern times, modern world...



Speaking of soldering irons... solder... cold joints etc.

[ivconic]

"...One thing i know for sure; less lead in solder = more cold joints on pcb..."

Slightly off topic.
But funny!
Don't know about you folks... but for me: the worst possible "modern" cars you can buy today are ... French cars!
Especially Renault! Any model.
Paradox is; those are most sold cars today!?
Damn Renault will last and serve you EXACTLY the period under warranty.
A day after warranty expires; Renault will DIE HARD!

...
I never had Renault on my own... except once in deep past that i recall one Renault 4 that i had for one year.
But i am surrounded with stupid people, the "consumers", who massively driving Renault.
So... sooner or later; i simply had to face and deal with that problem. Mostly because of my curiosity.
Now... don't take me wrong; i don't have anything against Renault, nor French cars generally.
Nor i am putting here accent only on Renault. ALL those are the same crap, more or less.
I can name even Mercedes middle class models as totally crappy cars!
"Modern times". No quality. Only crap around.
So i did my own investigation on this problem and i came up to some conclusions.
1) Generally all world wide car manufacturers are making crap lately!
2) "Modern" French cars are the WORST ever in history.
3) Renault is No. 1 on the "WORST EVER" list.
...
BTW there is a joke here in Serbia, the question: "if you climb up to the moon, stand there and take a look back at planet Earth: what are the most visible shapes that you will most certainly recognize from there?"
Answer is: " Chinese great wall and.... Renault scrapyard!!!"


Why generally cars are crappy today? Why those last as long as the warranty from the manufacturer?
First of all; all "modern" cars today are having "computer" inside.
Second; all "modern" cars are totally fed up with "zillion" of totally nonsense "sensors" and "brains".
In 99% of cases Renault will die because of some sensor or/and computer malfunction.
In 99% of 99% cases from above; main cause will be ... cold junction... somewhere on computer pcb or in path to the sensor.
In 99% of the 99% of the 99% from the above; they will skin you like a poor cat when fixing the "problem" in their service.
...
That's the major "philosophy" in "modern" and "rich" societies today. Say... "mad consumer" societies.
You are simply not allowed to buy and use some thing for long period. You must be a lifetime consumer. You must buy new stuff periodically.
When it comes to cars; 5-7 years is most that you can expect.
(my Opel is 30 years old, still alive and kicking... but it has only engine and "four wires")
...
Why they totally banned lead from modern electronics?
Probably to get more cold junctions!

[ivconic]

I used to use a Weller soldering station, but (if I recall correctly) the transformer died. Then I had a cheap one from Maplin (who have since gone bust) and that lasted quite a long time. The soldering tips were always rubbish though. Since then I've used Antex soldering irons, as they're suitable for the leadless solder we have to use nowadays. Mostly I use the 25W, but also have a 15W and 80W.
Just remembered that I still have an old working Weller Expert soldering gun, type 8200D, 100/140W.

I can't even count nor name other soldering tools that i also have.
NONE of those gives me any satisfaction.
I am perfectionist when it comes to pcb and soldering.
Over the years I have developed a great deal of impatience and disgust towards messy soldering and overall messy pcbs.
If i do something; it must be perfectly clean and neat. Otherwise i wont do it.
And Magnastat provided me exactly that; the neatness.
"...The soldering tips were always rubbish though..."
That depends how long you recall the past.
20-25 years before tips were much better and of high quality.
I remember i could make least dozen detectors before i even notice some shaded changes on the tip.
Today is different. Tip becomes shaded after few hours.
Start taking apart and loosing particles after few days, best case few weeks.
Maybe i got it all wrong; maybe is not about tips quality ... but is about solder content? (now when you mentioned it)
Maybe something in "new fashion"-solder content is causing tips to decompose faster?
I know lead is poisonous, alright. But i don't understand why "they" banned lead from the solder?!
WTF?
PCB is usually closed in some device enclosure. Solder on pcb is usually thin, narrow and coated, except the holes.
So i don't see how such "lead"-ed pcb can present any danger or health hazard?!
Allegedly the whole story is about human health? Right?
To satisfy some "standards" ... "they" pressed globally?
...
Don't know. Not sure. But I'm not doing well in these "modern" times... last 15-20 years.
One thing i know for sure; less lead in solder = more cold joints on pcb.
...
The other day i was about to post.. than i deleted half of that post... to avoid to be beaten by bad luck... to avoid jinx!
But now is confirmed:
i bought on Ebay the same Weller Magnastat WTCP-S in BRAND NEW NEVER USED MINT STATE!
The old one. The one i am talking about. The one 20-25 years old.
Never used!
Price is 160e.
Will arrive soon.
Looking forward!

[ivconic]

But now i think i have the best solder station of the
world ,and the cheapest, he he he, do not laugh,
TRY IT.
It is a makeshift construction, and no more permanent
than the temporary one. can be improved and made perfect.
im using this for the last 5 months , and working
better than ever, the little pcb doing nothing now.
it has to be improved to.
The BIG (little) secret is the cheap chinese tips are
made inside with iron , so the induction is working
perfect.

Xtrem that's original idea, i must say that.
Induction heated tips!? ha!
I suppose you must act fast when soldering; because tip is getting cooler fast?

[Qiaozhi]

I used to use a Weller soldering station, but (if I recall correctly) the transformer died. Then I had a cheap one from Maplin (who have since gone bust) and that lasted quite a long time. The soldering tips were always rubbish though. Since then I've used Antex soldering irons, as they're suitable for the leadless solder we have to use nowadays. Mostly I use the 25W, but also have a 15W and 80W.

Just remembered that I still have an old working Weller Expert soldering gun, type 8200D, 100/140W.

[Xtrem]

[Xtrem]