How to make a liquid flux for intractable points welding 

Do rust removers also damage the soldering tip?

@@ashchbkv6965 yes they do as the acid in them also attacks the plating. Unfortunately all fluxes tend to. It all depends how harsh the flux is. Knowing that the plating is very thin on the soldering tip we have to take care what to use. It is best to clean the surfaces with some steel wool or fine sandpaper before soldering. The flux also makes some kind of cover not to let the surface oxidize as with heat surfaces although cleaned tend to oxidize faster when heated. I tried soldering on aluminum as well this time I used cooking oil and keeping the solder under the oil not to let oxygen touch the material. I succeeded in this as well.

Thanks for the tips! The most applicable task for this is soldering batteries because its fast reaction which doesn't heating much the batteries and not damaging them. We should just use cheap ass soldering iron 👍

Excellent. Fosforic acid has even a better effect than HCl with dissolved Zinc added to less corrosion in the tip and circuit parts. Dentists use Phosforic acid in their jobs. It is very cheap and small amounts are necessary to aid soldering steel or stainless steel with regular electronic solder

@@pafunleal3849 k

That's exactly what I wanted to write! Don't forget to clean the items after soldering with that stuff!

🤣 I was thinking the same thing about the HC in the wobbly cup, including being something I am likely to do. BRAVO!

And I have made this. It works very VERY good!!

3ich abro hahah

The concentration ratio does not matter, the more concentrated the acid, the more zinc it needs

If the zinc percentage is sufficient, the acid will be diluted to a degree that does not harm the skin

wash hands after use is sufficient, use vemtilation, wear eye protection.

It was zinc from the battery internal cover

It is zinc metal

They have the zinc on the outside so they are saline batteries.

It is only recommended for hard to weld areas

@@hummmhowto2493 Teşekkürler.

@@hobimevdeelektronik9333 You are welcome

So use the sulfuric acid from an automotive battery instead of HCL my friend 😊

Muratic acid is essential the same as hydrochloric acid. .. . should be able to find at any hardware store .

The reaction of zinc with the acid dilutes the acid to become usable

@@hummmhowto2493 thanks again and again i made it and it is very good solution for many kinds of soldering . wish to you all the best my brother

The best way is to add more zinc. If there are left over unreacted zinc that means all the acid is used up to dissolve the zinc so the solution should be quite safe. If I still remember my chemistry, the solution is Zinc Chloride.

@@thiamjoo thanks a lot dear brother

@@thiamjoo also referred to as 'killed spirits'

zinc chloride us almost universally considered unsuitable for electronics soldering. it's a good flux for morons like me who can't solder because it's really effective, but i've always been careful to wash the part clean and also i'm not doing serious work. it's a traditional flux for things like plumbing, but if you're struggling with electronics joints then basically you're supposed to learn how to solder better, because it tends to be corrosive even if you didn't leave excess acid in it. in general, you should be very suspicious of the long term corrosive power of stray chloride ions. fwiw, you can buy ZnCl very cheaply in a nice secure bottle in hardware stores

@@5naxalotl Boa tarde amigo, sou do Brasil, esse fluxo daria certo para soldar latão? mesmo que depois de usar o fluxo eu jogar agua com bicarbonato de sódio para cortar o efeito do ácido, será que ele correi o latão? USANDO O GOOGLE TRADUTOR Good afternoon friend, I'm from Brazil, would this flux work for soldering brass? even if after using the flux I throw water with sodium bicarbonate to cut the effect of the acid, will it run the brass?

The concentration ratio does not matter, the more concentrated the acid, the more zinc it needs. The best way is to add more zinc. Until the reaction process is over.

If the zinc percentage is sufficient, the acid will be diluted to a degree that does not harm the skin

@@hummmhowto2493 I just hoped you gave us some pourcentage. Like how much Zink (Battery scrap) for mL of Acide....

@@DrZipZwan Gradually add until zinc becomes insoluble in acid

@@hummmhowto2493 Thx you ))

Yes

Work

Gradually add until zinc becomes insoluble in acid

Zinc only reacts with the acid to dilute it

No, My friend, you need to clean after use

Possible but does not give a result like chlorhydric acid

Ask to AAA or AA cell it definitely have zinc because zn is the part of battery .

@@omsingharjit There is no pure Zinc anymore in batteries, especially the chinese ones. There is galvanized steel which has a thin layer of anodized zinc. But you can find PURE ZINC in 1 cent dollar coins after 1983. They are just covered by a thin layer of copper. Thanks and best of luck

@@pafunleal3849 without zinc this battery will not work ,zinc carbon battery named because of Zinc , zinc is one of it's chemical parts .

@@omsingharjit Zinc is in the form of galvanized steel as I said,, in the external cover no more pure zinc as in the past. Zinc is not magnetc...try a magnet in what you call zinc from a modern battery and you will see

@@pafunleal3849 first learn how Zinc carbon battery works you can try wikki

No, my friend, it's not work

Hydrogen peroxide will will work negatively because it's one of Great oxsidizer .

Cheap Tiles cleaner is made of Hydrochloric acid known as muriatic Acid use that .