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Very simply flux reacts with surface corrosion and washes it away, making the metal surface being soldered easier for the solder to wet and producing a more solid and reliable joint, both mechanically and electrically.
Acid flux is more aggressive and acts faster than rosin flux, but must be washed off completely with water as soon as the joint cools because the acid will slowly attack the metal of the joint. As electronic circuits usually should not be washed with water, only rosin flux should be used on electronics because it can be left on the completed joint without damaging it.
What else can I help you with?
Why is flux required for soldering?
flux acts as a wetting agent in the soldering process, reducing the surface tension of the molten solder and causing it to better wet out the parts to be joined.
What tools are needed to solder circuit boards?
Soldering iron, solder, flux
What is flux remover?
When circuit boards are assembled, the parts are soldered on. In order for the solder to make a good connection to the parts and to the board, a substance called flux is mixed into the solder. It removes oxidation and cleans up the surfaces of the different parts so that the solder can stick to them. After the board is assembled, there is still flux on the board. Flux remover dissolves the flux and washes it away.
Why do plumbers use flux?
Plumbers use flux to help clean and prepare surfaces for soldering. Flux removes oxidation and contaminants from the surface, allowing for a stronger bond between the pipes and solder. Additionally, flux helps the solder flow evenly and smoothly, ensuring a proper seal.
What is flux used for when soldering?
Flux is used to keep metals from oxidizing. Solder will not bond well with copper-oxides which are formed when copper is exposed to high temperatures (ie a soldering iron) the flux prevents the oxidation. If you were to solder without flux the solder joint would be weak and possibly completely nonconductive.
What flux and what solder is used to solder boat propellers?
The majority of boat props are aluminum. You can't solder it, it has to be welded or heli arced.
Is flux in solder?
Yes, flux is a material commonly used in soldering to clean and prepare the metal surfaces being joined. It helps remove any oxide layers, promotes better wetting of the solder to the surface, and enhances the overall soldering process by ensuring a strong bond between the materials.
What is used to help solder stick to metal?
Flux cleans the metal and helps the solder stick.
What is a multicore solder?
Solder comes in 2 basic varieties, solid and rosin-core. Simple rosin-core solder is a tube of low-melting-point metal with flux filling the single core down the center. Multicore solder has multiple hollows in it, each filled with flux.
What is the purpose of core in hollow solder wire?
To facilitate the soldering process, a chemical material called flux can be used to remove oxidation from the surface, keep the air from oxidizing the surfaces during soldering, and to aid in the flow of solder through the joint. Fluxes can be found within the solder (cored solder) or separately in paste form.
Why does my roll of solder have a date of expiration on it?
Solder has an expiration date because of the flux content. It does not go bad-per say, but the flux will dissipate out of the solder after a while. It's still useable, but the flux content may be slightly diminished. Also, over time the solder oxidizes. For home or hobby use, it's fine. But in a manufacturing atmosphere, you need to be prepared to throw some away every year.
Where can you find copper colored solder?
Copper colored solder can be found at http://www.beadmeus.com/coppercolorsolder.aspx the flux is included in the soldering rod.
