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.
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.
Flux can be in many different forms. it can be in the solder, it can be in a soft form like butter, or it can be in a pen like a tide stain stick. it is used on the solder iron and on the thing you're soldering to make a good surface for the solder to stick to. Basically it makes soldering easier, it can be done with out it.
Solder has traditionally been a tin lead alloy, but there are many variations depending on the application: jeweler's solder or silver solder, has always contained silver to prevent the solder from dissolving silver and/or gold from the item being soldered other low melting point metals are sometimes added to make low melting point solder pure tin solder is sometimes used to eliminate toxic lead etc. Solder sold in the form of wire is sometimes hollow…
After cleaning copper pipe and fitting, applying flux helps ensure that solder will adhere to pipe and fitting when joint is heated to proper temperature. Answer It depends on what type of 'flux' you are talking about? For example, 'electric flux' and 'magnetic flux' exists naturally, and is not 'for' anything in particular, although it can be made use of.
Flux is used to bond soldered metals together. The flux is spread onto both pieces of metal that will be soldered. If the metal is a wire, spread the flux on the metal part of the wire. Then heat the solder and place the two pieces being soldered together with a tongs or the tip of the soldering iron.
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.
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…