The materials being soldered.
Flux is used to prevent oxidation while soldering wires and components in electronics.
A: The pad is not clean it has tarnish or wrong solder with not enough soldering flux. Finally not enough heat.
One gallon of Kester 951 Flux weighs about 8.34 pounds. Flux is used for soldering purposes and is widely used in the making of electronics.
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.
Look at the 'bit', the part that gets hot that you do the soldering with. It should have an inclined flat surface on the end. If it has not, make one by using a file. Heat the soldering iron up. At the same time get the solder out, which should be tin solder with internal flux. When the iron is hot, quickly file the surface of the bit clean and apply the solder, which should immediately 'take' to the surface. That's it.
Flux helps promote soldering. Soldering paste might contain flux and other items to help promote soldering. The paste helps hold the flux in place while beginning to solder.
Flux is used to prevent oxidation while soldering wires and components in electronics.
A: The pad is not clean it has tarnish or wrong solder with not enough soldering flux. Finally not enough heat.
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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.
A state of continuous movement or a medium used in metal soldering.
Soldering iron, solder, flux
One gallon of Kester 951 Flux weighs about 8.34 pounds. Flux is used for soldering purposes and is widely used in the making of electronics.
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.
A: It refers to adding unneeded flux to a connection while soldering that connection
In soldering, the function of a flux is to clean the metal surface such that the solder may adhere. Rosin was one early flux, and pastes loaded with HCl were also common, though the HCl left over caused corrosion. I don't know about ancient times however.