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2. Flux (metallurgy) - Wikipedia

   en.wikipedia.org/wiki/Flux_(metallurgy)

   Rosin used as flux for soldering A flux pen used for electronics rework Multicore solder containing flux Wire freshly coated with solder, held above molten rosin flux. In metallurgy, a flux is a chemical reducing agent, flowing agent, or purifying agent. Fluxes may have more than one function at a time.

3. Rosin - Wikipedia

   en.wikipedia.org/wiki/Rosin

   In industry, rosin is a flux used in soldering. The lead-tin solder commonly used in electronics has 1 to 2% rosin by weight as a flux core, helping the molten metal flow and making a better connection by reducing the refractory solid oxide layer formed at the surface back to metal. It is frequently seen as a burnt or clear residue around new ...

4. Solder paste - Wikipedia

   en.wikipedia.org/wiki/Solder_paste

   Rosin based fluxes are made with rosin, a natural extract from pine trees. These fluxes can be cleaned if required after the soldering process using a solvent (potentially including chlorofluorocarbons) or saponifying flux remover. Water-soluble fluxes are made up of organic materials and glycol bases. There is a wide variety of cleaning agents ...

5. Soldering - Wikipedia

   en.wikipedia.org/wiki/Soldering

   For many years, the most common type of flux used in electronics (soft soldering) was rosin-based, using the rosin from selected pine trees. It was nearly ideal in that it was non-corrosive and non-conductive at normal temperatures but became mildly reactive (corrosive) at elevated soldering temperatures.

6. Solder - Wikipedia

   en.wikipedia.org/wiki/Solder

   The two principal types of flux are acid flux (sometimes called "active flux"), containing strong acids, used for metal mending and plumbing, and rosin flux (sometimes called "passive flux"), used in electronics. Rosin flux comes in a variety of "activities", corresponding roughly to the speed and effectiveness of the organic acid components of ...

7. Desoldering - Wikipedia

   en.wikipedia.org/wiki/Desoldering

   Desoldering braid, also known as desoldering wick or solder wick, is finely braided 18 to 42 AWG copper wire coated with rosin flux, usually supplied on a roll. Solder wick, before use... and soaked with solder and residue. The end of a length of braid is placed over the soldered connections of a component being removed.

8. Stencil printing - Wikipedia

   en.wikipedia.org/wiki/Stencil_Printing

   The stencil life is defined as a time period in which there will be no significant change in the solder paste material characteristics. A solder paste with a longer stencil life will be more robust in the printing process. Actual stencil life for a paste should be determined from the manufacturers' specifications and on-site verification.

9. Surface-mount technology - Wikipedia

   en.wikipedia.org/wiki/Surface-mount_technology

   Rosin flux is removed with fluorocarbon solvents, high flash point hydrocarbon solvents, or low flash solvents e.g. limonene (derived from orange peels) which require extra rinsing or drying cycles. Water-soluble fluxes are removed with deionized water and detergent, followed by an air blast to quickly remove residual water.