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Indium Corporation of America is a developer, manufacturer, and global supplier of: specialty solders (including solder paste, preforms, spheres, columns, wire, tubing, ribbon, and foil), fluxes, electrically-conductive adhesives, inorganic indium compounds (including indium oxide, indium-tin oxide, indium hydroxide, and indium chloride), fusible alloys, indium-containing fabrications of all types, and pure indium (from commercial grade through high-purity grade).
Wave Solder Flux
CHOOSING THE RIGHT FLUX
There are many types of soldering fluxes. Picking the correct flux chemistry depends on a number of factors, including:
- The solderability level of the parts to be assembled
- Cleanliness
- The type of finish or coating used on the assembly
- The flux application method
Wave soldering is still preferred for many kinds of assembly operations, and often complements reflow assembly. Wave soldering is particularly suited to continuous production. Changes to board sizes and configurations are readily accommodated. However, operators need to be skilled and processes optimized to realize the most cost effective wave soldering production output.
Modern wave solder machines have become very user friendly. They are used to solder a wide variety of assemblies, including mixed-technology boards. Full enclosures with microprocessors control inert atmospheres for improved low-dross soldering.
Wave solder production lines include fluxing, preheating, soldering, and a conveyor system to transport the circuit assembly through the process. Cleaning and drying can also be added to the soldering system.
Flux is commonly applied by a spray, foam, or wave process. Fluxes (with different activity levels) are available in no-clean, water-washable, and VOC-free varieties.
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