Die neue Flussmittelserie besteht aus den Versionen EO-B-023 A bis E. Diese Flussmittel sind von der Zusammensetzung der Aktivatoren mit der in den Röhrenloten eingesetzten Füllmasse EO-FC-006 identisch. „Nach unseren Recherchen dürfte das absolut einmalig am Markt sein. Somit können wir Kreuzreaktion zu 100 % vermeiden“, erklärt Markus Geßner, Marketing- und Vertriebsverantwortlicher der Emil Otto GmbH. Sowohl die Flussmittel als auch die Röhrenlote können in der Serienfertigung als auch beim Handlöten von Kleinserien eingesetzt werden, ohne dass dabei die Mitarbeiter auf den Aktivator zu achten haben. Die Mitarbeiter können so die unterschiedlichen Flussmittel nicht verwechseln und vermeiden ein mangelhaftes Lötergebnis.
All variants of the newly developed flux series contain highly effective activators that provide additional support for the soldering process. They can be applied using all standard application methods except foaming. The solids content of the EO-B-023A is 2% and goes up to 15% for the EO-B-023E. The new fluxes are also characterized by remarkably low acid values. They are multifluxes that can be used in wave, selective and hand soldering processes as well as in cable assembly. "These multifluxes are alcohol-based fluxes that have a very wide range of applications. They have very good soldering properties, especially when it comes to penetration and wetting the circuit board. The process window is very wide, with very high thermal stability and good process activity over a long time interval. The residue behavior is also very good, the circuit boards are very clean after the soldering process. Even with the EO-B-023E with 15 % solids content, the PCBs are virtually residue-free after the soldering process," adds Geßner.
The fluxes of the EO-B-023 series and the two tubular solders with the EO-FC-006 filling compound therefore form a perfect combination. The AOX755 solder wire is a soft solder developed for the electronics sector, which consists of tin, copper, nickel and germanium. This micro-alloyed solder significantly reduces copper leaching and also has an oxidation-inhibiting effect. The second alloy Sn96.5Ag3Cu0.5 is a standard soft solder consisting of tin, silver and copper. This soft solder is known as SAC305 in the technical field and is one of the most common solders used in component production and cable assembly. Both solder wires are provided with three cores made of the specially produced flux EO-FC-006, which improves the smoke and residue behavior.