PROCESS FOR MANUFACTURING ELECTRONIC COMPONENTS USING SOFT SOLDERING FLUX BASED ON CARBOXYLIC ACIDS

摘要

this stream is preferably used in electronics and electricity. the special nature of this flow is easy to eliminate waste of welding, without time limit and the flow itself is self oxidatively degraded), as would be the case, for example, upon activation of the aromatic carboxylate acid flow.the relationship of corrosion properties and surface resistivity, as required by the testing standards according to din 8516 and din 8527 applied to halogen free flux, according to din 8511, type f - sw 32, are provided.the advantages of the flow are obtained by the introduction of mono -, di - or poly carboxylated alicyclic carbon ring having at least one or their derivatives using mono -, di - or poly - or keto carboxylates. the flow properties can also be improved by the joint use of quaternary ammonium salts.the basic composition described above provides products with various flow characteristics, which gives flexibility in their use (for example, flow applicable to welding procedures and welding fluid, pulp, parts of envelopes. e son to lead or lead wire cores.