Flux for solder paste and solder paste

The flux for solder paste containing dicarboxylic acid of carbon number 3 to 5 and dicarboxylic acid of carbon number 15 to 20 as an activator, which prevents the skinning or changes by aging of viscosity. And at the actual use, the solder paste of the present invention can maintain good coating and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WADA KENICHI, NAKAJI SHOICHI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FERROUS OR NON-FERROUS ALLOYS MACHINE TOOLS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS PRINTED CIRCUITS SOLDERING OR UNSOLDERING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	The flux for solder paste containing dicarboxylic acid of carbon number 3 to 5 and dicarboxylic acid of carbon number 15 to 20 as an activator, which prevents the skinning or changes by aging of viscosity. And at the actual use, the solder paste of the present invention can maintain good coating and printing ability for long time, further can endure the preheating under high temperature.