Solder paste moistening property determination

The determination uses a block (1) of solder repelling metal, with a bore (4), into which soldering paste (2) is introduced. The block is connected to a scales to measure forces on the paste. The paste is smoothed with a spatula and melted. An activated metal tip (3) is then immersed into the paste...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	PETRY, FLORIAN. DR., 86179 AUGSBURG, DE, ROTH, RICHARD. DR., 86420 DIEDORF, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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Beschreibung
Zusammenfassung:	The determination uses a block (1) of solder repelling metal, with a bore (4), into which soldering paste (2) is introduced. The block is connected to a scales to measure forces on the paste. The paste is smoothed with a spatula and melted. An activated metal tip (3) is then immersed into the paste to a defined depth. The time variation of the moistening force is measured whilst maintaining constant all test parameters, such as paste temp. and paste activation time. The metal block can be made of aluminium, copper or a copper alloy. The metal pin is activated with a mixture of phosphate and alcohol.