Coated soft solder bar or ingot
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United States of America Patent
Stats
-
Jan 6, 1981
Grant Date -
N/A
app pub date -
May 22, 1979
filing date -
May 23, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Soft solder in the form of an extruded or cast bar or ingot is provided with a coating which prevents formation of surface oxide during storage of the bar or ingot and which acts as an anti-oxidant surface layer when the bar or ingot is used to form a molten solder bath. The coating may also act as a solder flux so that when a solder bath is formed from the soft solder bar or ingot, the anti-oxidant surface layer formed from the coating also acts as a flux composition hence obviating the necessity of employing a separate solder flux in a soldering operation in which the molten solder bath is used. The coating is formed from a coating material essentially comprising a mixture of a neutral ester of a polyhydric alcohol and an ester derivative of rosin or of a modified rosin.
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