Low melting temperature flux materials for brazing applications and methods of brazing using the same
AssigneeHoneywell International Inc.
InventorsJürgen Friederich Rudolph, Moritz Karl Rosenthal
Life of this patent
Estimating the term…
Abstract
Low melting temperature flux materials for brazing applications and methods of brazing using the same are provided. A low melting temperature flux material for brazing applications includes as a majority constituent, a Cs-containing flux material, as a first minority constituent, a eutectic blend composition, and, optionally, as a second minority constituent, a mediating compound. The second minority constituent is present in the low melting temperature flux material in a lesser amount with respect to the first minority constituent.
Claims13
A flux composition for brazing applications comprising:
- a cesium (Cs)-containing flux material in an amount of from 80 mol-% to 90 mol-% of the total flux composition;
- and
- a eutectic blend composition including sodium tetrafluoroborate and sodium fluoride, wherein the eutectic blend composition is in an amount of 7 mol-% to 13 mol-% of the total flux composition;
- and wherein the molar ratio of sodium tetrafluoroborate to sodium fluoride is from 88:12 to 92:8.
Dependencies are inferred from the claim text.