| 摘要 |
PROBLEM TO BE SOLVED: To provide a brazing formulation, to be more specific, a brazing formulation for repairing cracks in a substrate. SOLUTION: The brazing formulation includes a new promoter and a metal filler. The promoter includes a blend of potassium tetrafluoroaluminate and potassium tetrafluoroborate. The braze may be used for repairing cracks in a substrate. The braze has a low melt point, removes oxides from within cracks and has improved penetration into cracks for repair. COPYRIGHT: (C)2009,JPO&INPIT
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