| 摘要 |
PROBLEM TO BE SOLVED: To provide a new, low-cost pasty composition for aluminum brazing by which the treatment and plastic working of the object to be coated can easily be performed, the appearance of the brazed part (fillet) is good, the working environment is also good and which is applicable even to parts having a complicated shape. SOLUTION: This pasty composition for aluminum brazing contains a) metal powder for brazing of 10 to 70 wt.%, b) fluorides flux of 2 to 50 wt.%, and c) at least one binder selected from an alkyd resin, a mixture of an alkyd resin and butyl rubber, a mixture of an alkyd resin and a petroleum resin, a mixture of an alkyd resin, butyl rubber and a petroleum resin, a mixture of an acrylic resin and butyl rubber, a mixture of an acrylic resin and a petroleum resin and a mixture of an acrylic resin, butyl rubber and a petroleum resin of 1 to 15 wt.%, and the balance compassed of substantially organic solvent (wherein, the total content does not exceed 100 wt.%).
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