CPC B23K 35/3613 (2013.01) [B23K 35/362 (2013.01)] | 3 Claims |
1. A flux comprising:
a rosin;
a solvent;
a thixotropic agent; and
an activator,
wherein the thixotropic agent contains a compound represented by General Formula (3) and a polyamide,
the polyamide is a condensate of an aliphatic carboxylic acid, a hydroxy group-containing aliphatic carboxylic acid, and an amine,
a temperature of an endothermic peak of the polyamide by differential scanning calorimetry is in a range of 120° C. or higher and 200° C. or lower,
the aliphatic carboxylic acid includes a dicarboxylic acid,
an amount of the rosin is in a range of 30% by mass or more and 50% by mass or less with respect to a total mass of the flux,
an amount of the compound represented by General Formula (3) is in a range of 1% by mass or more and 10% by mass or less with respect to a total mass of the flux, and
an amount of the polyamide is in a range of 1% by mass or more and 15% by mass or less with respect to a total mass of the flux,
![]() [in the formula, R11 and R11′ each independently represent a hydrocarbon group having 14 to 20 carbon atoms, R0a and R0a′ each represent a hydrogen atom, R0b2 represents a hydrocarbon group having 6 to 9 carbon atoms, R21 and R21′ each independently represent an alkylene group having 2 to 6 carbon atoms, and R0c and R0c′ each represent a single bond].
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