Flux for resin-cored solder, resin-cored solder, and soldering method
AssigneesSenju Metal Industry Co., Ltd., Denso Corporation
InventorsYoko Kurasawa, Motohiro Onitsuka, Hisashi Tokutomi, Kei Endo, Kazuyuki Hamamoto
Life of this patent
Estimating the term…
Abstract
Provided is a flux for resin-cored solder that is used in resin-cored solder that is supplied into a through hole formed along a central axis of a soldering iron. The flux includes 60% by mass to 99.9% by mass of a rosin ester to a total mass of the flux, 0.1% by mass to 15% by mass of a covalent halogen compound to the total mass of the flux, and more than 0% by mass to 10% by mass of rosin amine, N,N-diethyloctylamine, or rosin amine and N,N-diethyloctylamine to the total mass of the flux.
Claims7
A flux for resin-cored solder that is used in resin-cored solder that is supplied into a through hole formed along a central axis of a soldering iron, comprising:
- 60% by mass to less than 99.9% by mass of a rosin ester relative to a total mass of the flux;
- and
- 0.1% by mass to 15% by mass of a covalent halogen compound relative to the total mass of the flux;
- and
- more than 0% by mass to 10% by mass of rosin amine, N,N-diethyloctylamine, or rosin amine and N,N-diethyloctylamine relative to the total mass of the flux.
A soldering method comprising:
- supplying a resin-cored solder that is solder filled with a flux for resin-cored solder including 60% by mass to less than 99.9% by mass of a rosin ester relative to a total amount of the flux, and 0.1% by mass to 15% by mass of a covalent halogen compound relative to the total mass of the flux, and more than 0% by mass to 10% by mass of rosin amine, N,N-diethyloctylamine, or rosin amine and N,N-diethyloctylamine relative to the total mass of the flux into a through hole formed along a central axis of a soldering iron;
- and
- heating the resin-cored solder to a temperature exceeding a melting point of the solder with the soldering iron, thereby heating a joining object and melting the resin-cored solder.
Dependencies are inferred from the claim text.