[Flux cored solder wire] For Aluminum wire soldering K4-C601-3

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Flux cored solder wire

Solderable by iron to aluminum wire, used such as in the HDD of the actuator.

●Soldering test to aluminum

Solderable to aluminum
Put solder wire on aluminum board and heat by 270℃

Additive elements achieve high soldering reliability and prevent the galvanic corrosion that occurs between the aluminum material and solder.

●Electrolytic corrosion test

Measure the time until the solder delamination occurs, stored in 40℃ of artificial seawater, after soldering the two aluminum plates

Apply water-soluble base material instead of rosin.The residue after soldering is possible to wash away easily with water.

●Ionic residue test

The flux residue is possible to clean with water

【Test method】JIS Z 3197 8.5.2

【Condition】
Cleaning solution:Pure water
Washing temp:50℃
Washing time:1min
Number of washings:3 times

Alloy type	K4 (Sn:Bal / Ag 3.5 / Ni 0.2)
Flux type	Fluorine type
Flux contents (%)	3.0%
Halide contents	17％～23％
Copper plate corrosion test	No corrosion (after cleaning with water)
Insulation resistance（Ω）	More than 1.0×10⁸Ω (after cleaning with water)
Electrochemical migration	No migration (after cleaning with water)
Fluorine contents（％）	20%
Flux name	C601