Tin-zinc base composite soldering flux
A technology of composite welding and zinc solder, applied in welding/cutting medium/material, welding medium, welding equipment, etc., can solve the problems of wettability and oxidation resistance not fundamentally solved, and the difficulty of popularization and application of solder, so as to achieve a combination of Tight, uniform particle distribution
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Embodiment 1
[0027] Example 1: In the tin-zinc based composite solder of the present invention, the weight percentages of the components are: 99% tin-zinc solder matrix, 1% Fe magnetic particles, and the average particle size of the Fe magnetic particles is 10 μm. The content of Zn in the tin-zinc solder base is 2% by weight of the tin-zinc base solder base, and the balance is Sn.
Embodiment 2
[0028] Example 2: In the tin-zinc based composite solder of the present invention, the percentage by weight of each component is: tin-zinc solder matrix 85%, Co magnetic particles 15%, and the average particle diameter of Co magnetic particles is 50 μm. The content of Zn in the tin-zinc solder base is 6% by weight of the tin-zinc base solder base, and the balance is Sn.
Embodiment 3
[0029] Example 3: In the tin-zinc based composite solder of the present invention, the weight percent of each component is: 98% of tin-zinc solder matrix, 2% of Ni magnetic particles, and the average particle size of Ni magnetic particles is 30 μm. The content of Zn in the tin-zinc solder base is 9% by weight of the tin-zinc base solder base, and the balance is Sn. figure 1 Its metallographic microstructure photo.
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