Beryllium-containing low-silver cadmium-free silver solder
A technology of silver solder, mass percentage, applied in the direction of welding/cutting medium/material, welding medium, metal processing equipment, etc., to achieve high solder joint strength, avoid workpiece oxidation, and good fluidity
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Embodiment 1
[0023] A kind of beryllium-containing low-silver and cadmium-free silver brazing filler metal is characterized in that: the composition ratio by mass percentage is: 16% Ag, 41% Cu, 1% In, 0.5% Ga, 0.0001% Be, The balance is Zn. The beryllium-containing low-silver and cadmium-free silver solder obtained by the above composition ratio has a solidus temperature of 655°C±10°C and a liquidus temperature of 745°C±10°C (both taking into account measurement errors). During brazing, the solder has good fluidity and good wetting performance to the base metal.
[0024] Use the flame brazing method, cooperate with FB102 flux, and the brazing joint strength when the brazing base material is the following combination: see the data in the brackets: copper - brass (σ b =210±25MPa, τ=200±30MPa), copper-nickel-based alloy (σ b =210±25MPa, τ=200±30MPa), brass-nickel-based alloy (σ b =330±25MPa, τ=325±30MPa), brazing joint mechanics when brazing copper-brass, copper-nickel-based alloy, brass-nic...
Embodiment 2
[0026] A beryllium-containing low-silver and cadmium-free silver solder is characterized in that: 12% Ag, 39% Cu, 8% In, 4% Ga, 0.05% Be, and the balance is Zn. The beryllium-containing low-silver and cadmium-free silver solder obtained by the above composition ratio has a solidus temperature of 655°C±10°C and a liquidus temperature of 745°C±10°C (both taking into account measurement errors). During brazing, the solder has good fluidity and good wetting performance to the base metal.
[0027] Use the flame brazing method, cooperate with FB102 flux, and the brazing joint strength when the brazing base material is the following combination: see the data in the brackets: copper - brass (σ b =210±25MPa, τ=200±30MPa), copper-nickel-based alloy (σ b =210±25MPa, τ=200±30MPa), brass-nickel-based alloy (σ b =330±25MPa, τ=325±30MPa), brazing joint mechanics when brazing copper-brass, copper-nickel-based alloy, brass-nickel-based alloy with BAg20CuZnCd solder and flux (such as FB102 fl...
Embodiment 3
[0029] A beryllium-containing low-silver and cadmium-free silver solder is characterized by: 13% Ag, 40% Cu, 2% In, 1% Ga, 0.0002% Be, and the balance is Zn. The beryllium-containing low-silver and cadmium-free silver solder obtained by the above composition ratio has a solidus temperature of 655°C±10°C and a liquidus temperature of 745°C±10°C (both taking into account measurement errors). During brazing, the solder has good fluidity and good wetting performance to the base metal.
[0030] Use the flame brazing method, cooperate with FB102 flux, and the brazing joint strength when the brazing base material is the following combination: see the data in the brackets: copper - brass (σ b =210±25MPa, τ=200±30MPa), copper-nickel-based alloy (σ b =210±25MPa, τ=200±30MPa), brass-nickel-based alloy (σ b =330±25MPa, τ=325±30MPa), brazing joint mechanics when brazing copper-brass, copper-nickel-based alloy, brass-nickel-based alloy with BAg20CuZnCd solder and flux (such as FB102 flux)...
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