Silver alloy and preparation method thereof
A technology of silver alloy and weight percentage, applied in the field of silver alloy and preparation, can solve the problem of poor sulfidation resistance of silver alloy, and achieve the effects of good sulfidation resistance, high ductility and good sulfidation resistance.
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Embodiment 1
[0025] In the silver alloy of the present invention, every 100 g contains 99.6 g of silver, 0.1 g of magnesium, 0.1 g of aluminum, 0.1 g of manganese, and 0.1 g of yttrium.
[0026] Its specific preparation process includes the following steps:
[0027] 1) Weigh silver, magnesium, aluminum, manganese and yttrium according to the above weight components, place in a vacuum high-frequency induction melting furnace, evacuate until the pressure in the furnace is ≤1Pa, and fill it with argon until P=0.06MP, The material is melted by induction heating, and the temperature is kept at 1300°C for 20 minutes to fully alloy the melt, and then the melt is poured into the mold and cooled in the furnace to form a base material.
[0028] 2) Quenching and tempering treatment: put the cooled base material in the atmosphere furnace, control the flow rate of oxygen to flow into the atmosphere furnace at 20ml / min, raise the temperature to 450°C at a heating rate of 5°C / min, keep it warm for 120min...
Embodiment 2
[0031] In the silver alloy of the present invention, every 100 g contains 93.5 g of silver, 2 g of magnesium, 2 g of aluminum, 2 g of manganese, and 0.5 g of yttrium.
[0032] Its specific preparation process includes the following steps:
[0033] Weigh silver, magnesium, aluminum, manganese and yttrium according to the above weight components, place in a vacuum high-frequency induction melting furnace, evacuate until the pressure in the furnace is ≤1Pa, fill with argon until P=0.06MP, and heat by induction Melt the material, hold it at 1300°C for 20 minutes to fully alloy the melt, then pour the melt into the mold and cool it in the furnace to form the base material.
[0034] 2) Quenching and tempering treatment: put the cooled base material in the atmosphere furnace, control the flow rate of oxygen to flow into the atmosphere furnace at 20ml / min, raise the temperature to 450°C at a heating rate of 5°C / min, keep it warm for 120min, and then Cool to obtain a silver alloy.
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Embodiment 3
[0037] In the silver alloy of the present invention, every 100 g contains 95.4 g of silver, 0.1 g of magnesium, 2 g of aluminum, 2 g of manganese, and 0.5 g of yttrium.
[0038] Concrete preparation process comprises the following steps:
[0039] Weigh silver, magnesium, aluminum, manganese and yttrium according to the above weight components, place in a vacuum high-frequency induction melting furnace, evacuate until the pressure in the furnace is ≤1Pa, fill with argon until P=0.06MP, and heat by induction Melt the material, hold it at 1300°C for 20 minutes to fully alloy the melt, then pour the melt into the mold and cool it in the furnace to form the base material.
[0040] 2) Quenching and tempering treatment: put the cooled base material in the atmosphere furnace, control the flow rate of oxygen to flow into the atmosphere furnace at 20ml / min, raise the temperature to 450°C at a heating rate of 5°C / min, keep it warm for 120min, and then Cool to obtain a silver alloy.
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