Rare earth oxide modified copper-nickel-silicon alloy material and preparation method and application thereof
A rare earth oxide, copper-nickel-silicon technology, applied in the field of rare earth oxide modified copper-nickel-silicon alloy and its preparation, can solve the problems of rare earth application, low plasticity, cracking, etc.
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Embodiment 1
[0038] A rare earth oxide modified copper-nickel-silicon alloy, the raw material components are: copper 95.8%, nickel 3.8%, silicon 0.3%, strontium lanthanum manganate 0.03% (atomic percentage: strontium 0.28, lanthanum 0.58).
[0039] Melting method:
[0040] (1) Grind the oxide skin of raw materials such as copper, nickel and silicon with a grinder, and preheat the crucible and casting mold.
[0041] (2) Medium frequency induction melting is adopted. In order to prevent the oxidation of copper alloy, the melting process is carried out under the protection of argon gas.
[0042] (3) Continue to heat after the alloy is completely melted. When the temperature of the melt rises to about 1250°C, rare earth oxides are added, and the power is reduced for 15 minutes.
[0043] (4) When the molten metal temperature drops to about 1200°C, the molten metal is poured into the mold.
Embodiment 2
[0045] A copper-nickel-silicon alloy modified by rare earth oxides. The raw material components are: copper 95.6%, nickel 1.3%, silicon 1.9%, strontium lanthanum manganate 1.0% (atomic percentage: strontium 0.1, lanthanum 0.59)
[0046] Smelting method:
[0047] (1) Use a grinder to grind the scale of raw materials such as copper, nickel and silicon, and preheat the crucible and the casting mold.
[0048] (2) Medium frequency induction melting is adopted. In order to prevent the oxidation of copper alloy, the melting process is carried out under the protection of argon gas.
[0049] (3) Continue heating after the alloy is completely melted. When the temperature of the melt rises to about 1300°C, add rare earth oxides and reduce the power for 30 minutes.
[0050] (4) When the melt temperature drops to about 1250°C, pour the melt into the mold.
Embodiment 3
[0052] A rare earth oxide modified copper-nickel-silicon alloy, the raw material components are: 93.2% copper, 3.9% nickel, 2.0% silicon, 0.9% strontium lanthanum manganate (atomic percentage: strontium 0.29, lanthanum 0.1).
[0053] Smelting method:
[0054] (1) Use a grinder to grind the scale of raw materials such as copper, nickel and silicon, and preheat the crucible and the casting mold.
[0055] (2) Medium frequency induction melting is adopted. In order to prevent the oxidation of copper alloy, the melting process is carried out under the protection of argon gas.
[0056] (3) Continue heating after the alloy is completely melted. When the temperature of the melt rises to about 1300°C, add rare earth oxides and reduce the power for 30 minutes.
[0057] (4) When the melt temperature drops to about 1250°C, pour the melt into the mold.
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