Preparation method of spherical zirconium-niobium alloy powder for 3D printing
A zirconium-niobium alloy and 3D printing technology, which is applied in the field of preparation of spherical zirconium-niobium alloy powder for 3D printing, can solve the problems that the powder purity cannot be guaranteed, the powder particle size is coarse, and the shape is irregular, so as to avoid impurity pollution and powder Oxidation problem, good fluidity, small particle size effect
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Embodiment 1
[0048] The preparation of high-purity dense spherical Zr-10% Nb alloy powder with a fine particle size of 20 μm to 45 μm comprises the following steps:
[0049] Step 1: Take zirconium sponge and niobium powder as raw materials, weigh 1 part of niobium powder according to the composition of the Zr-10%Nb alloy, and take 9 parts of zirconium sponge as the basic raw material, and mix them evenly.
[0050] Step 2: put the mixture of zirconium sponge and niobium powder into a mold, and press it into a consumable electrode with a hydraulic press under an argon protective atmosphere with a purity of 99.9 wt%. The size of the electrode is 30mm×200mm.
[0051] Step 3: Under the protective atmosphere of argon gas with a purity of 99.99wt%, use a vacuum consumable electric arc furnace to conduct vacuum consumable melting on the consumable electrode. The melting parameters are: melting voltage 28V, melting current 1000A, arc stabilization current 2.0 A, Obtain Zr-10%Nb alloy ingot.
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Embodiment 2
[0062] The preparation of high-purity dense spherical Zr-7% Nb alloy powder with a fine particle size of 30 μm to 75 μm comprises the following steps:
[0063] Step 1: Take zirconium sponge and niobium powder as raw materials, weigh 7 parts of niobium powder according to the composition of the Zr-7%Nb alloy, and take 93 parts of zirconium sponge as the basic raw material, and mix them evenly.
[0064] Step 2: put the mixture of zirconium sponge and niobium powder into a mold, and press it into a consumable electrode with a hydraulic press under an argon protective atmosphere with a purity of 99.95 wt%, and the size of the electrode is 30mm×200mm.
[0065] Step 3: Under the protective atmosphere of argon with a purity of 99.99wt%, use a vacuum consumable electric arc furnace to conduct vacuum consumable melting on the consumable electrode. The melting parameters are: melting voltage 28V, melting current 1100A, arc stabilization current 2.2 A, Obtain Zr-7%Nb alloy ingot.
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Embodiment 3
[0076] The preparation of high-purity and dense spherical Zr-5% Nb alloy powder with a particle size ranging from 53 μm to 105 μm comprises the following steps:
[0077] Step 1: Take zirconium sponge and niobium powder as raw materials, weigh 1 part of niobium powder according to the composition of Zr-5%Nb alloy, and take 19 parts of zirconium sponge as basic raw materials, and mix them evenly.
[0078] Step 2: put the mixture of zirconium sponge and niobium powder into a mold, and press it into a consumable electrode with a hydraulic press under an argon protective atmosphere with a purity of 99.9 wt%. The size of the electrode is 30mm×200mm.
[0079] Step 3: Under the protective atmosphere of argon with a purity of 99.9wt%, use a vacuum consumable electric arc furnace to conduct vacuum consumable melting on the consumable electrode. The melting parameters are: melting voltage 28V, melting current 1200A, arc stabilization current 2.2 A, Obtain Zr-5%Nb alloy ingot.
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