Ni-Cr-Fe coated structural metal porous material and preparation method thereof
A technology of metal porous and porous materials, applied in the field of inorganic porous materials, can solve the problem of low life span of non-weldable heterogeneous membrane layers, and achieve the effects of excellent strength, low energy consumption and high filtration flux
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Embodiment 1
[0025] First, the following preparation process was adopted to prepare materials: (1) Commercial Ni powder with an average particle size of 200 μm, Cr powder with 48 μm, and Fe powder with 10 μm were mixed according to the mass percentage of 70%, 20% and 10%. The powder was mixed on a V-type blender for 12 hours, and 4% stearic acid was added to the mixed powder to granulate, sieved, and dried. Press the dried powder into a green body of Φ30×2mm with a pressure of 70MPa. Then put the sample in a vacuum of 1×10 -3 Pa staged sintering is adopted in the vacuum furnace. The heating rate is controlled at 5°C / min to 580°C, and the holding time is 150 minutes; then the heating rate is 8°C / min to 1350°C, and the holding time is 240 minutes; cooling with the furnace, the Ni-Cr-Fe porous material is obtained as The invention relates to a support body of a film-coated metal porous material. (2) Mix commercial Ni powder with an average particle size of 48 μm, Cr powder with 48 μm, and ...
Embodiment 2
[0034] First, the following preparation process was adopted to prepare materials: (1) Commercial Ni powder with an average particle size of 100 μm, Cr powder with 100 μm, and Fe powder with 5 μm were mixed according to the mass percentage of 75%, 18% and 7%. The powder was mixed on a V-type blender for 12 hours, 3% stearic acid was added to the mixed powder to granulate, sieved, and dried. Press the dried powder into a green body of Φ30×2mm with a pressure of 50 MPa. Then put the sample in a vacuum of 1×10 -2 Pa staged sintering is adopted in the vacuum furnace. The heating rate is controlled at 3°C / min to 500°C, and the holding time is 180 minutes; then the heating rate is 10°C / min to 1400°C, and the holding time is 200 minutes; cooling with the furnace, the Ni-Cr-Fe porous material is obtained as The invention relates to a support body of a film-coated metal porous material. (2) Mix commercial Ni, Cr and Fe powders with an average particle size of 3 μm according to the pr...
Embodiment 3
[0037] First, the following preparation process was adopted to prepare materials: (1) Commercial Ni powder with an average particle size of 150 μm, Cr powder with 80 μm, and Fe powder with 48 μm were mixed according to the mass percentage of 60%, 25% and 15%. The powder was mixed on a V-type blender for 12 hours, 5% stearic acid was added to the mixed powder to granulate, sieved, and dried. Press the dried powder into a green body of Φ30×2mm with a pressure of 100MPa. Then put the sample in a vacuum of 5×10 -3 Pa staged sintering is adopted in the vacuum furnace. The heating rate is controlled at 10°C / min to 650°C, and the holding time is 120 minutes; then the heating rate is 3°C / min to 1300°C, and the holding time is 350 minutes; the Ni-Cr-Fe porous material is obtained as The invention relates to a support body of a film-coated metal porous material. (2) Mix Ni, Cr, and Fe powders with an average particle size of 10 μm according to the proportions of 60%, 25% and 15% by m...
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