Ni-cr-fe film-coated metal porous material and preparation method thereof
A ni-cr-fe, metal porous technology, applied in the field of inorganic porous materials, can solve the problem of low life of non-weldable heterogeneous membrane layers, and achieve the effects of excellent strength, high filtration flux, and low energy consumption
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Embodiment 1
[0025] First, the following preparation process was adopted to prepare materials: (1) Commercially used Ni powder with an average particle size of 200 μm, Cr powder with 48 μm, and Fe powder with 10 μm were mixed in proportions of 70%, 20% and 10% by mass. The powder was mixed on a V-type blender for 12 hours, 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 used 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) The commercially used Ni powder with an average particle size of 48 μm, the Cr powder of 48 μm, and t...
Embodiment 2
[0034]First, the following preparation process was adopted to prepare materials: (1) Commercially used 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 50MPa. Then put the sample in a vacuum of 1×10 -2 Pa staged sintering is used 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) Ni, Cr, Fe powder that the average particle diameter of commercial use is 3 μ m is mixed eve...
Embodiment 3
[0037] First, the following preparation process was adopted to prepare materials: (1) Commercially used Ni powder with an average particle size of 150 μm, Cr powder with 80 μm, and Fe powder with 48 μm were mixed in proportions of 60%, 25% and 15% by mass. 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 used 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) Ni, Cr, Fe powders with an average particle diameter of 10 μm are mixed according to the ratio of 60%, 25% and 15% according ...
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