Ni-Fe-Mo-Cu porous material and preparation method thereof
A ni-fe-mo-cu, porous material technology, applied in separation methods, chemical instruments and methods, metal processing equipment, etc., can solve the problems of poor corrosion resistance, low filtration efficiency, and high preparation costs, and achieve high resistance Good high temperature and alkali corrosion resistance, increased specific surface area and uniform distribution
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Embodiment 1
[0024] Four high-purity element powders of Ni, Fe, Mo, and Cu were prepared according to the mass percentage, and the Fe content was 15%, the powder particle size was 3µm; the Mo content was 2%, the powder particle size was 3µm; the Cu content was 7% , the powder particle size is 3µm; the balance is Ni powder with a powder particle size of 10µm. Put the prepared powder on a V-type powder mixer and mix it at a constant speed for 8 hours, then add stearic acid of 1% of the total powder mass, dry for 6 hours, and cold press at 200 MPa under a cold press for 30 seconds; Place the pressed sample in a vacuum furnace at a vacuum of 1×10 -2 In the case of Pa, keep a heating rate of 5°C / min from room temperature to 240°C and keep it for 60 minutes; then raise the temperature to 300°C at a rate of 10°C / min and keep it for 100 minutes; then raise the temperature at a rate of 8°C / min to 680°C and keep at this temperature for 120min; then raise the temperature to 940°C at a heating rate o...
Embodiment 2
[0028] The four high-purity element powders of Ni, Fe, Mo, and Cu are prepared according to the mass percentage, and the content of Fe is 35%, the particle size of the powder is 10µm; the content of Mo is 5%, the particle size of the powder is 10µm; the content of Cu is 2% , the powder particle size is 3µm; the balance is Ni powder with a powder particle size of 3µm. Put the prepared powder on a V-type powder mixer and mix it at a constant speed for 10 hours, then add stearic acid of 3% of the total powder mass, dry for 12 hours, and cold press at a pressure of 50MPa under a cold press for 120s; Place the pressed sample in a vacuum furnace at a vacuum of 1×10 -3 In the case of Pa, keep the temperature rise rate of 6°C / min from room temperature to 120°C and keep it for 40 minutes; then raise the temperature to 340°C at a rate of 3°C / min and keep it for 80 minutes; then raise the temperature at a rate of 4°C / min to 480°C and keep at this temperature for 90 minutes; then raise t...
Embodiment 3
[0031] The four high-purity element powders of Ni, Fe, Mo, and Cu were prepared according to the mass percentage, and the content of Fe was 25%, the particle size of the powder was 5µm; the content of Mo was 6%, the particle size of the powder was 8µm; the content of Cu was 5% , the powder particle size is 6µm; the balance is Ni powder with a powder particle size of 7µm. Put the prepared powder on a V-type powder mixer and mix at a constant speed for 16 hours, then add 1.5% stearic acid of the total mass of the powder, dry for 11 hours, and cold press at 180 MPa under a cold press for 50 seconds; Place the pressed sample in a vacuum furnace at a vacuum of 5×10 -3 In the case of Pa, maintain a heating rate of 10°C / min from room temperature to 180°C, and keep it for 50 minutes; then raise the temperature to 420°C at a heating rate of 5°C / min, and keep it for 90 minutes; then raise the temperature at a heating rate of 5°C / min to 560°C and keep at this temperature for 95min; then...
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