A kind of method that adopts nano-molten salt to prepare silicon-aluminum-iron alloy containing nanoparticle
A nanoparticle and ferroalloy technology, applied in the direction of improving process efficiency, etc., can solve the problems of increasing the production cost and high preparation cost of steel containing nanoparticle, and achieve the effect of increasing added value and reducing production cost
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Embodiment 1
[0025] Mechanically mix titanium carbide nanoparticles with a particle size of 30-50 nanometers with salt, the composition of which is: NaCl: 15%, KCl: 15%, NaCl 3 AlF 6 : 70%, the weight of titanium carbide nanoparticles is 0.25 of the salt, the mixed nanoparticle-containing salt and the acetone liquid whose mass is 4 times that of the nanoparticle-containing salt are added to the ultrasonic vibrator, and after ultrasonic vibration treatment for 2 hours, the dispersed The acetone solution in which the nanoparticles are distributed is placed in a vacuum drying oven and heated in a vacuum with a vacuum degree of 0.06 MPa and a vacuum heating temperature of 190°C; heat treatment in vacuum for 2 hours to obtain a mixed salt in which the nanoparticles and the salt are evenly distributed. Add scrap steel, No. 75 ferrosilicon, aluminum ingots in sequence, and then add the latter material after the former material is melted. After the alloy is completely melted, add mixed salt and li...
Embodiment 2
[0027] Mechanically mix titanium nitride nanoparticles with a particle size of 40-70 nanometers and salt, the composition of the salt is: NaCl: 17%, KCl: 19%, Na3AlF6: 64%; the weight of titanium nitride nanoparticles is the salt 0.3, add the mixed nanoparticle-containing salt and the acetone liquid whose mass is 5 times that of the nanoparticle-containing salt into the ultrasonic vibrator, and after ultrasonic vibration treatment for 2.5 hours, put the acetone solution with dispersed nanoparticles into a vacuum drying oven Vacuum heating in medium, the vacuum degree is 0.07 MPa, and the vacuum heating temperature is 170°C; after vacuum heating for 1.8 hours, a mixed salt with uniform distribution of nanoparticles and salt is obtained; in the induction furnace, scrap steel, No. 75 ferrosilicon, For aluminum ingots, add the latter material after the former material is melted. After the alloy is completely melted, add mixed salt containing nanoparticles and lime; the weights of ...
Embodiment 3
[0029] Mechanically mix the zirconium boride nanoparticles with a particle size of 40-80 nanometers and the salt, the composition of the salt is: NaCl: 20%, KCl: 18%, Na3AlF6: 62%, and the weight of the zirconium boride nanoparticles is the salt 0.32; the mixed nanoparticle-containing salt and the acetone liquid whose mass is 6 times that of the nanoparticle-containing salt are added to the ultrasonic vibrator, and after ultrasonic vibration treatment for 2.3 hours, the acetone solution with dispersed nanoparticles is put into a vacuum drying oven Medium vacuum heating, the vacuum degree is 0.04 MPa, and the vacuum heating temperature is 160°C; the vacuum heating treatment is completed after 1.5 hours, and the mixed salt with uniform distribution of nanoparticles and salt is obtained; scrap steel and No. 75 ferrosilicon are sequentially added into the induction furnace , aluminum ingots, after the former material is melted, add the latter material; after the alloy is completely...
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