Vanadium nitride and ferrovanadium nitride alloy reinforcing agent and preparing method and application thereof
A technology for nitriding vanadium ferroalloy and ferrovanadium nitride, which is applied in the field of special alloy materials, can solve the problems of poor stability of performance strengthening effect, low performance standard rate of steel and high process sensitivity, so as to promote strengthening effect and combine The effect of high rate and cost reduction
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Embodiment 1
[0036] (1) Select raw materials, metal silicon and ferrosilicon, and crush and grind them separately to obtain fine materials with a particle size of ≤0.2mm. The mass fractions of each component of the selected metal silicon are: Si: 96%, Fe: 1.8%, Al: 0.03%, C: 0.05%, P: 0.05%, S: 0.06%, and the balance is unavoidable impurities. The mass fraction of each component of ferrosilicon is: Si: 72%, Al: 0.3%, Mn: 0.7%, C: 0.12%, P: 0.10%, S: 0.12%, and the balance is Fe and unavoidable impurities.
[0037] (2) Proportioning the fine material obtained from the processing in (1), then adding 1.5% (mass fraction) binder to fully mix and granulate, and the particle size is ≤4.0mm. Binder: polycarbosilane 31%, silicic acid sol 60%, antelope methyl cellulose 9%.
[0038] (3) Put the granular material made in (2) into a drying furnace to heat, control the temperature to 350° C., and simultaneously fill the furnace with nitrogen gas with a purity of 99.0%, and keep the temperature for 6 h...
Embodiment 2
[0046] (1) Select raw materials, silicomanganese and metal silicon, and crush and grind them separately to obtain fine materials with a particle size of ≤0.35mm. The mass fraction of each component of silicon-manganese selected is: Si: 17%, Mn: 65%, Al: 0.3%, C: 3.2%, P: 0.15%, S: 0.20%, the balance is Fe and unavoidable Impurities. The mass fraction of each component of metal silicon is: Si: 97.4%, Fe: 1.6%, Al: 0.21%, C≤0.04%, P≤0.04%, S≤0.05%, and the balance is unavoidable impurities.
[0047] (2) Proportioning the fine material obtained in (1), then adding 1.6% (mass fraction) of a binder to fully mix and granulate, and the particle size is ≤4.0mm. Binder: polycarbosilane 42%, silicic acid sol 46%, antelope methyl cellulose 12%.
[0048] (3) Put the granular material made in (2) into a drying furnace to heat, control the temperature to 300° C., and simultaneously fill the furnace with nitrogen gas with a purity of 99.0%, and keep the temperature for 8 hours.
[0049] (...
Embodiment 3
[0054] (1) Select raw materials, ferrosilicon, ferromanganese, ferrotitanium, and ferrochrome, and crush and grind them separately to obtain fine materials with a particle size of ≤0.3mm. The mass fraction of each component of ferrosilicon selected is: Si: 70%, Al: 0.9%, Mn: 0.5%, C: 0.3%, P: ≤0.09%, S≤0.10%, the balance is Fe and unavoidable of impurities. The mass fraction of each component of ferromanganese is: Si: 2.0%, Mn: 70%, Al: 0.25%, C: 6.0%, P≤0.20%, S≤0.03%, and the balance is Fe and unavoidable impurities. The mass fraction of each component of ferro-titanium is: Ti: 69%, Si: 1.2%, Mn: 1.5%, Al: 5.0%, C: 0.4%, P≤0.05%, S≤0.04%, and the balance is Fe and unavoidable impurities. The mass fraction of each component of ferrochrome is: Cr: 52%, Si: 3.0%, C: 2.0%, P≤0.06%, S≤0.05%, and the balance is Fe and unavoidable impurities.
[0055] (2) Proportioning the fine material obtained in (1), then adding 1.2% (mass fraction) of binder to fully mix and granulate, and t...
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