Preparation method of molten steel deoxidizing agent
A technology of deoxidizer and molten steel, which is applied in the field of iron and steel smelting, can solve the problems of deteriorating steel quality, low utilization rate of deoxidizer, and lower deoxidation efficiency, so as to achieve the effects of improving strength and toughness, improving the production of deoxidation products, and improving deoxidation capacity
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example 1
[0021] According to the mass ratio of 1:10, lanthanum oxide and boron powder were mixed, vacuum-dried and placed in a ball mill jar, ball milled at 600r / min for 5h, passed through a 200 mesh sieve to obtain ball mill powder, collected ball mill powder and placed in a mold, After pressing at room temperature and 30MPa for 2 minutes, the billet is obtained. Place the billet in a tubular atmosphere furnace, pass argon to remove the air, and raise the temperature to 1600°C at a rate of 10°C / min under the argon atmosphere. After heat preservation and calcination, let it stand for cooling to room temperature, broken and ball-milled through a 500-mesh sieve to obtain a modified powder; take manganese metal and ball-mill it through a 200-mesh sieve to obtain a metal manganese powder. In parts by weight, 120 parts of A00 aluminum, 5 parts of metal manganese powder and 0.5 parts of Put manganese chloride in a graphite crucible, heat-preserve and melt at 1000°C to obtain an alloy melt, th...
example 2
[0023] According to the mass ratio of 1:10, lanthanum oxide and boron powder were mixed, vacuum-dried and placed in a ball mill jar, ball milled at 550r / min for 3h, passed through a 200 mesh sieve to obtain ball mill powder, collected ball mill powder and placed in a mold, After pressing for 1min at room temperature and 25MPa, the billet is obtained. Place the billet in a tubular atmosphere furnace, pass argon to remove the air, and raise the temperature to 1500°C at a rate of 10°C / min under the argon atmosphere. After heat preservation and calcination, let it stand for cooling to room temperature, broken and ball-milled through a 500-mesh sieve to obtain a modified powder; take manganese metal and ball-mill it through a 200-mesh sieve to obtain a metal manganese powder, in parts by weight, get 100 parts of A00 aluminum, 3 parts of metal manganese powder and 0.1 part of Put manganese chloride in a graphite crucible, heat-preserve and melt at 900°C to obtain an alloy melt, then ...
example 3
[0025] According to the mass ratio of 1:10, lanthanum oxide and boron powder were mixed, vacuum-dried and placed in a ball mill jar, ball milled at 570r / min for 4h, passed through a 200 mesh sieve to obtain ball mill powder, collected ball mill powder and placed in a mold, After pressing at room temperature and 27MPa for 1min, the billet is obtained. Place the billet in a tubular atmosphere furnace, pass argon to remove the air, and raise the temperature to 1550°C at a rate of 10°C / min under the argon atmosphere. After heat preservation and calcination, let it stand for cooling to room temperature, broken and ball-milled through a 500-mesh sieve to obtain a modified powder; take manganese metal and ball-mill it through a 200-mesh sieve to obtain a metal manganese powder, in parts by weight, get 110 parts of A00 aluminum, 4 parts of metal manganese powder and 0.3 parts Put manganese chloride in a graphite crucible, heat-preserve and melt at 950°C to obtain an alloy melt, then ad...
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