Production method of high titanium steel
A production method and high-titanium technology, which is applied in the field of iron and steel metallurgy, can solve the problems of steel breakout and continuous pouring, and achieve the effects of reducing steel slag reaction, good internal quality, and stable slag system performance
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Embodiment 1
[0034] Converter into furnace [S] 0.008%, converter tapping temperature 1670°C, end point carbon 0.05%, tapping process: online argon blowing, tapping time 5.2 minutes, slag thickness 50mm, ladle clearance height 350mm;
[0035]When 1 / 4 of the steel is tapped from the converter, high-carbon ferromanganese and aluminum iron are added to alloy the manganese, aluminum and other elements in the steel, and are controlled at the lower limit of the composition. LF is added with carbon powder, medium-carbon ferromanganese, and aluminum wire to Carbon, manganese and aluminum in the steel are adjusted to the composition of the finished product, RH treatment starts, and 40TiFe is added at one time to control the titanium in the steel to the composition of the finished product, and the vacuum cycle time after adding the alloy is 20 minutes;
[0036] Add 2kg / ton of high-titanium steel refining slag and 0.5kg / ton of fluorite to the ladle when the converter is tapping 4 / 5, and add 2.5kg / ton o...
Embodiment 2
[0042] Converter into the furnace [S] 0.004%, converter tapping temperature 1690 ℃, end point carbon 0.08%, online argon blowing during tapping, tapping time 6.3 minutes, slag thickness 80mm, ladle clearance height 500mm;
[0043] Low-carbon ferromanganese and aluminum pellets are added to alloy the manganese, aluminum and other elements in the steel when the converter is tapping 2 / 3 of the steel, and are controlled at the lower limit of the composition. LF adds carburant, metal manganese, and aluminum pellets to make the steel Medium carbon, manganese, and aluminum are adjusted to the composition of the finished product. After RH treatment for 2 minutes, 80TiFe is added twice to control the titanium in the steel to the upper limit of the composition of the finished product. After adding the alloy, the vacuum cycle time is 15 minutes;
[0044] Add 5kg / ton of high-titanium steel refining slag and 2.0kg / ton of fluorite to the ladle when the converter is tapping 4 / 5,
[0045] At ...
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