Smelting method for medium-carbon stainless steel
A medium-carbon stainless steel and smelting method technology, applied in the field of special steel smelting, can solve the problems of low recovery rate of chromium in molten steel, serious phosphorus reversion, and inability to guarantee the quality and performance of steel plates, so as to reduce production costs and reduce carbon content. , the effect of shortening the smelting cycle
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Embodiment 1
[0015] Taking the 08101765 furnace as an example to smelt the steel grade WSM136A, the chromium composition requirement of the steel grade is 12.70-13.50%. The smelting cycle of the electric furnace is 55min, [P]0.008% after tapping, and the tapping amount is 94.3t. There was no oxidation slag in the ladle when the steel was tapped, the temperature of the ladle was 1627°C, and the argon blowing of the ladle was good. After the seat ladle is refined, the ladle is well blown with argon, and the temperature rises to 1647°C. Add 6t of chromium (59% chromium) in the first batch of alloy. After the alloy is completely melted, add 8 tons of chromium in the second batch of alloy. Melt, add 6 tons of low-chromium of the third batch of alloy (chromium composition is 63%) and 6 tons of low-chromium of the fourth batch of alloy again, totally 26 tons of alloys, the time interval of adding ferrochrome at every turn is 12min. After heating up and blowing argon several times and stirring, t...
Embodiment 2
[0017] There is no oxide slag in the ladle when the electric furnace is melting and tapping, the temperature of the ladle is 1620°C, and the argon blowing of the ladle is good. After the seat ladle is refined, the ladle is well blown with argon, and the temperature rises to 1630°C. Add 5t of chromium (59% chromium) in the first batch of alloy. After the alloy is completely melted, add the chromium in the second batch and the third batch of alloy respectively. 5 tons each, and then through heating and melting, add 5 tons of the fourth batch and the fifth batch of alloy low chromium (chromium composition is 63%), a total of 25 tons of alloys, and the time interval of adding ferrochrome each time is 10min. Others are the same as embodiment 1.
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