In hot metal pretreatment, why does dephosphorization of molten iron have to be desiliconized first?
The hot metal pre-desiliconization technology was developed based on the hot metal pre-dephosphorization technology.
How to improve the quality of molten steel when smelting high-carbon steel?
High carbon, the end point carbon is controlled above 0.15%, reducing carbonation
What is the adverse effect of phosphorus on steel properties?
Phosphorus has a large segregation in steel. In the high phosphorus content, the plasticity and toughness are greatly reduced, especially at low temperatures, the "cold brittleness" is less obvious.
Why is it required to reduce the amount of slag in the ladle?
Since iron oxide is contained in the slag, a part of the iron alloy is added to the iron oxide in the slag to burn, and if the amount of slag in the ladle is less, the burning loss of the iron alloy is less, that is, the alloy is saved.
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