But if these are casted how do they get rid of the potential air bubbles? What materials do they use for the containers so they dont get weld with the melted steel? Do they take all this temperature for continuous production time and dont get damaged nor get into the final product? How???
Casting may have small voids but the bottom pouring process helps eliminate these. Cast metals have a coarse grain structure. Forging the metal compresses the grains significantly and small voids, if any, are compressed together. Forging significantly increases the strength of the metal. The containers are often ceramic or oil lined. Different types of metals or alloys are also used with different thermal properties, i.e. higher melting point. I don't understand your last question, sorry.
