Production method of 32Cr3Mo1V continuous casting large round billet for roller shell
A production method and continuous casting technology, which is applied in the field of continuous casting large round billets, can solve the problems that cannot be used to produce 32Cr3Mo1V roller sleeve raw materials, and the center defects of continuous casting large round billets are large, so as to increase the degree of production automation and reduce the center Cracks and shrinkage cavities, the effect of reducing production costs
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[0042] A method for producing a 32Cr3Mo1V continuous casting large round billet for roller sleeves, comprising:
[0043] Molten steel smelting, the molten iron smelting adopts molten iron with low content of impurity elements, the content of said impurity elements is: pb≤0.002%, As≤0.01%, Sn≤0.002%, Sb≤0.003%, Bi≤0.002%, for the The molten iron is smelted by electric arc furnace, refined by LF and vacuum degassed by VD successively.
[0044] LF refining, that is, ladle refining, LF furnace (LADLEFURNACE), that is, ladle refining furnace, is the main refining equipment outside the furnace in steel production. LF furnace generally refers to the refining furnace in the steel industry, which is actually a special form of electric arc furnace.
[0045] VD (VacuumDegassing) Vacuum Refining Furnace: It is the vacuum degassing process of the ladle. This process is between the ladle furnace (LF) and the wire feeding (FW). It is to prepare molten steel for the continuous casting machin...
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