Today we continue to talk about several factors that affect the effect of
graphite spheroidization in the production of ductile iron
Four, the influence of the temperature of molten iron:
the temperature of molten iron increases by 20-25 degrees,
you need to add 0.10% spheroidizing agent.
Five, the influence of pouring time: pouring time mainly affects
the gestate decline and the spheroidization decline of MG evaporation,
and the evaporation decline of MG with large diameter is fast.
High NI hot iron treatment after 8 minutes of hot iron must be poured off,
the general ductile iron recession time is relatively long, in 12 minutes.
Six. The influence of sulfur reflux of MGS slag on spheroidization
should be considered in ladling slag
Especially the high temperature of the material influence, high.
The inoculant residue of medium barium is dry residue,
so it is not easy to clean the residue,
and it is easy to hang the residue
Seven, the influence of the sulfur content of ladle refractory mud
Cast ladle refractory mud has high sulfur content,
not ironed through with hot iron, the first two packets of
hot iron spheroidization will appear poor spheroidization,
should choose low sulfur refractory mud.
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graphite spheroidization in the production of ductile iron
Four, the influence of the temperature of molten iron:
the temperature of molten iron increases by 20-25 degrees,
you need to add 0.10% spheroidizing agent.
Five, the influence of pouring time: pouring time mainly affects
the gestate decline and the spheroidization decline of MG evaporation,
and the evaporation decline of MG with large diameter is fast.
High NI hot iron treatment after 8 minutes of hot iron must be poured off,
the general ductile iron recession time is relatively long, in 12 minutes.
Six. The influence of sulfur reflux of MGS slag on spheroidization
should be considered in ladling slag
Especially the high temperature of the material influence, high.
The inoculant residue of medium barium is dry residue,
so it is not easy to clean the residue,
and it is easy to hang the residue
Seven, the influence of the sulfur content of ladle refractory mud
Cast ladle refractory mud has high sulfur content,
not ironed through with hot iron, the first two packets of
hot iron spheroidization will appear poor spheroidization,
should choose low sulfur refractory mud.
Follow me for more casting tips ~
