METHOD OF CONTROLLING MODIFICATION DEGREE OF GRAY CAST IRON

摘要

A method for controlling the degree of modification of the gray iron, characterized in that the dispensing device is programmed for issuing a specific linkage particulate modifier on the jet of pig iron melt during filling of forms depending on the resulting casting is measured iron temperature in the ladle is stopped conveyor forming and sealing line is filled molten iron a first mold with simultaneous operation inoculation on particulate modifier stream, after filling f rmy molten iron is taken from the bowl portion of cast iron is poured wedge sample produce its fault and determining the width of a half (poluotbelennoy) area: the line width of a half (poluotbelennoy) zones V sample standard value for a particular casting produce further pouring molten iron from the ladle on forms with feed stream initially installed on or proportionally reduced inoculant given interrupt its feed riser before filling and sealing the bowl of each form; by the non-width half-(poluotbelennoy) zones V sample standard value for a particular casting the first mold poured isolate and recycle, re-measure the iron temperature in the bucket (at its non-conformity tehprotsessa produce drain metal from the ladle and refilling the furnace), corrected consumption particulate modifier, fill out the following form and repeat control procedure.