Influence of lost foam casting technological parameters on efficiency of grey cast iron graphitizing modifying in a mold «cavity»

Шрифт:
292

Nebozhak I. A., Sumenkova V. V., Shyns’kyy O. Y.

https://doi.org
UDC 621.74.045:669.162.275

Summary:

On for samples of grey cast iron grade SCH20 GOST 1412-85 (ST SEV 4560-84). Basic criteria for evaluation of matrix melt graphitiziing modifying process that are the silicon concentration and its assimilation coefficient and also the hardness of castings is measured. Mathematical processing and graphical interpretation of experimental data proved the influence of LFC technological parameters on the effectiveness of liquid iron modifying with dispersed ferrosilicon grade FeSi75 GOST 1415- 93 (ISO 5445-80) in the mold «cavity».

Keywords:

styrofoam pattern, graphitizing modifying, graphical interpretation, liquid metal, silicon concentration, absorption coefficient of silicon, LFC-process, mold, cast sample, mathematical processing, chill, casting, styrofoam density, melt, grey cast iron, pouring rate, hardness, pouring temperature, technological parameters, regression equation, ferrosilicon, cementite

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