FIELD: metallurgy, possibly improvement of properties of gray iron castings.
SUBSTANCE: method providing decreased volume content of graphite, disintegration of graphite inclusions and their uniform distribution along cross section of castings comprises steps of heating and cooling in each cycle while heating in each cycle is realized till 700 - 750°C and then casting is cooled in water. Number of cycles is equal to 2 - 4.
EFFECT: possibility for providing decreased volume content of disintegrated and uniformly distributed graphite in cross sections of castings.
1 ex, 1 tbl
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Authors
Dates
2008-04-20—Published
2006-04-20—Filed