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Ferrous Materials and Non-Ferrous Metals and Alloys 1 introduction
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Bog'liq
150 Sample-Chapter
2.5.5 Chilled Cast Iron
Quick cooling is generally known as chilling and the iron so produced is “chilled iron”.
The outer surface of all castings always gets chilled to a limited depth about (1 to 2 mm)
during pouring and solidification of molten metal after coming
in contact with cool sand
of mould. Sometimes the casting is chilled intentionally
and some becomes chilled
accidentally to a small depth.
Chills are employed on any faces of castings which
are required to be hard to
withstand wear and friction. Chilled castings are used
in producing stamping dies and
crushing
rolls railway
,
wheels cam followers
, and so on.
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