Definition of Open-hearth process
(Steel Manuf.)
a
process
by
which
melted
cast
iron
is
converted
into
steel
by
the
addition
of
wrought
iron
,
or
iron
ore
and
manganese
,
and
by
exposure
to
heat
in
an
open-hearth
furnace
; -
also
called
the
Siemens-Martin process
,
from
the
inventors
.
See also:
Open
Related Words
steel
production
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Open hawse
Open hearth
Open newel
Open pipe
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Open sea
Open Sesame
Open sight
Open verdict
Open vowel
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open-chain
open-collared
open-ended
Open-eyed
Open-front furnace
Open-handed
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Open-hearted
Open-hearth furnace
Open-hearth steel
open-minded
Open-mouthed
Open-timber roof
Openbill
opencast
opencut
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