Steel making number 2 Flashcards
White cast iron
has carbon induced into stucures. Has high strength. low graphite and the presence of cementite.
Grey Casti iron
Has Graphite below the surface. flakes make it brittle. high compressive strenght
A higher coke bed leads to
Increased melting. due to high carbon content.
Ductile Iron.
Ductile. good wear. has shapes of nodules.
what improves graphitization.
Magnesium and silicon.
Eddy Current
A current that is induced in a conductor and is charged by the the magnitectic field outside the econducor or the echanign of direction in magnetic field.
What direction is Eddy Current flow
Clockwise. opposite of magnetic field
Joules law of heat
H= I(current) ^2 R(resitivity) T(Time)
Bacth vs heel melt
heel melt is poured direclty after each melt or operated with a direct “heel”.
A conductor coil has what current flowing through it
Alternating current.
What is the purpose of the stirring action?
to maintain a uniform temperature throughout the charge.
Coreless furnace
has no core and uses an outside eddy current to charge it.
Channell furnace
Consists of a refractory lined steel shell. iron core forms the induction unit.
the coil creates what
an electromagentic field is induced which charge the material
the direction and power of the magnetic field is proportional to the
same as elctric current.
