Description

Chemistry: Porous plugs and well blocks come under
the category of precast shapes. These are high purity
and high alumina content formulations using high
alumina cement as binders.
• The casting of the shapes is done under controlled
conditions of temperature and water addition.
• Application:
Ladle well block and porous plug well block are used
for housing/holding the ladle nozzle and porous plug
respectively.
Porous plugs are sintered high alumina ceramics
that have controlled porosity to allow for gas
flow. are used in desulfurization of high sulfur base
irons for ductile iron production and in steel
desulfurization. Argon gas injection through porous
plugs is used in ladle metallurgy for inclusion
flotation, temperature homogenization, and
degassing of steel melts.
• Life: The life of the well blocks varies between 30
to 100 cycles depending upon the timely repairs.
The porous plug life is generally in minutes which
can be converted into heats depending upon the
purging time during each heat.