 |
 |
Refractory
Grade Olivine |
EBT AGGREGATES
1x5 mm olivine |
|
 VANGUARD
EBT (eccentric bottom tapping) aggregates are produced from
olivine, a naturally occurring solid solution of forsterite,
magnesium orthosilicate, Mg2Si04, and
fayalite, iron orthosilicate, Fe2SiO4.
With an effective MgO content of 48%, VANGUARD offers steel
makers the refractory properties required of molten steel
alloys, with a unique ability to achieve a controlled fusion
sought in the EBT process.
 The
superior performance of VANGUARD EBT aggregates is the result
of product development with electric furnace steel makers.
Continuous analysis, redesign and refinement have optimally
paired mineral properties with particle size distribution
to maximize free opening performance. Nominally sized at 1
x 5 mm, VANGUARD granule size distribution is an engineered
balance between coarse and fine-grained particles. Finer grain
sizes in contact with the molten metal quickly fuse to form
a reliable refractory plug. The coarser, granular particles
form a dense stratum which supports the thinner, fused layer
until the heat is tapped. VANGUARD high purity delivers high
refractoriness to minimize sub-surface sintering below the
fused layer for greater tapping efficiency and improved productivity.
VANGUARD basic pH chemistry prevents reaction with basic
magnesite and magnesia carbon tap hole refractories to promote
longer campaigns. Custom engineered to maximize flow and permeability,
VANGUARD is used to improve free-opening performance rates
in eccentric bottom tapping and similarly designed of bottom
tapping electric steel making furnaces.
|
