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Columbus, Ohio---December 8, 2006---
The V-CAST® 700 Series castables are a new line of ultra-low water
castables that are designed for molten iron contact areas in channel
furnaces, cupolas, transfer ladles, lauders, receivers, blast furnace
troughs and runners and other molten metal applications.
The exceptional performance of the 700
series castables is due to the following factors:
1) Ultra Low Water Requirement
– These products require 4.5% or less water by weight for casting, and
some are as low as 3.5%. The low casting water level results in a denser
cast with lower permeability. Ultimately, the high density and low
permeability improve performance due to enhanced chemical resistance in
service.
2) Bonding System
- Traditional refractory systems utilize clay bonds, whereas the V-CAST
700 series develops an advanced ceramic bond. This bond is more stable,
has superior creep resistance, improves bond strength, and has better
corrosion resistance than clay bonded systems.
3) High Purity Matrix
coupled with a Coarse Aggregate Design - The matrix of the V-CAST
700 series contains high purity additives which maximize performance in
corrosive environments. The additives are selected based on their ability
to resist both molten metal and slag of varying chemistries.
Additionally, this series incorporates the use of a coarse aggregate
blend, measuring up to 25 mm in diameter. This unique distribution
enhances the thermal shock properties and abrasion resistance.
The V-CAST 700 series is a well
engineered product line which incorporates many refractory advancements
resulting in products that are far more robust than traditional
refractories for molten metal.
The V-CAST 700 series is
fused-alumina based with silicon carbide additions up to 30%. More than
10 channel induction furnaces are currently lined with these materials
and showing improved service. These products are showing excellent
success in extreme environments such as:
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