News
Technology
March 2014
72
The Gardo Hybrid technology is the first
cold forming process for steel without
phosphates, based on a conversion
coating.
With this innovative technology Chemetall
has responded to the market requirement
for an environmentally sound cold forming
technology, combined with a high forming
performance.
The Gardo Hybrid technology substitutes
the
zinc-phosphate
layer
with
a
phosphate-free metal-organic one.
This
innovative
conversion
layer
provides the same excellent properties
and behaviours as a traditional zinc-
phosphate.
However it fulfils better health and
environmental safety requirements: the
formation of the metal-organic layer
does not require any CMR (carcinogenic,
mutagenic and toxic to reproduction)
substances like nickel, and the lower
treatment temperature decreases the
energy consumption.
Gardo Hybrid can be easily integrated
into current cold forming operations since
no major modifications to the lubricant,
treatment line or application process are
needed.
The reason for this is that the tribological
system was not changed; it is still divided
into two parts: the conversion layer
providing the unique surface and the
lubricant on top.
Gardo Hybrid advantages at a glance:
•
Less energy by lower treatment
temperatures
•
Less consumption
•
Reduced sludge formation
•
No activation needed
•
Free of heavy metals, except iron
•
Free of CMR substances
•
No major change in treatment lines
•
No additional equipment needed
•
Security, health and environment
friendly
Chemetall GmbH – Germany
Website
:
Phosphate-free cold forming
DL05 steel wire rod
development
Chinese steelmaker Wuhan Iron
and Steel (Group) Co (WISCO)
has overcome several technical
challenges
in
the
further
development of its DL05 steel wire
rod for cable applications.
The product now demonstrates
improved
electrical
conductivity
and a reduction in non-metallic
inclusions,
thereby
reaching
advanced international standards for
the product.
The DL05 steel wire rod for cables is
chiefly used in telecommunication
lines, trolley bus systems, and in the
subway and railway sectors.
It is also said to perform well in
corrosive environments.
Wuhan Iron and Steel (Group Co)
– China
Website
:
