Metal
Coating (also known as Thermal
Spraying) is used for the bonding of
hot Zinc, Aluminium or various
amalgams to blast cleaned surfaces.
It is
generally used when hot-dip
galvanising is not possible because
the fabrications are too complex or
may distort.
As in
the case of Aluminium welding of
like metals, to prevent stress
corrosion cracking.
This
treatment is specified by Network
Rail, the Highways Agency and the
Water Authorities as the base layer
for further paint coats,
particularly on immersed
fabrications.
We have
recently completed the thermal
spraying of all the core welds for
the M.o.D. on their BR90 bridging
project using an amalgam of
Aluminium and Zinc on Aluminium
fabricated modules, which have a
life expectancy of 30yrs.
Radleigh
Metal Coatings are members of TSSEA
( The Thermal Spraying and Surface
Engineering Association.
Thermal
spray coating is used on smaller and
intricate fabrications and can act
as a replacement for galvanizing. It
is applied in accordance with ISO
22093. It is also used on very large
bridge structures and lighting
columns for the Highways Agency.
Other
applications include thermal
spraying of trailer chassis, chimney
stacks, exhausts and silencers.
