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DMI
are the world leaders in the hard chromium plating of automotive press and
large plastic moulding tools.
Benefits of the DMI process include reductions in press down time, die wear,
die maintenance, lubricant use, panel re-work and scrap and increases in
panel quality & production efficiency. New tools can be manufactured from
lower grades of material to reduce initial costs. Benefits can be
achieved on a wide range of base materials and panel materials.
Metal Forming:
Click here for more information
Plastic Moulding: Click here for more
information |
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DMI specialise in the
porous hard chromium plating of new and worn diesel engine cylinder
liners used in Rail, Marine, Power Generation and other Industries.
Liners processed by DMI (UK) range up to 400 mm diameter bore. Using
a combination of electroplating together with associated grinding,
honing and machining, DMI are able to surface treat new and to
recondition worn cylinder liners from diesel engines, pumps,
compressors and gas engines and return them to original size.
DMI are an accredited supplier of new cylinder
liners to OEMs. Click here
for more information |
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Hard chrome plating of components for self lubricating bearings used in
rail, aerospace and other industries. DMI hard chrome plating provides
wear resistance, anti stick properties, controlled surface finishes and very
low and consistent friction characteristics without the need for
lubrication. DMI process small or large batches of such components to very
high quality standards, with rapid turn around and at competitive prices.
DMI are able to set up quickly and cost effectively for a wide range of components
which enables us to offer a highly competitive service. |
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DMI (UK) hard chrome plate the stem area of automotive engine valves. The hard chrome
layer provides much improved wear resistance and anti-fretting and
anti-stick properties when compared to the base material and covers
dissimilar base materials which, if not coated, produce different sliding,
anti-stick and wear characteristics. The hard chrome layer provides a
consistent, homogeneous stem surface which is several times harder than the
valve base material. The result is substantially improved and consistent wear and corrosion
resistance. |
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Nickel and hard chrome plating of new rolls to improve their wear resistance
and surface characteristics and of worn rollers to return them to original
or better than original condition. Nickel is used to deposit thin layers
where corrosion resistance is required or thick layers where excessive wear
or damage is present. Hard chrome is used to provide wear resistance, low
friction, anti stick and controlled surface finish. Different surface
textures and finishes can be produced for different applications. The same
process is also applied to piston rods, pump and motor shafts, offshore components, etc. |
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Nickel and hard chrome plating of new and worn hydraulic cylinders and
piston rods used in a wide range of applications including mining, rail,
offshore and marine industries. Outside diameters and bores can be processed
using nickel and hard chrome to
provide a wide range of benefits. New components are processed to provide wear
and corrosion resistance, low friction and anti-stick properties and controlled
surface finishes. Worn components are processed to return them to original or
better than original condition as well as providing all of the above benefits. |
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Zinc electroplating with a
variety of passivations and sealing
provides excellent corrosion resistance and can act as a
sacrificial layer to protect the base material.
Passivations offer additional corrosion resistance.
Applying a sealant to these
deposits can further enhance performance.
The coating can be used as a base for other processes such as painting. |
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PTFE and MoS2 coatings such as Xylan, Everslik and Molykote are coatings which are
applied using a spray gun technique and are then baked at high temperatures.
These coatings provide good lubrication and controlled friction properties, are highly anti-corrosive and
are also heat resistant which allows them to be deployed in high operating
temperature applications. They provide a high level of chemical
resistance and are available in a wide range of colours and formulations to
suit operational requirements. |
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Hard,
chromic, plain and coloured anodising onto a range of
aluminium alloys,
giving a hard surface offering wear resistance, corrosion protection,
electrical resistance, uniform coverage and pleasing visual appearance with low friction, good
release and non-wetting properties. The anodising process which is best
suited to the requirements can be selected to give the optimum surface
characteristics for the particular application. |
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Alocrom is a process carried out
as a surface finish in itself or as a pre-treatment prior to painting. The
process offers corrosion protection, especially where electrical conductivity is
required.
DMI supply
Alocrom 100 (blue/green) and 1200 (gold) finishes. |
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Phosphate coating of steel components in itself or as a pre-treatment
providing anti-galling, corrosion protective, wear resistance, reduced friction and a good
base for oil retention, painting or other coatings such as painting. |
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Painting. DMI offer a complete
‘one stop’ service allowing
pre-coatings such as nickel, zinc, anodising, Alocrom and phosphating to be
combined with painting to provide customers with a finished component. Multi
coat and epoxy top coat processes in brush and spray application can be
offered. |
