v-proteq - Mamesta

V-PROTEQ ®
CVD and PVD Coatings
High wear resistance
Improved electrical
conductivity
Improved optical
properties
Good dimensional and
shape accuracy
Highest level of purity
Adjustment to optimum
friction properties
Optimisation of adhesive
properties
Excellent corrosion
resistance
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V-proteq ®
V-proteq ® is the collective designation
of all AI MT’s CVD and PVD processes
What is V-proteq ® CVD?
CVD (Chemical Vapor Deposition)
is a thermochemical coating
process in which there is a gas
phase reaction on workpiece
surfaces which leads to the
deposition of hard ceramic
material layers. The usual coating
temperatures are in the region of
850 –1,050 °C.
How are V-proteq ® CVD coatings built up?
Components to be coated are
loaded onto a fixture and placed
in a reactor with a process gas.
The process gases contain the
coating elements that are
deposited on the workpieces
under defined conditions.
Depending on the composition
of the process gas, carbide,
carbonitride, nitride and/or oxide
layers are applied.
All layers can be deposited as
single or multi-layer coatings.
Thanks to a metallurgical bond
with the substrate material, layers
with excellent adhesion are
obtained.
Suitable materials for treatment with V-proteq ® CVD
All materials that can withstand
temperatures of over 850 ºC
are suitable for coating.
(All technical values published in this brochure
are subject to the test conditions specified.
We therefore emphasise that the applications
and operating conditions, along with the end
user’s practical experience, will ultimately
determine the level of performance achieved
by the coating and/or coating system)
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V-proteq ®
V-proteq ® is the collective designation
of all AI MT’s CVD and PVD processes
Schematic layout of a high and medium-temperature
CVD plant
With TiC, TiCN or TiN-coated cold conversion tools
such as trimming matrices and forming, hole and
cross-head punches stand out because of their long
useful lives as a result of the V-proteq ® CVD process.
Even, homogeneous coating of drill holes
and cavities by the V-proteq ® CVD process
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V-proteq ®
CVD/PVD
General layer properties
V-proteq ® CVD layers are suitable
for use in special applications such
as those requiring:
high abrasion resistance
high adhesive resistance to
wear, e.g. avoidance of cold
welding
improved corrosion resistance
homogeneous coatings, even
in drill holes and cavities
Normal layer thicknesses
Depending on the specific
requirements of the application,
layer thicknesses of 2–10 µm can
be achieved with V-proteq ® CVD.
In combination with oxide layers,
overall thicknesses of up to 30 µm
can be achieved for special
applications.
PVD (Physical Vapor Deposition) is
a thermophysical coating process
in which coating materials are
vapourised within a vacuum
chamber containing reactive gas
and then deposited onto a
component. There are a number
of PVD methods which include
arc evaporation and magnetron
sputtering through which a variety
of elements or compounds can be
deposited.
What is V-proteq ® PVD?
How are V-proteq ® PVD coatings built up?
In the arc PVD process, the coating
material is vaporized in a vacuum
environment with the aid of an
electric arc. The vaporized material
is converted by a glow discharge
into a plasma state. The layers
created by this procedure, in the
temperature range of 200–550ºC,
confer good tribological properties
to a wide range of materials.
Single and multi-layer coating, as
well as multiple-element layers and
coating systems with good
adhesion, can be produced.
In the magnetron PVD process, the
coating material is sputtered from
a target using high energy particles.
Compounds can be deposited on
a component by the addition of a
reactive gas, such as nitrogen or
oxygen. The layers which are
created at temperatures up to
150 ºC, can be used on a wide range
of materials, including plastics.
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V-proteq ®
CVD/PVD
The three phases of the layer built-up with the V-proteq ® PVD coating
Cover picture:
V-proteq ®-WR-coated metal-cutting tools by the
PVD process
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Technical plasma in a PVD plant at AIMT H&ST
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V-proteq ®
PVD
Suitable materials for treatment with V-proteq ® PVD
All high and low-alloy steels and
hard metals can be coated with
the arc PVD process.
Almost all materials such as metals,
plastics and ceramics can be coated
with the magnetron PVD process.
Properties such as
high hardness
wear resistance
sliding ability due to reduced
coefficient of friction
resistance to thermal oxidation
The magnetron PVD process is
characterised in particular by
excellent dimensional accuracy
of the layers
electrical conductivity of the
surfaces
possibility of partial coatings
reduction of coefficient of
friction
deposition of very pure layers
the layers’ resistance to vacuum
(low outgassing rate)
barrier layers (e.g. gas barriers
for plastics)
non-stick properties of the
surfaces
General layer properties
are major characteristics of the arc
PVD process.
Normal layer thicknesses
Layer thicknesses from a few
nanometres up to a maximum
of about 10 µm can be achieved
with both technological variants.
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V-proteq ®
PVD
Saw blades made of high speed steel, hardened,
tempered and coated with V-proteq ®-WR
Heat-dissipating V-proteq ®coating on a
molybdenum sheet
V-proteq ® layer composition: optimum solutions can
be created for every kind of application from single
layer up to 30-layer multilayer coating systems.
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basematerial
V-proteq ® PVD coatings are
very successful with tooling, such
as drawing dies, drilling and
shank end mills
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V-proteq ®
Process Variants
Process variants
The V-proteq ® process variants can
be created with both the CVD
and the PVD process. V-proteq ®
not only improves surfaces but
it also makes components more
economical in practical use.
Our experienced specialists can
offer you a comprehensive range
of coating options tailored to your
individual applications. V-proteq ®
offers practical and economical
solutions.
With the V-proteq ® PVD coating,
the size and shape of the components to be coated are retained as
the process temperatures selected
do not alter the condition of the
material.
It is also possible to maintain tight
tolerances on parts which undergo
V-proteq ® CVD coating. This is
achieved by selecting and carefully
matching the heat treatment and
CVD coating parameters of the
material being processed.
Fields of use
mechanical engineering
in general
the automotive sector
chemical industry
tool and mould manufacture
V-proteq ®-TT (Tight Tolerances)
V-proteq ®-WR (Wear Resistance)
With this process variant, hard,
wear-resistant layers can be
applied that significantly improve
the abrasive and adhesive wear
characteristics of tools and
components.
The main advantages are
considerably improved lifetime
higher cutting speeds
reduced down time and lost
production
improved emergency operation
properties
Fields of use
mechanical engineering
in general
valves and fittings
the automotive sector
mining
chemical industry
printing machinery construction
hydraulic and pneumatic
industry
food processing industry
measurement and control
technology
textile machinery construction
defence technology
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V-proteq ®
Process Variants
V-proteq ®-EL (Electrical)
With V-proteq ®-EL, metal layers are
created that improve the electrical
conductivity of a component.
Partial coatings can also be applied
depending on the requirements.
The use of ceramic coating
materials permits the deposition
of insulating layers for applied
electrical currents.
Fields of use
mechanical engineering
in general
office and data technology
electronics/electrical engineering
EMC, shielding
domestic appliances
communications technology
measurement and control
technology
V-proteq ®-OP coatings on plastic
To improve withdrawal, tool bits on an industrial
scale are coated with V-proteq ® CVD.
V-proteq ®-OP (Optical)
In the optical sector, the
applications of thin layers can
be classified into two groups:
Functional coating systems for
the reflection or transmission of
spectrally narrow band optical
radiation (e.g. for mirrors, lenses,
translucent parts)
Protective coating systems to
provide optical properties of
coated or uncoated components
Fields of use
communications technology
laser technology
optical industry
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V-proteq ®
Process Variants
V-proteq ®-FR (Friction)
Coatings that reduce or increase
friction on assemblies and
components can be created
with this process variant. With
targeted selection of the coating
materials it is possible to modify
the topography of the surfaces
as required.
V-proteq ®-DE (Decorative)
Fields of use
mechanical engineering
in general
chemical industry
printing machinery construction
hydraulic and pneumatic
industry
engine technology
pharmaceutical and medical
device manufacture
textile machinery construction
defence technology
In contrast to technical-functional
coatings, the following coatings are
intended to be used for the visual
improvement of components.
V-proteq ®-AP (Adhesion Promotion)
The properties of V-proteq ® coatings
can be modified in such a way
that the coated components
can be optimised for further
processing stages such as gluing
and soldering.
Further areas of application for
V-proteq ®-AP are to be found in
the field of plastics processing.
For example, plastic injection
moulding tools are treated to
improve their release properties,
and components for extrusion
plants are coated to reduce the
tendency to stick.
Fields of use
mechanical engineering
in general
office and data technology
printing machinery construction
electronics/electrical engineering
plastics processing industry
pharmaceutical and medical
device manufacture
textile machinery construction
Coated thread guide elements are used with
great success in the textile industry.
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V-proteq ®
Process Variants
V-proteq ®-OX (Oxidation)
V-proteq ®-OX increases the
thermal oxidation resistance of
the substrate materials. With
the appropriate selection of the
coating material it is possible to
prevent problems like unwanted
oxide formation in plastic injection
tools, in the cutting geometry of
milling tools and with components
of lighting systems.
Fields of use
mechanical engineering
in general
electrical engineering
heating technology
plastics processing industry
tool manufacture
Partial V-proteq ®-FR coating
Combination coating made of electroless nickel
(DURNI-COAT ®) and V-proteq ®-WR
V-proteq ®-AP coated injection
moulding tool
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V-proteq ®-UP coating on loudspeaker membranes
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V-proteq ®
Process Variants
V-proteq ®-CO (Corrosion)
This coating variant is basically
a combination layer made of
DURNI-COAT ® (electroless nickel)
and V-proteq ®-PVD. With this,
corrosion and wear resistance
properties can be combined
without harming the environment
(keyword: Cr VI problems).
Fields of use
mechanical engineering
in general
the automotive sector
chemical industry
printing machinery construction
aircraft manufacture
hydraulic and pneumatic
industry
plastics processing industry
reactor technology
textile machinery construction
Combination coated head housing made of brass
(electroless nickel DURNI-COAT ®/V-proteq ®-CO)
V-proteq ®-UP (Ultra Pure)
With the use of very pure coating
materials and very pure technical
gases in clean room environments,
the purest coatings are deposited
with V-proteq-UP in high vacuum.
The coatings produced have low
outgassing rates and they are
therefore vacuum resistant.
Clean room with magnetron sputter plant
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Fields of use
analysis technology
semiconductor industry
aerospace
medical technology
pharmaceutical and medical
device manufacture