Coatings
* Introduction
& What are
coatings
a
I part the
Deposition of a thin
layes of
material on
of surface of finished pat
↳
purpos is to
modify certain
propertin of base material
Physical properties resistance hardnes resistance
wear and
fatique
~ - >
,
ession resist. heat resistance
roughness
- > ,
,
>
-
powsity leg for absorption of lubricants
~ Chemical properties carosion resistance
>
- Chemical inectia
testhetic Colour
-
properties >
-
texture , matte (
>
-
(shiny
* Mechanical
↳
purely done
by using meck.
forces I
*
Cladding or Clad
banding
schemical mech I
Thorough .
rincing of surfaces
clean ?
↳
extremely surface needed
I
high pressure compaction to obtain
metalling ical
bind between both metals
*
heating -> additional
diffusion -
annealing
*
Using
rolls ,
dies (Cr .
extwish) ,
explosion
Sheets
* , bor
* Steel with stainless steel
coatings made
of copper ,
nicket
alloge, ...
Aluminium CACClad
alloys
AS
Alloys
* Coated with other
Coppes ,
.
....
total thickness
Coating layer
*
with thickness
equal to 10-13 %
of
, &
Application examples
na
Bumper , besthetice
, Corosion resistance ,
weight
~ Bimetals
opening
+
closing of electr .
Contacte or
, indication
volver
of T
* Explaive cladding
*
Coating material accelerated
Controlled
by detonation
Collisions of layers material
* =>
flow plasma jet is
produced
↳ Consists of material from both surfaces ,
contamination
gases present
their Oxides , ,
↳
expelled from Contact Zone due to set
angle
band between 'un-contaminated
metallurgical two
↳
surfaces
Application dissimilar
D s metal
joints
↳ econmical metals
use
of expensive
↳Carrosion andla evesion rerist .
layer
spressive vessels , containers Heat each ,,...
cladding
,
↳ Wear resist .
Layer
(rotililites (
↳ En
Shielding
* Mechanical
impact plating
or
Porte had spheres
↑
together with material (glas ceramic,.. ,
coating miced (fine metos particles
+
ere
intensively rotating barrel
in a
impact 'Cold welds
necessary energy for
an causes
↳ low cost corrosion
protection
process ,
mainly for
Soft coating
a materials (Id ,
En , Per , Sn , ...
* Thickness 125 m (
* Introduction
& What are
coatings
a
I part the
Deposition of a thin
layes of
material on
of surface of finished pat
↳
purpos is to
modify certain
propertin of base material
Physical properties resistance hardnes resistance
wear and
fatique
~ - >
,
ession resist. heat resistance
roughness
- > ,
,
>
-
powsity leg for absorption of lubricants
~ Chemical properties carosion resistance
>
- Chemical inectia
testhetic Colour
-
properties >
-
texture , matte (
>
-
(shiny
* Mechanical
↳
purely done
by using meck.
forces I
*
Cladding or Clad
banding
schemical mech I
Thorough .
rincing of surfaces
clean ?
↳
extremely surface needed
I
high pressure compaction to obtain
metalling ical
bind between both metals
*
heating -> additional
diffusion -
annealing
*
Using
rolls ,
dies (Cr .
extwish) ,
explosion
Sheets
* , bor
* Steel with stainless steel
coatings made
of copper ,
nicket
alloge, ...
Aluminium CACClad
alloys
AS
Alloys
* Coated with other
Coppes ,
.
....
total thickness
Coating layer
*
with thickness
equal to 10-13 %
of
, &
Application examples
na
Bumper , besthetice
, Corosion resistance ,
weight
~ Bimetals
opening
+
closing of electr .
Contacte or
, indication
volver
of T
* Explaive cladding
*
Coating material accelerated
Controlled
by detonation
Collisions of layers material
* =>
flow plasma jet is
produced
↳ Consists of material from both surfaces ,
contamination
gases present
their Oxides , ,
↳
expelled from Contact Zone due to set
angle
band between 'un-contaminated
metallurgical two
↳
surfaces
Application dissimilar
D s metal
joints
↳ econmical metals
use
of expensive
↳Carrosion andla evesion rerist .
layer
spressive vessels , containers Heat each ,,...
cladding
,
↳ Wear resist .
Layer
(rotililites (
↳ En
Shielding
* Mechanical
impact plating
or
Porte had spheres
↑
together with material (glas ceramic,.. ,
coating miced (fine metos particles
+
ere
intensively rotating barrel
in a
impact 'Cold welds
necessary energy for
an causes
↳ low cost corrosion
protection
process ,
mainly for
Soft coating
a materials (Id ,
En , Per , Sn , ...
* Thickness 125 m (
