Metal spray powders
 Plasma spraying
In principle employing the same process as flame spraying, the
flame of the plasma spray comprises an electrically excited plasma
of high velocity and temperature (» 15,000°K). Therefore, a denser
coating (»98%) can be achieved than with flame spraying. This method
is particularly favored where no subsequent fusing is to be carried
out. Coating thickness is 0.1-1.5 mm, and deposit rate 2-8 kg/h.
HVOF
High-Velocity Oxy-Fuel guns offer an important new thermal spray
process which combines extremely high velocity (1,000 m/s) and moderate
temperature in the flame. HVOF coatings have an excellent density
(>99.5%), hardness and bond strength. Coating thickness is 0.1-2.0
mm, and deposit rate up to 7 kg/h.
HVOF and plasma spraying grades - Nickel based
The following powders are normally carried in stock. There are
other powders in the range, which are available on request.
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HMSP
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Particle size micron
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C%
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Si%
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B%
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Fe%
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Cr%
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Ni%
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Mo%
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Cu%
|
Other%
|
Vickers Hb
|
Recommended use
|
|
1645-02
|
53-20
|
0.35
|
3.7
|
1.8
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2.6
|
8.9
|
Bal
|
-
|
-
|
-
|
450
|
Alloys for coating steel or gas turbine blades
or other applications requiring extremely dense plasma coatings.
The layer can be rendered completely dense by heat treatment.
|
|
1650-02
|
53-20
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0.45
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3.9
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2.3
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2.9
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11.0
|
Bal
|
-
|
-
|
-
|
570
|
|
1660-02
|
53-20
|
0.75
|
4.3
|
3.1
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3.7
|
14.8
|
Bal
|
-
|
-
|
-
|
780
|
HVOF and plasma spraying grades - Cobalt based
|
HMSP
|
Particle size micron
|
C%
|
Si%
|
Cr%
|
Fe%
|
Ni%
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Co%
|
Mo%
|
W%
|
Vickers Hb
|
Recommended use
|
|
2637-02
|
53-20
|
1.1
|
1.0
|
28.5
|
-
|
-
|
Bal
|
-
|
4.2
|
380
|
Stellite 6* Co base for corrosion and Oxidation
resistance.
Stellite F* Better Hot hardness values than
for equivalent
|
|
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|
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|
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|
|
|
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2640-02
|
53-20
|
1.7
|
1.2
|
25.7
|
1.0
|
22.5
|
Bal
|
-
|
12.5
|
400
|
|
|
|
|
|
|
|
|
|
|
|
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*Registered trademark of Stoody Deloro Stellite Corp.
HVOF and plasma spraying grades - Iron based
|
HMSP
|
Particle size micron
|
C%
|
Si%
|
Fe%
|
Cr%
|
Ni%
|
Mo%
|
Mn%
|
Others%
|
Vickers Hb
|
Recommended use.
|
|
316L
|
53-20
|
<0.03
|
0.8
|
Bal
|
17.0
|
12.0
|
2.5
|
0.2
|
-
|
180
|
316L*
|
|
316HIC
|
75-45
|
0.12
|
0.8
|
Bal
|
17.0
|
13.5
|
2.5
|
0.2
|
-
|
180
|
*A.I.S.I. Standard
|
