Metal spray powders
 Powder welding
Powder welding employs a standard oxy-acetylene torch, with the
powder fed into the flame from an attached hopper.
The powder melts to provide a dense coating, forming a strong bond
to the base material by surface alloying and diffusion. Powders
including fluxing elements such as boron and silicon are necessary.
The powder welding process gives a coating thickness from 0.2 to
12 mm, and is typically used for smaller parts or repairs. It is
particularly suitable for the repair of cast iron and for repairing
defects in machined parts. The coating obtains a very smooth surface,
and can often be used with little or no further machining. The torches
are simple to use - only the flame requiring adjustment.
Powder welding grades - Nickel base
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
|
SIZE
|
C%
|
Si%
|
B%
|
Fe%
|
Cr%
|
Ni%
|
Mo%
|
Others
|
Vickers Hb
|
Recommended use
|
|
1015
1115
1615
|
106-20
|
0.03
|
2.0
|
1.1
|
0.5
|
-
|
Bal
|
-
|
Cu=
20%
|
210
|
Repair of Cast Iron e.g Engine Blocks
|
|
1020
1120
1620
1620-01
|
106-20
71-20
53-15
36-10
|
0.03
|
2.4
|
1.4
|
0.4
|
-
|
Bal
|
-
|
-
|
230
|
Welding of new Cast Iron moulds
Repair of machining errors
Repair of Engine blocks, bearings, threads,
and press tools.
Easy to machine. Can be filed by hand
|
|
1623-05
|
53-10
|
0.04
|
2.5
|
1.6
|
0.4
|
-
|
Bal
|
-
|
-
|
270
|
|
1025-40
1125-40
1625-40
|
106-200.05
|
0.05
|
2.7
|
1.8
|
0.4
|
-
|
Bal
|
-
|
-
|
295
|
|
1032-40
|
106-20
|
0.15
|
3.4
|
1.2
|
3.1
|
7.0
|
Bal
|
-
|
-
|
320
|
|
|
1035-40
1135-40
1635-40
|
106-20
71-20
53-15
|
0.32
|
3.7
|
1.2
|
3.0
|
7.0
|
Bal
|
-
|
-
|
360
|
Repair and build up of small plungers and
neck rings in the glass bottle manufacturing industry
|
|
1038-40
|
106-20
|
0.05
|
3.0
|
2.2
|
0.4
|
-
|
Bal
|
-
|
-
|
380
|
Very good fluidity for thin layers
|
|
1040
1140
1640-02
|
106-20
71-20
53-20
|
0.25
|
3.5
|
1.6
|
2.5
|
7.5
|
Bal
|
-
|
-
|
425
|
Repair and build up of worn moulds and other
parts in the glass bottle manufacturing industry. Also for
valves, bearings, splines, seal rings, valve gates, water
pumps, and sprockets. Good fluidity
|
|
1045
|
106-20
|
0.35
|
3.7
|
1.8
|
2.6
|
8.9
|
Bal
|
-
|
-
|
500
|
|
1050
1060
1660-02
|
106-20
106-20
53-20
|
0.45
0.75
|
3.9
4.3
|
2.3
3.1
|
2.93.7
|
11.0
14.8
|
Bal
Bal
|
-
-
|
-
-
|
580
810
|
All kinds of applications with high demand
on wear or corrosion resistance. Further improvement of wear
resistance can be obtained by mixing with carbides. For rocker
arms, bearings, diesel engine valves, crusher rolls, conveyer
screws, fan blades, textile spindles, pistons, pump shafts,
agricultural arms and mixer blades
|
|
