It is applied for deposit of high resistant layers on surfaces of hot stamps and extruders which, even under considerable loading, shouldn't leave wear tracks on surfaces of deformable details. Mainly, it is applied in automotive industry (car body stamps, stamps of deep stamping, etc.). Layers are deposit on details made of bronze, as well as of cast and usual steel.
DC electr. +
Redry for 2h at 250°C. Before welding joints have to be cleaned from oil and cracks.
Recommendations:
-electrode with small declination (10-20о) along-track direction;
- welding with short arc.
For improvement of deposit degasifying the low speed of welding is applicable. Heavy parts (sections are higher than 6 mm) have to be previously heated to 150-250оС.
AWS A5.6 |
:ECuMnNiAl |
DIN 8555 |
:E 31-UM-300-CN |
W.Nr. |
DIN |
2.0916 |
CuAl5 |
2.0928 |
G-CuAl9 |
2.0920 |
CuAl8 |
3.0460 |
CuZn20A2 |
Cu |
Others |
99 |
1 |
|
Condition |
0.2% Yield Strength |
Tensile Strength (N/mm2) |
Elongation (%) |
Hardness |
|
НВ |
||||||
Required |
DIN 8555 |
AW |
|
|
|
225-275 |
Typical values after welding |
AW |
1180 |
660 |
8 |
300 |
Elecu® BCuNi |
Elecu® BCuAl |
Elecu® BCuSn |
Elecu® BCuSi |