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스텔라이트
용접방법
Welding techique |
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| Hardfacing : An
Overview |
Hardfacing
is the process of depositing a wear
resistant alloy material on metal
part by form a protective surface
which resists abrasion, heat, corrosion,
cavitation and other types of wear.
There are three types of welding used
with rods and electrodes - oxy-acetylene
(O-A), gas tungsten arc (GTA), and
shielded metal arc (SMA).Gas metal
arc (GMA) welding is used for wires
while plasma transferred arc (PTA)
is used for powder consumables. |
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Alloy
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O-A |
GTA |
SMA |
GMA |
PTA |
WT-1 |
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WT-6 |
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WT-12 |
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WT-20 |
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WT-21 |
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WT-32 |
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WT-190 |
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WT-694 |
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WT-800 |
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WT-40 |
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WT-50 |
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WT-60 |
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Norem2A |
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Good |
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Not Available |
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Not Recommended |
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O-A
denotes Oxy-Acetylene
GTA denotes Gas Tungsten
Arc (TIG)
SMA denotes Shilded
Metal Arc (MMA)
GMA denotes Gas Metal
Arc (MIG)
OTA denotes Plasma
Transterred Arc |
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