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New
Powder Products
- Levitation-Melting and Gas Atomization -
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Features
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Active metals, such as Titanium, Ti-alloy, Rare Earth etc. can be made to fine powder with low oxygen content and high purity. |
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Refractory alloys (M. P. <1800 deg.C) which are impossible to make by
conventional process, can be made to fine powder. |
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Outline of Equipment
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It's possible to supply high purity powders by using only one continued process
to be combined both processes Levitation-melting and gas atomization.
These technologies were progressed by Daido Steel.
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Principle
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Principle
Levitation-Melting
(Principle diagram of Levitation Melting) |
Principle of Gas
Atomization
(Levi-Atomization Equipment) |
Molten metal is kept semi-floating in the
crucible, so it doesn't contact with the
crucible wall. |
Making high Purity Powder by Inert Gas
Atomization. |
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<Situation of
Levitation
Melting> |
<Condition of
Atomization> |
<Levi-Atomized
Powder> |
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Applications of Levi-Atomized
Powder
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Type of Alloy
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Size |
Chemical
Compositions (wt%) |
| C |
N |
O |
| Ti-Mo |
-250μm |
0.03 |
0.013 |
0.080 |
| Ti-6Al-4V |
-250μm |
0.05 |
0.007 |
0.053 |
| Ti-Al |
-250μm |
0.03 |
0.005 |
0.037 |
| R.E.alloy |
-250μm |
0.01 |
0.040 |
0.095 |
| Ni-Al |
-250μm |
0.01 |
<0.001 |
0.007 |
| Ni-base
Super-alloy |
-250μm |
0.01 |
0.001 |
0.003 |
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