Advanced Metal Powders
Featuring high sphericity, low oxygen content, and uniform composition, achieve core applications in multiple high-end industrial fields.
Molding Choke Powders
Molding chokes (also known as molded power inductors) are mainstream SMD power inductors .They are manufactured by embedding copper winding into metal magnetic powder and pressing them into a single component under high pressure, with pins directly formed on the surface, eliminating traditional separated cores and bobbins.
Typical Properties
- Uniform chemical composition
- Low oxygen content
- Good Temperature Stability
- High tap density with low forming pressure
Principal Powder Grades
|
Alloy Powder |
Chemical Composition (wt%) |
||||||||
|
Si |
Al |
Cr |
Ni |
C |
O |
P |
S |
Fe |
|
|
FeSi |
3-6.5 |
- |
- |
- |
≤0.03 |
≤0.05 |
≤0.02 |
≤0.01 |
Bal |
|
FeSiAl |
8.5-9.9 |
5.0-6.0 |
- |
- |
≤0.03 |
≤0.05 |
≤0.02 |
≤0.01 |
Bal |
|
FeSiCr |
4.5-6.5 |
- |
4.5-5.5 |
- |
≤0.03 |
≤0.05 |
≤0.02 |
≤0.01 |
Bal |
|
FeNi |
- |
- |
- |
47-52 |
≤0.03 |
≤0.05 |
≤0.02 |
≤0.01 |
Bal |
Frequently used specifications of particle sizes
D50: 10 -12µm, 13-15µm, 16-19µm, 21-25µm,26-35µm
Molding choke powder matrix
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