Epson Atmix's superfine alloy powders are divided into two main
types according to the materials from which they are made and
their uses: magnetic powder and
metal injection molding
powder. The company produces these superfine alloy powders using
a modified high-pressure water atomization process. In this
process, metal that has been melted in a high-frequency
induction furnace is atomized by blasting it with pressurized
water. The atomized metal is then rapidly cooled, producing a
powder with regularly-sized, micron-order particles, and uniform
composition and characteristics.
Magnetic powder is used in electronic components such as
inductors, choke coils, and reactors that are needed to
control voltages in smartphones, notebook PCs, and other
high-performance mobile equipment. Epson Atmix states that its
magnetic powder exhibits particularly good energy conductance
and thus contributes significantly to reducing the power
consumption and size of voltage control components, as well as
to supporting high frequencies and large currents.
The expanding global mobile equipment market is not the only
market driving demand for magnetic powder. This powder is also
attracting considerable attention from the likes of the
automotive industry and other industries demanding efficient
power consumption, which see the potential for an expanding
number of new applications.
MIM powder is used in the production of metal injection
molded parts for applications that require parts with complex
shapes yet high accuracy and strength. The applications range
from special medical equipment to automobile engines. Epson
Atmix has a broad lineup of MIM powders that includes, for
example, stainless steel and low-alloy steel.
In addition, the size of powder particles can be adjusted to
suit a given application, helping to increase the strength of
metal injection molded parts. There is expected to be steady
future demand for MIM powder as the markets grow in the medical,
automotive and other industries.