Magnetics Business & Technology - September/October 2019 - 20

PRODUCT NEWS

Essex Magnet Wire Develops High-Temp
Insulation for Motor Windings

Technological advancements being made to increase the efficiency of electric driven vehicles as well as elevated performance
requirements of the traction motors and generators is making deterioration exponentially more severe, explained Leach. Designers have been forced to utilize power electronic speed control
with higher voltages and faster switching frequencies to drive the
motors which puts severe stress on motor windings. The new
insulation thrives in conditions where typical winding insulation
utilized for standard motors will fail under similar conditions in
only a few hours, he said.
The Essex innovation center has a dedicated team of scientists
and engineers exploring technologies impacting magnet wire.
Efforts involve testing and innovating thermosets, thermoplastics,
and additives as well as focusing on conductor processing and
fabrication processes.

MagForceX innovation center

For more information, visit, www.essexwire.com.

New Line of Amorphous, Custom
Nanocrystalline, & Nickel Iron Cores Available
from MH&W

A new, high-temperature insulation system for the windings of
traction motors has been developed by Essex Magnet Wire at its
MagForceX innovation center in Fort Wayne, IN. The new product targets motor windings for hybrid electric vehicles, plug-in
hybrid electric vehicles, as well as electric vehicles.
EnduroTemp 260+ is a thin, film insulation designed to withstand
higher operating temperatures rated at 265 degrees Centigrade
thermal endurance. The product can extend motor life and protects motors against deterioration created by the modern power
electronics controlling them, says the company.

Matthew Leach

Matthew Leach, vice president of innovation and
head of the innovation center said that the product is the latest in the company's line of developments for the EV market. "This is the very type
of disruptive technology that we are looking to
develop to help the magnet wire industry continue
to evolve," he said. "Being able to increase the
temperature threshold without sacrificing performance - in fact, helping to increase it - is something that is very exciting for our team."

MH&W International, a master distributor of magnetic and
thermal materials in North America, has added to its portfolio
an extensive line of amorphous cores, custom nanocrystalline
cores, and 80% nickel iron alloy cores as the result of a new supplier partnership.
The core configurations include toroids, gapped toroids, cut
cores, and specialty stampings. With the addition of these products, MH&W can now offer competitive prices on low frequency
magnetics designs in addition to the high frequency magnetics
designs it already supported, the company said.
Amorphous ribbon, shown above, offers the advantage that
amorphous metals do not have crystalline structures like other
magnetic materials. All the atoms in an amorphous metal are
randomly arranged, thus giving it a higher resistivity value about
three times that for crystalline counterparts. Amorphous alloys
are prepared by cooling the melt at about 1 million degrees per
second.
This fast cooling does not give the atoms enough time to rearrange into stable crystalline form, resulting in a metastable

MagForceX team

Magnetics Business & Technology *

September/October 2019

www.MagneticsMag.com

https://essexwire.com/ http://www.MagneticsMag.com

Magnetics Business & Technology - September/October 2019

Table of Contents for the Digital Edition of Magnetics Business & Technology - September/October 2019