Hitachi Metals: フェライト磁石で代用！
remplacé par un aimant en ferrite！
Ersetzt durch Ferritmagnet！
Substituted by ferrite magnet！
日立金屬：用鐵氧體磁鐵代替
ーネオジム磁石を使わずー
ーレアアース低減のEVモーターー
中国依存を回避：
ネオジムを使った磁石：
ネオジムを使った磁石は、モーターの高性能化に欠かせない強力な磁石だ。
フェライト磁石で代用：
ー鉄が主成分で、価格が5分の1程度の「フェライト磁石」ー
日立金属は、フェライト磁石で代用する。
この技術や素材をモーター製造会社に供与する。
レアアース需要が急増：
EVの普及などで需要の急増が見込まれるレアアース
世界各国は、中国に生産を依存している。
今後、日立金属は、
レアアースの使用量を減らした、EV用モーター実用化にメーカーと取り組む。
日本経済新聞
https://www.nikkei.com/article/DGXZQOUC271EE0X21C22A1000000/
Hitachi Metals : remplacé par un aimant en ferrite
ーPas d’aimants en néodymeー
-Moteur électrique à terres rares réduites-
Eviter la dépendance chinoise :
Aimants avec néodyme :
Les aimants utilisant du néodyme sont des aimants puissants qui sont essentiels pour les moteurs à hautes performances.
Remplacer par un aimant en ferrite :
– “Aimants en ferrite” dont le composant principal est le fer et qui coûtent environ un cinquième du prix –
Hitachi Metals remplacera les aimants en ferrite.
Cette technologie et ces matériaux seront fournis aux constructeurs automobiles.
La demande de terres rares augmente :
La demande de terres rares devrait fortement augmenter en raison de la propagation des véhicules électriques, etc.
Les pays du monde entier dépendent de la Chine pour la production.
À l’avenir, Hitachi Metals
Travailler avec les fabricants pour commercialiser des moteurs pour véhicules électriques qui utilisent moins de terres rares.
Nihon Keizai Shimbun
Hitachi Metals: Ersetzt durch Ferritmagnet
ーKeine Neodym-Magneteー
-Elektromotor mit reduzierten Seltenen Erden-
Abhängigkeit von China vermeiden:
Magnete mit Neodym:
Magnete, die Neodym verwenden, sind starke Magnete, die für Hochleistungsmotoren unerlässlich sind.
Ersatz durch einen Ferritmagneten:
– “Ferrit-Magnete”, deren Hauptbestandteil Eisen ist und etwa ein Fünftel des Preises kosten –
Hitachi Metals wird Ferritmagnete ersetzen.
Diese Technologie und Materialien werden den Automobilherstellern zur Verfügung gestellt.
Nachfrage nach Seltenen Erden steigt:
Die Nachfrage nach Seltenen Erden wird voraussichtlich aufgrund der Verbreitung von Elektrofahrzeugen usw. stark steigen.
Länder auf der ganzen Welt verlassen sich bei der Produktion auf China.
In Zukunft wird Hitachi Metals dies tun
Zusammenarbeit mit Herstellern zur Kommerzialisierung von Motoren für Elektrofahrzeuge, die weniger seltene Erden verwenden.
Nihon Keizai Shimbun
Proposing High-Performance Ferrite Magnets for xEV Traction Motors
December 9, 2022
Hitachi Metals
has verified in simulations that by optimizing the design of motors that use our high-performance ferrite magnet NMF® 15 (hereinafter “ferrite magnet motors”),
they are able to achieve the same level of output as traction motors for xEV*1 that use neodymium magnets.
Ferrite magnet motors
do not use neodymium, a rare earth element, or dysprosium or terbium, resources which are particularly limited in quantity.
As such,
they are expected to reduce resource risks and costs in addressing the growing demand for xEVs.
Hitachi Metals now proposes
high-performance ferrite magnets in addition to neodymium magnets for use in xEV traction motors.
1. Background
In order to realize carbon neutral, decarbonized societies, xEVs are expected to account for an ever- increasing percentage of vehicle production going forward.
This is expected to lead to an increase in production of neodymium magnets used in traction motors and generators for xEVs.
That being said, neodymium magnets use not only neodymium, which is classified as a light rare earth among rare earths,
but also dysprosium and terbium, which are heavy rare earths which are particularly limited in quantity as resources.
As such, there are concerns that resource risks will increase as demand grows.
In addition to focusing on improving the characteristics of neodymium magnets, which lead to smaller and lighter motors for xEVs,
Hitachi Metals has also been reducing the amount of heavy rare earths used and improving recycling technology to enhance material flows (to reduce the purchase and use of rare earths).
Against this backdrop,
the Global Research & Innovative Technology center (GRIT) at Hitachi Metals has been studying the application of ferrite magnets in traction motors for xEVs as a new approach to mitigate resource risks.
2. Overview
Hitachi Metals has recently conducted
a simulation to optimize the design of motors based on the idea of applying our NMF® 15 high-performance ferrite magnets in xEV traction motors.
In terms of magnetic properties,
these magnets deliver the world’s highest levels among ferrite magnets.
As a result,
we have verified that by optimizing the mounting positions and size of the magnets,
ferrite magnet motors can be made to achieve the same level of output as a motor using a neodymium magnet under certain conditions*2 as shown in the following design example.
High-performance ferrite magnets used [1]:
30% increase in motor weight, with equivalent output level High-performance ferrite magnets used [2]:
Equivalent weight and output levels achieved by increasing rotation speed by 50%.
httsp://www.hitachi-metals.co.jp/e/index.html
https://www.hitachi-metals.co.jp/e/press/pdf/2022/20221209en.pdf