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Grirem Advanced Materials Co.,Ltd.(hereinafter referred to as “Grirem”) was founded after an entire restructuring to National Engineering Research Center for Rare Earth Materials(hereinafter referred to as “CREM”) as a joint-stock company in 2001, with Grinm group Co., Ltd. ( previous General Research Institute for Non-ferrous Metals, hereinafter referred to as “GRINM”) as the main sponsor. [More]

Aniso Bonded Magnet

1. Aniso bonded magnet

Aniso bonded magnets are mainly produced by compacting molded aniso-magnetic powders with epoxy resin. The motors with this kind of magnet have large output torque, stable rotation and low noise, which promotes the development of motor components to miniaturization and lightweight, and are widely used in new energy vehicles, intelligent home appliances, robots and other high-tech fields.

GriREM developed the preparation technology and equipment of aniso magnetic powders/rings with high performance to achieve the batch production. The magnetic energy product can be more than twice of the traditional isotropic bonded magnet, which is conducive to the miniaturization of the motor/electronic device; moreover, the product has high dimensional accuracy, large freedom of shape, and excellent corrosion resistance.

2. Typical grade of aniso magnetic powders

Products	B_r(kGs)	H_cb(kOe)	H_cj(kOe)	(BH)_m(MGOe)
GHA3914	12.8-13.5	9.5-9.9	13.0-15.0	38-42
GHA3417	12.0-12.7	9.2-9.6	15.0-17.0	33-36

3. Typical magnetic wave of aniso rings