Rare earth permanent magnet material and manufacturing method thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10867727
APP PUB NO 20170062105A1
SERIAL NO

15060123

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present invention provides a rare earth permanent magnet material and manufacturing method thereof. The manufacturing method of the present invention comprises a multi-arc ion plating step and a infiltrating step, wherein multi-arc ion plating process is adopted to deposit a metal containing a heavy rare earth element on a surface of a sintered neodymium-iron-boron magnet which has a thickness of 10 mm or less in at least one direction; and then heat treatment is performed on the sintered neodymium-iron-boron after deposition. The sum of an intrinsic coercive force (Hcj, in unit of kOe) and a maximum magnetic energy product ((BH)max, in unit of MGOe) of the permanent magnet material of the present invention is 66.8 or more. Moreover, the manufacturing method of the present invention has high production efficiency and does not increase harmful substances, and the price of devices is relatively low.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
BAOTOU TIANHE MAGNETICS TECHNOLOGY CO LTDBAOTOU INNER MONGOLIA 014030

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Ya Baotou, CN 81 107
Diao, Shulin Baotou, CN 8 15
Dong, Yi Baotou, CN 102 3193
Hu, Zhanjiang Baotou, CN 2 8
Liu, Gazhen Baotou, CN 2 4
Miao, Juchang Baotou, CN 6 15
Wu, Shujie Baotou, CN 8 15
Yi, Haibo Baotou, CN 9 17
Yuan, Wenjie Baotou, CN 11 15
Yuan, Yi Baotou, CN 90 395
Zhang, Qian Baotou, CN 942 7505

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Jun 15, 2028
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jun 15, 2032
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00