| HAO Zhi-ping,WANG Feng-qiang.The Effect of Hydrogen Absorption on Magnetic Properties of NdFeB and the Adhesive Strength of its Electrodeposited Coating[J],37(5):66-67,78 |
| The Effect of Hydrogen Absorption on Magnetic Properties of NdFeB and the Adhesive Strength of its Electrodeposited Coating |
| Received:June 30, 2008 Revised:October 10, 2008 |
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| DOI： |
| KeyWord:Neodymium-iron-boron Hydrogen absorption Keeping from hydroge Hydrogen pulverization Magnetic property Adhesive strength |
| Author | Institution |
| HAO Zhi-ping |
Sanhuan Sagami New Technology Co. , Ltd. ,Beijing , China |
| WANG Feng-qiang |
Sanhuan Sagami New Technology Co. , Ltd. ,Beijing , China |
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| Abstract: |
| Sintered NdFeB magnet absorbs hydrogen . After absorption of hydrogen the magnetic properties and electroplating strength of NdFeB magnet become weak notably. Hydrogen absorption should be avoided if possible during the process of pre-treatment, electroplating and chemical coating of NdFeB magnet. The mechanism of hydrogen absorption and hydrogen release of NdFeB magnet were analyzed and the prevention measure was given. The experiment results show that the adhesive strength of electrodeposited coating has distinct enhancement. There is no decrease ofits magnetic performance. |
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