Neodymium iron boron vibration magnetic field molding press device

Abstract

The invention relates to a neodymium iron boron vibration magnetic field molding press device. A vibration system module (10) is arranged at the outer side of a mould (5) positioned between a first electromagnet core (1) and a second electromagnet core (2) of the device. The vibration system module (10) comprises a vibration skeleton (11), an air inlet (12), a solenoid valve (13) and a rotating wheel (14), wherein the vibration skeleton (11) is fixed at the outer side of the mould (5), and the upper end of the vibration skeleton (11) is connected with the air inlet (12); the solenoid valve (13) is arranged on the air inlet (12); and the rotating wheel (14) is arranged in the vibration skeleton (11). The neodymium iron boron vibration magnetic field molding press device has the beneficial effects that the magnetic flocculation in the orientation process is reduced, the degree of orientation is improved, and the magnetic property is finally improved, so that the dispersity of powder is better, and the uniformity is better, and finally, the product density is more uniform, and the magnetic property is higher.

Description

technical field [0001] The invention relates to the field of forming NdFeB materials, in particular to an NdFeB vibrating magnetic field forming press device. Background technique [0002] In the existing NdFeB vibrating magnetic field forming press, during the NdFeB powder orientation pressing process, because the NdFeB powder is relatively fine, generally 3~5μm, the magnetic agglomeration is relatively severe. Therefore, when the magnetic field is applied, it will rotate with the easy axis. It is more difficult and the orientation is not complete, resulting in a decrease in the component of the magnetic field in the orientation direction and an increase in the component in the non-orientation direction. In this case, the problem is that the Br of the final NdFeB product is reduced, resulting in a decrease in magnetic properties. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a technical solution to fundamenta...

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Problems solved by technology

[0002] In the existing NdFeB vibrating magnetic field forming press, during the NdFeB powder orientation pressing process, because the NdFeB powder is relatively fine, generally 3~5μm, the magnetic agglomeration is relatively severe. Therefore, when the magnetic field is applied, it will rotate with the easy axis. It is more difficult and the orientation is not complete, resulting in a decrease in the component of the magnetic field in the orientation direction and an increase in the component in the non-orientation direction. In this case, the problem is that the Br of the final NdFeB product is reduced, resulting in a decrease in magnetic properties.

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