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Treatment method for corrosion resistance of neodymium iron boron ferrite

A treatment method, ferrite technology, applied in the direction of ion implantation plating, metal material coating process, coating, etc., can solve the problems of large power consumption, not conducive to energy saving, and does not meet the requirements of environmental protection and energy saving, and achieve environmental protection Less contamination and improved corrosion resistance

Inactive Publication Date: 2017-05-31
黄忠波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using electroplating, the power consumption is large, which is not conducive to energy saving, and does not meet the requirements of environmental protection and energy saving

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Embodiments of the present invention are specifically described below.

[0014] First, take the green body of NdFeB ferrite, and you can also choose other types or shapes of NdFeB ferrite materials according to the needs, and carry out pretreatment on the green body of NdFeB ferrite. The body is degreased, lighted, rinsed, activated, and then rinsed to ensure that the outer surface of the NdFeB ferrite is clean and smooth.

[0015] The second is to inject anti-corrosion material nickel boride into the surface of NdFeB ferrite by ion implantation; then form a metal oxide layer or coating or anti-corrosion layer on the surface of NdFeB ferrite.

[0016] The energy used for the ion implantation is on the order of 45-50KeV;

[0017] The thickness of the co-complex layer is 5-40nm.

[0018] The injection amount is 20mg / cm 2 -40mg / cm 2 .

[0019] The energy used for the ion implantation of the present invention is on the order of 45-50KeV; the specific implantation energ...

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PUM

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Abstract

The invention relates to a treatment method for corrosion resistance of neodymium iron boron ferrite. The treatment method comprises the following steps: firstly, the pretreatment is performed for the neodymium iron boron ferrite for deoiling, glaring, rinsing, activation, secondary rinsing and the like to guarantee cleanness and smoothness of the outer surface of the neodymium iron boron ferrite; then, a corrosion resisting material is injected in the surface of the neodymium iron boron ferrite by an ion injecting mode; and finally, a metal oxide layer or a plating layer or a corrosion resisting layer is formed on the surface of the neodymium iron boron ferrite.

Description

technical field [0001] The invention belongs to the technical field of surface treatment of magnetic materials, in particular to a treatment method for anticorrosion of NdFeB ferrite. Background technique [0002] As a rare earth permanent magnet material, NdFeB ferrite has excellent magnetic properties, good machining characteristics and relatively low price, and is widely used in automation, computers, home appliances, communications and other fields. However, NdFeB ferrite materials have poor chemical stability and are easy to oxidize in the use environment, and severe chemical corrosion will occur under hot and humid conditions, which will deteriorate the magnetic properties and affect the service life of the magnet. [0003] At present, the main method to solve the corrosion problem of NdFeB ferrite is to deposit an anti-corrosion layer on the surface of the magnet. The main treatment processes include surface treatment processes such as electroplating or chemical plati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/48C23C14/06
CPCC23C14/48C23C14/067
Inventor 黄忠波
Owner 黄忠波