CN102864430A - Antisepsis method used for neodymium iron boron ferrite surface - Google Patents
Antisepsis method used for neodymium iron boron ferrite surface Download PDFInfo
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- CN102864430A CN102864430A CN2012103343786A CN201210334378A CN102864430A CN 102864430 A CN102864430 A CN 102864430A CN 2012103343786 A CN2012103343786 A CN 2012103343786A CN 201210334378 A CN201210334378 A CN 201210334378A CN 102864430 A CN102864430 A CN 102864430A
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- iron boron
- neodymium iron
- boron ferrite
- ferrite surface
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Abstract
The invention relates to an antisepsis method used for a neodymium iron boron ferrite surface, which comprises the following steps of: firstly, carrying out pretreatment, such as oil removal, polishing, rinsing, activation and secondary rinsing to the neodymium iron boron ferrite to ensure that the outer surface of the neodymium iron boron ferrite is clean and smooth; secondly, injecting antisepsis material zinc into the neodymium iron boron ferrite surface in an ion injection way; and finally, carrying out passivating treatment on the neodymium iron boron ferrite surface.
Description
Technical field
The invention belongs to the technical field of surface of magneticsubstance, refer to especially a kind of for neodymium iron boron ferrite surface anticorrosion method.
Background technology
Neodymium iron boron ferrite has excellent magnetic property as rare earth permanent-magnetic material, and good mechanical workout characteristic and relative cheap price are widely used in fields such as automatization, computer, household electrical appliances, communications.But neodymium iron boron ferrite materials chemistry poor stability is easy to oxidation in environment for use, and under wet heat condition serious chemical corrosion can occur, and worsens magnetic property and affects work-ing life of magnet.
The main method that solves at present the neodymium iron boron ferrite etching problem is at magnet surface deposition one deck corrosion-resistant coating, main treatment process has the process of surface treatment such as electrochemical plating or electroless plating, but these two kinds of techniques all have obvious defective, be exactly to have in process of production a large amount of waste water to produce, and the high harm of the intractability of this class waste water is large.Power consumption is large when use electroplating, and is unfavorable for energy-conservationly, does not meet environmental protection and energy-conservation requirement.
Summary of the invention
The purpose of this invention is to provide the antiseptic novel method of a kind of new neodymium iron boron ferrite, the method does not have a large amount of sewage to produce in process of production, and it is little to compare power consumption with plating.
The present invention is achieved by the following technical solutions:
Be used for neodymium iron boron ferrite surface anticorrosion method, its step is at first to be pre-treatment, and neodymium iron boron ferrite is carried out oil removing, polishing, and rinsing, activation, the processing such as post rinse are with the outside surface cleaning that guarantees neodymium iron boron ferrite and smooth;
Next is to adopt ion implantation mode to inject anticorrosion material zinc on the neodymium iron boron ferrite surface; Then carry out Passivation Treatment on the neodymium iron boron ferrite surface.
Described ion implantation be the 50-70KeV magnitude with energy;
Described altogether network layer thickness is 15-40nm.
Described injection rate is 45mg/cm
2-55mg/cm
2
The beneficial effect that technical solution of the present invention is compared with prior art is:
By this treatment process, inner by the surperficial body that anticorrosive agent is directly penetrated into neodymium iron boron ferrite, preservative coat can not come off, add other protection against corrosion mode, obviously improve the corrosion resistance nature of neodymium iron boron ferrite, and little in the production process environmental pollution, meet the national energy-saving environmental requirement.
Embodiment
The following specifically describes embodiments of the present invention.
At first get the base substrate of neodymium iron boron ferrite, also can choose as required the neodymium iron boron ferrite material of other model or shape, base substrate to neodymium iron boron ferrite carries out pre-treatment, neodymium iron boron ferrite is carried out oil removing, polishing, rinsing, activation, the processing such as post rinse are with the outside surface cleaning that guarantees neodymium iron boron ferrite and smooth.The clean-out system of existing technology is adopted in described oil removing; Going out optical processing, to adopt concentration be the rare nitric acid treatment 50-200 second of 3-10%; Described activation treatment adopts the dilute sulphuric acid activation treatment 10-50 second of 2-10%.
Next is to adopt ion implantation mode to inject anticorrosion material zinc on the neodymium iron boron ferrite surface; Then carry out Passivation Treatment on the neodymium iron boron ferrite surface.Described ion implantation be the 50-70KeV magnitude with energy; Described penetrating layer thickness is 15-40nm.Described injection rate is 45mg/cm
2-55mg/cm
2
Of the present invention described ion implantation be the 50-70KeV magnitude with energy; Concrete selecting of Implantation Energy is to select according to the purposes of material or definite injection thickness, the thickness that injects in the present invention amorphous substance is 15-40nm, select the thickness that injects low when abominable or calling hierarchy is not high when the environment of materials'use, the also corresponding reduction of energy of therefore injecting usefulness; Abominable when the environment of materials'use, the thickness of injection is thick, the also corresponding raising of energy of therefore injecting.Employed Implantation Energy, injection thickness and unit consumption all are not quantitatively final in the present invention, and just relatively good data can be adjusted according to actual needs, may reach 100KeV magnitude or even 120KeV magnitude such as Implantation Energy; Inject thickness and also may reach 75nm; Unit injects consumption also may reach 80mg/cm
2But the desired minimum data of this patent is master data, if be lower than minimum data then Corrosion Protection can't reach best.
Above specific embodiment only can be as reference of the present invention rather than limitation of the present invention.
Claims (4)
1. be used for neodymium iron boron ferrite surface anticorrosion method, it is characterized in that its step comprises:
At first be pre-treatment, neodymium iron boron ferrite is carried out oil removing, polishing, rinsing, activation, the processing such as post rinse are with the outside surface cleaning that guarantees neodymium iron boron ferrite and smooth;
Next is to adopt ion implantation mode to inject anticorrosion material zinc on the neodymium iron boron ferrite surface;
Then carry out Passivation Treatment on the neodymium iron boron ferrite surface.
2. according to claim 1ly it is characterized in that for neodymium iron boron ferrite surface anticorrosion method, described ion implantation be the 50-70KeV magnitude with energy.
3. according to claim 1ly it is characterized in that for neodymium iron boron ferrite surface anticorrosion method that described altogether network layer thickness is 15-40nm.
4. according to claim 1ly it is characterized in that for neodymium iron boron ferrite surface anticorrosion method described injection rate is 45mg/cm
2-55mg/cm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012103343786A CN102864430A (en) | 2012-09-10 | 2012-09-10 | Antisepsis method used for neodymium iron boron ferrite surface |
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| CN2012103343786A CN102864430A (en) | 2012-09-10 | 2012-09-10 | Antisepsis method used for neodymium iron boron ferrite surface |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864431A (en) * | 2012-09-10 | 2013-01-09 | 顾建 | Anticorrosion method for neodymium iron boron ferrite |
| CN104404469A (en) * | 2014-11-21 | 2015-03-11 | 青岛麦特瑞欧新材料技术有限公司 | Method for improving corrosion resistance of neodymium iron boron ferrite |
| CN105441895A (en) * | 2015-11-03 | 2016-03-30 | 顾建 | Surface corrosion prevention method for NdFeB ferrite |
| CN106756859A (en) * | 2016-11-23 | 2017-05-31 | 俞虹 | For neodymium iron boron ferrite surface anticorrosion method |
| EP4002017A1 (en) * | 2020-11-13 | 2022-05-25 | Comadur S.A. | Anti-corrosion protection for timepiece magnets, in particular neodymium-iron-boron |
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| CN101403093A (en) * | 2008-09-10 | 2009-04-08 | 兰州大成自动化工程有限公司 | Method of manufacturing vacuum composite film coating on surface of neodymium iron boron magnet |
| CN102191464A (en) * | 2010-03-08 | 2011-09-21 | 北京中科三环高技术股份有限公司 | Anticorrosion coating for neodymium-iron-boron rare earth permanent magnet and manufacturing method thereof |
| CN102864428A (en) * | 2012-09-10 | 2013-01-09 | 任静儿 | Antisepsis method used for neodymium iron boron ferrite |
| CN102864431A (en) * | 2012-09-10 | 2013-01-09 | 顾建 | Anticorrosion method for neodymium iron boron ferrite |
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2012
- 2012-09-10 CN CN2012103343786A patent/CN102864430A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101403093A (en) * | 2008-09-10 | 2009-04-08 | 兰州大成自动化工程有限公司 | Method of manufacturing vacuum composite film coating on surface of neodymium iron boron magnet |
| CN102191464A (en) * | 2010-03-08 | 2011-09-21 | 北京中科三环高技术股份有限公司 | Anticorrosion coating for neodymium-iron-boron rare earth permanent magnet and manufacturing method thereof |
| CN102864428A (en) * | 2012-09-10 | 2013-01-09 | 任静儿 | Antisepsis method used for neodymium iron boron ferrite |
| CN102864431A (en) * | 2012-09-10 | 2013-01-09 | 顾建 | Anticorrosion method for neodymium iron boron ferrite |
Non-Patent Citations (1)
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| 张守民 等: "NdFeB磁体防腐蚀研究", 《材料保护》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864431A (en) * | 2012-09-10 | 2013-01-09 | 顾建 | Anticorrosion method for neodymium iron boron ferrite |
| CN104404469A (en) * | 2014-11-21 | 2015-03-11 | 青岛麦特瑞欧新材料技术有限公司 | Method for improving corrosion resistance of neodymium iron boron ferrite |
| CN105441895A (en) * | 2015-11-03 | 2016-03-30 | 顾建 | Surface corrosion prevention method for NdFeB ferrite |
| CN106756859A (en) * | 2016-11-23 | 2017-05-31 | 俞虹 | For neodymium iron boron ferrite surface anticorrosion method |
| EP4002017A1 (en) * | 2020-11-13 | 2022-05-25 | Comadur S.A. | Anti-corrosion protection for timepiece magnets, in particular neodymium-iron-boron |
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Application publication date: 20130109 |