CN105112877A - Anti-corrosion method used for neodymium iron boron ferrite - Google Patents
Anti-corrosion method used for neodymium iron boron ferrite Download PDFInfo
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- CN105112877A CN105112877A CN201510567012.7A CN201510567012A CN105112877A CN 105112877 A CN105112877 A CN 105112877A CN 201510567012 A CN201510567012 A CN 201510567012A CN 105112877 A CN105112877 A CN 105112877A
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- iron boron
- neodymium iron
- boron ferrite
- ion implantation
- ferrite
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Abstract
The invention relates to an anti-corrosion method used for neodymium iron boron ferrite. The method comprises the steps that firstly, pretreatment is conducted, and the neodymium iron boron ferrite is subjected to oil removal, bright dipping, rinsing, excitation, re-rinsing and the like so as to guarantee that the outer surface of the neodymium iron boron ferrite is clean and smooth; secondly, an anti-corrosion material, namely zinc, is injected into the surface of the neodymium iron boron ferrite twice in an ion implantation mode, and then passivating treatment is conducted on the surface of the neodymium iron boron ferrite.
Description
Technical field
The invention belongs to the technical field of surface of magneticsubstance, refer to a kind of for Anticorrosion method for neodymium iron boron ferrite especially.
Background technology
Neodymium iron boron ferrite is as rare earth permanent-magnetic material, and have excellent magnetic property, good machining characteristics and the price of relative moderate, be 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, and under wet heat condition, serious chemical corrosion can occurs in environment for use, worsen magnetic property and affect work-ing life of magnet.
The main method of current solution neodymium iron boron ferrite etching problem deposits one deck corrosion-resistant coating in magnet surface, 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 defect, be exactly have a large amount of waste water to produce in process of production, and the harm of the intractability of this kind of waste water height is large.Use power consumption when electroplating large, be unfavorable for energy-conservation, do not meet environmental protection and power conservation requirement.
Summary of the invention
The object 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:
For Anticorrosion method for neodymium iron boron ferrite, its step is first pre-treatment, neodymium iron boron ferrite carried out oil removing, bright dipping, rinsing, activation, the process such as post rinse, clean and smooth to ensure the outside surface of neodymium iron boron ferrite;
Next adopts twice ion implantation mode to inject anticorrosion material zinc on neodymium iron boron ferrite surface; Wherein ion implantation energy is less than the ion implantation energy of second time for the first time;
Then Passivation Treatment is carried out on neodymium iron boron ferrite surface.
First time, ion implantation energy was 42-45KeV magnitude; The ion implantation energy of second time is 85-100KeV magnitude.
Described network layers thickness is altogether 15-40nm.
Described injection rate is 25mg/cm
2-40mg/cm
2.
Technical solution of the present invention beneficial effect is compared with the existing technology:
By present treatment technique, inner by surperficial body anticorrosive agent directly being penetrated into neodymium iron boron ferrite, preservative coat can not come off, add other protection against corrosion mode, significantly improve the corrosion resistance nature of neodymium iron boron ferrite, and little in production process environmental pollution, meet national energy-saving environmental requirement.
Embodiment
The following specifically describes embodiments of the present invention.
First the base substrate of neodymium iron boron ferrite is got, also the neodymium iron boron ferrite material of other model or shape can be chosen as required, pre-treatment is carried out to the base substrate of neodymium iron boron ferrite, neodymium iron boron ferrite is carried out oil removing, bright dipping, rinsing, activation, the process such as post rinse, clean and smooth to ensure the outside surface of neodymium iron boron ferrite.Described oil removing adopts the clean-out system of existing technology; Go out the dust technology process 50-200 second that optical processing employing concentration is 3-10%; Described activation treatment adopts the dilute sulphuric acid activation treatment 10-50 second of 2-10%.
Next adopts twice ion implantation mode to inject anticorrosion material zinc on neodymium iron boron ferrite surface; Then Passivation Treatment is carried out on neodymium iron boron ferrite surface.Wherein ion implantation energy is less than the ion implantation energy of second time for the first time; First time, ion implantation energy was 42-45KeV magnitude; The ion implantation energy of second time is 85-100KeV magnitude.Described penetrating layer thickness is 15-40nm.Described injection rate is 25mg/cm
2-40mg/cm
2.
Described ion implantation energy of the present invention; Selecting of concrete Implantation Energy is selected according to the purposes of material or the injection thickness determined, the thickness injecting amorphous substance is in the present invention 15-40nm, select the thickness that injects low when the environment of materials'use is severe or calling hierarchy is not high, the energy therefore injected is corresponding reduction also; When the bad environments of materials'use, the thickness of injection is thick, and the energy therefore injected is corresponding raising also.Implantation Energy used in the present invention, injection thickness and unit dose are not all quantitatively final, and just relative preferably data, can adjust according to actual needs, and injection thickness also may reach 75nm; Unit injects consumption also may reach 80mg/cm
2.But the minimum data required by this patent is master data, if lower than minimum data, Corrosion Protection cannot reach best.
Above specific embodiment only can as reference of the present invention instead of limitation of the present invention.
Claims (4)
1. for an Anticorrosion method for neodymium iron boron ferrite, it is characterized in that, its step comprises:
First be pre-treatment, neodymium iron boron ferrite carried out oil removing, bright dipping, rinsing, activation, the process such as post rinse, clean and smooth to ensure the outside surface of neodymium iron boron ferrite;
Next adopts twice ion implantation mode to inject anticorrosion material zinc on neodymium iron boron ferrite surface; Wherein ion implantation energy is less than the ion implantation energy of second time for the first time;
Then Passivation Treatment is carried out on neodymium iron boron ferrite surface.
2. according to claim 1 for Anticorrosion method for neodymium iron boron ferrite, it is characterized in that, first time, ion implantation energy was 42-45KeV magnitude; The ion implantation energy of second time is 85-100KeV magnitude.
3. according to claim 1 for Anticorrosion method for neodymium iron boron ferrite, it is characterized in that, described network layers thickness is altogether 15-40nm.
4. according to claim 1 for Anticorrosion method for neodymium iron boron ferrite, it is characterized in that, described injection rate is 25mg/cm
2-40mg/cm
2.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105112876A (en) * | 2015-09-08 | 2015-12-02 | 杨雯雯 | Corrosion control method for Nd-Fe-B ferrite |
| CN105441895A (en) * | 2015-11-03 | 2016-03-30 | 顾建 | Surface corrosion prevention method for NdFeB ferrite |
| CN106756860A (en) * | 2016-12-20 | 2017-05-31 | 薛亚红 | For Anticorrosion method for neodymium iron boron ferrite |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864428A (en) * | 2012-09-10 | 2013-01-09 | 任静儿 | Antisepsis method used for neodymium iron boron ferrite |
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2015
- 2015-09-08 CN CN201510567012.7A patent/CN105112877A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864428A (en) * | 2012-09-10 | 2013-01-09 | 任静儿 | Antisepsis method used for neodymium iron boron ferrite |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105112876A (en) * | 2015-09-08 | 2015-12-02 | 杨雯雯 | Corrosion control method for Nd-Fe-B ferrite |
| CN105441895A (en) * | 2015-11-03 | 2016-03-30 | 顾建 | Surface corrosion prevention method for NdFeB ferrite |
| CN106756860A (en) * | 2016-12-20 | 2017-05-31 | 薛亚红 | For Anticorrosion method for neodymium iron boron ferrite |
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