CN106653345B - A kind of method for improving Agglutinate neodymium-iron-boron magnet performance - Google Patents

A kind of method for improving Agglutinate neodymium-iron-boron magnet performance Download PDF

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CN106653345B
CN106653345B CN201611030387.0A CN201611030387A CN106653345B CN 106653345 B CN106653345 B CN 106653345B CN 201611030387 A CN201611030387 A CN 201611030387A CN 106653345 B CN106653345 B CN 106653345B
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iron
boron magnet
agglutinate neodymium
neodymium
agglutinate
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CN106653345A (en
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邓颖华
张维山
陈海龙
赵春伟
王江
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NINGBO YUNSHENG BONDED MAGNET CO Ltd
Ningbo Yunsheng Co Ltd
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NINGBO YUNSHENG BONDED MAGNET CO Ltd
Ningbo Yunsheng Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/026—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets protecting methods against environmental influences, e.g. oxygen, by surface treatment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0572—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes with a protective layer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0578—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together bonded together
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

The invention discloses a kind of method for improving Agglutinate neodymium-iron-boron magnet performance, comprise the following steps：Pre-treatment first, infiltration processing, whirl coating processing, cleaning treatment, immersion treatment, drying or spin-drying, drying and processing, pre-treatment, electrophoretic process or japanning handle and by first levelling 10 30 minutes under the conditions of temperature is 70 DEG C 90 DEG C of the Agglutinate neodymium-iron-boron magnet after electrophoretic process or japanning processing again, then are toasted 10 40 minutes under the conditions of being 100 200 DEG C in temperature；Advantage is sealing glue is penetrated at the hole of Agglutinate neodymium-iron-boron magnet in Agglutinate neodymium-iron-boron magnet by Infiltration Technics, by the pore closure of Agglutinate neodymium-iron-boron magnet, then overcoat is formed on Agglutinate neodymium-iron-boron magnet by electrophoresis or japanning, Agglutinate neodymium-iron-boron magnet has higher antiseptic property and solvent resistance, experiment proves that, its solvent resistant ability up to more than 30 days, neutral salt spray test can be up to more than 24 hours, high-temp resisting high-humidity resisting (85 DEG C, 85%RH) more than 240 hours.

Description

A kind of method for improving Agglutinate neodymium-iron-boron magnet performance
Technical field
The present invention relates to a kind of Agglutinate neodymium-iron-boron magnet process for treating surface, and Agglutinate neodymium-iron-boron is improved more particularly, to one kind The method of magnet performance.
Background technology
Agglutinate neodymium-iron-boron magnet has excellent magnetic property and very high cost performance, is widely used in electronics, automobile, electricity The technical field such as machine and communication.But Agglutinate neodymium-iron-boron magnet has following defect：First, the property of Agglutinate neodymium-iron-boron magnet is non- It is often active, it is easy to react and be corroded with air, so as to cause Agglutinate neodymium-iron-boron magnet to expand, get rusty, magnetic decline Even lose magnetism；2nd, the density ratio steel of Agglutinate neodymium-iron-boron magnet is much lower, and porosity is very high, and hole aperture is also compared Greatly, in use, alcohol and machine oil equal solvent are easy to penetrate into it at its hole, because Agglutinate neodymium-iron-boron magnet is NdFeB magnetic powder is bonded together into using bonding agent, after solvent enters Agglutinate neodymium-iron-boron magnet inside, bonds neodymium The bonding agent contained in iron boron magnet will be softened, so as to cause Agglutinate neodymium-iron-boron magnet softening even efflorescence, intensity decreases And damage.
The defects of above-mentioned Agglutinate neodymium-iron-boron magnet, significantly limit the service life and application neck of Agglutinate neodymium-iron-boron magnet Domain.In order to improve the service life of Agglutinate neodymium-iron-boron magnet, its application field is extended, research direction main at present is how to carry High its Corrosion Protection and solvent resistance.The existing method for improving Agglutinate neodymium-iron-boron magnet performance mainly has two kinds, and first Kind method is to form overcoat on its surface by carrying out application processing (including plating, electrophoresis and spraying etc.) to its surface, is prevented Sheath is by Agglutinate neodymium-iron-boron magnet and air insulated；Second method is that fluid sealant water penetration is entered into cohesive neodymium by infiltration process Hole is closed in the hole of iron boron magnet.The main purpose of first method is by Agglutinate neodymium-iron-boron magnetic by overcoat Body is isolated with air, prevents Agglutinate neodymium-iron-boron magnet from directly contacting to react with air to be corroded, so as to improve bonding The antiseptic property of neodymium iron boron magnetic body, still, Agglutinate neodymium-iron-boron magnet after this method processing, inevitably also deposit in its overcoat In hole, solvent still can be entered inside Agglutinate neodymium-iron-boron magnet by overcoat, and thus first method is only capable of improving and bonded The antiseptic property of neodymium iron boron magnetic body, its solvent resistance can not be improved.The main purpose of second method is to pass through fluid sealant The hole of water seal Agglutinate neodymium-iron-boron magnet and avoid solvent enter Agglutinate neodymium-iron-boron magnet inside, so as to improve Agglutinate neodymium-iron-boron The solvent resistance of magnet；But the Agglutinate neodymium-iron-boron magnet after this method processing is still exposed in air, thus second Method is only capable of improving the solvent resistance of Agglutinate neodymium-iron-boron magnet, can not improve its antiseptic property.
In view of this, a kind of method for improving Agglutinate neodymium-iron-boron magnet performance is designed to improve its antiseptic property and solvent resistant simultaneously Performance is significant.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of method for improving Agglutinate neodymium-iron-boron magnet performance, this method Agglutinate neodymium-iron-boron magnet after processing has higher antiseptic property and solvent resistance.
Technical scheme is used by the present invention solves above-mentioned technical problem：A kind of raising Agglutinate neodymium-iron-boron magnet performance Method, comprise the following steps：
1. pending Agglutinate neodymium-iron-boron magnet is subjected to pre-treatment first；
2. infiltration processing is carried out to the Agglutinate neodymium-iron-boron magnet after pre-treatment first；
3. whirl coating：Agglutinate neodymium-iron-boron magnet after infiltration is handled is laid in whirl coating motor spindle, starts photoresist spinner and is got rid of Glue processing, the time is 1-5 minutes；
4. clean：Agglutinate neodymium-iron-boron magnet after whirl coating is handled is cleaned at least twice；
5. the Agglutinate neodymium-iron-boron magnet after cleaning is put into the water that temperature is 50-80 DEG C and soaks 1-5 minutes；
6. the Agglutinate neodymium-iron-boron magnet after immersion is dried up or dried；
7. dry：The Agglutinate neodymium-iron-boron magnet for drying up or drying is lain on the web plate for be equipped with absorbent gauze and is put into baking In dry machine, 30-60 minutes are toasted under the conditions of being 100 DEG C -130 DEG C in temperature；
8. the Agglutinate neodymium-iron-boron magnet of drying is subjected to pre-treatment again；
9. the Agglutinate neodymium-iron-boron magnet after pre-treatment again is subjected to electrophoretic process or japanning is handled, Agglutinate neodymium-iron-boron magnet Surface forms overcoat, and the thickness of overcoat is 10-35um；
10. levelling under the conditions of being first 70 DEG C -90 DEG C in temperature by the Agglutinate neodymium-iron-boron magnet after electrophoretic process or japanning processing 10-30 minutes, then toast 10-40 minutes under the conditions of being 100-200 DEG C in temperature.
The detailed process of described pre-treatment first is：
A. Agglutinate neodymium-iron-boron magnet is put into the degreasant solution that pH value is 9~11 and carries out ungrease treatment, described degreasing Solution is mixed by sodium carbonate, sodium tripolyphosphate, dodecyl sodium sulfate and water, wherein the mass percent concentration of sodium carbonate For 15-20%, the mass percent concentration of sodium tripolyphosphate is 10-15%, the mass percent concentration of dodecyl sodium sulfate For 10-15%；
B. first time ultrasonic wave water washing：Agglutinate neodymium-iron-boron magnet after ungrease treatment is subjected to first time ultrasonic wave water washing；
C. derust：Agglutinate neodymium-iron-boron magnet after first time ultrasonic wave water washing is put into the deruster that pH value is 2~7 Processing of rust removing is carried out, deruster is mixed by rust remover and water, and the concentration of volume percent of rust remover is 1-3%；
D. second of ultrasonic wave water washing：Agglutinate neodymium-iron-boron magnet after derusting is subjected to second of ultrasonic wave water washing；
E. table is adjusted：Agglutinate neodymium-iron-boron magnet after second of ultrasonic wave water washing is put into the table that pH value is 9~11 and adjusts solution Middle carry out table mediates reason, and table is adjusted solution to be adjusted by table and mixed with water, and the mass percent concentration that table is adjusted is 0.1- 0.4%；
F. high temperature phosphatization：Agglutinate neodymium-iron-boron magnet after table is adjusted is put into the phosphating solution that pH value is 2~4 in progress High temperature phosphorization processing, the temperature of phosphating solution is 60~80 DEG C, and phosphating time is 10~30 minutes；
G. high temperature pure water is washed：Agglutinate neodymium-iron-boron magnet after high temperature phosphatization is cleaned using high temperature pure water, High temperature pure water temperature is 60~90 DEG C, and washing time is 30~120 seconds, high temperature pure water conductance≤50us/cm；
H. it is passivated：Agglutinate neodymium-iron-boron magnet after high temperature pure water is washed is passivated processing；
E. normal temperature pure water is washed：Agglutinate neodymium-iron-boron magnet after passivation is cleaned using normal temperature pure water；
F. dry：The Agglutinate neodymium-iron-boron magnet that normal temperature pure water is washed dries or drying；
J. dry：Dried Agglutinate neodymium-iron-boron magnet is dried；
The detailed process of described pre-treatment again is identical with described pre-treatment first.First successively to viscous in this method Tie neodymium iron boron magnetic body and carry out degreasing, first time ultrasonic wave water washing, derusting and second of ultrasonic wave water washing, by Agglutinate neodymium-iron-boron magnet The grease and rust stain on surface clean up, and then reconcile high temperature phosphating process in Agglutinate neodymium-iron-boron magnet surface shape by table Into phosphate coating, phosphate coating surface acidity phosphating solution is thoroughly cleaned, phosphate coating is maintained at neutral state, finally by Passivation, normal temperature pure water are washed, the stable phosphate coating of dry and drying and processing solidification, are beaten for follow-up Infiltration Technics and process of surface treatment Good basis down, ensure follow-up Infiltration Technics and the effect of process of surface treatment.
The detailed process of described infiltration processing is：
2. -1 pours into infiltration glue in vacuum impregnation tank, impregnating adhesive coolant-temperature gage is maintained at less than 20 DEG C；
2. -2 by the Agglutinate neodymium-iron-boron magnet after pre-treatment first, vacuum impregnation tank is put into after being fitted into mesh bag or basket In, the liquid level for infiltrating glue is higher than Agglutinate neodymium-iron-boron magnet at least 15mm；
2. -3 use lid to be vacuumized after vacuum impregnation tank is closed using vavuum pump to vacuum impregnation tank, vacuumizing In journey in Real Time Observation vacuum impregnation tank foam height, if foam exceedes vacuum orifice, now close vavuum pump, treat under foam Vavuum pump is then turned on after being down to below the vacuum orifice of vacuum impregnation tank to vacuumize, is gone round and begun again, until vacuum impregnation tank internal pressure Power vacuumizes to stopping after below -0.098MPa, pressurize 10 minutes；
2. -4 pairs of vacuum impregnation tank releases, its interior pressure is opened lid after recovering normal pressure, by Agglutinate neodymium-iron-boron magnet from Taken out in vacuum impregnation tank.In this method, infiltrated using infiltration glue of the temperature below 20 DEG C, and infiltrate the liquid of glue Face is highly higher than Agglutinate neodymium-iron-boron magnet at least 15mm, using vavuum pump to vacuum after first vacuum impregnation tank is closed using lid Infiltration jar vacuumizes, in vacuum in Real Time Observation vacuum impregnation tank foam height, if foam exceedes vacuum orifice, Now close vavuum pump, being then turned on vavuum pump after foam is dropped to below the vacuum orifice of vacuum impregnation tank vacuumizes, week and Renew, until vacuum infiltration pressure inside the tank vacuumizes to stopping after below -0.098MPa, pressurize 10 minutes, then to Vaccum Permeating Tank release is oozed, its interior pressure is opened lid after recovering normal pressure, in stress-relief process, infiltrates glue from Agglutinate neodymium-iron-boron magnet The inside of Agglutinate neodymium-iron-boron magnet is penetrated into hole and phosphate coating, thus the pore closure of Agglutinate neodymium-iron-boron magnet avoids molten Agent enters softening or efflorescence Agglutinate neodymium-iron-boron magnet in Agglutinate neodymium-iron-boron magnet, ensures the intensity of Agglutinate neodymium-iron-boron magnet.
Described step 4. in cleaning process be：Agglutinate neodymium-iron-boron magnet is put into the water with degumming cleaning agent, Persistently being stirred using compressed air makes Agglutinate neodymium-iron-boron magnet ceaselessly stir, and the time is the 15-60 seconds.Using compression in this method Air persistently stirs, and on the basis of ensureing not damage Agglutinate neodymium-iron-boron magnet, makes Agglutinate neodymium-iron-boron magnet cleaning thorough.
Described degumming cleaning agent is liquid soap, degreasing agent or cleaning agent.
Compared with prior art, the advantage of the invention is that by by Infiltration Technics and process of surface treatment (electrophoresis or painting Paint) it is combined together, sealing glue is penetrated at the hole of Agglutinate neodymium-iron-boron magnet by Infiltration Technics first and bond neodymium iron In boron magnet, by the pore closure of Agglutinate neodymium-iron-boron magnet, then again by process of surface treatment (electrophoresis or japanning) in bonding Overcoat is formed on neodymium iron boron magnetic body, thus the Agglutinate neodymium-iron-boron magnet after method of the invention processing has higher anti-corrosive properties Can and solvent resistance, experiment proves that, its solvent resistant ability up to more than 30 days, neutral salt spray test can up to more than 24 hours, High-temp resisting high-humidity resisting (85 DEG C, 85%RH) more than 240 hours.
Embodiment
The present invention is described in further detail with reference to embodiments.
Embodiment one：A kind of method for improving Agglutinate neodymium-iron-boron magnet performance, comprises the following steps：
1. pending Agglutinate neodymium-iron-boron magnet is subjected to pre-treatment first；
2. infiltration processing is carried out to the Agglutinate neodymium-iron-boron magnet after pre-treatment first；
3. whirl coating：Agglutinate neodymium-iron-boron magnet after infiltration is handled is laid in whirl coating motor spindle, starts photoresist spinner and is got rid of Glue processing, the time is 1-5 minutes；
4. clean：Agglutinate neodymium-iron-boron magnet after whirl coating is handled is cleaned at least twice；
5. the Agglutinate neodymium-iron-boron magnet after cleaning is put into the water that temperature is 50-80 DEG C and soaks 1-5 minutes；
6. the Agglutinate neodymium-iron-boron magnet after immersion is dried up or dried；
7. dry：The Agglutinate neodymium-iron-boron magnet for drying up or drying is lain on the web plate for be equipped with absorbent gauze and is put into baking In dry machine, 30-60 minutes are toasted under the conditions of being 100 DEG C -130 DEG C in temperature；
8. the Agglutinate neodymium-iron-boron magnet of drying is subjected to pre-treatment again；
9. the Agglutinate neodymium-iron-boron magnet after pre-treatment again is subjected to electrophoretic process or japanning is handled, Agglutinate neodymium-iron-boron magnet Surface forms overcoat, and the thickness of overcoat is 10-35um；
10. levelling under the conditions of being first 70 DEG C -90 DEG C in temperature by the Agglutinate neodymium-iron-boron magnet after electrophoretic process or japanning processing 10-30 minutes, then toast 10-40 minutes under the conditions of being 100-200 DEG C in temperature.
In the present embodiment, the detailed process of pre-treatment first is：
A. Agglutinate neodymium-iron-boron magnet is put into the degreasant solution that pH value is 9~11 and carries out ungrease treatment, degreasant solution by Sodium carbonate, sodium tripolyphosphate, dodecyl sodium sulfate and water mix, and wherein the mass percent concentration of sodium carbonate is 15- 20%, the mass percent concentration of sodium tripolyphosphate is 10-15%, and the mass percent concentration of dodecyl sodium sulfate is 10- 15%；
B. first time ultrasonic wave water washing：Agglutinate neodymium-iron-boron magnet after ungrease treatment is subjected to first time ultrasonic wave water washing；
C. derust：Agglutinate neodymium-iron-boron magnet after first time ultrasonic wave water washing is put into the deruster that pH value is 2~7 Processing of rust removing is carried out, deruster is mixed by rust remover and water, and the concentration of volume percent of rust remover is 1-3%；
D. second of ultrasonic wave water washing：Agglutinate neodymium-iron-boron magnet after derusting is subjected to second of ultrasonic wave water washing；
E. table is adjusted：Agglutinate neodymium-iron-boron magnet after second of ultrasonic wave water washing is put into the table that pH value is 9~11 and adjusts solution Middle carry out table mediates reason, and table is adjusted solution to be adjusted by table and mixed with water, and the mass percent concentration that table is adjusted is 0.1- 0.4%；
F. high temperature phosphatization：Agglutinate neodymium-iron-boron magnet after table is adjusted is put into the phosphating solution that pH value is 2~4 in progress High temperature phosphorization processing, the temperature of phosphating solution is 60~80 DEG C, and phosphating time is 10~30 minutes；
G. high temperature pure water is washed：Agglutinate neodymium-iron-boron magnet after high temperature phosphatization is cleaned using high temperature pure water, High temperature pure water temperature is 60~90 DEG C, and washing time is 30~120 seconds, high temperature pure water conductance≤50us/cm；
H. it is passivated：Agglutinate neodymium-iron-boron magnet after high temperature pure water is washed is passivated processing；
E. normal temperature pure water is washed：Agglutinate neodymium-iron-boron magnet after passivation is cleaned using normal temperature pure water；
F. dry：The Agglutinate neodymium-iron-boron magnet that normal temperature pure water is washed dries or drying；
J. dry：Dried Agglutinate neodymium-iron-boron magnet is dried；
The detailed process of pre-treatment is identical with pre-treatment first again.
In the present embodiment, the detailed process for infiltrating processing is：
2. -1 pours into infiltration glue in vacuum impregnation tank, impregnating adhesive coolant-temperature gage is maintained at less than 20 DEG C；
2. -2 by the Agglutinate neodymium-iron-boron magnet after pre-treatment first, vacuum impregnation tank is put into after being fitted into mesh bag or basket In, the liquid level for infiltrating glue is higher than Agglutinate neodymium-iron-boron magnet at least 15mm；
2. -3 use lid to be vacuumized after vacuum impregnation tank is closed using vavuum pump to vacuum impregnation tank, vacuumizing In journey in Real Time Observation vacuum impregnation tank foam height, if foam exceedes vacuum orifice, now close vavuum pump, treat under foam Vavuum pump is then turned on after being down to below the vacuum orifice of vacuum impregnation tank to vacuumize, is gone round and begun again, until vacuum impregnation tank internal pressure Power vacuumizes to stopping after below -0.098MPa, pressurize 10 minutes；
2. -4 pairs of vacuum impregnation tank releases, its interior pressure is opened lid after recovering normal pressure, by Agglutinate neodymium-iron-boron magnet from Taken out in vacuum impregnation tank.
In the present embodiment, step 4. in cleaning process be：Agglutinate neodymium-iron-boron magnet is put into degumming cleaning agent In water, persistently being stirred using compressed air makes Agglutinate neodymium-iron-boron magnet ceaselessly stir, and the time is the 15-60 seconds.
In the present embodiment, degumming cleaning agent is liquid soap.
Embodiment two：A kind of method for improving Agglutinate neodymium-iron-boron magnet performance, comprises the following steps：
1. pending Agglutinate neodymium-iron-boron magnet is subjected to pre-treatment first；
2. infiltration processing is carried out to the Agglutinate neodymium-iron-boron magnet after pre-treatment first；
3. whirl coating：Agglutinate neodymium-iron-boron magnet after infiltration is handled is laid in whirl coating motor spindle, starts photoresist spinner and is got rid of Glue processing, the time is 1-5 minutes；
4. clean：Agglutinate neodymium-iron-boron magnet after whirl coating is handled is cleaned at least twice；
5. the Agglutinate neodymium-iron-boron magnet after cleaning is put into the water that temperature is 50-80 DEG C and soaks 1-5 minutes；
6. the Agglutinate neodymium-iron-boron magnet after immersion is dried up or dried；
7. dry：The Agglutinate neodymium-iron-boron magnet for drying up or drying is lain on the web plate for be equipped with absorbent gauze and is put into baking In dry machine, 30-60 minutes are toasted under the conditions of being 100 DEG C -130 DEG C in temperature；
8. the Agglutinate neodymium-iron-boron magnet of drying is subjected to pre-treatment again；
9. the Agglutinate neodymium-iron-boron magnet after pre-treatment again is subjected to electrophoretic process or japanning is handled, Agglutinate neodymium-iron-boron magnet Surface forms overcoat, and the thickness of overcoat is 10-35um；
10. levelling under the conditions of being first 70 DEG C -90 DEG C in temperature by the Agglutinate neodymium-iron-boron magnet after electrophoretic process or japanning processing 10-30 minutes, then toast 10-40 minutes under the conditions of being 100-200 DEG C in temperature.
In the present embodiment, the detailed process of pre-treatment first is：
A. Agglutinate neodymium-iron-boron magnet is put into the degreasant solution that pH value is 9~11 and carries out ungrease treatment, degreasant solution by Sodium carbonate, sodium tripolyphosphate, dodecyl sodium sulfate and water mix, and wherein the mass percent concentration of sodium carbonate is 15- 20%, the mass percent concentration of sodium tripolyphosphate is 10-15%, and the mass percent concentration of dodecyl sodium sulfate is 10- 15%；
B. first time ultrasonic wave water washing：Agglutinate neodymium-iron-boron magnet after ungrease treatment is subjected to first time ultrasonic wave water washing；
C. derust：Agglutinate neodymium-iron-boron magnet after first time ultrasonic wave water washing is put into the deruster that pH value is 2~7 Processing of rust removing is carried out, deruster is mixed by rust remover and water, and the concentration of volume percent of rust remover is 1-3%；
D. second of ultrasonic wave water washing：Agglutinate neodymium-iron-boron magnet after derusting is subjected to second of ultrasonic wave water washing；
E. table is adjusted：Agglutinate neodymium-iron-boron magnet after second of ultrasonic wave water washing is put into the table that pH value is 9~11 and adjusts solution Middle carry out table mediates reason, and table is adjusted solution to be adjusted by table and mixed with water, and the mass percent concentration that table is adjusted is 0.1- 0.4%；
F. high temperature phosphatization：Agglutinate neodymium-iron-boron magnet after table is adjusted is put into the phosphating solution that pH value is 2~4 in progress High temperature phosphorization processing, the temperature of phosphating solution is 60~80 DEG C, and phosphating time is 10~30 minutes；
G. high temperature pure water is washed：Agglutinate neodymium-iron-boron magnet after high temperature phosphatization is cleaned using high temperature pure water, High temperature pure water temperature is 60~90 DEG C, and washing time is 30~120 seconds, high temperature pure water conductance≤50us/cm；
H. it is passivated：Agglutinate neodymium-iron-boron magnet after high temperature pure water is washed is passivated processing；
E. normal temperature pure water is washed：Agglutinate neodymium-iron-boron magnet after passivation is cleaned using normal temperature pure water；
F. dry：The Agglutinate neodymium-iron-boron magnet that normal temperature pure water is washed dries or drying；
J. dry：Dried Agglutinate neodymium-iron-boron magnet is dried；
The detailed process of pre-treatment is identical with pre-treatment first again.
In the present embodiment, the detailed process for infiltrating processing is：
2. -1 pours into infiltration glue in vacuum impregnation tank, impregnating adhesive coolant-temperature gage is maintained at less than 20 DEG C；
2. -2 by the Agglutinate neodymium-iron-boron magnet after pre-treatment first, vacuum impregnation tank is put into after being fitted into mesh bag or basket In, the liquid level for infiltrating glue is higher than Agglutinate neodymium-iron-boron magnet at least 15mm；
2. -3 use lid to be vacuumized after vacuum impregnation tank is closed using vavuum pump to vacuum impregnation tank, vacuumizing In journey in Real Time Observation vacuum impregnation tank foam height, if foam exceedes vacuum orifice, now close vavuum pump, treat under foam Vavuum pump is then turned on after being down to below the vacuum orifice of vacuum impregnation tank to vacuumize, is gone round and begun again, until vacuum impregnation tank internal pressure Power vacuumizes to stopping after below -0.098MPa, pressurize 10 minutes；
2. -4 pairs of vacuum impregnation tank releases, its interior pressure is opened lid after recovering normal pressure, by Agglutinate neodymium-iron-boron magnet from Taken out in vacuum impregnation tank.
In the present embodiment, step 4. in cleaning process be：Agglutinate neodymium-iron-boron magnet is put into degumming cleaning agent In water, persistently being stirred using compressed air makes Agglutinate neodymium-iron-boron magnet ceaselessly stir, and the time is the 15-60 seconds.
In the present embodiment, degumming cleaning agent is degreasing agent.
Embodiment three：A kind of method for improving Agglutinate neodymium-iron-boron magnet performance, comprises the following steps：
1. pending Agglutinate neodymium-iron-boron magnet is subjected to pre-treatment first；
2. infiltration processing is carried out to the Agglutinate neodymium-iron-boron magnet after pre-treatment first；
3. whirl coating：Agglutinate neodymium-iron-boron magnet after infiltration is handled is laid in whirl coating motor spindle, starts photoresist spinner and is got rid of Glue processing, the time is 1-5 minutes；
4. clean：Agglutinate neodymium-iron-boron magnet after whirl coating is handled is cleaned at least twice；
5. the Agglutinate neodymium-iron-boron magnet after cleaning is put into the water that temperature is 50-80 DEG C and soaks 1-5 minutes；
6. the Agglutinate neodymium-iron-boron magnet after immersion is dried up or dried；
7. dry：The Agglutinate neodymium-iron-boron magnet for drying up or drying is lain on the web plate for be equipped with absorbent gauze and is put into baking In dry machine, 30-60 minutes are toasted under the conditions of being 100 DEG C -130 DEG C in temperature；
8. the Agglutinate neodymium-iron-boron magnet of drying is subjected to pre-treatment again；
9. the Agglutinate neodymium-iron-boron magnet after pre-treatment again is subjected to electrophoretic process or japanning is handled, Agglutinate neodymium-iron-boron magnet Surface forms overcoat, and the thickness of overcoat is 10-35um；
10. levelling under the conditions of being first 70 DEG C -90 DEG C in temperature by the Agglutinate neodymium-iron-boron magnet after electrophoretic process or japanning processing 10-30 minutes, then toast 10-40 minutes under the conditions of being 100-200 DEG C in temperature.
In the present embodiment, the detailed process of pre-treatment first is：
A. Agglutinate neodymium-iron-boron magnet is put into the degreasant solution that pH value is 9~11 and carries out ungrease treatment, degreasant solution by Sodium carbonate, sodium tripolyphosphate, dodecyl sodium sulfate and water mix, and wherein the mass percent concentration of sodium carbonate is 15- 20%, the mass percent concentration of sodium tripolyphosphate is 10-15%, and the mass percent concentration of dodecyl sodium sulfate is 10- 15%；
B. first time ultrasonic wave water washing：Agglutinate neodymium-iron-boron magnet after ungrease treatment is subjected to first time ultrasonic wave water washing；
C. derust：Agglutinate neodymium-iron-boron magnet after first time ultrasonic wave water washing is put into the deruster that pH value is 2~7 Processing of rust removing is carried out, deruster is mixed by rust remover and water, and the concentration of volume percent of rust remover is 1-3%；
D. second of ultrasonic wave water washing：Agglutinate neodymium-iron-boron magnet after derusting is subjected to second of ultrasonic wave water washing；
E. table is adjusted：Agglutinate neodymium-iron-boron magnet after second of ultrasonic wave water washing is put into the table that pH value is 9~11 and adjusts solution Middle carry out table mediates reason, and table is adjusted solution to be adjusted by table and mixed with water, and the mass percent concentration that table is adjusted is 0.1- 0.4%；
F. high temperature phosphatization：Agglutinate neodymium-iron-boron magnet after table is adjusted is put into the phosphating solution that pH value is 2~4 in progress High temperature phosphorization processing, the temperature of phosphating solution is 60~80 DEG C, and phosphating time is 10~30 minutes；
G. high temperature pure water is washed：Agglutinate neodymium-iron-boron magnet after high temperature phosphatization is cleaned using high temperature pure water, High temperature pure water temperature is 60~90 DEG C, and washing time is 30~120 seconds, high temperature pure water conductance≤50us/cm；
H. it is passivated：Agglutinate neodymium-iron-boron magnet after high temperature pure water is washed is passivated processing；
E. normal temperature pure water is washed：Agglutinate neodymium-iron-boron magnet after passivation is cleaned using normal temperature pure water；
F. dry：The Agglutinate neodymium-iron-boron magnet that normal temperature pure water is washed dries or drying；
J. dry：Dried Agglutinate neodymium-iron-boron magnet is dried；
The detailed process of pre-treatment is identical with pre-treatment first again.
In the present embodiment, the detailed process for infiltrating processing is：
2. -1 pours into infiltration glue in vacuum impregnation tank, impregnating adhesive coolant-temperature gage is maintained at less than 20 DEG C；
2. -2 by the Agglutinate neodymium-iron-boron magnet after pre-treatment first, vacuum impregnation tank is put into after being fitted into mesh bag or basket In, the liquid level for infiltrating glue is higher than Agglutinate neodymium-iron-boron magnet at least 15mm；
2. -3 use lid to be vacuumized after vacuum impregnation tank is closed using vavuum pump to vacuum impregnation tank, vacuumizing In journey in Real Time Observation vacuum impregnation tank foam height, if foam exceedes vacuum orifice, now close vavuum pump, treat under foam Vavuum pump is then turned on after being down to below the vacuum orifice of vacuum impregnation tank to vacuumize, is gone round and begun again, until vacuum impregnation tank internal pressure Power vacuumizes to stopping after below -0.098MPa, pressurize 10 minutes；
2. -4 pairs of vacuum impregnation tank releases, its interior pressure is opened lid after recovering normal pressure, by Agglutinate neodymium-iron-boron magnet from Taken out in vacuum impregnation tank.
In the present embodiment, step 4. in cleaning process be：Agglutinate neodymium-iron-boron magnet is put into degumming cleaning agent In water, persistently being stirred using compressed air makes Agglutinate neodymium-iron-boron.Magnet ceaselessly stirs, and the time is the 15-60 seconds.
In the present embodiment, degumming cleaning agent is cleaning agent.

Claims (4)

  1. A kind of 1. method for improving Agglutinate neodymium-iron-boron magnet performance, it is characterised in that comprise the following steps：
    1. pending Agglutinate neodymium-iron-boron magnet is subjected to pre-treatment first；
    2. infiltration processing is carried out to the Agglutinate neodymium-iron-boron magnet after pre-treatment first；
    3. whirl coating：Agglutinate neodymium-iron-boron magnet after infiltration is handled is laid in whirl coating motor spindle, starts photoresist spinner and carries out at whirl coating Reason, the time is 1-5 minutes；
    4. clean：Agglutinate neodymium-iron-boron magnet after whirl coating is handled is cleaned at least twice；
    5. the Agglutinate neodymium-iron-boron magnet after cleaning is put into the water that temperature is 50-80 DEG C and soaks 1-5 minutes；
    6. the Agglutinate neodymium-iron-boron magnet after immersion is dried up or dried；
    7. dry：The Agglutinate neodymium-iron-boron magnet for drying up or drying is lain in dryer is put on the web plate for be equipped with absorbent gauze In, toast 30-60 minutes under the conditions of being 100 DEG C -130 DEG C in temperature；
    8. the Agglutinate neodymium-iron-boron magnet of drying is subjected to pre-treatment again；
    9. the Agglutinate neodymium-iron-boron magnet after pre-treatment again is subjected to electrophoretic process or japanning is handled, Agglutinate neodymium-iron-boron magnet surface Overcoat is formed, the thickness of overcoat is 10-35um；
    10. levelling 10- under the conditions of being first 70 DEG C -90 DEG C in temperature by the Agglutinate neodymium-iron-boron magnet after electrophoretic process or japanning processing 30 minutes, then toast 10-40 minutes under the conditions of being 100-200 DEG C in temperature；
    The detailed process of described infiltration processing is：
    2. -1 pours into infiltration glue in vacuum impregnation tank, impregnating adhesive coolant-temperature gage is maintained at less than 20 DEG C；
    2. -2 by the Agglutinate neodymium-iron-boron magnet after pre-treatment first, it is put into after being fitted into mesh bag or basket in vacuum impregnation tank, The liquid level of infiltration glue is higher than Agglutinate neodymium-iron-boron magnet at least 15mm；
    2. -3 use lid to be vacuumized after vacuum impregnation tank is closed using vavuum pump to vacuum impregnation tank, in vacuum The height of foam in Real Time Observation vacuum impregnation tank, if foam exceedes vacuum orifice, vavuum pump is now closed, treats that foam drops to Be then turned on vavuum pump after below the vacuum orifice of vacuum impregnation tank to vacuumize, go round and begin again, until vacuum infiltration pressure inside the tank to- Stop vacuumizing after below 0.098MPa, pressurize 10 minutes；
    2. -4 pairs of vacuum impregnation tank releases, its interior pressure is set to open lid after recovering normal pressure, by Agglutinate neodymium-iron-boron magnet from vacuum Taken out in infiltration jar.
  2. A kind of 2. method for improving Agglutinate neodymium-iron-boron magnet performance according to claim 1, it is characterised in that described head The detailed process of secondary pre-treatment is：
    A. Agglutinate neodymium-iron-boron magnet is put into the degreasant solution that pH value is 9~11 and carries out ungrease treatment, described degreasant solution Mixed by sodium carbonate, sodium tripolyphosphate, dodecyl sodium sulfate and water, the mass percent concentration of wherein sodium carbonate is 15-20%, the mass percent concentration of sodium tripolyphosphate is 10-15%, and the mass percent concentration of dodecyl sodium sulfate is 10-15%；
    B. first time ultrasonic wave water washing：Agglutinate neodymium-iron-boron magnet after ungrease treatment is subjected to first time ultrasonic wave water washing；
    C. derust：Agglutinate neodymium-iron-boron magnet after first time ultrasonic wave water washing is put into the deruster that pH value is 2~7 and carried out Processing of rust removing, deruster are mixed by rust remover and water, and the concentration of volume percent of rust remover is 1-3%；
    D. second of ultrasonic wave water washing：Agglutinate neodymium-iron-boron magnet after derusting is subjected to second of ultrasonic wave water washing；
    E. table is adjusted：Agglutinate neodymium-iron-boron magnet after second of ultrasonic wave water washing is put into the table that pH value is 9~11 to adjust in solution Row table mediates reason, and table is adjusted solution to be adjusted by table and mixed with water, and the mass percent concentration that table is adjusted is 0.1-0.4%；
    F. high temperature phosphatization：Agglutinate neodymium-iron-boron magnet after table is adjusted is put into the phosphating solution that pH value is 2~4 and carries out high temperature Phosphorating treatment, the temperature of phosphating solution is 60~80 DEG C, and phosphating time is 10~30 minutes；
    G. high temperature pure water is washed：Agglutinate neodymium-iron-boron magnet after high temperature phosphatization is cleaned using high temperature pure water, middle height Warm pure water temperature is 60~90 DEG C, and washing time is 30~120 seconds, high temperature pure water conductance≤50us/cm；
    H. it is passivated：Agglutinate neodymium-iron-boron magnet after high temperature pure water is washed is passivated processing；
    E. normal temperature pure water is washed：Agglutinate neodymium-iron-boron magnet after passivation is cleaned using normal temperature pure water；
    F. dry：The Agglutinate neodymium-iron-boron magnet that normal temperature pure water is washed dries or drying；
    J. dry：Dried Agglutinate neodymium-iron-boron magnet is dried；
    The detailed process of described pre-treatment again is identical with described pre-treatment first.
  3. A kind of 3. method for improving Agglutinate neodymium-iron-boron magnet performance according to claim 1, it is characterised in that described step Suddenly 4. in cleaning process be：Agglutinate neodymium-iron-boron magnet is put into the water with degumming cleaning agent, continued using compressed air Stirring makes Agglutinate neodymium-iron-boron magnet ceaselessly stir, and the time is the 15-60 seconds.
  4. 4. a kind of method for improving Agglutinate neodymium-iron-boron magnet performance according to claim 3, it is characterised in that described is de- Gluing cleaning agent is liquid soap, degreasing agent or cleaning agent.
CN201611030387.0A 2016-11-16 2016-11-16 A kind of method for improving Agglutinate neodymium-iron-boron magnet performance Active CN106653345B (en)

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CN107610866A (en) * 2017-10-23 2018-01-19 宁波韵升粘结磁体有限公司 A kind of surface treatment method for improving Agglutinate neodymium-iron-boron magnet performance
CN114318479B (en) * 2021-12-17 2023-05-09 宁波韵升股份有限公司 Cleaning process of electroplated nickel ultrathin magnetic steel

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CN1822252A (en) * 2006-03-30 2006-08-23 上海大学 Temperature pressure binding permanent magnet material and its preparing method
CN101013628A (en) * 2006-12-28 2007-08-08 武汉材料保护研究所 Organic sealing of bonded neodymium-iron-boron magnet and cathodic electrophoretic composite surface protection technology
CN101299364A (en) * 2008-03-13 2008-11-05 上海爱普生磁性器件有限公司 Agglutinate rare earth magnet for blue laser optical disc drive as well as preparing method thereof
CN101937753A (en) * 2010-08-10 2011-01-05 天津海特磁性材料有限公司 Process for producing vacuum infiltration anaerobic adhesive for bonded neodymium-iron-boron magnet and application thereof
CN103498139A (en) * 2013-09-24 2014-01-08 宁波韵升粘结磁体有限公司 Method for improving corrosion resistance of neodymium-iron-boron magnetic body

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JP4774378B2 (en) * 2006-03-13 2011-09-14 日立オートモティブシステムズ株式会社 Magnet using binder and method for producing the same

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Publication number Priority date Publication date Assignee Title
CN1822252A (en) * 2006-03-30 2006-08-23 上海大学 Temperature pressure binding permanent magnet material and its preparing method
CN101013628A (en) * 2006-12-28 2007-08-08 武汉材料保护研究所 Organic sealing of bonded neodymium-iron-boron magnet and cathodic electrophoretic composite surface protection technology
CN101299364A (en) * 2008-03-13 2008-11-05 上海爱普生磁性器件有限公司 Agglutinate rare earth magnet for blue laser optical disc drive as well as preparing method thereof
CN101937753A (en) * 2010-08-10 2011-01-05 天津海特磁性材料有限公司 Process for producing vacuum infiltration anaerobic adhesive for bonded neodymium-iron-boron magnet and application thereof
CN103498139A (en) * 2013-09-24 2014-01-08 宁波韵升粘结磁体有限公司 Method for improving corrosion resistance of neodymium-iron-boron magnetic body

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