CN102360653B - Flexible rare earth bonded magnet with roll anisotropy and manufacturing method thereof - Google Patents
Flexible rare earth bonded magnet with roll anisotropy and manufacturing method thereof Download PDFInfo
- Publication number
- CN102360653B CN102360653B CN201110152832.1A CN201110152832A CN102360653B CN 102360653 B CN102360653 B CN 102360653B CN 201110152832 A CN201110152832 A CN 201110152832A CN 102360653 B CN102360653 B CN 102360653B
- Authority
- CN
- China
- Prior art keywords
- rare earth
- magnet powder
- anisotropy
- anisotropic
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a flexible rare earth bonded magnet with roll anisotropy and a manufacturing method thereof. The magnet comprises the following components in part by mass: 94 to 97 parts of anisotropic rare earth composite permanent magnet powder, 2.8 to 5.5 parts of binder and 0.2 to 0.5 part of processing aid, wherein the anisotropic rare earth composite permanent magnet powder comprises anisotropic ferrite permanent magnet powder, anisotropic samarium-iron-nitrogen permanent magnet powder, anisotropic neodymium-iron-nitrogen permanent magnet powder and neodymium-iron-boron permanent magnet powder with roll anisotropy. The anisotropic rare earth composite permanent magnet powder is subjected to surface treatment by using a surface treatment agent. A permanent magnet product with the thickness of 0.35 to 8mm and the maximum width of 1,000mm can be manufactured by processing the components by a calendering method; the disadvantages of various conventional permanent magnet materials are overcome; and a magnetic material which has a thin wall, large length-diameter ratio, high flexibility and higher magnetic performance can be manufactured under the condition that an oriented magnetic field is not required to be applied.
Description
Technical field
The present invention relates to field of magnetic material, relate in particular to a kind of flexible rare earth bonded magnet with roll anisotropy and manufacture method thereof.
Background technology
Permanent magnetic material is an important branch of electronic material, and its performance height has directly reflected the development level of a national electronic material.Along with high performance permanent magnetic materials is in the extensive use of the industries such as computer, automobile, space flight, office equipment, household electrical appliances and medical treatment, its market demand cumulative year after year.
At present, the high performance permanent magnetic materials on market is rare-earth bond magnet mostly; So-called rare-earth bond magnet refers to a kind of magnet that rare earth permanent-magnet powder is sneaked into a certain proportion of binding agent and made by certain processing technology, and its final form can be divided into rigidity rare-earth bond magnet and flexible rare-earth cementing magnet.The magnetic energy product of existing rigidity rare-earth bond magnet is 64～160kJ/m
3, because this bonding class permanent magnetic material is rigidity, because thickness and the pliability of its goods are all restricted, therefore cannot make the magnetic device of thin-walled, big L/D ratio, be difficult to meet the demand of electronic equipment to light weight, portable, high reliability development.Existing flexible rare-earth cementing magnet comprises flexible adhesion ferrimagnet and isotropic flexible rare-earth cementing magnet, and the maximum magnetic energy product of flexible adhesion ferrimagnet is wherein only 14kJ/m
3left and right, the maximum magnetic energy product of the wherein each flexible rare-earth cementing magnet to the same sex is also at 50kJ/m
3below, so they far can not meet the performance requirement of electronic equipment; If adopt the method that improves magnetic loading to improve the performance of magnet, this magnet can be lost pliability gradually, and serious meeting causes the magnet cannot moulding, does not reach the requirement of actual use.
Current rare-earth bond magnet adopts the production technology of injection moulding or extrusion modling to process mostly; So-called injection moulding by magnetic and binding agent (for example refers to, described binding agent is generally the conventional binding agents in this area such as nylon 6, polyamide and polyester) mix, make dry pellet via mixing and Ministry of worker granulation, then pellet is delivered to heating chamber heating with spiral guide bar, be finally injected into mould molding and carry out a whole set of cooling production technology; Technical process and the injection moulding of extrusion modling are basic identical, and unique difference is that extrusion modling is that the pellet after heating is clamp-oned to die for molding by a hole.But, above-mentioned two kinds of production technologies all need to apply high-octane alignment magnetic field in forming process, just can make produced rare-earth bond magnet reach good orientation effect, also just can make produced rare-earth bond magnet have higher magnetic property, this makes the production technology of rare-earth bond magnet become very complicated.
As can be seen here, producing a kind of thin-walled, big L/D ratio, possessing good flexibility and becoming the task of top priority compared with the magnetic material of high magnetic characteristics without apply high-energy alignment magnetic field in the situation that.
Summary of the invention
The embodiment of the present invention provides a kind of flexible rare earth bonded magnet with roll anisotropy and manufacture method thereof so that just producing a kind of thin-walled, big L/D ratio without apply high-energy alignment magnetic field in the situation that, possess good flexibility and compared with the magnetic material of high magnetic characteristics.
The object of the invention is to be achieved through the following technical solutions:
A kind of flexible rare earth bonded magnet with roll anisotropy, its component comprises: anisotropy rare earth composite permanet magnet powder, binding agent and processing aid; Its each component accounts for total mass ratio:
Anisotropy rare earth composite permanet magnet powder, 94 parts～97 parts;
Binding agent, 2.8 parts～5.5 parts;
Processing aid, 0.2 part～0.5 part;
Described anisotropy rare earth composite permanet magnet powder is the anisotropy rare earth composite permanet magnet powder surface-treated through surface conditioning agent.
Preferably, the component of corresponding anisotropy rare earth composite permanet magnet powder comprises:
Anisotropic ferrite permanent-magnet powder, anisotropic samarium iron nitrogen permanent-magnet powder, anisotropic neodymium iron nitrogen permanent-magnet powder and there is the Nd-Fe-B permanent magnetic powder of rolling anisotropic;
The mass ratio that each component before surface treatment accounts for anisotropy rare earth composite permanet magnet powder total amount is:
The Nd-Fe-B permanent magnetic powder with rolling anisotropic accounts for: 89 parts～96 parts;
Anisotropic ferrite permanent-magnet powder accounts for: 2 parts～5 parts;
Anisotropic samarium iron nitrogen permanent-magnet powder accounts for: 1 part～3 parts;
Anisotropic neodymium iron nitrogen permanent-magnet powder accounts for: 1 part～3 parts.
Preferably, the component of corresponding surface conditioning agent comprises: the western modified amine resin of silane coupling agent, epoxy resin and Manny normal temperature cure agent; Wherein:
The quality of silane coupling agent is 0.5%～1% of the front anisotropy rare earth composite permanet magnet powder gross mass of surface treatment,
The quality of epoxy resin is 1%～2% of the front anisotropy rare earth composite permanet magnet powder gross mass of surface treatment,
The quality of the western modified amine resin of Manny normal temperature cure agent is 50%～80% of epoxy resin quality.
Preferably, corresponding binding agent is at least one in haloflex, acrylonitrile-butadiene rubber, acetic acid-acetate ethylene copolymer, chlorosulfonated polyethylene and thermoplastic elastomer (TPE).
Preferably, corresponding processing aid is lubricant and plasticizer, and the two mass ratio is 1: 1.
A manufacture method for flexible rare earth bonded magnet with roll anisotropy, for the manufacture of the flexible rare earth bonded magnet with roll anisotropy described in technique scheme, comprises the following steps:
A, utilize surface conditioning agent to carry out surface treatment to anisotropy rare earth composite permanet magnet powder;
B, carry out mixing according to predetermined ratio to anisotropy rare earth composite permanet magnet powder, binding agent and processing aid;
C, the product after mixing is carried out to fragmentation, and make it pass through 12 mesh standard sieves;
D, screenings is carried out on calender to a time calendering formation, to form logical magnetic thin slice;
E, will lead to that magnetic thin slice is superimposed to be rolled again, to obtain flexible rare earth bonded magnet with roll anisotropy.
As seen from the above technical solution provided by the invention, the flexible rare earth bonded magnet with roll anisotropy that the embodiment of the present invention provides is by by the anisotropy rare earth composite permanet magnet powder of 94 parts～97 parts, and the processing aid of the binding agent of 2.8 parts～5.5 parts and 0.2 part～0.5 part mutually rolls bonding and forms; Because the anisotropy rare earth composite permanet magnet powder in the embodiment of the present invention is to have the Nd-Fe-B permanent magnetic powder of rolling anisotropic as main essential composition, and auxiliaryly there is an anisotropic ferrite permanent-magnet powder, and thisly there is the Nd-Fe-B permanent magnetic powder of rolling anisotropic and the mixed-powder of heterotropic ferrite permanent-magnet powder just carried out rolling orientation in the process of calendering, thereby can be making thin-walled, big L/D ratio without apply high-energy alignment magnetic field in the situation that, possess good flexibility and compared with the magnetic material of high magnetic characteristics.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite that creative work is capable, can also obtain other accompanying drawings according to these accompanying drawings.
The schematic flow sheet of the manufacture method that Fig. 1 is magnet that the embodiment of the present invention provides;
The principle schematic one of the manufacture method that Fig. 2 is magnet that the embodiment of the present invention provides;
The principle schematic two of the manufacture method that Fig. 3 is magnet that the embodiment of the present invention provides.
Embodiment
Face, in conjunction with the accompanying drawing in the embodiment of the present invention, is clearly and completely described the technical scheme in the embodiment of the present invention below, and obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to protection scope of the present invention.
First the flexible rare earth bonded magnet with roll anisotropy embodiment of the present invention being provided is below described in detail.
The flexible rare earth bonded magnet with roll anisotropy that the embodiment of the present invention provides is a kind of flexible rare-earth cementing magnet with rolling anisotropic, and its component comprises: anisotropy rare earth composite permanet magnet powder, binding agent and processing aid; Its each component accounts for total mass ratio:
Anisotropy rare earth composite permanet magnet powder, 94 parts～97 parts;
Binding agent, 2.8 parts～5.5 parts;
Processing aid, 0.2 part～0.5 part;
Described anisotropy rare earth composite permanet magnet powder is the anisotropy rare earth composite permanet magnet powder surface-treated through surface conditioning agent.
Particularly, the specific embodiments of each component of this flexible rare earth bonded magnet with roll anisotropy is as follows:
(1) component of corresponding anisotropy rare earth composite permanet magnet powder comprises: anisotropic ferrite permanent-magnet powder, anisotropic samarium iron nitrogen permanent-magnet powder, anisotropic neodymium iron nitrogen permanent-magnet powder and have the Nd-Fe-B permanent magnetic powder of rolling anisotropic;
The mass ratio that each component before surface treatment accounts for anisotropy rare earth composite permanet magnet powder total amount is:
The Nd-Fe-B permanent magnetic powder with rolling anisotropic accounts for: 89 parts～96 parts;
Anisotropic ferrite permanent-magnet powder accounts for: 2 parts～5 parts;
Anisotropic samarium iron nitrogen permanent-magnet powder accounts for: 1 part～3 parts;
Anisotropic neodymium iron nitrogen permanent-magnet powder accounts for: 1 part～3 parts;
That is to say, anisotropic ferrite permanent-magnet powder, anisotropic samarium iron nitrogen permanent-magnet powder and anisotropic neodymium iron nitrogen permanent-magnet powder account for altogether: 4 parts～11 parts.
The anisotropic ferrite permanent-magnet powder that the embodiment of the present invention adopts, anisotropic samarium iron nitrogen permanent-magnet powder, anisotropic neodymium iron nitrogen permanent-magnet powder refer to respectively of the prior artly can have anisotropic ferrite permanent-magnet powder, samarium iron nitrogen permanent-magnet powder, a neodymium iron nitrogen permanent-magnet powder by what be purchased that means obtain.The Nd-Fe-B permanent magnetic powder of what the embodiment of the present invention adopted have rolling anisotropic is the nearly plate like Nd-Fe-B permanent magnetic powder of a kind of grain shape, also can purchase the means of selling by business and obtain, and it has rolling anisotropic; Add man-hour carrying out calendering formation, due to the effect of constant speed roll, the normal direction of this sheet permanent-magnet powder can be parallel with the thickness direction of sheet material, thereby make this sheet anisotropy permanent-magnet powder produce stress orientation to a certain degree, and then the easy magnetizing axis that makes this permanent-magnet powder is parallel to the thickness direction of sheet material, the magnetic property that finally can make sheet metal thickness direction is far away higher than the magnetic property of other directions.Just because of having adopted this Nd-Fe-B permanent magnetic powder with rolling anisotropic, therefore make flexible rare earth bonded magnet with roll anisotropy that the embodiment of the present invention provides not only in process of production without applying high-energy alignment magnetic field, and there is better flexibility and better magnetic property than the rare-earth bond magnet of existing generating process manufacturing; Meanwhile, thisly in calender line, produce anisotropic Nd-Fe-B permanent magnetic powder and also make the advantage such as thin-walled, big L/D ratio of its manufacturing magnet be superior to the rare-earth bond magnet of existing generating process manufacturing far away.
(2) in order to improve the compatibility between permanent-magnet powder and binding agent and to improve the magnetic property of manufacturing magnet; anisotropy rare earth composite permanet magnet powder of the present invention need pass through the surface treatment of surface conditioning agent, and forms organic protection layer on magnetic surface.Wherein, the component of corresponding surface conditioning agent comprises the western modified amine resin of silane coupling agent of the prior art, epoxy resin and Manny normal temperature cure agent; The quality of silane coupling agent is 0.5%～1% of the front anisotropy rare earth composite permanet magnet powder gross mass of surface treatment, the quality of epoxy resin is 1%～2% of the front anisotropy rare earth composite permanet magnet powder gross mass of surface treatment, the quality of the western modified amine resin of Manny normal temperature cure agent is 50%～80% of epoxy resin quality, and the gross mass of the anisotropy rare earth composite permanet magnet powder after surface treatment should account for 94 parts～97 parts of the flexible rare earth bonded magnet with roll anisotropy gross mass that will make.In the time utilizing surface conditioning agent to process anisotropy rare earth composite permanet magnet powder; silane coupling agent and epoxy resin are coated on the surface of magnetic; and the western modified amine resin of Manny normal temperature cure agent can be cured the surface coated silane coupling agent of magnetic and epoxy resin layer at normal temperatures, there is some strength organic protection layer thereby form one deck on the surface of magnetic powder particle.This organic protection layer can strengthen the bond strength between magnetic and binding agent; and magnetic being carried out in the process of further processing; can under the effect of roller temperature, further solidify magnetic and binding agent, thereby effectively prevent that magnetic from causing magnetic property loss owing to being subject to the impact of rolling temperature in the course of processing.
(3) binding agent of the present invention can be one or more in the conventional haloflex of those skilled in the art, acrylonitrile-butadiene rubber, acetic acid-acetate ethylene copolymer, chlorosulfonated polyethylene and thermoplastic elastomer (TPE); Wherein, corresponding thermoplastic elastomer (TPE) refers to the elasticity under normal temperature with rubber, the one class elastomer under high temperature with plasticization moulding, current primary categories comprises: styrene analog thermoplastic elastomer, olefin hydrocarbons thermoplasticity elastic body, dienes thermoplastic elastomer (TPE), polyvinyl chloride-base thermoplastic elastomer and polyurethanes thermoplastic elastomer (TPE) etc.
(4) processing aid of the present invention can be the conventional lubricant of those skilled in the art and plasticizer, and the mass ratio of the two is preferably 1: 1; For example: corresponding lubricant can be lubricating oil of the prior art, silicone oil, fatty acid amide, oleic acid, polyester, synthetic ester, carboxylic acid etc.; Corresponding plasticizer can be phthalic acid ester of the prior art, phosphate, benzene polyacid ester, alkyl sulfonic ester etc.
The manufacture method of the flexible rare earth bonded magnet with roll anisotropy below embodiment of the present invention being provided is described in detail.
As shown in Figure 1, the manufacture method of the flexible rare earth bonded magnet with roll anisotropy that the embodiment of the present invention provides, can be used for manufacturing the flexible rare earth bonded magnet with roll anisotropy described in technique scheme, and its concrete steps are as follows:
A, utilize surface conditioning agent to carry out surface treatment to anisotropy rare earth composite permanet magnet powder;
Particularly, first determine required gross mass of carrying out anisotropy rare earth composite permanet magnet powder after surface treatment (accounting for a value between 94 parts to 97 parts of flexible rare earth bonded magnet with roll anisotropy gross mass) according to the gross mass of the flexible rare earth bonded magnet with roll anisotropy that will make; Secondly, according to required gross mass of carrying out anisotropy rare earth composite permanet magnet powder after surface treatment, and the mix proportion scheme of the surface conditioning agent that will take (for example: can adopt any scheme in table 3) is determined the required gross mass of anisotropy rare earth composite permanet magnet powder before surface treatment and the use amount of every kind of surface conditioning agent of carrying out; Again secondly, according to required gross mass of carrying out anisotropy rare earth composite permanet magnet powder before surface treatment, and the component proportion scheme of anisotropy rare earth composite permanet magnet powder (for example: can adopt any scheme in table 2) is determined required anisotropic ferrite permanent-magnet powder, anisotropic samarium iron nitrogen permanent-magnet powder, anisotropic neodymium iron nitrogen permanent-magnet powder and is had the quality of the Nd-Fe-B permanent magnetic powder of rolling anisotropic; Then, weigh successively anisotropic ferrite permanent-magnet powder, anisotropic samarium iron nitrogen permanent-magnet powder, anisotropic neodymium iron nitrogen permanent-magnet powder, there is the Nd-Fe-B permanent magnetic powder of rolling anisotropic according to result of calculation, and the western modified amine resin of silane coupling agent, epoxy resin and Manny normal temperature cure agent; Finally, by western to silane coupling agent, epoxy resin and Manny modified amine resin normal temperature cure agent dilute with water, and with anisotropic ferrite permanent-magnet powder, anisotropic samarium iron nitrogen permanent-magnet powder, anisotropic neodymium iron nitrogen permanent-magnet powder and have together with the Nd-Fe-B permanent magnetic powder of rolling anisotropic and pour in blender and stir, thereby make the surface of these anisotropy rare earth composite permanet magnet powder form one deck organic protection layer; Concrete process equipment and working process parameter related in the operation of this step all can adopt the technical scheme of the conventional use of those of ordinary skill in the art in prior art to implement.
B, carry out mixing according to predetermined ratio to anisotropy rare earth composite permanet magnet powder, binding agent and processing aid;
Particularly, according to the required gross mass of carrying out anisotropy rare earth composite permanet magnet powder after surface treatment calculating in steps A, determine the quality of required binding agent and processing aid and weigh; Load weighted binding agent and processing aid (for example: corresponding kneading device can be the conventional equipment of this areas such as mill of the prior art, banbury and screw rod continuous mixer are put into kneading device with together with anisotropy rare earth composite permanet magnet powder after surface treatment, but preferably select banbury) in carry out mixing so that binding agent and processing aid evenly spread in described permanent-magnet powder.Concrete process equipment and working process parameter related in the operation of this step all can adopt the technical scheme of the conventional use of those of ordinary skill in the art in prior art to implement, but the processing temperature of kneading device preferably remains on 90～110 DEG C.
Further, as an example of mixing process as shown in Figure 2 example, this step is carried out to more detailed description; Label 21 represents the mixed powder that binding agent, processing aid and anisotropy rare earth composite permanet magnet powder form; Label 22 represents that one group of a kind of kneading device of the prior art to pricking differential roll.The mixed powder 21 forming when binding agent, processing aid and anisotropy rare earth composite permanet magnet powder is during through differential roll, because this group is pushed described mixed powder 21 with different rotating speeds two rolls pricking in differential roll, thereby make binding agent and processing aid be evenly dispersed in permanent-magnet powder and series of physical occur to change the product 23 after final formation is uniformly mixing.
C, the product after mixing is carried out to fragmentation, and make it pass through 12 mesh standard sieves;
Particularly, the product after mixing is carried out to fragmentation by breaker of the prior art, and utilize 12 mesh standard sieves to screen the particle obtaining, be less than 12 object pellets to obtain granularity.Breaker, 12 mesh standard sieves and concrete crushing process and screening technology related in the operation of this step all can adopt the technical scheme of the conventional use of those of ordinary skill in the art in prior art to implement.
D, screenings is carried out on calender to a time calendering formation, to form logical magnetic thin slice;
Particularly, calendering formation is a kind of common method of preparing bonded permanent magnet, and it is by the calendering shape material that laminates by pellet; Calender is the common device that completes calendering formation technique in prior art; For the manufacture method of the flexible rare earth bonded magnet with roll anisotropy providing for the embodiment of the present invention, preferably select large-scale calender to roll.Carry out a time calendering formation through the step C screenings that contains binding agent, processing aid and anisotropy rare earth composite permanet magnet powder after treatment by calender, thereby form logical magnetic thin slice.Logical magnetic thin slice is generally thinner, is also often called " thin-pass magnetic sheet ", and its thickness is relevant with the technological parameter of calender.Concrete process equipment and working process parameter related in the operation of this step all can adopt the technical scheme of the conventional use of those of ordinary skill in the art in prior art to implement, but the processing temperature of calender preferably remains on 40～50 DEG C.
Further, as shown in Figure 3, in an example of the present invention, adopt and carried out calendering formation to pricking constant speed roller mill 32, carry out a time calendering formation through the step C screenings 31 that contains binding agent, processing aid and anisotropy rare earth composite permanet magnet powder after treatment to pricking on constant speed roller mill 32, thereby forming logical magnetic thin slice 33.
E, will lead to that magnetic thin slice is superimposed to be rolled again, to obtain flexible rare earth bonded magnet with roll anisotropy.
Particularly, will lead to superimposed being again rolled of magnetic thin slice and can obtain thickness between 0.35mm to 8mm, maximum fabric width can reach the flexible rare earth bonded magnet with roll anisotropy of 1000mm.More than the magnetic energy product of this flexible rare earth bonded magnet with roll anisotropy can reach 10MGOe (MGOe is the unit of magnetic energy product), and can make sheet, strip, the almost section bar of unlimited various shape, machinery, physics and magnetic such as tabular by calendering formation, even can directly be processed into the thin wall type structure member of shape complexity, therefore can make up the weak point of permanent magnetic material on present market completely.
Further, for small and special electric machine, the flexible rare earth bonded magnet with roll anisotropy that the embodiment of the present invention provides can make small and special electric machine have good static characteristic and dynamic characteristic, simplifies the magnetic Circuit Design of motor, and the stability that motor has been possessed not disturbed by external magnetic field; Meanwhile, the raw material adopting due to this magnet has higher high-coercive force and HCJ, thereby higher magnetomotive force and air-gap field can be provided, and can make the volume of motor reduce, the increase of exerting oneself of motor, and efficiency improves and is energy-saving and cost-reducing; This development for small and special electric machine modularization, modularization, electromechanical integration has important practical significance.
In addition, the flexible rare earth bonded magnet with roll anisotropy utilization of calendering formation technique manufacturing that what the embodiment of the present invention provided pass through has the rolling orientation characteristic of the Nd-Fe-B permanent magnetic powder of rolling anisotropic, thereby adopts lower particle content just to produce the bonded rare earth magnet with superior performance.Compared with the compression molding rare earth magnet of producing with the big batchization of same magnetic energy product, the quality percentage composition of rare-earth magnetic has reduced more than 5%, thereby has effectively saved the rare earth resources of China.
The flexible rare earth bonded magnet with roll anisotropy and the manufacture method thereof that provide for ease of understanding the embodiment of the present invention, enumerate several examples below and in conjunction with respective drawings, its implementation procedure be described in detail.
First, provide the constituent content of the flexible rare earth bonded magnet with roll anisotropy described in several groups of present specification, as shown in table 1, the part shown in this table refers to that each component accounts for the mass ratio of flexible rare earth bonded magnet with roll anisotropy total amount.
Table 1:
| Embodiment | Anisotropy rare earth composite permanet magnet powder | Binding agent | Processing aid |
| Embodiment mono- | 94 parts | 5.5 part | 0.5 part |
| Embodiment bis- | 95 parts | 4.5 part | 0.5 part |
| Embodiment tri- | 96.5 parts | 3.3 part | 0.2 part |
| Embodiment tetra- | 94.5 parts | 5.25 part | 0.25 part |
| Embodiment five | 95.5 parts | 4.25 part | 0.25 part |
| Embodiment six | 96 parts | 3.8 part | 0.2 part |
| Embodiment seven | 97 parts | 2.8 part | 0.2 part |
For the embodiment of each flexible rare earth bonded magnet with roll anisotropy described in table 1, anisotropy rare earth composite permanet magnet powder in each embodiment all can be configured according to the component proportion scheme of the anisotropy rare earth composite permanet magnet powder shown in table 2, and the part shown in this table refers to that each component of anisotropy rare earth composite permanet magnet powder accounts for the mass ratio of anisotropy rare earth composite permanet magnet powder total amount.
Table 2:
Each group anisotropy rare earth composite permanet magnet powder described in table 2, all can carry out surface treatment according to the mix proportion scheme of the arbitrary group of surface conditioning agent providing in table 3, and the gross mass of anisotropy rare earth composite permanet magnet powder after these surface treatments should account for 94 parts～97 parts of the flexible rare earth bonded magnet with roll anisotropy gross mass that will make; The constituent content of the surface conditioning agent that corresponding anisotropy rare earth composite permanet magnet powder can adopt while carrying out surface treatment is as shown in table 3;
Table 3:
Below embodiment mentioned in above table mono-, embodiment bis-and embodiment tri-are conducted further description.
Embodiment mono-
In the present embodiment, the anisotropy rare earth composite permanet magnet powder after surface treatment adopting is 94 parts, and it is 0.5 part with processing aid that binding agent is 5.5 parts.Wherein, in the anisotropy rare earth composite permanet magnet powder after surface treatment, anisotropy neodymium iron nitrogen permanent-magnet powder after surface treatment accounts for 3 parts in the anisotropy rare earth composite permanet magnet powder total amount after surface treatment, anisotropy samarium iron nitrogen permanent-magnet powder after surface treatment accounts for 3 parts in the anisotropy rare earth composite permanet magnet powder total amount after surface treatment, anisotropic ferrite powder after surface treatment accounts for 5 parts in the anisotropy rare earth composite permanet magnet powder total amount after surface treatment, the Nd-Fe-B permanent magnetic powder with rolling anisotropic after surface treatment accounts for 89 parts in the anisotropy rare earth composite permanet magnet powder total amount after surface treatment.
The content of the surface conditioning agent that these anisotropy rare earth composite permanet magnet powder after surface treatment adopt is: the quality of silane coupling agent be before surface treatment anisotropy rare earth composite permanet magnet powder gross mass 0.5%, the quality of epoxy resin be before surface treatment anisotropy rare earth composite permanet magnet powder gross mass 1%, the quality of the western modified amine resin of Manny normal temperature cure agent is 50% of epoxy resin quality.
The calendering technology of this magnetic is: should be 90～110 DEG C for the temperature of mixing banbury, the product after banburying is carried out to fragmentation, and make it pass through 12 order standard network, the temperature of calender is 40～50 DEG C.The performance of the final magnet obtaining is as shown in table 4.
Table 4:
| (BH)max(MGOe) | Br(KGs) | Hcj(kOe) | Hcb(kOe) |
| 10.41 | 6.80 | 16.13 | 5.90 |
Wherein,
(BH) max (MGOe) in table represents the maximum magnetic energy product of magnet;
Br (KGs) in table represents the remanent magnetism of magnet;
Hcj (kOe) in table represents the HCJ of magnet;
Hcb (kOe) in table represents the magnetic strength coercive force of magnet;
These performance index are all English units of magnetic property index in prior art above, represent with dummy suffix notation known to a person of ordinary skill in the art herein, below abbreviation in list also represent corresponding implication, do not repeating.
And contrast the anisotropy rare-earth magnetic without rolling orientation characteristic of the prior art, utilize the magnetic property of the magnet that magnetic field orientating obtains as shown in table 5.
Table 5:
| (BH)max(MGOe) | Br(KGs) | Hcj(kOe) | Hcb(kOe) |
| 8.22 | 5.90 | 15.36 | 5.36 |
Embodiment bis-
In the present embodiment, the anisotropy rare earth composite permanet magnet powder after surface treatment adopting is 95 parts, and it is 0.5 part with processing aid that binding agent is 4.5 parts.Wherein, in the anisotropy rare earth composite permanet magnet powder after surface treatment, anisotropy neodymium iron nitrogen permanent-magnet powder after surface treatment accounts for 3 parts in the anisotropy rare earth composite permanet magnet powder total amount after surface treatment, anisotropy samarium iron nitrogen permanent-magnet powder after surface treatment accounts for 3 parts in the anisotropy rare earth composite permanet magnet powder total amount after surface treatment, anisotropic ferrite powder after surface treatment accounts for 4 parts in the anisotropy rare earth composite permanet magnet powder total amount after surface treatment, the Nd-Fe-B permanent magnetic powder with rolling anisotropic after surface treatment accounts for 90 parts in the anisotropy rare earth composite permanet magnet powder total amount after surface treatment.
The content of the surface conditioning agent that these anisotropy rare earth composite permanet magnet powder after surface treatment adopt is: the quality of silane coupling agent be before surface treatment anisotropy rare earth composite permanet magnet powder gross mass 0.7%, the quality of epoxy resin be before surface treatment anisotropy rare earth composite permanet magnet powder gross mass 1.5%, the quality of the western modified amine resin of Manny normal temperature cure agent is 60% of epoxy resin quality.
The calendering technology of this magnetic is: should be 90～110 DEG C for the temperature of mixing banbury, the product after banburying is carried out to fragmentation, and make it pass through 12 order standard network, the temperature of calender is 40～50 DEG C.The performance of the final magnet obtaining is as shown in table 6.
Table 6:
| (BH)max(MGOe) | Br(KGs) | Hcj(kOe) | Hcb(kOe) |
| 11.5 | 7.20 | 15.92 | 6.1 |
And contrast the anisotropy rare-earth magnetic without rolling orientation characteristic of the prior art, utilize the magnetic property of the magnet that magnetic field orientating obtains as shown in table 7.
Table 7:
| (BH)max(MGOe) | Br(KGs) | Hcj(kOe) | Hcb(kOe) |
| 8.5 | 6.10 | 15.21 | 5.6 |
Embodiment tri-
In the present embodiment, the anisotropy rare earth composite permanet magnet powder after surface treatment adopting is 96.5 parts, and it is 0.2 part with processing aid that binding agent is 3.3 parts.Wherein, in the anisotropy rare earth composite permanet magnet powder after surface treatment, anisotropy neodymium iron nitrogen permanent-magnet powder after surface treatment accounts for 3 parts in the anisotropy rare earth composite permanet magnet powder total amount after surface treatment, anisotropy samarium iron nitrogen permanent-magnet powder after surface treatment accounts for 2 parts in the anisotropy rare earth composite permanet magnet powder total amount after surface treatment, anisotropic ferrite powder after surface treatment accounts for 4 parts in the anisotropy rare earth composite permanet magnet powder total amount after surface treatment, the Nd-Fe-B permanent magnetic powder with rolling anisotropic after surface treatment accounts for 92 parts in the anisotropy rare earth composite permanet magnet powder total amount after surface treatment.
The content of the surface conditioning agent that these anisotropy rare earth composite permanet magnet powder after surface treatment adopt is: the quality of silane coupling agent be before surface treatment anisotropy rare earth composite permanet magnet powder gross mass 0.8%, the quality of epoxy resin be before surface treatment anisotropy rare earth composite permanet magnet powder gross mass 1.8%, the quality of the western modified amine resin of Manny normal temperature cure agent is 70% of epoxy resin quality.
The calendering technology of this magnetic is: should be 90～110 DEG C for the temperature of mixing banbury, the product after banburying is carried out to fragmentation, and make it pass through 12 order standard network, the temperature of calender is 40～50 DEG C.The performance of the final magnet obtaining is as shown in table 8.
Table 8:
| (BH)max(MGOe) | Br(KGs) | Hcj(kOe) | Hcb(kOe) |
| 12.4 | 7.60 | 15.12 | 6.8 |
And contrast the anisotropy rare-earth magnetic without rolling orientation characteristic of the prior art, utilize the magnetic property of the magnet that magnetic field orientating obtains as shown in table 9.
Table 9:
| (BH)max(MGOe) | Br(KGs) | Hcj(kOe) | Hcb(kOe) |
| 9.0 | 6.50 | 15.02 | 6.1 |
The enforcement of the embodiment of the present invention can produce the permanent magnetism goods of thickness between 0.5mm to 1200mm, make up the deficiency of existing various permanent magnet materials, therefore for industry of each application permanent magnet provides a kind of thin-walled, big L/D ratio, possesses good flexibility and compared with the magnetic material of high magnetic characteristics.
The above; only for preferably embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (5)
1. a flexible rare earth bonded magnet with roll anisotropy, is characterized in that, its component comprises: anisotropy rare earth composite permanet magnet powder, binding agent and processing aid; Its each component accounts for total mass ratio:
Anisotropy rare earth composite permanet magnet powder, 94 parts～97 parts;
Binding agent, 2.8 parts～5.5 parts;
Processing aid, 0.2 part～0.5 part;
Described anisotropy rare earth composite permanet magnet powder is the anisotropy rare earth composite permanet magnet powder surface-treated through surface conditioning agent;
The component of described anisotropy rare earth composite permanet magnet powder comprises: anisotropic ferrite permanent-magnet powder, anisotropic samarium iron nitrogen permanent-magnet powder, anisotropic neodymium iron nitrogen permanent-magnet powder and have the Nd-Fe-B permanent magnetic powder of rolling anisotropic;
The mass ratio that each component before surface treatment accounts for anisotropy rare earth composite permanet magnet powder total amount is:
The Nd-Fe-B permanent magnetic powder with rolling anisotropic accounts for: 89 parts～96 parts;
Anisotropic ferrite permanent-magnet powder accounts for: 2 parts～5 parts;
Anisotropic samarium iron nitrogen permanent-magnet powder accounts for: 1 part～3 parts;
Anisotropic neodymium iron nitrogen permanent-magnet powder accounts for: 1 part～3 parts.
2. flexible rare earth bonded magnet with roll anisotropy according to claim 1, is characterized in that, the component of described surface conditioning agent comprises: the western modified amine resin of silane coupling agent, epoxy resin and Manny normal temperature cure agent; Wherein:
The quality of silane coupling agent is 0.5%～1% of the front anisotropy rare earth composite permanet magnet powder gross mass of surface treatment,
The quality of epoxy resin is 1%～2% of the front anisotropy rare earth composite permanet magnet powder gross mass of surface treatment,
The quality of the western modified amine resin of Manny normal temperature cure agent is 50%～80% of epoxy resin quality.
3. flexible rare earth bonded magnet with roll anisotropy according to claim 1 and 2, it is characterized in that, described binding agent is at least one in haloflex, acrylonitrile-butadiene rubber, acetic acid-acetate ethylene copolymer, chlorosulfonated polyethylene and thermoplastic elastomer (TPE).
4. flexible rare earth bonded magnet with roll anisotropy according to claim 1 and 2, is characterized in that, described processing aid is lubricant and plasticizer, and the two mass ratio is 1:1.
5. a manufacture method for flexible rare earth bonded magnet with roll anisotropy, for the manufacture of the flexible rare earth bonded magnet with roll anisotropy described in any one in claim 1 to 4, is characterized in that: comprise the following steps:
A, utilize surface conditioning agent to carry out surface treatment to anisotropy rare earth composite permanet magnet powder;
B, carry out mixing according to predetermined ratio to anisotropy rare earth composite permanet magnet powder, binding agent and processing aid;
C, the product after mixing is carried out to fragmentation, and make it pass through 12 mesh standard sieves;
D, screenings is carried out on calender to a time calendering formation, to form logical magnetic thin slice;
E, will lead to that magnetic thin slice is superimposed to be rolled again, to obtain flexible rare earth bonded magnet with roll anisotropy;
The component of described anisotropy rare earth composite permanet magnet powder comprises: anisotropic ferrite permanent-magnet powder, anisotropic samarium iron nitrogen permanent-magnet powder, anisotropic neodymium iron nitrogen permanent-magnet powder and have the Nd-Fe-B permanent magnetic powder of rolling anisotropic;
The mass ratio that each component before surface treatment accounts for anisotropy rare earth composite permanet magnet powder total amount is:
The Nd-Fe-B permanent magnetic powder with rolling anisotropic accounts for: 89 parts～96 parts;
Anisotropic ferrite permanent-magnet powder accounts for: 2 parts～5 parts;
Anisotropic samarium iron nitrogen permanent-magnet powder accounts for: 1 part～3 parts;
Anisotropic neodymium iron nitrogen permanent-magnet powder accounts for: 1 part～3 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110152832.1A CN102360653B (en) | 2011-06-08 | 2011-06-08 | Flexible rare earth bonded magnet with roll anisotropy and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110152832.1A CN102360653B (en) | 2011-06-08 | 2011-06-08 | Flexible rare earth bonded magnet with roll anisotropy and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102360653A CN102360653A (en) | 2012-02-22 |
| CN102360653B true CN102360653B (en) | 2014-08-27 |
Family
ID=45585958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110152832.1A Active CN102360653B (en) | 2011-06-08 | 2011-06-08 | Flexible rare earth bonded magnet with roll anisotropy and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102360653B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895360A (en) * | 2015-10-19 | 2016-08-24 | 东莞市海天磁业股份有限公司 | Preparation method of anisotropic magnet |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103624261B (en) * | 2012-08-20 | 2015-10-14 | 南通万宝实业有限公司 | Different side's neodymium iron boron composite tape and manufacture method thereof and outward rotation type motor and motor and frequency conversion ceiling fan motor and hub dynamo |
| CN102832002B (en) * | 2012-09-13 | 2016-12-21 | 北矿磁材科技股份有限公司 | Environment-friendlyhalogen-free halogen-free rare-earth composite magnetic material |
| CN103280311A (en) * | 2013-06-26 | 2013-09-04 | 沈冬杰 | Method for preparing anisotropic bonded permanent magnet |
| CN103745798B (en) * | 2014-01-09 | 2016-01-20 | 浙江和也健康科技有限公司 | A kind of health-care bedding rare-earth flexible magnetic stripe and preparation method thereof |
| CN103745797B (en) * | 2014-01-09 | 2016-02-24 | 浙江和也健康科技有限公司 | A kind of anisotropic flexible magnetic stripe being applicable to magnetic health |
| CN104599831B (en) * | 2015-01-16 | 2018-05-08 | 浙江和也健康科技有限公司 | The flexible neodymium iron boron magnetic body and its manufacture method of a kind of high spatial energy field |
| CN104599835B (en) * | 2015-01-17 | 2018-01-12 | 浙江和也健康科技有限公司 | A kind of flexible rare-earth cementing neodymium iron boron magnetic body and its manufacture method |
| CN105023686A (en) * | 2015-07-27 | 2015-11-04 | 合肥凯士新材料贸易有限公司 | High-magnetism neodymium-iron-boron bonded permanent magnet containing talc powder |
| CN106816248B (en) * | 2016-12-07 | 2020-11-10 | 麦格昆磁（天津）有限公司 | Mixed rubber magnetic powder and preparation method thereof |
| CN106601463B (en) * | 2016-12-09 | 2018-04-03 | 宁波大榭开发区银鑫磁业有限公司 | A kind of Nd-Fe-B permanent magnet material |
| CN108010651B (en) * | 2017-12-13 | 2020-01-24 | 江西伟普科技有限公司 | Preparation method of multi-magnetic powder mixed bonded magnetic material |
| CN110070985B (en) * | 2018-01-22 | 2022-11-22 | 日亚化学工业株式会社 | Bonded magnet and method for producing mixture for bonded magnet |
| CN109192429B (en) * | 2018-09-13 | 2020-06-16 | 扬州大学 | Neodymium iron boron/ferrite composite flexible magnet and preparation method thereof |
| CN110164643B (en) * | 2019-05-17 | 2021-02-09 | 东阳市麦格电子有限公司 | Organically modified flaky crystal permanent magnetic ferrite powder |
| CN111540561A (en) * | 2020-05-08 | 2020-08-14 | 北矿科技股份有限公司 | High-temperature-resistant flexible bonding permanent magnet for permanent magnet travel limit switch and preparation method thereof |
| CN111667967B (en) * | 2020-07-11 | 2022-12-16 | 北矿科技股份有限公司 | High-fluidity samarium-iron-nitrogen flexible bonded permanent magnet for injection molding and preparation method thereof |
| CN114023551B (en) * | 2021-10-12 | 2023-03-14 | 横店集团东磁股份有限公司 | Anisotropic rubber composite rare earth permanent magnet orientation forming process |
| CN117079961A (en) * | 2023-07-07 | 2023-11-17 | 燕山大学 | Anisotropic Nd 2 Fe 14 Preparation method of B/alpha-Fe block nanocrystalline composite permanent magnet material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1937111A (en) * | 2006-09-19 | 2007-03-28 | 北京大学 | Method for preparing rolling anisotropic magnetic powder and magnet |
| CN1956109A (en) * | 2005-10-25 | 2007-05-02 | 四川大学 | Binding samarium-iron-nitrogen, neodymium-iron-nitrogen, ferrite permanent-magnet powder compound permanent-magnet material and its preparation method |
| CN101477866A (en) * | 2008-09-19 | 2009-07-08 | 广州金南磁塑有限公司 | Anisotropic flexible adhesion Nd-Fe-B magnets and manufacturing method thereof |
| CN101615475A (en) * | 2009-05-08 | 2009-12-30 | 北京科技大学 | A kind of manufacture method of flexible anisotropic bonding rare earth permanent magnet |
| CN101800106A (en) * | 2010-04-07 | 2010-08-11 | 北京科技大学 | Preparation method of flexible anisotropy bonding rare earth permanent magnet material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100437841C (en) * | 2006-09-19 | 2008-11-26 | 北京大学 | Anisotropic rare-earth permanent magnet material and its magnetic powder and magnet mfg. method |
-
2011
- 2011-06-08 CN CN201110152832.1A patent/CN102360653B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1956109A (en) * | 2005-10-25 | 2007-05-02 | 四川大学 | Binding samarium-iron-nitrogen, neodymium-iron-nitrogen, ferrite permanent-magnet powder compound permanent-magnet material and its preparation method |
| CN1937111A (en) * | 2006-09-19 | 2007-03-28 | 北京大学 | Method for preparing rolling anisotropic magnetic powder and magnet |
| CN101477866A (en) * | 2008-09-19 | 2009-07-08 | 广州金南磁塑有限公司 | Anisotropic flexible adhesion Nd-Fe-B magnets and manufacturing method thereof |
| CN101615475A (en) * | 2009-05-08 | 2009-12-30 | 北京科技大学 | A kind of manufacture method of flexible anisotropic bonding rare earth permanent magnet |
| CN101800106A (en) * | 2010-04-07 | 2010-08-11 | 北京科技大学 | Preparation method of flexible anisotropy bonding rare earth permanent magnet material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895360A (en) * | 2015-10-19 | 2016-08-24 | 东莞市海天磁业股份有限公司 | Preparation method of anisotropic magnet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102360653A (en) | 2012-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102360653B (en) | Flexible rare earth bonded magnet with roll anisotropy and manufacturing method thereof | |
| JP3956760B2 (en) | Manufacturing method of flexible magnet and its permanent magnet type motor | |
| CN106349686B (en) | A kind of high-performance polyamide/samarium iron nitrogen magnetic composite and preparation method thereof | |
| CN1285083C (en) | Flexible binding neodymium ferroboron magnet and manufacturing method thereof | |
| CN104945754A (en) | Manufacturing method for improving attraction of rubber extrusion magnetic strip | |
| CN103854820A (en) | Flexible bonded magnet and preparation method thereof | |
| CN102163496B (en) | Preparation method of high performance halogen free environment-friendly extruded magnetic stripe made of rubber&plastic ferrite and magnetic stripe | |
| CN102723165A (en) | Bonded NdFeB (neodymium, ferrum and boron) strong magnet and preparation method thereof | |
| CN102005277A (en) | Stress-field-oriented anisotropic flexible bonded neodymium-iron-boron magnet and preparation method thereof | |
| CN103440955A (en) | Compound agglutinated rear earth permanent magnet and preparation method thereof | |
| CN1937113A (en) | High-temperature flexible rubber bound magnet and preparing method | |
| EP3780351A1 (en) | Electric motor and field element | |
| CN102029394B (en) | Method for preparing high-performance halogen-free environment-friendly rubber-plastic NdFeB (neodymium, iron and boron) extruded magnetic strip and magnetic strip | |
| DE112011100698T5 (en) | Improved magnet rotor device with improved physical strength | |
| CN104217833B (en) | A kind of ageing-resistant wear-resisting bonded Permanet ferrite materialses and preparation method thereof | |
| CN102219983B (en) | Stiffener film substrate combination, preparation method of stiffener film substrate combination, stiffener film and steel plate composite material | |
| CN104505204A (en) | Rubber magnet composite and preparation method thereof | |
| CN104513591A (en) | Medium-and-low temperature cured thinly-coated powder coating for household electrical appliance and preparation method for medium-and-low temperature cured thinly-coated powder coating | |
| CN102610353A (en) | Preparation method of anisotropic flexible magnet with high degree of orientation and high performance | |
| DE102021113180A1 (en) | ANISOTROPIC BOND MAGNET AND PROCESS FOR ITS MANUFACTURING | |
| CN104715880B (en) | A kind of flexibility diskette and its manufacturing method | |
| CN1594209A (en) | Flexible rare-earth bonded magnet and its manufacturing method | |
| CN104893270A (en) | Antistatic polycarbonate (PC)/ acrylonitrile-styrene-acrylic acid copolymer (ASA) alloy plastic and preparation method thereof | |
| CN104761812A (en) | High-strength wear-resistant automobile material | |
| CN105304255A (en) | Neodymium iron boron magnetic material with high magnetic energy and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 100070 Beijing Fengtai District South Fourth Ring West Road 188 18 District 23 Building 4 Floor Patentee after: North Polytron Technologies Inc Address before: 100070 Beijing Fengtai District South Fourth Ring West Road 188 6 District 5 Building Patentee before: Beikuan Magnetic-material Science & Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190725 Address after: 236000 Yingzhou Economic Development Zone, Fuyang City, Anhui Province Patentee after: Beikuang magnetic materials (Fuyang) Co., Ltd. Address before: 100070 Beijing Fengtai District South Fourth Ring West Road 188 18 District 23 Building 4 Floor Patentee before: North Polytron Technologies Inc |