CN107134359A - The processing method of sintered NdFeB - Google Patents
The processing method of sintered NdFeB Download PDFInfo
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- CN107134359A CN107134359A CN201710317532.1A CN201710317532A CN107134359A CN 107134359 A CN107134359 A CN 107134359A CN 201710317532 A CN201710317532 A CN 201710317532A CN 107134359 A CN107134359 A CN 107134359A
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- sintered ndfeb
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- stereochemical structure
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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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
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- Crushing And Grinding (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention discloses a kind of processing method of sintered NdFeB, including：Step 1: by multiple sintered NdFeB blank assembled arrangements into a stereochemical structure, two end faces to be processed of each sintered NdFeB blank are made to form parallel to each other two end face of the stereochemical structure respectively, blend compounds stick agent and multiple sintered NdFeB blanks bond together；Step 2: carrying out slicing treatment to the stereochemical structure along the direction of the end face parallel to the stereochemical structure, multiple plate bodys are obtained；Step 3: the both side surface to each plate body carries out mill working process；Step 4: carrying out boiling glue processing to the plate body through overground working process, so that each plate body is dispersed into multiple sintered NdFeB lamellar bodies.The present invention improves the efficiency that processing is ground to sintered NdFeB, optimizes the end face plane degree after mill processing and improves the uniformity of thickness direction size, it is ensured that while product processing quality, processing cost is also reduced indirectly.
Description
Technical field
The present invention relates to the process technology of magnetic material, more particularly to a kind of processing method of sintered NdFeB.
Background technology
Nd-Fe-B permanent magnet material is readily processible to because having the excellent specific property of high remanent magnetism, high-coercive force, high energy product
Variously-shaped, specification magnet, therefore it is widely used in electroacoustic telecommunication, motor, instrument, nuclear magnetic resonance, magnetic suspension and magnetic seal
Deng the device and equipment of permanent-magnetic field, it is particularly suitable for use in manufacturing various high-performance, complex-shaped product.
The technological process of production of sintered NdFeB includes：The steps such as dispensing, ingot casting, hydrogen is quick-fried, milling, shaping and sintering, from
And obtain the magnetic material blank with certain magnetic property.The processing of so sintered NdFeB is exactly by various by this blank
Mill is processed, cuts the process that finished product is made after the technique such as processing and surface treatment.It is certain that mill processing can obtain workpiece grinding surface
Roughness, flatness etc., are surface-treated beneficial to rear road, also ensure that the exterior quality of workpiece.And in high-volume consecutive production
Under the situation of pattern, the processing of penetration type double-end surface milling is widely used among industry already.As Nd-Fe-B permanent magnetic product is got over
Come more very popular, in face of rising steadily for huge market and the cost of raw material, the processing of sintered NdFeB must suddenly be carried
The efficiency of processing is risen, so as to alleviate production pressure, reduction processing cost.
In the prior art, the processing process of sintered NdFeB is when through overground processing, it will usually will cut after processing
Oil sheet boil after glue deoils into discrete piece, mill processing is then carried out again, for large-size workpiece, boiling the discrete piece after glue can be with
Use one by one is ground by formula double-ended grinding machine and processed, then the workpiece of small dimension, discrete piece state is difficult to high efficiency, height
The progress of quality machined by formula double-end grinding grinding machine mill.
Therefore, how high efficiency, the processing of high-quality completion sintered NdFeB meets large batch of production requirement, is this
Invent problem place to be solved.
The content of the invention
For above-mentioned technical problem, the invention provides a kind of processing method of sintered NdFeB, it can improve sintering
The processing efficiency of neodymium iron boron, while ensureing crudy, and then reduces processing cost indirectly.
The technical scheme that the present invention is provided is：
A kind of processing method of sintered NdFeB, including：
Step 1: by multiple sintered NdFeB blank assembled arrangements into a stereochemical structure, making each sintered NdFeB hair
Two end faces to be processed of base form parallel to each other two end face of the stereochemical structure respectively, and blend compounds stick agent and burnt multiple
Knot neodymium iron boron blank bonds together；
Step 2: slicing treatment is carried out to the stereochemical structure along the direction of the end face parallel to the stereochemical structure,
Obtain multiple plate bodys；
Step 3: the both side surface to each plate body carries out mill working process；
Step 4: carrying out boiling glue processing to the plate body through overground working process, so that each plate body is dispersed into multiple burnings
Tie neodymium iron boron lamellar body.
Preferably, in the processing method of described sintered NdFeB, the adhesive is 502 glue.
Preferably, in the processing method of described sintered NdFeB, in the step 3, both-end is carried out to each plate body
Face mill processing.
Preferably, in the processing method of described sintered NdFeB, in the step 3, using Horizontal paralled surface grinding machine
Double-end surface milling processing is carried out, processing mode is that penetration type grinds processing.
Preferably, in the processing method of described sintered NdFeB, in the step one, the sintered NdFeB blank
For cylindrical blank, by multiple sintered NdFeB blank assembled arrangements into a stereochemical structure, its detailed process is：
If multiple sintered NdFeB blanks point dried layer is placed, to form a pyramidal stereochemical structure.
Preferably, in the processing method of described sintered NdFeB, in the step one, the sintered NdFeB blank
For cuboid blank, the stereochemical structure is cuboid.
Preferably, in the processing method of described sintered NdFeB, in the step one, by multiple sintered NdFeBs
Blank assembled arrangement also carries out skin processing into before a stereochemical structure to the outer peripheral face of the sintered NdFeB blank.
Preferably, in the processing method of described sintered NdFeB, in the step 2, using inner circle automatic clinical microtome
Slicing treatment is carried out to the stereochemical structure.
Preferably, it is described to boil glue processing use in the step 4 in the processing method of described sintered NdFeB
100 DEG C of the glue that boils soaks.
The processing method of sintered NdFeB of the present invention is respectively provided with sizing, cuts into slices, is ground and boils four works of glue
Sequence, is contained from sintered NdFeB semi-finished product blank to the process for being processed into semi-finished product small pieces.In this process, cutting is completed
The sintered NdFeB semi-finished product small pieces into tabular carry out end face mill processing afterwards, make some sintered NdFeB semi-finished product small pieces of a plate
Simultaneously by grinding, so that the mill processing of the sintered NdFeB semi-finished product small pieces of a plate instead of after discrete piece another one
Mill processing is carried out, mill process time had so both been shortened, while ensure that the end face of the sintered NdFeB semi-finished product small pieces of a plate
The uniformity of quality.In the processing method for the sintered NdFeB that the present invention is provided, due to above-mentioned sizing, glue is cut into slices, is ground and boiled
Whole process, it is very ripe in the processing technique field of existing industry, and in the process with the mill processing side of whole plate
The single mill processing of formula substitution discrete piece so that small dimension product is realized and processed by formula double-end surface milling, also improves the effect of mill processing
Rate, it is ensured that while product processing quality, also reduces processing cost indirectly.
Brief description of the drawings
Fig. 1 for sintered NdFeB of the present invention processing method in embodiment one process figure；
Fig. 2 for the stereochemical structure in the processing method of sintered NdFeB of the present invention in embodiment two schematic diagram；
Fig. 3 for the stereochemical structure in the processing method of sintered NdFeB of the present invention in embodiment three schematic diagram；
Fig. 4 for the stereochemical structure in the processing method of sintered NdFeB of the present invention in example IV schematic diagram.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
As shown in figure 1, the present invention provides a kind of processing method of sintered NdFeB, including：
Step 1: by multiple sintered NdFeB blank assembled arrangements into a stereochemical structure, making each sintered NdFeB hair
Two end faces to be processed of base form parallel to each other two end face of the stereochemical structure respectively, and blend compounds stick agent and burnt multiple
Knot neodymium iron boron blank bonds together；
Step 2: slicing treatment is carried out to the stereochemical structure along the direction of the end face parallel to the stereochemical structure,
Obtain multiple plate bodys；
Step 3: the both side surface to each plate body carries out mill working process；
Step 4: carrying out boiling glue processing to the plate body through overground working process, so that each plate body is dispersed into multiple burnings
Tie neodymium iron boron lamellar body.
As shown in figure 1, the processing method for the sintered NdFeB that the present invention is provided includes sizing, cuts into slices, is ground and boils glue work
Sequence.
In the processing method for the sintered NdFeB that the present embodiment is provided, by cylinder blank, (cylinder is cylindrical by not being in the mood for polishing
Face is processed) assembled arrangement and bonded using 502 glue, then enter line cutting processing, Double End using inside diameter slicer
Grinding machine carries out mill processing, is finally to carry out boiling glue processing.
In the processing method for the sintered NdFeB that the present embodiment is provided, due to above-mentioned sizing, the whole of glue is cut into slices, is ground and boiled
Individual process, it is very ripe in the processing technique field of existing industry, and taken in the process with the mill processing mode of whole plate
For the single mill processing of discrete piece so that small dimension product is realized and processed by formula double-end surface milling, also improves the efficiency of mill processing, excellent
Changed the end face plane degree after mill processing and improved the uniformity of thickness direction size, it is ensured that product processing quality it is same
When, processing cost is also reduced indirectly.
When being bonded using 502 glue, it is necessary to ensure that glue can pour into the face that blank contacts with each other during sizing,
Make mutually to bond fastening between blank, it is not in come unglued to cause postorder to cut processing, realizes that whole plate is ground while more ensure that.
In the present embodiment, 502 glue used are as bonding agent, and other equal function bonding agents can also be applied；Combination
The mode of arrangement is not fixed unique, but must assure that postorder is cut when processing, mill are processed and occur without phenomenon of coming unglued.
In a preferred embodiment, in the processing method of described sintered NdFeB, the adhesive is 502 glue
Water.
In a preferred embodiment, in the processing method of described sintered NdFeB, in the step 3, to each
Plate body carries out double-end surface milling processing.
In a preferred embodiment, in the processing method of described sintered NdFeB, in the step 3, using sleeping
Formula double-ended grinding machine carries out double-end surface milling processing, and processing mode is that penetration type grinds processing.Fig. 1 is refer to, in Horizontal dual-end face mill
On bed, plate body is entered between upper conductor 2 and lower conductor 3, is advanced in the presence of upper conductor and lower conductor, both sides emery wheel 1 is then
Both side surface to plate body carries out mill processing, and cooler pan 4 is cooled down.After overground processing, boiled into boiling in glue groove 5
Glue.
In a preferred embodiment, it is described to burn in the step one in the processing method of described sintered NdFeB
It is cylindrical blank to tie neodymium iron boron blank, by multiple sintered NdFeB blank assembled arrangements into a stereochemical structure, its specific mistake
Cheng Wei：If multiple sintered NdFeB blanks point dried layer is placed, to form a pyramidal stereochemical structure.Specifically, with
, can be two layers by 6 points of 5 sintered NdFeB blanks when having 5 sintered NdFeB blanks in case of shown in Fig. 1
Place, 3 sintered NdFeB blanks are placed by lower floor, and 2 sintered NdFeB blanks are placed on upper strata, so as to form a pyramid
Stereochemical structure 7.The placed number of plies and every layer of number placed can be adjusted according to the diameter of sintered NdFeB blank, with
Stacking forms pyramidal stereochemical structure, and ensures that the sintered NdFeB blank in stereochemical structure can be bonded by adhesive
Firmly.
In a preferred embodiment, it is described to burn in the step one in the processing method of described sintered NdFeB
It is cuboid blank to tie neodymium iron boron blank, and the stereochemical structure is cuboid.
As shown in Figures 2 to 4, when blank be cuboid when, when being combined arrangement, using head and the tail staggeredly etc. fancy arrange
Row, make between blank and mutual secure bond between layers.
In a preferred embodiment, will be many in the step one in the processing method of described sintered NdFeB
Individual sintered NdFeB blank assembled arrangement is also carried out into before a stereochemical structure to the outer peripheral face of the sintered NdFeB blank
Skin processing.
Sintered NdFeB blank can have any shape blank.The sintered NdFeB blank that the present embodiment is provided is cylinder
Blank, before sizing is carried out, cylindrical blank must be finished to foreign round, make up to certain finish, then carried out
Assembled arrangement, cylindrical blank stacks (refer to Fig. 1) by pyramid configuration during assembled arrangement, is so using 502 glue
It can ensure when bonding between blank post and bond tightness between layers.The operation is equally applicable to the burning of other shapes
Tie neodymium iron boron blank.
In a preferred embodiment, in the processing method of described sintered NdFeB, in the step 2, using interior
Circle automatic clinical microtome carries out slicing treatment to the stereochemical structure.
Specifically, blank is after bonding, cut using inner circle automatic clinical microtome, according to inside diameter slicer in itself
Cutting power is limited, the assembled arrangement before sizing can suffer restraints, and otherwise assembled arrangement can not carry out inner circle cutting too much, cut
Blank after cutting connects into a plate between piece and piece into certain thickness small pieces by glue bonding, to make small pieces end face have one
Fixed finish, flatness or the depth of parallelism, it will usually reuse double-ended grinding machine to end face carry out mill processing, then after cutting into
The small pieces of the plate of one plate one directly grind processing using by formula double-ended grinding machine, realize high-volume, successional production, finally enter again
Row boils glue operation, removes glue and surface and oil contaminant etc..
In a preferred embodiment, it is described to boil in the step 4 in the processing method of described sintered NdFeB
Glue processing is soaked using 100 DEG C of the glue that boils.It can be that water or alkali lye etc. can dissolve the molten of adhesive to boil glue
Liquid.
In a preferred embodiment, the detailed process of the processing method of sintered NdFeB is：
Sintered NdFeB semi-finished product blank block is combined arrangement, and the material block after assembled arrangement is carried out using 502 glue
Bond, it is cut using inner circle automatic clinical microtome after bonding, the material block slabbing after cutting is connected into by glue bonding
One plate, reuses and carries out mill processing by formula double-ended grinding machine, the sheet sintered NdFeB end face in whole plate is had certain light
Cleanliness, flatness or the depth of parallelism, finally reuse 100 DEG C of hot water or boil glue and cleared up the greasy dirt for remaining glue and attachment
Remove.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the legend with description.
Claims (9)
1. a kind of processing method of sintered NdFeB, it is characterised in that including：
Step 1: multiple sintered NdFeB blank assembled arrangements are made into each sintered NdFeB blank into a stereochemical structure
Two end faces to be processed form parallel to each other two end face of the stereochemical structure respectively, and blend compounds stick agent by multiple sintering neodymiums
Iron boron blank bonds together；
Step 2: carrying out slicing treatment to the stereochemical structure along the direction of the end face parallel to the stereochemical structure, obtain
Multiple plate bodys；
Step 3: the both side surface to each plate body carries out mill working process；
Step 4: carrying out boiling glue processing to the plate body through overground working process, so that each plate body is dispersed into multiple sintering neodymiums
Iron boron lamellar body.
2. the processing method of sintered NdFeB as claimed in claim 1, it is characterised in that the adhesive is 502 glue.
3. the processing method of sintered NdFeB as claimed in claim 1, it is characterised in that in the step 3, to each plate
Body carries out double-end surface milling processing.
4. the processing method of sintered NdFeB as claimed in claim 3, it is characterised in that in the step 3, using horizontal
Double-ended grinding machine carries out double-end surface milling processing, and processing mode is that penetration type grinds processing.
5. the processing method of sintered NdFeB as claimed in claim 1, it is characterised in that in the step one, the sintering
Neodymium iron boron blank is cylindrical blank, by multiple sintered NdFeB blank assembled arrangements into a stereochemical structure, its detailed process
For：
If multiple sintered NdFeB blanks point dried layer is placed, to form a pyramidal stereochemical structure.
6. the processing method of sintered NdFeB as claimed in claim 1, it is characterised in that in the step one, the sintering
Neodymium iron boron blank is cuboid blank, and the stereochemical structure is cuboid.
7. the processing method of sintered NdFeB as claimed in claim 1, it is characterised in that in the step one, will be multiple
Sintered NdFeB blank assembled arrangement also carries out light into before a stereochemical structure to the outer peripheral face of the sintered NdFeB blank
Whole processing.
8. the processing method of sintered NdFeB as claimed in claim 1, it is characterised in that in the step 2, using inner circle
Automatic clinical microtome carries out slicing treatment to the stereochemical structure.
9. the processing method of sintered NdFeB as claimed in claim 1, it is characterised in that described to boil glue in the step 4
Processing is soaked using 100 DEG C of the glue that boils.
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Cited By (2)
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| CN108335817A (en) * | 2018-03-30 | 2018-07-27 | 廊坊京磁精密材料有限公司 | The processing method of sintered NdFeB |
| CN115537826A (en) * | 2022-09-23 | 2022-12-30 | 安徽省瀚海新材料股份有限公司 | Neodymium iron boron multi-wire boiling material anti-oxidation method |
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