CN109473271A - A kind of magnet orientation compression moulding technique - Google Patents
A kind of magnet orientation compression moulding technique Download PDFInfo
- Publication number
- CN109473271A CN109473271A CN201811324599.9A CN201811324599A CN109473271A CN 109473271 A CN109473271 A CN 109473271A CN 201811324599 A CN201811324599 A CN 201811324599A CN 109473271 A CN109473271 A CN 109473271A
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- Prior art keywords
- magnet
- molten iron
- alloy
- iron
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Classifications
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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
- H01F41/0266—Moulding; Pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/16—Both compacting and sintering in successive or repeated steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Abstract
The invention discloses a kind of magnets to be orientated compression moulding technique, S1, ingredient: aluminium, the pig iron, ferrochrome, manganese iron, ferrosilicon, nickel, cobalt and other trace meters carry out automatic screening, it obtains quality raw materials and surface clean is carried out by supersonic wave cleaning machine, cleaning cooperation forced air drying later dried up；S2, melting ingot: the above raw material is sequentially added in smelting furnace according to a certain percentage and obtains molten iron, when heating by infrared heater by molten iron temperature, and reaching 2000-2350 DEG C, carburant is added into molten iron, by molten iron smelting at alloy；S3, powder processed: the alloy of above-mentioned smelting in the state of cryogenic freezing, is crushed alloy using automatic crusher.Compared with other extractive techniques, process flow is simple, changes the magnet structure of material; so that magnetic material effect is more preferable; guarantee magnet surface robustness, carry out powder processed by using cryogenic freezing mode, in the case where cryogenic temperature can effective protection magnet internal structure do not destroyed.
Description
Technical field
The present invention relates to technical field of magnetic materials, and more specifically more particularly to a kind of magnet is orientated compression moulding work
Skill.
Background technique
Magnet is the substance or material for referring to generate magnetic field.It is a kind of peculiar substance, it has a kind of invisible power, both
Some substances can be attracted, and some substances can be repelled.It is generally divided into permanent magnet and soft magnetic bodies, magnet has bipolarity, magnetic north
Pole N, magnetic south S are still the two poles of the earth N grades, the pole S after chopping off.Single magnetic pole cannot exist.Meanwhile magnet has directive property, if
One magnet is hung up, it finds that geographical south magnetic pole or so is directed toward in its South Pole, geographical north magnetic pole or so is directed toward in the arctic.
Wherein magnet structure occupies this important impact position to the using effect and performance of magnetic material, but existing magnetic material
Manufacturing process make magnet structure itself comparatively poor, be difficult to realize compacting, wastage of material is in turn resulted in, in powder mistake processed
Cheng Zhong, typically directly using mechanical crushing, it is easy to so that magnet structure interior molecules are damaged, and then influence processing matter
Amount, for this purpose, it is proposed that a kind of magnet is orientated compression moulding technique.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of magnet orientation proposed is pressed into
Type technique, process flow is simple, changes the magnet structure of material, so that magnetic material effect is more preferable, guarantees that magnet surface is firm
Property, carries out powder processed by using cryogenic freezing mode, in the case where cryogenic temperature can effective protection magnet internal structure not
It is destroyed.
To achieve the above object, the invention provides the following technical scheme: a kind of magnet is orientated compression moulding technique, including such as
Lower step:
S1, ingredient: aluminium, the pig iron, ferrochrome, manganese iron, ferrosilicon, nickel, cobalt and other trace meters carry out automatic screening, obtain high-quality original
Expect and surface clean is carried out by supersonic wave cleaning machine, cleaning cooperation forced air drying later dried up；
S2, melting ingot: the above raw material is sequentially added in smelting furnace according to a certain percentage and obtains molten iron, passes through infrared heating
Device heats molten iron temperature, and when reaching 2000-2350 DEG C, carburant is added into molten iron, by molten iron smelting at alloy；
S3, powder processed: the alloy of above-mentioned smelting in the state of cryogenic freezing, is crushed alloy using automatic crusher,
It is filtered after crushing using filter screen, filter screen diameter is 5-10um, obtains fine and smooth powdered alloyed powder；
S4, die mould: applying in fever pipe surface in die mould and add alloy powder, and the pipe dish that will generate heat is at recessed corresponding out with mold
Shape is put into mold, while accessing a certain amount of forming agent, and is suppressed by heating pressing plate；
S5, sintering tempering: being delivered to inside sintering furnace after compacting, while being arranged sintering furnace inner air using vacuum evacuation pump
Out, the model after die casting is placed and carries out Quench heating inside sintering furnace, and gradually increase sintering furnace internal temperature；
S6, magnetic detection: passing through above-mentioned operation, after magnet is formed, places in magnetic detector, is detected, to guarantee magnet
Quality；
S7, mill processing: the magnet after qualified is then ground magnet surface using emery wheel height, in combination with adsorbing powder dust
The scrap generated in grinding process is purged by machine, wherein emery wheel velocity of rotation be 30~45 meter per seconds, precision up to IT8~
5 or more, surface roughness general grinding is that accurate grinding is Ra0.16~0.04 micron；
S8, plating: into after overground processing, magnet uniformly being placed in electroplating bath, molten being electroplated in conjunction with the effect of extraneous direct current
Cell reaction is carried out in liquid, and electric conductor such as metallic surface is made to deposit a metal or alloy layer；
S9, finished product: passing through the above manufacturing procedure, and finished product needed for completing magnet carries out automatic class wrapping by vacuum packing machine；
Preferably, it in pulverizing process, is put into cooling device, is cooled down using stairway degression method, the low temperature temperature when crushing
Degree is (- 4 DEG C)-(- 10 DEG C).
Preferably, 0.6 gram of aluminium, 0.3 gram of the pig iron, ferrochrome 0.7 are added in melting constantly 10000 grams of molten iron every by weight
Gram, 0.7 gram of ferrosilicon 0.2,0.4 gram of manganese iron, 0.2 gram of nickel, cobalt metal material and 0.5 trace meter make according to the proportion.
Preferably, the electrolysis unit being made of electroplate liquid, part to be plated (cathode) and anode is electroplated.
Technical effect and advantage of the invention:
1, it by the way that various iron, alloy and microelement are added in ingredient, is added to using microelement as interstitial atom
Wherein, using the magneto volume effect of microelement and chemical bonding effect, the electronic band structure very crystal field for changing iron compound is made
With changing the magnet structure of material, so that magnetic material effect is more preferable.
2, powder processed is carried out by using cryogenic freezing mode, it can be inside effective protection magnet in the case where cryogenic temperature
Structure is not destroyed.
3, by utilizing vacuum-sintering, magnet molding effect can be effectively increased, magnet surface solidness is improved.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Every other embodiment obtained is put, shall fall within the protection scope of the present invention.
Embodiment
A kind of magnet orientation compression moulding technique, includes the following steps:
S1, ingredient: aluminium, the pig iron, ferrochrome, manganese iron, ferrosilicon, nickel, cobalt and other trace meters carry out automatic screening, obtain high-quality original
Expect and surface clean is carried out by supersonic wave cleaning machine, cleaning cooperation forced air drying later dried up；
S2, melting ingot: the above raw material is sequentially added in smelting furnace according to a certain percentage and obtains molten iron, passes through infrared heating
Device heats molten iron temperature, and when reaching 2000-2350 DEG C, carburant is added into molten iron, by molten iron smelting at alloy；
S3, powder processed: the alloy of above-mentioned smelting in the state of cryogenic freezing, is crushed alloy using automatic crusher,
It is filtered after crushing using filter screen, filter screen diameter is 5-10um, obtains fine and smooth powdered alloyed powder；
S4, die mould: applying in fever pipe surface in die mould and add alloy powder, and the pipe dish that will generate heat is at recessed corresponding out with mold
Shape is put into mold, while accessing a certain amount of forming agent, and is suppressed by heating pressing plate；
S5, sintering tempering: being delivered to inside sintering furnace after compacting, while being arranged sintering furnace inner air using vacuum evacuation pump
Out, the model after die casting is placed and carries out Quench heating inside sintering furnace, and gradually increase sintering furnace internal temperature；
S6, magnetic detection: passing through above-mentioned operation, after magnet is formed, places in magnetic detector, is detected, to guarantee magnet
Quality；
S7, mill processing: the magnet after qualified is then ground magnet surface using emery wheel height, in combination with adsorbing powder dust
The scrap generated in grinding process is purged by machine, wherein emery wheel velocity of rotation be 30~45 meter per seconds, precision up to IT8~
5 or more, surface roughness general grinding is that accurate grinding is Ra0.16~0.04 micron；
S8, plating: into after overground processing, magnet uniformly being placed in electroplating bath, molten being electroplated in conjunction with the effect of extraneous direct current
Cell reaction is carried out in liquid, and electric conductor such as metallic surface is made to deposit a metal or alloy layer；
S9, finished product: passing through the above manufacturing procedure, and finished product needed for completing magnet carries out automatic class wrapping by vacuum packing machine；
Preferably, it in pulverizing process, is put into cooling device, is cooled down using stairway degression method, the low temperature temperature when crushing
Degree is (- 4 DEG C)-(- 10 DEG C).
Preferably, 0.6 gram of aluminium, 0.3 gram of the pig iron, ferrochrome 0.7 are added in melting constantly 10000 grams of molten iron every by weight
Gram, 0.7 gram of ferrosilicon 0.2,0.4 gram of manganese iron, 0.2 gram of nickel, cobalt metal material and 0.5 trace meter make according to the proportion.
Preferably, the electrolysis unit being made of electroplate liquid, part to be plated (cathode) and anode is electroplated.
In summary: a kind of magnet orientation compression moulding technique provided by the invention is pressed into traditional magnet orientation
Type technique is compared, and by the way that various iron, alloy and microelement are added in ingredient, is added using microelement as interstitial atom
Enter to wherein, using the magneto volume effect and chemical bonding effect of microelement, the electronic band structure for changing iron compound is very brilliant
Field action changes the magnet structure of material, so that magnetic material effect is more preferable.Powder processed is carried out by using cryogenic freezing mode,
In the case where cryogenic temperature can effective protection magnet internal structure do not destroyed, by utilize vacuum-sintering, Neng Gouyou
Effect increases magnet molding effect, improves magnet surface solidness.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (4)
1. a kind of magnet is orientated compression moulding technique, characterized by the following steps:
S1, ingredient: aluminium, the pig iron, ferrochrome, manganese iron, ferrosilicon, nickel, cobalt and other trace meters carry out automatic screening, obtain high-quality original
Expect and surface clean is carried out by supersonic wave cleaning machine, cleaning cooperation forced air drying later dried up；
S2, melting ingot: the above raw material is sequentially added in smelting furnace according to a certain percentage and obtains molten iron, passes through infrared heating
Device heats molten iron temperature, and when reaching 2000-2350 DEG C, carburant is added into molten iron, by molten iron smelting at alloy；
S3, powder processed: the alloy of above-mentioned smelting in the state of cryogenic freezing, is crushed alloy using automatic crusher,
It is filtered after crushing using filter screen, filter screen diameter is 5-10um, obtains fine and smooth powdered alloyed powder；
S4, die mould: applying in fever pipe surface in die mould and add alloy powder, and the pipe dish that will generate heat is at recessed corresponding out with mold
Shape is put into mold, while accessing a certain amount of forming agent, and is suppressed by heating pressing plate；
S5, sintering tempering: being delivered to inside sintering furnace after compacting, while being arranged sintering furnace inner air using vacuum evacuation pump
Out, the model after die casting is placed and carries out Quench heating inside sintering furnace, and gradually increase sintering furnace internal temperature；
S6, magnetic detection: passing through above-mentioned operation, after magnet is formed, places in magnetic detector, is detected, to guarantee magnet
Quality；
S7, mill processing: the magnet after qualified is then ground magnet surface using emery wheel height, in combination with adsorbing powder dust
The scrap generated in grinding process is purged by machine, wherein emery wheel velocity of rotation be 30~45 meter per seconds, precision up to IT8~
5 or more, surface roughness general grinding is that accurate grinding is Ra0.16~0.04 micron；
S8, plating: into after overground processing, magnet uniformly being placed in electroplating bath, molten being electroplated in conjunction with the effect of extraneous direct current
Cell reaction is carried out in liquid, and electric conductor such as metallic surface is made to deposit a metal or alloy layer；
S9, finished product: passing through the above manufacturing procedure, and finished product needed for completing magnet carries out automatic class wrapping by vacuum packing machine.
2. a kind of magnet according to claim 1 is orientated compression moulding technique, it is characterised in that: in pulverizing process, put
Enter in cooling device, cooled down using stairway degression method, cryogenic temperature is (- 4 DEG C)-(- 10 DEG C) when crushing.
3. a kind of magnet according to claim 1 is orientated compression moulding technique, it is characterised in that: melting constantly by weight
Count addition 0.6 gram of aluminium, 0.3 gram of the pig iron, 0.7 gram of ferrochrome, ferrosilicon 0.2,0.4 gram of manganese iron, 0.2 gram of nickel, cobalt in every 10000 grams of molten iron
0.7 gram of metal material and 0.5 trace meter make according to the proportion.
4. a kind of magnet according to claim 1 is orientated compression moulding technique, it is characterised in that: plating by electroplate liquid, to
Plate the electrolysis unit that part (cathode) and anode are constituted.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811324599.9A CN109473271A (en) | 2018-11-08 | 2018-11-08 | A kind of magnet orientation compression moulding technique |
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|---|---|---|---|
| CN201811324599.9A CN109473271A (en) | 2018-11-08 | 2018-11-08 | A kind of magnet orientation compression moulding technique |
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| CN109473271A true CN109473271A (en) | 2019-03-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112372380A (en) * | 2020-11-16 | 2021-02-19 | 广东桂荣永磁新材料科技有限公司 | Surface treatment process for strong magnetic production |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871704A (en) * | 2014-03-04 | 2014-06-18 | 南京信息工程大学 | Praseodymium iron nitrogen phosphorus permanent magnet material and preparing method thereof |
| CN104319046A (en) * | 2014-10-11 | 2015-01-28 | 宁波科星材料科技有限公司 | Samarium cobalt permanent magnet material |
| CN104599829A (en) * | 2015-01-05 | 2015-05-06 | 宁波韵升股份有限公司 | Method for improving magnetic property of sintered NdFeB magnet |
| CN105489368A (en) * | 2015-12-28 | 2016-04-13 | 徐力 | Preparation method of neodymium-iron-boron permanent magnet |
| CN105612594A (en) * | 2013-10-10 | 2016-05-25 | 大众汽车有限公司 | Method for producing a permanent magnet and permanent magnet and electric machine having such a permanent magnet |
| CN106796838A (en) * | 2014-09-02 | 2017-05-31 | 东北大学 | The permanent-magnet material without rare earth based on Fe Ni |
| CN107396631A (en) * | 2015-01-26 | 2017-11-24 | 明尼苏达大学董事会 | Iron-nitride powder with Anisotropic shapes |
| CN107475631A (en) * | 2017-05-24 | 2017-12-15 | 安徽省瀚海新材料股份有限公司 | A kind of sintered NdFeB pressed compact processing method |
-
2018
- 2018-11-08 CN CN201811324599.9A patent/CN109473271A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105612594A (en) * | 2013-10-10 | 2016-05-25 | 大众汽车有限公司 | Method for producing a permanent magnet and permanent magnet and electric machine having such a permanent magnet |
| CN103871704A (en) * | 2014-03-04 | 2014-06-18 | 南京信息工程大学 | Praseodymium iron nitrogen phosphorus permanent magnet material and preparing method thereof |
| CN106796838A (en) * | 2014-09-02 | 2017-05-31 | 东北大学 | The permanent-magnet material without rare earth based on Fe Ni |
| CN104319046A (en) * | 2014-10-11 | 2015-01-28 | 宁波科星材料科技有限公司 | Samarium cobalt permanent magnet material |
| CN104599829A (en) * | 2015-01-05 | 2015-05-06 | 宁波韵升股份有限公司 | Method for improving magnetic property of sintered NdFeB magnet |
| CN107396631A (en) * | 2015-01-26 | 2017-11-24 | 明尼苏达大学董事会 | Iron-nitride powder with Anisotropic shapes |
| CN105489368A (en) * | 2015-12-28 | 2016-04-13 | 徐力 | Preparation method of neodymium-iron-boron permanent magnet |
| CN107475631A (en) * | 2017-05-24 | 2017-12-15 | 安徽省瀚海新材料股份有限公司 | A kind of sintered NdFeB pressed compact processing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112372380A (en) * | 2020-11-16 | 2021-02-19 | 广东桂荣永磁新材料科技有限公司 | Surface treatment process for strong magnetic production |
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Application publication date: 20190315 |