CN204946632U - A kind of compound half-hard magnetic material - Google Patents
A kind of compound half-hard magnetic material Download PDFInfo
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- CN204946632U CN204946632U CN201520717005.6U CN201520717005U CN204946632U CN 204946632 U CN204946632 U CN 204946632U CN 201520717005 U CN201520717005 U CN 201520717005U CN 204946632 U CN204946632 U CN 204946632U
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- hard magnetic
- oxidation layer
- compound half
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Abstract
The utility model relates to a kind of compound half-hard magnetic material, and it comprises the basic unit be made up of half-hard magnetic material, and the outer surface of described basic unit is coated with anti oxidation layer and insulating barrier, and described anti oxidation layer is between described basic unit and described insulating barrier.Compound half-hard magnetic material of the present utility model has the performance of anti-oxidant, diamagnetic suction.
Description
Technical field
The utility model relates to a kind of compound half-hard magnetic material, is specifically related to a kind of compound half-hard magnetic material of anti-oxidant, diamagnetic suction.
Background technology
Bias slice is the critical component of sound Magnetic Sensor, and bias slice material can be divided into Hard Magnetic (H
c> 125Oe), semi-hard magnet (12.5Oe < H
c< 125Oe) and magnetically soft alloy (H
c< 12.5Oe).Half-hard magnetic material is as bias slice material most widely used of sound Magnetic Sensor.
Research and development and the production of half-hard magnetic material mainly experienced by twice change, and be the eighties in 20th century for the first time, half-hard magnetic material at that time mainly forms with the manufacture of rolled metal material, with low cost, and performance is relatively unstable; Second time is the nineties in 20th century, and main rolled metal material after-baking manufacture forms, stable performance, and the volume reducing eraser system.But the shortcoming of simple metal non-composite half-hard magnetic material is also apparent, comprising: produce burr in (1) manufacturing process, easy adhesion in stacking, causes pause and the fault of production line; (2) the magnetic effect between semi-hard magnet magnetic sheet is obvious, easily causes double-layer paster time stacking, and interference normal procedure, causes production efficiency to reduce; (3) the magnetic effect and between amorphous resonance plate is obvious, causes manufacturing single cavity amorphous sound Magnetic Sensor; (4) material is easily oxidized, and affects sound Magnetic Sensor performance and stability.
Utility model content
The compound half-hard magnetic material that the purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art part and provides a kind of anti-oxidant, diamagnetic suction.
For achieving the above object, the technical scheme that the utility model is taked is: a kind of compound half-hard magnetic material, it comprises the basic unit be made up of half-hard magnetic material, and the outer surface of described basic unit is coated with anti oxidation layer and insulating barrier, and described anti oxidation layer is between described basic unit and described insulating barrier.
The utility model, at half-hard magnetic material Surface coating anti oxidation layer, improves the oxidation resistance of material self greatly, guarantees that final sound Magnetic Sensor also can keep the stability of semi-hard magnet state under the most harsh environment; Insulation processing is carried out to the half-hard magnetic material being coated with anti oxidation layer, effectively reduces between semi-hard magnet and semi-hard magnet, magnetic attraction that semi-hard magnet produces time adjacent with amorphous resonance plate.
As the preferred implementation of compound half-hard magnetic material described in the utility model, described half-hard magnetic material is Fe-Ni-Al alloy or Fe-Ni-Al-Ti alloy.
As the more preferably execution mode of compound half-hard magnetic material described in the utility model, described half-hard magnetic material is by Fe
ani
bal
cti
dalloying component is formed; Wherein, a, b, c, d are atomic percent, and excursion is: 10≤b≤20,1≤c≤2,0≤d≤1, a=100-b-c-d.
As the preferred implementation of compound half-hard magnetic material described in the utility model, described anti oxidation layer is phosphate coating, and described insulating barrier is organic coating.
As the more preferably execution mode of compound half-hard magnetic material described in the utility model, described phosphate coating is made up of following at least one Phosphating Solution: calcium series phosphatating liquid, Zinc phosphating solution, manganese phosphating liquor, barium based phosphatization liquid and aluminium based phosphatization liquid; Described organic coating is made up of epoxy resin varnish, polyurethane finish, phenolic resins or mylar.
As the preferred implementation of compound half-hard magnetic material described in the utility model, the pH value of described Phosphating Solution is 2 ~ 3.
As the preferred implementation of compound half-hard magnetic material described in the utility model, the thickness of described anti oxidation layer is 1 ~ 10 μm, and the thickness of described insulating barrier is 5 ~ 15 μm.More preferably, the thickness of described anti oxidation layer is 1 ~ 5 μm, and the thickness of described insulating barrier is 5 ~ 10 μm.
The preparation method of compound half-hard magnetic material described in the utility model comprises the following steps:
(1) foundry alloy melting: adopt vacuum melting method to smelt, alloying component is put into crucible, and being heated to temperature is 1450 ~ 1650 DEG C, refining 10 ~ 20min after described alloying component fusing, cast becomes steel ingot;
(2) hot rolling slave board material: the steel ingot that step (1) is obtained carries out hot rolling, obtains the sheet material that thickness is 5 ~ 10mm;
(3) cold rolling is for band: sheet material step (2) obtained is heat-treated at the temperature of 800 ~ 1000 DEG C, and cold rolling one-tenth thickness is the band of 0.045 ~ 0.055mm;
(4) band heat treatment: the band that step (3) obtains is carried out vacuum heat, heat treatment temperature is 550 ~ 600 DEG C, and the time is 30 ~ 60min;
(5) band anti-oxidant treatment: adopt continuous coating machine to carry out continuous impregnating process in step (4) through heat treated band, make the outer surface through heat treated band in step (4) be coated with anti oxidation layer, then wash, dry;
(6) insulation processing: be coated with the outer surface galvanic insulation layer of band of anti oxidation layer.
In above-mentioned preparation method, after step (4) heat treatment, the band of gained is the half-hard magnetic material forming basic unit; After step (6) insulation processing, anti oxidation layer is between band and insulating barrier.
As the preferred implementation of the preparation method of compound half-hard magnetic material described in the utility model, in described step (1), alloying component is Fe, Ni and Al or is Fe, Ni, Al and Ti; In described step (5), in continuous coating machine, Phosphating Solution is housed, the speed that band carries out continuous impregnating process is 1 ~ 2m/min.
The beneficial effects of the utility model are: compound half-hard magnetic material of the present utility model comprise be made up of half-hard magnetic material basic unit, anti oxidation layer and insulating barrier, employ multi-layer compound structure innovatively, the bias slice of available Magnetic Sensor of uttering a word.
The utility model, at half-hard magnetic material surface recombination anti oxidation layer, improves the oxidation resistance of material self greatly, guarantees that final sound Magnetic Sensor also can keep the stability of semi-hard magnet state under the most harsh environment; Insulation processing is carried out to the half-hard magnetic material being compounded with anti oxidation layer, effectively reduces between semi-hard magnet and semi-hard magnet, magnetic attraction that semi-hard magnet produces time adjacent with amorphous resonance plate.By the Combined Processing to half-hard magnetic material, improve the weathering stability of sound Magnetic Sensor product, and open up new thinking for the production of sound Magnetic Sensor critical component.
The utility model not only solves sound Magnetic Sensor half-hard magnetic material and the problem of corroding easily affected by environment as bias slice, also solves the production efficiency problem easily produced between semi-hard magnet and semi-hard magnet, between semi-hard magnet and amorphous sheet in magnetic effect and production process.In addition, the utility model provides a kind of process route utilizing existing production line can facilitate production sound Magnetic Sensor compound half-hard magnetic material.
Accompanying drawing explanation
Fig. 1 is the cutaway view of compound half-hard magnetic material described in the utility model.
In figure, 1 is basic unit, and 2 is anti oxidation layer, and 3 is insulating barrier.
Embodiment
For the purpose of this utility model, technical scheme and advantage are described better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1
As shown in Figure 1, a kind of compound half-hard magnetic material of the utility model embodiment, it comprises the basic unit 1 be made up of half-hard magnetic material, and the outer surface of basic unit 1 is coated with anti oxidation layer 2 and insulating barrier 3, and anti oxidation layer 2 is between basic unit 1 and insulating barrier 3.At half-hard magnetic material Surface coating anti oxidation layer 2, greatly improve the oxidation resistance of material self, guarantee that final sound Magnetic Sensor also can keep the stability of semi-hard magnet state under the most harsh environment; Insulation processing is carried out to the half-hard magnetic material being coated with anti oxidation layer 2, effectively reduces between semi-hard magnet and semi-hard magnet, magnetic attraction that semi-hard magnet produces time adjacent with amorphous resonance plate.
Preferably, described half-hard magnetic material is Fe-Ni-Al alloy, and namely half-hard magnetic material is by Fe
ani
bal
calloying component is formed; Wherein, a, b, c are atomic percent, a=88, b=10, c=2.
Preferably, anti oxidation layer 2 is phosphate coating, and insulating barrier 3 is organic coating.Certainly, anti oxidation layer is not limited to phosphate coating, and insulating barrier is not limited to organic coating.Anti oxidation layer and insulating barrier can select the coating of other types according to prior art.
Above-mentioned phosphate coating is made up of Phosphating Solution, and preferably, Phosphating Solution is calcium series phosphatating liquid, and its pH value is 2; Above-mentioned organic coating is formed by organic coating, and preferably, organic coating is epoxy resin varnish.
Preferably, the thickness of anti oxidation layer 2 is 1 μm, and the thickness of insulating barrier 3 is 15 μm.
Described in the present embodiment, the preparation method of compound half-hard magnetic material is:
(1) foundry alloy melting: adopt vacuum melting method to smelt, alloying component is put into crucible, and being heated to temperature is 1450 DEG C, refining 20min after described alloying component fusing, cast becomes steel ingot; Wherein, alloying component is Fe
ani
bal
c, a, b, c are atomic percent, a=88, b=10, c=2;
(2) hot rolling slave board material: the steel ingot that step (1) is obtained carries out hot rolling, obtains the sheet material that thickness is 7mm;
(3) cold rolling is for band: sheet material step (2) obtained is heat-treated at the temperature of 800 DEG C, and cold rolling one-tenth thickness is the band of 0.045mm;
(4) band heat treatment: the band that step (3) obtains is carried out vacuum heat, heat treatment temperature is 580 DEG C, and the time is 45min;
(5) band anti-oxidant treatment: adopt continuous coating machine to carry out continuous impregnating process in step (4) through heat treated band, make the outer surface through heat treated band in step (4) be coated with anti oxidation layer, then wash, dry; Wherein, in continuous coating machine, Phosphating Solution is housed, the speed that band carries out continuous impregnating process is 1m/min.
(6) insulation processing: be coated with the outer surface galvanic insulation layer of band of anti oxidation layer.
Embodiment 2
A kind of compound half-hard magnetic material of the present embodiment, the difference of compound half-hard magnetic material described in itself and embodiment 1 is: described half-hard magnetic material is Fe-Ni-Al-Ti alloy, and namely half-hard magnetic material is by Fe
ani
bal
cti
dalloying component is formed, and wherein, a, b, c are atomic percent, a=78, b=20, c=1, d=1; Phosphate coating is made up of Zinc phosphating solution, and its pH value is 2.5; Organic coating is made up of polyurethane finish; The thickness of anti oxidation layer 2 is 5 μm, and the thickness of insulating barrier 3 is 5 μm.
Described in the present embodiment, the preparation method of compound half-hard magnetic material is:
(1) foundry alloy melting: adopt vacuum melting method to smelt, alloying component is put into crucible, and being heated to temperature is 1650 DEG C, refining 10min after described alloying component fusing, cast becomes steel ingot; Wherein, alloying component is Fe
ani
bal
cti
d, a, b, c, d are atomic percent, a=78, b=20, c=1, d=1;
(2) hot rolling slave board material: the steel ingot that step (1) is obtained carries out hot rolling, obtains the sheet material that thickness is 5mm;
(3) cold rolling is for band: sheet material step (2) obtained is heat-treated at the temperature of 1000 DEG C, and cold rolling one-tenth thickness is the band of 0.055mm;
(4) band heat treatment: the band that step (3) obtains is carried out vacuum heat, heat treatment temperature is 550 DEG C, and the time is 60min;
(5) band anti-oxidant treatment: adopt continuous coating machine to carry out continuous impregnating process in step (4) through heat treated band, make the outer surface through heat treated band in step (4) be coated with anti oxidation layer, then wash, dry; Wherein, in continuous coating machine, Phosphating Solution is housed, the speed that band carries out continuous impregnating process is 2m/min.
(6) insulation processing: be coated with the outer surface galvanic insulation layer of band of anti oxidation layer.
Embodiment 3
A kind of compound half-hard magnetic material of the present embodiment, the difference of compound half-hard magnetic material described in itself and embodiment 1 is: described half-hard magnetic material is Fe-Ni-Al-Ti alloy, and namely half-hard magnetic material is by Fe
ani
bal
cti
dalloying component is formed, and wherein, a, b, c are atomic percent, a=83, b=15, c=1.5, d=0.5; Phosphate coating is made up of manganese phosphating liquor, and its pH value is 3; Organic coating is made up of phenolic resins; The thickness of anti oxidation layer 2 is 10 μm, and the thickness of insulating barrier 3 is 15 μm.
Described in the present embodiment, the preparation method of compound half-hard magnetic material is:
(1) foundry alloy melting: adopt vacuum melting method to smelt, alloying component is put into crucible, and being heated to temperature is 1550 DEG C, refining 15min after described alloying component fusing, cast becomes steel ingot; Wherein, alloying component is Fe
ani
bal
cti
d, a, b, c, d are atomic percent, a=83, b=15, c=1.5, d=0.5;
(2) hot rolling slave board material: the steel ingot that step (1) is obtained carries out hot rolling, obtains the sheet material that thickness is 10mm;
(3) cold rolling is for band: sheet material step (2) obtained is heat-treated at the temperature of 900 DEG C, and cold rolling one-tenth thickness is the band of 0.05mm;
(4) band heat treatment: the band that step (3) obtains is carried out vacuum heat, heat treatment temperature is 600 DEG C, and the time is 30min;
(5) band anti-oxidant treatment: adopt continuous coating machine to carry out continuous impregnating process in step (4) through heat treated band, make the outer surface through heat treated band in step (4) be coated with anti oxidation layer, then wash, dry; Wherein, in continuous coating machine, Phosphating Solution is housed, the speed that band carries out continuous impregnating process is 1.5m/min.
(6) insulation processing: be coated with the outer surface galvanic insulation layer of band of anti oxidation layer.
Finally to should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model but not restriction to the utility model protection range; although be explained in detail the utility model with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to the technical solution of the utility model or equivalent replacement, and not depart from essence and the scope of technical solutions of the utility model.
Claims (8)
1. a compound half-hard magnetic material, is characterized in that: comprise the basic unit be made up of half-hard magnetic material, and the outer surface of described basic unit is coated with anti oxidation layer and insulating barrier, and described anti oxidation layer is between described basic unit and described insulating barrier.
2. compound half-hard magnetic material as claimed in claim 1, is characterized in that: described half-hard magnetic material is Fe-Ni-Al alloy or Fe-Ni-Al-Ti alloy.
3. compound half-hard magnetic material as claimed in claim 2, is characterized in that: described half-hard magnetic material is by Fe
ani
bal
cti
dalloying component is formed; Wherein, a, b, c, d are atomic percent, and excursion is: 10≤b≤20,1≤c≤2,0≤d≤1, a=100-b-c-d.
4. compound half-hard magnetic material as claimed in claim 1, it is characterized in that: described anti oxidation layer is phosphate coating, described insulating barrier is organic coating.
5. compound half-hard magnetic material as claimed in claim 4, is characterized in that: described phosphate coating is made up of following at least one Phosphating Solution: calcium series phosphatating liquid, Zinc phosphating solution, manganese phosphating liquor, barium based phosphatization liquid and aluminium based phosphatization liquid; Described organic coating is made up of epoxy resin varnish, polyurethane finish, phenolic resins or mylar.
6. compound half-hard magnetic material as claimed in claim 5, is characterized in that: the pH value of described Phosphating Solution is 2 ~ 3.
7. compound half-hard magnetic material as claimed in claim 1, it is characterized in that: the thickness of described anti oxidation layer is 1 ~ 10 μm, the thickness of described insulating barrier is 5 ~ 15 μm.
8. compound half-hard magnetic material as claimed in claim 7, it is characterized in that: the thickness of described anti oxidation layer is 1 ~ 5 μm, the thickness of described insulating barrier is 5 ~ 10 μm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161239A (en) * | 2015-09-16 | 2015-12-16 | 广州齐达材料科技有限公司 | Composite half-hard magnetic material and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161239A (en) * | 2015-09-16 | 2015-12-16 | 广州齐达材料科技有限公司 | Composite half-hard magnetic material and preparation method thereof |
| CN105161239B (en) * | 2015-09-16 | 2018-08-24 | 广州齐达材料科技有限公司 | A kind of compound half-hard magnetic material and preparation method thereof |
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