CN106653274A - Powder metallurgy magnetic ring for new energy automobile magnetic water pump with sound-absorbing and noise-reducing function and manufacturing method thereof - Google Patents
Powder metallurgy magnetic ring for new energy automobile magnetic water pump with sound-absorbing and noise-reducing function and manufacturing method thereof Download PDFInfo
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- CN106653274A CN106653274A CN201611011148.0A CN201611011148A CN106653274A CN 106653274 A CN106653274 A CN 106653274A CN 201611011148 A CN201611011148 A CN 201611011148A CN 106653274 A CN106653274 A CN 106653274A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
- H01F1/36—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles
-
- 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
Abstract
The invention discloses a powder metallurgy magnetic ring for a new energy automobile magnetic water pump with sound-absorbing and noise-reducing function. The powder metallurgy magnetic ring comprises, by weight, 21-23 parts of chromium, 0.028-0.036 part of carbon, 3-4 parts of zinc, 0.2-0.3 part of lanthanum, 10-11 parts of copper, 1.1-1.5 parts of nano graphite powder, 0.4-0.6 part of antimony oxide, 4-6 parts of silicon manganese alloy powder, 0.1-0.2 part of sodium metasilicate, 2-4 parts of ozokerite, 2.1-2.5 parts of ethyltrimethoxysilane, 8-10 parts of urea resin, 2-3 parts of morpholine, 1.2-1.5 parts of manganese zinc ferrite and 49-51 parts of iron. The manufacturing method of a powder metallurgy magnetic ring for a new energy automobile magnetic water pump with sound-absorbing and noise-reducing function covers the nano graphite powder after modifying with a layer of copper film as a solid lubricant and adds components of modified manganese zinc iron ferrite, compound zinc and lanthanum, adopting technologies of sintering and high temperature annealing to improve microstructure of materials. Magnetic ring surface is smooth and free of bubble, which is capable of reducing the magnetic ring breakage. When applied to the magnetic water pump, the magnetic ring also has functions of sound absorbing and noise reducing.
Description
Technical field
The present invention relates to technical field of magnetic materials, more particularly to a kind of new-energy automobile magnetic with absorbing sound and lowering noise function
Power water pump powder metallurgy magnet ring and preparation method thereof.
Background technology
Soft magnetic materials, is the common functional material of a class, is widely used in motor, generator, transformer, sensor
And in other electrical equipments, be modern civilization sophisticated equipment in very important part.It is characterized in less
Saturated magnetization state can be quickly responded and reached under magnetic field, and is almost disappeared external magnetic field back magnetization state is removed, it is easy to logical
Cross and slightly change outfield and control the magnetized state of material.With the continuous development of automobile industry, environmental friendliness, energy-conservation subtract
Row, the popularity rate cumulative year after year of green novel energy source automobile, the demand of soft magnetic materials also increases steadily, in particular for new forms of energy
The market scale of the inside and outside magnet ring of magnetic water pump vital part of the electrical equipment such as motor, the controller of vehicle will increasingly increase.Magnet ring is again
Ferrite bead is claimed to be the anti-interference element commonly used in electronic circuit, for high-frequency noise has good inhibiting effect.
Ferrite can be regarded as the oxide of iron and the complex of other metal oxides, conventional ferrite master
If the ferrite of MnZn, nickel zinc and magnesium zinc series.Manganese-zinc ferrite has high saturated magnetic induction, high magnetic permeability, high electricity
The good characteristics such as resistance rate, low-power consumption, the quality of its performance directly decides that the performance of soft magnetic materials is good and bad, thus to manganese-zinc ferrite
The performance improvement of body is particularly important, and relevant its research is also more, such as《CaO is to Mn-Zn ferrite microstructures and magnetic property
Affect》CaO-Bi is prepared for using conventional oxide ceramic process2O3-MoO3-Nb2O5Composite mixed high magnetic permeability Mn-Zn iron oxygen
Body material, using SEM（SEM）, B-H testers and electric impedance analyzer etc. carry out to material structure and magnetic property
Characterize, have studied Different adding amount CaO to the microstructure of high-permeability Mn-Zn ferrite and the impact of magnetic property.As a result
Show, adding appropriate CaO can reduce the damage of material with crystal grain thinning, the frequency characteristic of raising material and quality factor q
Consumption；As mass fraction CaO=0.03%, material has optimal combination property：μ i=9772.22, L200/L10=
99.36%, room temperature PCV=435.14mW/cm3.
But be only that manganese-zinc ferrite is improved on the microscale level in document, although its frequency characteristic has changed
It is kind, but for prepare exist during magnet ring magnetic it is low, intolerant to burn into resistance to acids and bases is poor, the little defect such as not wear-resisting of hardness, thus urgent need
Formula and technological process to prior art middle magnetic ring reconfigures modified, is properly added alloying elements and lubricating auxiliary agent etc.
To improve the performances such as its corrosion-resistant, acid and alkali-resistance, the service life of magnet ring is improved.
The content of the invention
The object of the invention is exactly to make up the defect of prior art, there is provided a kind of new forms of energy with absorbing sound and lowering noise function
Automobile magnetic water pump powder metallurgy magnet ring and preparation method thereof.
The present invention is achieved by the following technical solutions：
A kind of new-energy automobile magnetic water pump powder metallurgy magnet ring with absorbing sound and lowering noise function, by the raw material of following weight portion
Make：Chromium 21-23, carbon 0.028-0.036, zinc 3-4, lanthanum 0.2-0.3, copper 10-11, Nano graphite powder 1.1-1.5, antimony oxide
0.4-0.6, silicomangan powder 4-6, sodium metasilicate 0.1-0.2, ceresine 2-4, ethyl trimethoxy silane 2.1-2.5, ureaformaldehyde tree
Fat 8-10, morpholine 2-3, manganese-zinc ferrite 1.2-1.5, iron 49-51, described its mole of recipe ratio of manganese-zinc ferrite is oxidation
Iron：Manganese oxide：Zinc oxide=51.5：24.5：24.
A kind of described new-energy automobile magnetic water pump with absorbing sound and lowering noise function making side of powder metallurgy magnet ring
Method, comprises the following steps：
（1）Nano graphite powder is added into mass concentration uniform for ultrasonic disperse in the sodium metasilicate aqueous solution of 5-10%, add ethyl
Trimethoxy silane, morpholine are heated to 50-70 DEG C, are sufficiently stirred for 5-8 hours, are spray-dried；
（2）Copper powder is put into and be brought rapidly up in crucible electrical resistance furnace to being completely melt, add step（1）The stirring of material ultrasonic wave is mixed
Even, insulation stands 20-25 minutes, molten metal Jing powder by gas-atomization equipment is obtained into copper clad of the particle diameter below 100 μm and is modified
Nano graphite powder；
（3）Manganese-zinc ferrite is adopted into steel ball wet-milling 2-3 hours, pre-burning 2 hours at 900-920 DEG C are dried, add antimony oxide,
Silicomangan powder carries out secondary ball milling 4-5 hours, and drying adds polyvinyl alcohol water solution, the step that mass ratio is 12%（2）Material
Ultrasonic disperse 20-30 minutes, it is spray-dried to obtain mixed powder；
（4）By ball milling mixing in iron powder and chromium, carbon, zinc, the mixed powder machine of lanthanum powder input, step is added（3）Mixed powder, Lauxite
And other residual components are heated to 50-60 DEG C, stirring 30-40 minutes are vacuum dried, and are added in mould and are pressed into required form,
Obtain green compact；
（5）Above-mentioned green compact are put in sintering furnace, under the protective atmosphere of nitrogen, 500 DEG C is warming up within 2 hours, 30 minutes are incubated,
800 DEG C are warming up within 1 hour again, 30 minutes are incubated, 1100-1150 DEG C is warming up within then 1 hour, 2 hours are incubated, and close fire cold with stove
But it is put in annealing furnace to room temperature, 800 DEG C of annealing under nitrogen protection discharge for two hours.
It is an advantage of the invention that：Modified Nano graphite powder surface is covered one layer of copper film as solid lubrication for the present invention
Agent, density contrast is little, physical and mechanical properties are close, improves its, density increasing high with the wellability and interface bond strength of matrix
Plus, segregation is reduced, and clad can play a part of evaporation or the oxidation of protecting kollag to cause from high temperature, can show
Write the intensity and frictional behaviour for improving material；Simultaneously the present invention also adds the compositions such as modified manganese-zinc ferrite and composite zinc, lanthanum, adopts
With slow heat up sintering, high-temperature annealing process stage by stage, with crystal grain thinning crystal grain distribution can be promoted uniform, reduce material planted agent
Power, improves material microscopic appearance, improves the frequency characteristic and quality factor of material, reduces the loss of material, obtained magnet ring table
Face is smooth, bubble-free, can reduce magnetic ring scission, and the magnet ring is applied on magnetic water pump, with absorbing sound and lowering noise function.
Specific embodiment
A kind of new-energy automobile magnetic water pump powder metallurgy magnet ring with absorbing sound and lowering noise function, by following weight portion
Raw material is made：Chromium 21, carbon 0.028, zinc 3, lanthanum 0.2, copper 10, Nano graphite powder 1.1, antimony oxide 0.4, silicomangan powder 4, inclined silicon
Sour sodium 0.1, ceresine 2, ethyl trimethoxy silane 2.1, Lauxite 8, morpholine 2, manganese-zinc ferrite 1.2, iron 49, described manganese
Its mole of recipe ratio of Zn ferrite is iron oxide：Manganese oxide：Zinc oxide=51.5：24.5：24.
A kind of described new-energy automobile magnetic water pump with absorbing sound and lowering noise function making side of powder metallurgy magnet ring
Method, comprises the following steps：
（1）Nano graphite powder is added into mass concentration uniform for ultrasonic disperse in the sodium metasilicate aqueous solution of 5-10%, add ethyl
Trimethoxy silane, morpholine are heated to 50-70 DEG C, are sufficiently stirred for 5-8 hours, are spray-dried；
（2）Copper powder is put into and be brought rapidly up in crucible electrical resistance furnace to being completely melt, add step（1）The stirring of material ultrasonic wave is mixed
Even, insulation stands 20-25 minutes, molten metal Jing powder by gas-atomization equipment is obtained into copper clad of the particle diameter below 100 μm and is modified
Nano graphite powder；
（3）Manganese-zinc ferrite is adopted into steel ball wet-milling 2-3 hours, pre-burning 2 hours at 900-920 DEG C are dried, add antimony oxide,
Silicomangan powder carries out secondary ball milling 4-5 hours, and drying adds polyvinyl alcohol water solution, the step that mass ratio is 12%（2）Material
Ultrasonic disperse 20-30 minutes, it is spray-dried to obtain mixed powder；
（4）By ball milling mixing in iron powder and chromium, carbon, zinc, the mixed powder machine of lanthanum powder input, step is added（3）Mixed powder, Lauxite
And other residual components are heated to 50-60 DEG C, stirring 30-40 minutes are vacuum dried, and are added in mould and are pressed into required form,
Obtain green compact；
（5）Above-mentioned green compact are put in sintering furnace, under the protective atmosphere of nitrogen, 500 DEG C is warming up within 2 hours, 30 minutes are incubated,
800 DEG C are warming up within 1 hour again, 30 minutes are incubated, 1100-1150 DEG C is warming up within then 1 hour, 2 hours are incubated, and close fire cold with stove
But it is put in annealing furnace to room temperature, 800 DEG C of annealing under nitrogen protection discharge for two hours.
There is following technical characteristic using powder metallurgy magnet ring obtained in the present invention：
（1）Density：5.18g/cm3
（2）Initial permeability μi=9788.02；
（3）Frequency stability parameter L200/ L10=99.59%；
（4）Room temperature volume power consumption PCV=415.44mW/cm3。
Claims (2)
1. a kind of new-energy automobile magnetic water pump powder metallurgy magnet ring with absorbing sound and lowering noise function, it is characterised in that by under
The raw material of row weight portion is made：Chromium 21-23, carbon 0.028-0.036, zinc 3-4, lanthanum 0.2-0.3, copper 10-11, Nano graphite powder
1.1-1.5, antimony oxide 0.4-0.6, silicomangan powder 4-6, sodium metasilicate 0.1-0.2, ceresine 2-4, ethyl trimethoxy silane
2.1-2.5, Lauxite 8-10, morpholine 2-3, manganese-zinc ferrite 1.2-1.5, iron 49-51, described its mole of manganese-zinc ferrite
Recipe ratio is iron oxide：Manganese oxide：Zinc oxide=51.5：24.5：24.
2. a kind of new-energy automobile magnetic water pump powder metallurgy magnetic with absorbing sound and lowering noise function according to claim 1
The preparation method of ring, it is characterised in that comprise the following steps：
（1）Nano graphite powder is added into mass concentration uniform for ultrasonic disperse in the sodium metasilicate aqueous solution of 5-10%, add ethyl
Trimethoxy silane, morpholine are heated to 50-70 DEG C, are sufficiently stirred for 5-8 hours, are spray-dried；
（2）Copper powder is put into and be brought rapidly up in crucible electrical resistance furnace to being completely melt, add step（1）The stirring of material ultrasonic wave is mixed
Even, insulation stands 20-25 minutes, molten metal Jing powder by gas-atomization equipment is obtained into copper clad of the particle diameter below 100 μm and is modified
Nano graphite powder；
（3）Manganese-zinc ferrite is adopted into steel ball wet-milling 2-3 hours, pre-burning 2 hours at 900-920 DEG C are dried, add antimony oxide,
Silicomangan powder carries out secondary ball milling 4-5 hours, and drying adds polyvinyl alcohol water solution, the step that mass ratio is 12%（2）Material
Ultrasonic disperse 20-30 minutes, it is spray-dried to obtain mixed powder；
（4）By ball milling mixing in iron powder and chromium, carbon, zinc, the mixed powder machine of lanthanum powder input, step is added（3）Mixed powder, Lauxite
And other residual components are heated to 50-60 DEG C, stirring 30-40 minutes are vacuum dried, and are added in mould and are pressed into required form,
Obtain green compact；
（5）Above-mentioned green compact are put in sintering furnace, under the protective atmosphere of nitrogen, 500 DEG C is warming up within 2 hours, 30 minutes are incubated,
800 DEG C are warming up within 1 hour again, 30 minutes are incubated, 1100-1150 DEG C is warming up within then 1 hour, 2 hours are incubated, and close fire cold with stove
But it is put in annealing furnace to room temperature, 800 DEG C of annealing under nitrogen protection discharge for two hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011148.0A CN106653274A (en) | 2016-11-17 | 2016-11-17 | Powder metallurgy magnetic ring for new energy automobile magnetic water pump with sound-absorbing and noise-reducing function and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011148.0A CN106653274A (en) | 2016-11-17 | 2016-11-17 | Powder metallurgy magnetic ring for new energy automobile magnetic water pump with sound-absorbing and noise-reducing function and manufacturing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107123501A (en) * | 2017-06-23 | 2017-09-01 | 江苏食品药品职业技术学院 | A kind of magnetic water pump of absorbing sound and lowering noise powder metallurgy magnet ring and preparation method thereof |
| CN107297506A (en) * | 2017-06-23 | 2017-10-27 | 江苏食品药品职业技术学院 | A kind of new-energy automobile magnetic water pump powder metallurgy magnet ring and preparation method thereof |
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| CN103117146A (en) * | 2013-02-26 | 2013-05-22 | 苏州冠达磁业有限公司 | High-Curie-temperature low-loss high-strength ferrite magnetic block and preparation method thereof |
| CN104332271A (en) * | 2014-09-28 | 2015-02-04 | 安徽欧瑞达电器科技有限公司 | Lanthanum base ferrite magnetic core material for transformer |
| CN104557000A (en) * | 2015-01-15 | 2015-04-29 | 安徽龙磁科技股份有限公司 | Anti-interference ferrite magnetic core material |
| CN105761864A (en) * | 2016-04-13 | 2016-07-13 | 天长市天豪制冷设备厂 | High-magnetic-energy-product ferrite core material |
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2016
- 2016-11-17 CN CN201611011148.0A patent/CN106653274A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103117146A (en) * | 2013-02-26 | 2013-05-22 | 苏州冠达磁业有限公司 | High-Curie-temperature low-loss high-strength ferrite magnetic block and preparation method thereof |
| CN104332271A (en) * | 2014-09-28 | 2015-02-04 | 安徽欧瑞达电器科技有限公司 | Lanthanum base ferrite magnetic core material for transformer |
| CN104557000A (en) * | 2015-01-15 | 2015-04-29 | 安徽龙磁科技股份有限公司 | Anti-interference ferrite magnetic core material |
| CN105761864A (en) * | 2016-04-13 | 2016-07-13 | 天长市天豪制冷设备厂 | High-magnetic-energy-product ferrite core material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107123501A (en) * | 2017-06-23 | 2017-09-01 | 江苏食品药品职业技术学院 | A kind of magnetic water pump of absorbing sound and lowering noise powder metallurgy magnet ring and preparation method thereof |
| CN107297506A (en) * | 2017-06-23 | 2017-10-27 | 江苏食品药品职业技术学院 | A kind of new-energy automobile magnetic water pump powder metallurgy magnet ring and preparation method thereof |
| CN107297506B (en) * | 2017-06-23 | 2019-01-29 | 江苏食品药品职业技术学院 | A kind of new-energy automobile magnetic water pump powder metallurgy magnet ring and preparation method thereof |
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