CN107196470A - Electric machine iron core and its preparation technology with very good mechanical properties - Google Patents
Electric machine iron core and its preparation technology with very good mechanical properties Download PDFInfo
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- CN107196470A CN107196470A CN201710576553.5A CN201710576553A CN107196470A CN 107196470 A CN107196470 A CN 107196470A CN 201710576553 A CN201710576553 A CN 201710576553A CN 107196470 A CN107196470 A CN 107196470A
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- powder
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- iron core
- electric machine
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/26—Selection of soldering or welding materials proper with the principal constituent melting at less than 400 degrees C
- B23K35/262—Sn as the principal constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
- C22C49/08—Iron group metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a kind of electric machine iron core with very good mechanical properties and its preparation technology, the preparation technology includes：1）Melting is carried out after the pig iron, sponge iron, silicon, copper, manganese, nickel, magnesium, molybdenum, rhenium and carbon fiber are mixed；Then refine obtaining molten hot metal, molten hot metal and then is carried out into cast molding is made assembly type embryo；2）The assembly type embryo is subjected to direct water-cooling after isothermal holding, component raw embryo is made；3）Finally, the component raw embryo is subjected to welding and the electric machine iron core with very good mechanical properties is made；Wherein, in step 3）In, the solder powder used of welding is made by following components：Nanometer tin alloyed powder, montmorillonite, indium, aluminium powder, iron powder, magnesium powder, copper powder and ceramic fibre.The electric machine iron core has hardness height, High anti bending strength, pressure resistance height etc. excellent mechanical performance, ensure that the working condition of machine motor long-time stable.
Description
Technical field
The present invention relates to motor component field, in particular it relates to a kind of electric machine iron core with very good mechanical properties
And its preparation technology.
Background technology
Motor（It is commonly called as " motor "）Refer to a kind of calutron that electric energy conversion or transmission are realized according to the law of electromagnetic induction.
Its main function is to produce driving torque, is used as electrical appliance or various mechanical power sources.
In simple terms：Fixed part is called stator in electric machine iron core（stator）, in pairs straight has been installed in the above
Flow the static main pole of excitation；And rotating part (rotor-rotor）Armature core is, armature winding is installed above；It is logical
Induced electromotive force is produced after electricity, serves as and electromagnetic torque progress energy conversion is produced after rotating excitation field.With the shape of stator winding with
Setting-in mode is distinguished, and stator winding is different from setting-in wire laying mode according to the shape of coil winding, can be divided into centralization and distribution
The class of formula two.
When motor works, the rotor and stator of electric machine iron core need the continuous work for carrying out high intensity for a long time, therefore
In order to ensure that the normal operation of machine proposes higher requirement to the mechanical strength and stability of its electric machine iron core.
The content of the invention
It is an object of the invention to provide a kind of electric machine iron core with very good mechanical properties and its preparation technology, the motor
Iron core has hardness height, High anti bending strength, pressure resistance height etc. excellent mechanical performance, ensure that machine motor is steady for a long time
Fixed working condition.
To achieve these goals, the invention provides a kind of preparation work of the electric machine iron core with very good mechanical properties
Skill, including：
1）Melting is carried out after the pig iron, sponge iron, silicon, copper, manganese, nickel, magnesium, molybdenum, rhenium and carbon fiber are mixed；Then carry out refining
To molten hot metal, molten hot metal is and then subjected to cast molding assembly type embryo is made；
2）The assembly type embryo is subjected to direct water-cooling after isothermal holding, component raw embryo is made；
3）Finally, the component raw embryo is subjected to welding and the electric machine iron core with very good mechanical properties is made；
Wherein, in step 3）In, the solder powder used of welding is made by following components：Nanometer tin alloyed powder, montmorillonite,
Indium, aluminium powder, iron powder, magnesium powder, copper powder and ceramic fibre.
By above-mentioned technical proposal, the present invention by the pig iron, sponge iron, silicon, copper, manganese, nickel, magnesium, molybdenum, rhenium and carbon fiber according to
Specific ratio carries out melting, refining and obtains molten hot metal successively after being mixed, be and then cast into molten hot metal
Assembly type embryo is made in type；Direct water-cooling after isothermal holding is carried out followed by by the assembly type embryo, component raw embryo is made；Finally,
The component raw embryo is subjected to welding the electric machine iron core with very good mechanical properties is made；Selected in the technique by nanometer
The solder powder that tin alloy powder, montmorillonite, indium, aluminium powder, iron powder, magnesium powder, copper powder and ceramic fibre are prepared is welded, and enters one
Step improves hardness, rupture strength and the pressure resistance height of weld assembly and obtained electric machine iron core etc. mechanical performance, with energy
Enough ensure the working condition of machine motor long-time stable.
Other features and advantages of the present invention will be described in detail in subsequent embodiment part.
Embodiment
The embodiment to the present invention is described in detail below.It should be appreciated that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The end points and any value of disclosed scope are not limited to the accurate scope or value herein, these scopes or
Value should be understood to comprising the value close to these scopes or value.For number range, between the endpoint value of each scope, respectively
It can be combined with each other between the endpoint value of individual scope and single point value, and individually between point value and obtain one or more
New number range, these number ranges should be considered as specific open herein.
The invention provides a kind of preparation technology of the electric machine iron core with very good mechanical properties, including：
1）Melting is carried out after the pig iron, sponge iron, silicon, copper, manganese, nickel, magnesium, molybdenum, rhenium and carbon fiber are mixed；Then carry out refining
To molten hot metal, molten hot metal is and then subjected to cast molding assembly type embryo is made；
2）The assembly type embryo is subjected to direct water-cooling after isothermal holding, component raw embryo is made；
3）Finally, the component raw embryo is subjected to welding and the electric machine iron core with very good mechanical properties is made；
Wherein, in step 3）In, the solder powder used of welding is made by following components：Nanometer tin alloyed powder, montmorillonite,
Indium, aluminium powder, iron powder, magnesium powder, copper powder and ceramic fibre.
In above-mentioned preparation method, the amount ratio of each component can be selected in wide scope in the solder powder, but in order to
Improve solder powder welding effect, it is preferable that in the solder powder each component in parts by weight, the nanometer tin alloy
Powder, montmorillonite, indium, aluminium powder, iron powder, magnesium powder, the amount ratio of copper powder and ceramic fibre are 100：10-15：1.1-2.5：2.4-
3.6：5.1-6.4：1.1-5.1：1.5-2.0：1.5-3.4.
In step 1）In, the actual conditions of the melting can be adjusted in wide scope, but in order to improve melting effect
Mutual synergy between fruit and then raising each component, it is preferable that the melting at least meets following condition：Temperature is 1350-
1600 DEG C, the time is 4-6h.
In addition, the actual conditions of the refining can be adjusted in wide scope, but in order to improve refining effect, preferably
Ground, in step 1）In, the refining process is：First time refining first is carried out at 1350-1400 DEG C, the time is 2-3h；Then with
45-55 DEG C/h is warming up to 1600-1650 DEG C and carries out second of refining, and the time is 1-2h.
In step 2）In, the condition of water cooling can be controlled in wide scope, but in order to improve obtained component raw embryo
Toughness and mechanical strength, it is preferable that the condition of the water cooling is：Temperature is 60-70 DEG C, and the time is 6-10h.
In the present invention, the detailed process of the insulation can adjust control in wide scope, but in order to improve insulation
Effect and then the intensity and the stability of mechanical performance for improving obtained iron core, it is preferable that the process of the isothermal holding is：First
The assembly type embryo is incubated 1-2h at 850-950 DEG C, 500-600 DEG C of insulation 3- is then cooled to 55-60 DEG C/h speed
4h；Insulation terminates rear direct water-cooling, that is, the component raw embryo is made.
For the stability of the mechanical performance that further improves iron core, before the isothermal holding, the assembly type embryo
Temperature be 750-850 DEG C.
In the present invention, the consumption proportion between each raw material can be selected in wide scope, but divide it to improve each group
Between mutual synergy so that improve obtained iron core mechanical performance stability, it is preferable that it is in parts by weight, described
The pig iron, sponge iron, silicon, copper, manganese, nickel, magnesium, molybdenum, the amount ratio of rhenium and carbon fiber are 100：5-14：6-10：0.15-0.25：
1.6-2.1：0.09-0.12：0.09-1.5：0.26-0.50：0.16-0.20：1.2-2.9.
Present invention also offers the electric machine iron core made from a kind of above-mentioned preparation technology with very good mechanical properties.
The present invention will be described in detail by way of examples below.
Embodiment 1
1）By the pig iron, sponge iron, silicon, copper, manganese, nickel, magnesium, molybdenum, rhenium and carbon fiber according to 100：5：6：0.15：1.6：0.09：
0.09：0.26：0.16：In 1350 DEG C of melting 6h after 1.2 weight ratio mixing；Then, first 2h is refined at 1400 DEG C；Again with 45
DEG C/h is warming up to 1600 DEG C of refining 1h to obtain molten hot metal；And then molten hot metal is subjected to cast molding and assembly type is made
Embryo；
2）Temperature is first incubated 2h at 850 DEG C for 750 DEG C of the assembly type embryo, then 500 are cooled to 55 DEG C/h speed
DEG C insulation 4h；It is incubated after terminating in 60 DEG C of direct water-cooling 6h, that is, the component raw embryo is made；
3) the component raw embryo finally, is subjected to welding the electric machine iron core with very good mechanical properties is made, be denoted as A1；
Wherein, step 3）Solder powder used in middle welding be by nanometer tin alloyed powder, montmorillonite, indium, aluminium powder, iron powder, magnesium powder,
The amount ratio of copper powder and ceramic fibre is 100：10：1.1：2.4：5.1：1.1：1.5：1.5 mixed after it is obtained.
Embodiment 2
1）By the pig iron, sponge iron, silicon, copper, manganese, nickel, magnesium, molybdenum, rhenium and carbon fiber according to 100：10：8：0.20：1.8：0.11：
1.2：035：0.18：In 1450 DEG C of melting 5h after 2.0 weight ratio mixing；Then, first 2.5h is refined at 1400 DEG C；Again with 50
DEG C/h is warming up to 1600 DEG C of refining 2h to obtain molten hot metal；And then molten hot metal is subjected to cast molding and assembly type is made
Embryo；
2）Temperature is first incubated 1.5h at 900 DEG C for 800 DEG C of the assembly type embryo, is then cooled to 60 DEG C/h speed
550 DEG C of insulation 3.5h；It is incubated after terminating in 65 DEG C of direct water-cooling 8h, that is, the component raw embryo is made；
3) the component raw embryo finally, is subjected to welding the electric machine iron core with very good mechanical properties is made, be denoted as A2；
Wherein, step 3）Solder powder used in middle welding be by nanometer tin alloyed powder, montmorillonite, indium, aluminium powder, iron powder, magnesium powder,
The amount ratio of copper powder and ceramic fibre is 100：12：2.0：3.1：6.0：3.5：1.8：3.0 mixed after it is obtained.
Embodiment 3
1）By the pig iron, sponge iron, silicon, copper, manganese, nickel, magnesium, molybdenum, rhenium and carbon fiber according to 100： 14：10：0.25：2.1：0.12：
1.5：0.50：0.20：In 1600 DEG C of melting 6h after 2.9 weight ratio mixing；Then, first 3h is refined at 1400 DEG C；Again with 55 DEG C/
H is warming up to 1650 DEG C of refining 1h to obtain molten hot metal；And then molten hot metal is subjected to cast molding and assembly type embryo is made；
2）Temperature is first incubated 2h at 950 DEG C for 850 DEG C of the assembly type embryo, then 600 are cooled to 60 DEG C/h speed
DEG C insulation 3h；It is incubated after terminating in 70 DEG C of direct water-cooling 10h, that is, the component raw embryo is made；
3) the component raw embryo finally, is subjected to welding the electric machine iron core with very good mechanical properties is made, be denoted as A3；
Wherein, step 3）Solder powder used in middle welding be by nanometer tin alloyed powder, montmorillonite, indium, aluminium powder, iron powder, magnesium powder,
The amount ratio of copper powder and ceramic fibre is 100：15：2.5：3.6：6.4：5.1：2.0：3.4 mixed after it is obtained.
Comparative example 1
Electric machine iron core is prepared Following the procedure of Example 1, B1 is denoted as；Unlike, sponge iron is not added in raw material.
Comparative example 2
Electric machine iron core is prepared Following the procedure of Example 1, B2 is denoted as；Unlike, rhenium is not added in raw material.
Comparative example 3
Electric machine iron core is prepared Following the procedure of Example 1, B3 is denoted as；Unlike, molybdenum is not added in raw material.
Comparative example 4
Electric machine iron core is prepared Following the procedure of Example 1, B4 is denoted as；Unlike, carbon fiber is not added in raw material.
Comparative example 5
Electric machine iron core is prepared Following the procedure of Example 1, B5 is denoted as；Unlike, montmorillonite is not added in solder powder used.
Comparative example 6
Electric machine iron core is prepared Following the procedure of Example 1, B6 is denoted as；Unlike, ceramic fibre is not added in solder powder used.
Comparative example 7
Electric machine iron core is prepared Following the procedure of Example 1, B7 is denoted as；Unlike, indium is not added in solder powder used.
Detect example 1
It is strong to embodiment A1-A3 and comparative example B1-B7 Rockwell hardness HRA, anti-folding according to JB/T-1225-2014 examination criterias
Degree（MPa）And compression strength（MPa）Tested etc. mechanical performance, concrete outcome is shown in Table 1.
Table 1
| Rockwell hardness HRA | Rupture strength/MPa | Compression strength/MPa | |
| A1 | 91.8 | 447 | 2100 |
| A2 | 92.3 | 451 | 2060 |
| A3 | 91.5 | 453 | 2110 |
| B1 | 78 | 357 | 1800 |
| B2 | 81 | 351 | 1810 |
| B3 | 79 | 350 | 1750 |
| B4 | 75 | 355 | 1690 |
| B5 | 65 | 312 | 1650 |
| B6 | 70 | 320 | 1670 |
| B7 | 68 | 310 | 1700 |
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited to the tool in above-mentioned embodiment
Body details, in the range of the technology design of the present invention, can carry out a variety of simple variants, these letters to technical scheme
Monotropic type belongs to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (9)
1. a kind of preparation technology of the electric machine iron core with very good mechanical properties, it is characterised in that including：
1）Melting is carried out after the pig iron, sponge iron, silicon, copper, manganese, nickel, magnesium, molybdenum, rhenium and carbon fiber are mixed；Then carry out refining
To molten hot metal, molten hot metal is and then subjected to cast molding assembly type embryo is made；
2）The assembly type embryo is subjected to direct water-cooling after isothermal holding, component raw embryo is made；
3）Finally, the component raw embryo is subjected to welding and the electric machine iron core with very good mechanical properties is made；
Wherein, in step 3）In, the solder powder used of welding is made by following components：Nanometer tin alloyed powder, montmorillonite,
Indium, aluminium powder, iron powder, magnesium powder, copper powder and ceramic fibre.
2. preparation technology according to claim 1, wherein, each component is in parts by weight, described in the solder powder
Nanometer tin alloyed powder, montmorillonite, indium, aluminium powder, iron powder, magnesium powder, the amount ratio of copper powder and ceramic fibre are 100：10-15：1.1-
2.5：2.4-3.6：5.1-6.4：1.1-5.1：1.5-2.0：1.5-3.4.
3. preparation technology according to claim 1, wherein, in step 1）In, the melting at least meets following condition：Temperature
Spend for 1350-1600 DEG C, the time is 4-6h.
4. preparation technology according to claim 3, wherein, in step 1）In, the refining process is：First in 1350-
1400 DEG C of progress first time refinings, the time is 2-3h；Then it is warming up to 1600-1650 DEG C with 45-55 DEG C/h and carries out second of essence
Refining, the time is 1-2h.
5. preparation technology according to claim 3, wherein, the condition of the water cooling is：Temperature is 60-70 DEG C, and the time is
6-10h。
6. the preparation technology according to any one in claim 1-5, wherein, the process of the isothermal holding is：First will
The assembly type embryo is incubated 1-2h at 850-950 DEG C, is then cooled to 500-600 DEG C of insulation 3-4h with 55-60 DEG C/h speed；
Insulation terminates rear direct water-cooling, that is, the component raw embryo is made.
7. preparation technology according to claim 6, wherein, before the isothermal holding, the temperature of the assembly type embryo
For 750-850 DEG C.
8. preparation technology according to claim 1, wherein, in parts by weight, the pig iron, sponge iron, silicon, copper, manganese,
Nickel, magnesium, molybdenum, the amount ratio of rhenium and carbon fiber are 100：5-14：6-10：0.15-0.25：1.6-2.1：0.09-0.12：0.09-
1.5：0.26-0.50：0.16-0.20：1.2-2.9.
9. there is the motor of very good mechanical properties made from the preparation technology in a kind of 1-8 as claim described in any one
Iron core.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710576553.5A CN107196470B (en) | 2017-07-14 | 2017-07-14 | Motor iron core with excellent mechanical property and preparation process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710576553.5A CN107196470B (en) | 2017-07-14 | 2017-07-14 | Motor iron core with excellent mechanical property and preparation process thereof |
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| Publication Number | Publication Date |
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| CN107196470A true CN107196470A (en) | 2017-09-22 |
| CN107196470B CN107196470B (en) | 2020-04-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109913777A (en) * | 2017-12-12 | 2019-06-21 | 江苏赛尔亚环保科技有限公司 | Asynchronous machine case material |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1146384A (en) * | 1995-09-28 | 1997-04-02 | 沈阳电机厂 | Spun casting method for cast-aluminium rotor of large-size electric motor |
| CN104200986A (en) * | 2014-09-15 | 2014-12-10 | 安徽蓝海机电设备有限公司 | Transformer core and production method thereof |
| CN105441781A (en) * | 2014-09-24 | 2016-03-30 | 山东菏泽振华精密模具有限公司 | Method for manufacturing wheel mold |
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| CN107196470B (en) | 2020-04-14 |
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Effective date of registration: 20220331 Address after: 241300 No.7, S320 provincial road, Nanling Economic Development Zone, Wuhu City, Anhui Province Patentee after: NANLING LIANG LI ELECTRICAL TOOLS CO.,LTD. Address before: 241000 Business Incubation Park No. 415, Weiqi Road, Yijiang District, Wuhu City, Anhui Province Patentee before: WUHU QIANKAI MATERIAL TECHNOLOGY Co.,Ltd. |