CN110401312A - A kind of copper leads rotor and preparation method thereof - Google Patents

A kind of copper leads rotor and preparation method thereof Download PDF

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Publication number
CN110401312A
CN110401312A CN201910661392.9A CN201910661392A CN110401312A CN 110401312 A CN110401312 A CN 110401312A CN 201910661392 A CN201910661392 A CN 201910661392A CN 110401312 A CN110401312 A CN 110401312A
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China
Prior art keywords
copper
rotor
preparation
leads
silicon steel
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CN201910661392.9A
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CN110401312B (en
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尚小东
宋永生
林立康
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Guangdong Fenghua Advanced Tech Holding Co Ltd
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Guangdong Fenghua Advanced Tech Holding Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/14—Conductive material dispersed in non-conductive inorganic material
    • H01B1/16—Conductive material dispersed in non-conductive inorganic material the conductive material comprising metals or alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20—Conductive material dispersed in non-conductive organic material
    • H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
    • 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

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

The present invention relates to rotors, and in particular to a kind of copper leads rotor and preparation method thereof, belongs to motor technology field.Copper of the present invention leads the preparation method of rotor the following steps are included: in the silicon steel lamination that (1) folds copper conductor slurry injection；(2) the silicon steel lamination of drying steps (1) injection copper conductor slurry；(3) the dried silicon steel lamination of step (2) is sintered under protective gas protective atmosphere, obtains the copper and leads rotor.The present invention provides the preparation methods that a kind of new copper leads rotor, copper made from the method for the present invention, which leads rotor, can prevent defect caused by existing copper casting rotor, and it is more preferable than the electric conductivity of copper casting rotor, it effectively increases copper and leads the quality of rotor, performance, and reduce energy consumption, material consumption.

Description

A kind of copper leads rotor and preparation method thereof
Technical field
The present invention relates to rotors, and in particular to a kind of copper leads rotor and preparation method thereof, belongs to motor technology neck Domain.
Background technique
Traditional motor rotor is cast-aluminum rotor.For energy saving, the working efficiency of motor is improved, is had in recent years People, which explores, is changed to copper casting rotor for cast-aluminum rotor, but copper casting rotor production difficulty is larger.
In the production process of copper casting rotor, the copper material melting stage will appear more bubble or copper liquid flowing short circuit, cause Copper rotor cast-internal generates stomata, cinder hole or generation " hydrogen embrittlement " phenomenon, the performance quality of copper rotor is seriously affected, to influence To the working effect of motor.It aoxidizes in order to prevent, someone took in the copper material melting stage, when temperature reaches 800 DEG C of Shi Xiangtong Appropriate surface dopant, such as charcoal, alkali or borax are added in liquid, in order to solve mobility, when temperature reaches 1000 DEG C to Suitable diluent, such as phosphor-copper are added in copper liquid, but in this way due to joined impurity in copper liquid, and leading for copper casting rotor can be reduced Electrically, the working effect of motor is finally influenced, the later period is it is proposed that push copper casting rotor, energy consumption in vacuum semisolid Again high, consumptive material is again big.
Motor is a kind of electromagnetic and mechanical device that energy conversion and transmitting is realized using interaction electrically and magnetically, is answered extensively For each field such as industry, agricultural, national defence, public utility and household electrical appliance.
According to energy conversion regime, motor can be divided into generator and motor.Generator is widely used for will be various Energy is converted into electric energy, as the core component for generating equipment dynamic.Motor is then the motor for converting electric energy to mechanical energy, It is used to drive various manufacturing machines, equipment and utensil extremely widely.As lathe driving, electric power plumbing, agricultural and sideline product add Work, ore digging and transmission, the traction of electric drive vehicle, blast apparatus, lifting equipment, rolling machinery, paper making equipment, chemical machinery And driving of household electrical appliance etc. is generally used motor to drive.
Although motor product is many kinds of, its structure is roughly the same, generally comprises following several parts: field frame assembly: fixed Sub- iron core, stator winding, packaging iron sheet；Rotor assembly: rotor core, rotor windings, rotor plain cushion；Other parts: end cap, branch Frame, pressure regulator, tail-hood assembly, carbon brush, bolt etc..Wherein field frame assembly, rotor assembly are the cores for determining motor overall performance Component, quality and performance directly determine the key indexes such as the performance, efficiency and stability of motor.In simple terms, motor The part of middle fixation is called stator, installs magnetic pole above it；And rotate part be called rotor, above installing armature around Group generates induced electromotive force after energization, serves as rotating excitation field and generates electromagnetic torque progress energy conversion.The present invention is exactly a kind of electricity Machine rotor.
With the development of power electronic technique, computer technology and control theory, the application of motor is no longer limited to industry Using the use scope of motor product expands to the fields such as business and housed device.Meanwhile with new material such as rare earth permanent magnet material The appearance of material, magnetic composite, so that various novel, efficient, specific type of electric machines emerge one after another.The nearly more than ten years, due to international society The attention degree of energy saving, environmental protection and sustainable development can be improved rapidly, production high efficiency motor has become global electricity Machine industrial expansion direction.Currently, the side that world's electric manufacturing is just developing simultaneously from the universal product to general and dedicated specialities To development, the variable-frequency motor of efficient, energy conservation, high-grade motor and electromechanical integration will have good market prospects.
Summary of the invention
It is an object of the invention to provide in place of overcome the deficiencies in the prior art, a kind of electric conductivity is more preferable, and quality is more preferably Copper leads rotor and preparation method thereof.
To achieve the above object, the technical scheme adopted by the invention is as follows: a kind of copper leads the preparation method of rotor comprising with Lower step:
(1) in the silicon steel lamination for folding copper conductor slurry injection；
(2) the silicon steel lamination of drying steps (1) injection copper conductor slurry；
(3) the dried silicon steel lamination of step (2) is sintered under protective gas protective atmosphere, obtains the copper and leads Rotor.
The present invention provides the preparation method that a kind of new copper leads rotor, copper made from the method for the present invention, which leads rotor, to shut out Defect caused by exhausted existing copper casting rotor, and more preferable than the electric conductivity of copper casting rotor, effectively increase copper lead rotor quality, Performance, and reduce energy consumption, material consumption.
The preferred embodiment of the preparation method of rotor is led as copper of the present invention, in the step (1), using injecting glue In the silicon steel lamination that technique folds copper conductor slurry injection.
Lead the preferred embodiment of the preparation method of rotor as copper of the present invention, in the step (1), copper conductor slurry Material includes following components in percentage by weight: copper powder 70%~90%, glass powder 0~5%, organic carrier 5%~30%.It is preferred that Ground, weight percent of the glass powder in the copper conductor slurry are 1%~5%.Add in copper electrode paste of the invention After entering glass powder, when sintering copper electrode paste into copper and leading rotor, sintering temperature can be reduced.If being added without glass powder, sintering temperature Degree is 950-980 DEG C, and sintering temperature can be down to 800 DEG C after glass powder is added.
The preferred embodiment of the preparation method of rotor is led as copper of the present invention, the organic carrier includes organic molten Agent and the organic resin being dissolved in the organic solvent.
The preferred embodiment of the preparation method of rotor is led as copper of the present invention, the organic solvent is alcohols, ester At least one of class, arene, ether solvent；The organic resin is methylcellulose, ethyl cellulose, acrylic acid tree At least one of rouge, PVB resin.
The preferred embodiment of the preparation method of rotor is led as copper of the present invention, the glass powder includes following weight The component of percentage: ZnO 25~45%, BaO 10~15%, CaO 2~8%, SiO22~5%, B2O35~15%, Li2O 0.1~8%, SrO 0.1~8%, MgO 0.1~8%, Na2O 0.1~8%, Al2O30.1~10%, Y2O3 0.1 ~10%, Nb2O50.1~1.8%, ZrO 0.1~9%, NiO 0.1~5%, TiO22~8%, Fe2O31~8%, CuO 1~8%.
Lead the preferred embodiment of the preparation method of rotor as copper of the present invention, the fineness of the copper electrode paste≤ 15 μm (at 90%).
The preferred embodiment of the preparation method of rotor is led as copper of the present invention, further includes before the step (1) Following steps: silicon steel lamination is subjected to cleaning and demagnetization.
Lead the preferred embodiment of the preparation method of rotor as copper of the present invention, in the step (2), dry temperature Degree is 120~150 DEG C；The dry time is 30~60 minutes.Preferably, it is dried using baking oven, baking oven can be box Furnace or chain belt furnace.
Lead the preferred embodiment of the preparation method of rotor as copper of the present invention, in the step (3), the temperature of sintering Degree is 800~980 DEG C, and the time of sintering is 30~60 minutes.Preferably, it is sintered in sintering furnace, sintering furnace can be Tubular type, box and chain-belt type etc..
The preferred embodiment of the preparation method of rotor is led as copper of the present invention, the protective gas is pure nitrogen gas.
In addition, leading rotor using the copper that the above method is prepared the present invention also provides a kind of.
Compared with prior art, the invention has the benefit that the present invention provides the preparations that a kind of new copper leads rotor Method, copper made from the method for the present invention, which leads rotor, can prevent defect caused by existing copper casting rotor, and than copper casting rotor Electric conductivity is more preferable, effectively increases copper and leads the quality of rotor, performance, and reduces energy consumption, material consumption.
Specific embodiment
Purposes, technical schemes and advantages in order to better illustrate the present invention, below in conjunction with specific embodiment to the present invention It is described further.
Embodiment 1
Copper of the present invention leads a kind of embodiment of rotor and preparation method thereof, and copper described in the present embodiment leads the preparation method of rotor Are as follows:
(1) silicon steel lamination is subjected to cleaning and demagnetization；
(2) copper conductor slurry is injected in the silicon steel lamination folded using injection process syringe；
(3) the silicon steel lamination of step (2) injection copper conductor slurry is placed in baking oven dry, dry temperature is 150 DEG C, The dry time is 30 minutes；
(4) the dried silicon steel lamination of step (3) is sintered in sintering furnace under pure nitrogen gas protective atmosphere, is obtained The copper leads rotor；The temperature of sintering is 950~980 DEG C, and the time of sintering is 45 minutes.
In above-mentioned preparation method, copper conductor slurry is grouped as by the group of following weight percentage: copper powder 70%, organic carrier 30%；
Wherein, organic carrier is made of organic solvent and the organic resin being dissolved in the organic solvent, described organic Solvent is ether solvent；The organic resin is methylcellulose；
Fineness≤15 μm of copper conductor slurry described in the present embodiment.
Above-mentioned copper conductor slurry the preparation method comprises the following steps:
(1) under 75~95 DEG C of water bath conditions, organic resin is dissolved in organic solvent, organic carrier is made；
(2) copper powder is added into organic carrier in proportion, either manually or mechanically stirs 30~60 minutes and is uniformly dispersed；The copper The partial size of powder is 0.05 μm.
(3) it is obtained described using three-high mill or horizontal sand mill grinding distribution to fineness≤15 μm of copper electrode paste Copper electrode paste.
Embodiment 2
Copper of the present invention leads a kind of embodiment of rotor and preparation method thereof, and copper described in the present embodiment leads the preparation method of rotor Are as follows:
(1) silicon steel lamination is subjected to cleaning and demagnetization；
(2) copper conductor slurry is injected in the silicon steel lamination folded using injection process syringe；
(3) the silicon steel lamination of step (2) injection copper conductor slurry is placed in baking oven dry, dry temperature is 120 DEG C, The dry time is 60 minutes；
(4) the dried silicon steel lamination of step (3) is sintered in sintering furnace under pure nitrogen gas protective atmosphere, is obtained The copper leads rotor；The temperature of sintering is 800 DEG C, and the time of sintering is 30 minutes.
In above-mentioned preparation method, copper conductor slurry is grouped as by the group of following weight percentage: copper powder 90%, glass powder 5%, organic carrier 5%；
Wherein, organic carrier is made of organic solvent and the organic resin being dissolved in the organic solvent, described organic Solvent is alcohols solvent；The organic resin is ethyl cellulose；
The glass powder is grouped as by the group of following weight percentage: ZnO 45%, BaO 10%, CaO 2%, SiO2 5%, B2O315%, Li2O 0.1%, SrO 0.1%, MgO 8%, Na2O 0.1%, Al2O30.7%, Y2O30.1%, Nb2O50.1%, ZrO 0.8%, NiO 3%, TiO28%, Fe2O31%, CuO 1%；
Fineness≤15 μm of copper conductor slurry described in the present embodiment.
Above-mentioned copper conductor slurry the preparation method comprises the following steps:
(1) under 75~95 DEG C of water bath conditions, organic resin is dissolved in organic solvent, organic carrier is made；
(2) copper powder and glass powder is added into organic carrier in proportion, it is equal either manually or mechanically to stir dispersion in 30~60 minutes It is even；The partial size of the copper powder is 15.00 μm.
(3) it is obtained described using three-high mill or horizontal sand mill grinding distribution to fineness≤15 μm of copper electrode paste Copper electrode paste.
Embodiment 3
Copper of the present invention leads a kind of embodiment of rotor and preparation method thereof, and copper described in the present embodiment leads the preparation method of rotor Are as follows:
(1) silicon steel lamination is subjected to cleaning and demagnetization；
(2) copper conductor slurry is injected in the silicon steel lamination folded using injection process syringe；
(3) the silicon steel lamination of step (2) injection copper conductor slurry is placed in baking oven dry, dry temperature is 135 DEG C, The dry time is 45 minutes；
(4) the dried silicon steel lamination of step (3) is sintered in sintering furnace under pure nitrogen gas protective atmosphere, is obtained The copper leads rotor；The temperature of sintering is 800 DEG C, and the time of sintering is 60 minutes.
In above-mentioned preparation method, copper conductor slurry is grouped as by the group of following weight percentage: copper powder 80%, glass powder 1%, organic carrier 19%；
Wherein, organic carrier is made of organic solvent and the organic resin being dissolved in the organic solvent, described organic Solvent is esters solvent；The organic resin is acrylic resin；
The glass powder is grouped as by the group of following weight percentage: ZnO 26%, BaO 11%, CaO 2.5%, SiO2 2.5%, B2O36%, Li2O 2%, SrO 8%, MgO 0.1%, Na2O 0.9%, Al2O310%, Y2O310%, Nb2O5 1%, ZrO 9%, NiO 5%, TiO22%, Fe2O32%, CuO 2%；
Fineness≤15 μm of copper conductor slurry described in the present embodiment.
Above-mentioned copper conductor slurry the preparation method comprises the following steps:
(1) under 75~95 DEG C of water bath conditions, organic resin is dissolved in organic solvent, organic carrier is made；
(2) copper powder and glass powder is added into organic carrier in proportion, it is equal either manually or mechanically to stir dispersion in 30~60 minutes It is even；The partial size of the copper powder is 10.00 μm.
(3) it is obtained described using three-high mill or horizontal sand mill grinding distribution to fineness≤15 μm of copper electrode paste Copper electrode paste.
Embodiment 4
Copper of the present invention leads a kind of embodiment of rotor and preparation method thereof, and copper described in the present embodiment leads the preparation method of rotor Are as follows:
(1) silicon steel lamination is subjected to cleaning and demagnetization；
(2) copper conductor slurry is injected in the silicon steel lamination folded using injection process syringe；
(3) the silicon steel lamination of step (2) injection copper conductor slurry is placed in baking oven dry, dry temperature is 150 DEG C, The dry time is 30 minutes；
(4) the dried silicon steel lamination of step (3) is sintered in sintering furnace under pure nitrogen gas protective atmosphere, is obtained The copper leads rotor；The temperature of sintering is 800 DEG C, and the time of sintering is 45 minutes.
In above-mentioned preparation method, copper conductor slurry is grouped as by the group of following weight percentage: copper powder 70%, glass powder 2%, organic carrier 28%；
Wherein, organic carrier is made of organic solvent and the organic resin being dissolved in the organic solvent, described organic Solvent is ether solvent；The organic resin is methylcellulose；
The glass powder is grouped as by the group of following weight percentage: ZnO 25%, BaO 15%, CaO 8%, SiO2 2%, B2O35%, Li2O 8%, SrO 5%, MgO 2%, Na2O 8%, Al2O30.1%, Y2O31.1%, Nb2O5 1.8%, ZrO 0.1%, NiO 0.1%, TiO22%, Fe2O38%, CuO 8%；
Fineness≤15 μm of copper conductor slurry described in the present embodiment.
Above-mentioned copper conductor slurry the preparation method comprises the following steps:
1) under 75~95 DEG C of water bath conditions, organic resin is dissolved in organic solvent, organic carrier is made；
(2) copper powder and glass powder is added into organic carrier in proportion, it is equal either manually or mechanically to stir dispersion in 30~60 minutes It is even；The partial size of the copper powder is 0.05 μm.
(3) it is obtained described using three-high mill or horizontal sand mill grinding distribution to fineness≤15 μm of copper electrode paste Copper electrode paste.
Effect example 1
This effect example has investigated the performance that copper described in Examples 1 to 4 leads rotor, and it is compared with copper casting rotor Compared with as a result as described in Table 1.Wherein, copper casting rotor prepare raw material and copper of the present invention lead rotor to prepare raw material identical, two Only preparation process is different by person.
Table 1
Seen from table 1, it is more preferable than the electric conductivity of copper casting rotor to lead rotor for copper made from the method for the present invention, effectively increases copper Quality, the performance of rotor are led, and reduces energy consumption, material consumption.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than protects to the present invention The limitation of range is protected, although the invention is described in detail with reference to the preferred embodiments, those skilled in the art should Understand, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the essence of technical solution of the present invention And range.

Claims (10)

1. the preparation method that a kind of copper leads rotor, which comprises the following steps:
(1) in the silicon steel lamination for folding copper conductor slurry injection；
(2) the silicon steel lamination of drying steps (1) injection copper conductor slurry；
(3) the dried silicon steel lamination of step (2) is sintered under protective gas protective atmosphere, obtain the copper lead turn Son.
2. the preparation method that copper as described in claim 1 leads rotor, which is characterized in that in the step (1), copper conductor slurry Including following components in percentage by weight: copper powder 70%~90%, glass powder 0~5%, organic carrier 5%~30%；It is preferred that Ground, weight percent of the glass powder in the copper conductor slurry are 1%~5%.
3. the preparation method that copper as claimed in claim 2 leads rotor, which is characterized in that the organic carrier includes organic solvent With the organic resin being dissolved in the organic solvent.
4. the preparation method that copper as claimed in claim 3 leads rotor, which is characterized in that the organic solvent be alcohols, esters, At least one of arene, ether solvent；The organic resin be methylcellulose, ethyl cellulose, acrylic resin, At least one of PVB resin.
5. the preparation method that copper as claimed in claim 2 leads rotor, which is characterized in that the glass powder includes following weight hundred Divide the component of ratio: ZnO 25~45%, BaO 10~15%, CaO 2~8%, SiO22~5%, B2O35~15%, Li2O 0.1~8%, SrO 0.1~8%, MgO 0.1~8%, Na2O 0.1~8%, Al2O30.1~10%, Y2O30.1~ 10%, Nb2O50.1~1.8%, ZrO 0.1~9%, NiO 0.1~5%, TiO22~8%, Fe2O31~8%, CuO 1 ~8%.
6. the preparation method that copper as claimed in claim 2 leads rotor, which is characterized in that fineness≤15 of the copper electrode paste μm。
7. the preparation method that copper as described in claim 1 leads rotor, which is characterized in that further include before the step (1) with Lower step: silicon steel lamination is subjected to cleaning and demagnetization.
8. the preparation method that copper as described in claim 1 leads rotor, which is characterized in that in the step (2), dry temperature It is 120~150 DEG C；The dry time is 30~60 minutes.
9. the preparation method that copper as described in claim 1 leads rotor, which is characterized in that in the step (3), the temperature of sintering It is 800~980 DEG C, the time of sintering is 30~60 minutes.
10. a kind of copper being prepared using any one of claim 1~9 the method leads rotor.
CN201910661392.9A 2019-07-22 2019-07-22 Copper guide rotor and preparation method thereof Active CN110401312B (en)

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Application Number Priority Date Filing Date Title
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CN110401312B CN110401312B (en) 2021-08-24

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030008A2 (en) * 1979-11-26 1981-06-10 Kangyo Denkikiki Kabushiki Kaisha Miniature motor coil
CN101136261A (en) * 2007-07-06 2008-03-05 广东风华高新科技股份有限公司 Copper electrode slurry material and manufacturing method thereof
CN102263463A (en) * 2010-05-24 2011-11-30 上海日立电器有限公司 Preparation process of motor rotor
CN110021450A (en) * 2019-04-17 2019-07-16 北京大学深圳研究生院 A kind of lead-free glass powder being used to prepare silver paste of solar cells and its application

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030008A2 (en) * 1979-11-26 1981-06-10 Kangyo Denkikiki Kabushiki Kaisha Miniature motor coil
CN101136261A (en) * 2007-07-06 2008-03-05 广东风华高新科技股份有限公司 Copper electrode slurry material and manufacturing method thereof
CN102263463A (en) * 2010-05-24 2011-11-30 上海日立电器有限公司 Preparation process of motor rotor
CN110021450A (en) * 2019-04-17 2019-07-16 北京大学深圳研究生院 A kind of lead-free glass powder being used to prepare silver paste of solar cells and its application

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