CN110000977A - A kind of producing device and production method of electric machine iron core coating - Google Patents
A kind of producing device and production method of electric machine iron core coating Download PDFInfo
- Publication number
- CN110000977A CN110000977A CN201910314796.0A CN201910314796A CN110000977A CN 110000977 A CN110000977 A CN 110000977A CN 201910314796 A CN201910314796 A CN 201910314796A CN 110000977 A CN110000977 A CN 110000977A
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- Prior art keywords
- electric machine
- iron core
- mold
- machine iron
- cover board
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/10—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/26—Moulds or cores
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- 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
Abstract
The invention discloses the producing device and production method of a kind of electric machine iron core coating, newel, positioning column and locating slot are set, positioning column and locating slot are arranged around newel on bottom plate；The mold core of form fit with electric machine iron core is placed on bottom plate, annular wall is inserted into locating slot, and cover board connect with newel and mold core is pressed abd fixed on positioning column；Inject the first fluent material by through-hole on cover board, until the height with mold core maintains an equal level, the gap between mold core and bottom plate and using the inner wall of annular wall as the solidification of the first fluent material of Boundary filling after form mold；Electric machine iron core is fixed on bottom plate, cover board is fixedly connected with newel, mold is pressed abd fixed on bottom plate by cover board, forms electric machine iron core coating directly on electric machine iron core after injecting second liquid material to the gap between mold and electric machine iron core by the through-hole on cover board.Electric machine iron core coating is directly produced on electric machine iron core by mold, be can be improved insulation effect and is reduced Production Time.
Description
Technical field
The present invention relates to the manufacture technology field of iron core coating more particularly to a kind of producing device of electric machine iron core coating and
Production method.
Background technique
The iron core of motor in axial magnetic field be it is discoid, after the completion of coiling, need its surface cover one layer of insulating materials,
Realize the insulation between iron core and winding.Prior art is the insulation realized between iron core and winding using insulating paper, system
It is longer to make the time, and insulation effect is poor.
Therefore, how a kind of producing device of electric machine iron core coating is provided, to improve insulation effect and reduce Production Time,
It is current those skilled in the art technical problem urgently to be resolved.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of producing device of electric machine iron core coating, to improve insulation effect
Fruit simultaneously reduces Production Time.The purpose of the present invention is to provide a kind of production methods of electric machine iron core coating.
In order to achieve the above object, the invention provides the following technical scheme:
A kind of producing device of electric machine iron core coating, including bottom plate, mold core, cover board, annular wall,
Newel, positioning column and locating slot are provided on the bottom plate, the positioning column is arranged around the newel, institute
It states locating slot to be arranged around the newel, offers the first connecting hole, the top of the positioning column at the top of the newel
Pin is provided with,
The form fit of the mold core and electric machine iron core, when the mold core is placed on the bottom plate, between the two
Gap forms mold after injecting the first fluent material, and the first pin for matching and using with the pin is offered on the mold core
Hole,
The second pin hole for matching and using with the pin is offered on the electric machine iron core,
The through-hole for injecting fluent material is offered on the cover board, for what is be used cooperatively with first connecting hole
Second connecting hole, first connecting hole and second connecting hole are connected by connector,
The cover board is fixed on the positioning column by the mold core, and the annular wall is inserted into the locating slot, described
The height of annular wall is higher than the height of the mold core, injects first fluent material and maintains an equal level up to the height of the mold core,
First fluent material forms the mold,
The electric machine iron core is fixed on the bottom plate, and the cover board secures the mold on the bottom plate, described
Gap between mold and the electric machine iron core directly forms motor on the electric machine iron core after injecting second liquid material
Iron core coating.
Preferably, above-mentioned positioning column is multiple and is uniformly arranged around the newel.
Preferably, above-mentioned positioning column is three.
Preferably, above-mentioned first connecting hole is multiple and is uniformly arranged on the newel in a ring.
Preferably, above-mentioned first connecting hole is three.
Preferably, above-mentioned through-hole is arcuate socket, and the through-hole is multiple and is uniformly arranged on the cover board in a ring.
Preferably, above-mentioned connector is bolt.
Preferably, above-mentioned first fluent material is silica gel.
Preferably, above-mentioned second liquid material is epoxy resin.
The present invention also provides a kind of production methods of electric machine iron core coating, comprising:
Newel, positioning column and locating slot is arranged in step 1) on bottom plate, and the positioning column is arranged around the newel,
The locating slot is arranged around the newel；
The mold core of form fit with electric machine iron core is placed on the bottom plate by step 2), and it is described fixed that annular wall is inserted into
In the slot of position, cover board is fixedly connected with the newel, the mold core is fixed on the positioning column by the cover board；
Step 3) injects the first fluent material by the through-hole on the cover board, until the height with the mold core maintains an equal level,
Gap between the mold core and the bottom plate and using the inner wall of the annular wall as first fluent material of Boundary filling
Mold is formed after solidification；
Step 4) removes the cover board, the mold core and the mold from the bottom plate；
The electric machine iron core is fixed on the bottom plate by step 5), and the cover board is fixedly connected with the newel,
The mold is pressed abd fixed on the bottom plate by the cover board, by the through-hole on the cover board to the mold and the electricity
Gap between machine iron core forms electric machine iron core coating after injecting second liquid material directly on the electric machine iron core.
Preferably, above-mentioned steps 5) it further include carrying out vacuumizing and defoaming after injecting the second liquid material.
Preferably, above-mentioned steps 5) it further include carrying out baking-curing after vacuumizing and defoaming.
The producing device of electric machine iron core coating provided by the invention, including bottom plate, mold core, cover board, annular wall,
Newel, positioning column and locating slot are provided on the bottom plate, the positioning column is arranged around the newel, institute
It states locating slot to be arranged around the newel, offers the first connecting hole, the top of the positioning column at the top of the newel
Pin is provided with,
The form fit of the mold core and electric machine iron core, when the mold core is placed on the bottom plate, between the two
Gap forms mold after injecting the first fluent material, and the first pin for matching and using with the pin is offered on the mold core
Hole,
The second pin hole for matching and using with the pin is offered on the electric machine iron core,
The through-hole for injecting fluent material is offered on the cover board, for what is be used cooperatively with first connecting hole
Second connecting hole, first connecting hole and second connecting hole are connected by connector,
The cover board is fixed on the positioning column by the mold core, and the annular wall is inserted into the locating slot, described
The height of annular wall is higher than the height of the mold core, injects first fluent material and maintains an equal level up to the height of the mold core,
First fluent material forms the mold,
The electric machine iron core is fixed on the bottom plate, and the cover board secures the mold on the bottom plate, described
Gap between mold and the electric machine iron core directly forms motor on the electric machine iron core after injecting second liquid material
Iron core coating.
When use:
Newel, positioning column and locating slot is arranged in step 1) on bottom plate, and the positioning column is arranged around the newel,
The locating slot is arranged around the newel；
The mold core of form fit with electric machine iron core is placed on the bottom plate by step 2), and it is described fixed that annular wall is inserted into
In the slot of position, cover board is fixedly connected with the newel, the mold is fixed on the positioning column by the cover board；
Step 3) injects the first fluent material by the through-hole on the cover board, until the height with the mold core maintains an equal level,
Gap between the mold core and the bottom plate and using the inner wall of the annular wall as first fluent material of Boundary filling
Mold is formed after solidification；
Step 4) removes the cover board, the mold core and the mold from the bottom plate；
The electric machine iron core is fixed on the bottom plate by step 5), and the cover board is fixedly connected with the newel,
The mold core is pressed abd fixed on the bottom plate by the cover board, by the through-hole on the cover board to the mold and the electricity
Gap between machine iron core forms electric machine iron core coating after injecting second liquid material directly on the electric machine iron core.
The producing device of electric machine iron core coating provided by the invention, directly produces motor by mold on electric machine iron core
Iron core coating can be improved insulation effect and reduce Production Time.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of bottom plate provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of mold core provided in an embodiment of the present invention；
Fig. 3 is that mold core provided in an embodiment of the present invention is mounted on the structural schematic diagram on bottom plate；
Fig. 4 is the structural schematic diagram of cover board provided in an embodiment of the present invention；
Fig. 5 is the cover board provided in an embodiment of the present invention structural schematic diagram that mold core is fixed；
Fig. 6 is that annular wall provided in an embodiment of the present invention is mounted on the structural schematic diagram on bottom plate；
Fig. 7 is the structural schematic diagram after first fluent material of injection provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram after the completion of Mold Making provided in an embodiment of the present invention；
Fig. 9 is the structural schematic diagram of electric machine iron core provided in an embodiment of the present invention；
Figure 10 is the structural schematic diagram that electric machine iron core provided in an embodiment of the present invention and mold are used cooperatively；
Figure 11 is the cover board provided in an embodiment of the present invention structural schematic diagram that electric machine iron core is fixed；
Figure 12 is the structural schematic diagram of the electric machine iron core provided in an embodiment of the present invention with coating.
In figure 1 above -12:
Bottom plate 1, newel 11, positioning column 12, locating slot 13, mold core 2, the first pin hole 21, cover board 3, through-hole 31, second connect
Connect hole 32, bolt 33, annular wall 4, mold 5, electric machine iron core 6, the second pin hole 61, electric machine iron core coating 7.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Please refer to the structural schematic diagram that Fig. 1 to 12, Fig. 1 is bottom plate provided in an embodiment of the present invention；Fig. 2 is that the present invention is implemented
The structural schematic diagram for the mold core that example provides；Fig. 3 is that mold core provided in an embodiment of the present invention is mounted on the structural schematic diagram on bottom plate；
Fig. 4 is the structural schematic diagram of cover board provided in an embodiment of the present invention；Fig. 5 is that cover board provided in an embodiment of the present invention fixes mold core
Structural schematic diagram；Fig. 6 is that annular wall provided in an embodiment of the present invention is mounted on the structural schematic diagram on bottom plate；Fig. 7 is this hair
Structural schematic diagram after the first fluent material of injection that bright embodiment provides；Fig. 8 is Mold Making provided in an embodiment of the present invention
Structural schematic diagram after the completion；Fig. 9 is the structural schematic diagram of electric machine iron core provided in an embodiment of the present invention；Figure 10 is that the present invention is real
The structural schematic diagram that the electric machine iron core and mold for applying example offer are used cooperatively；Figure 11 is that cover board provided in an embodiment of the present invention will be electric
The fixed structural schematic diagram of machine iron core；Figure 12 is the structural representation of the electric machine iron core provided in an embodiment of the present invention with coating
Figure.
The producing device of electric machine iron core coating provided in an embodiment of the present invention, including bottom plate 1, mold core 2, cover board 3, annular wall
4, newel 11, positioning column 12 and locating slot 13 are provided on bottom plate 1, positioning column 12 is arranged around newel 11, locating slot 13
It is arranged around newel 11, the top of newel 11 offers the first connecting hole, and the top of positioning column 12 is provided with pin, mold core
2 with the form fit of electric machine iron core 6, when mold core 2 is placed on bottom plate 1, the first liquid material is being injected in gap between the two
Mold 5 is formed after material, offers the first pin hole 21 for matching and using with pin on mold core 2, is offered on electric machine iron core 6 and pin
The second pin hole 61 for using is matched, through-hole 31 for injecting fluent material is offered on cover board 3, for matching with the first connecting hole
It closes the second connecting hole 32 used, the first connecting hole and the second connecting hole 32 to connect by connector, cover board 3 is fixed by mold core 2
On positioning column 12, annular wall 4 is inserted into locating slot 13, and the height of annular wall 4 is higher than the height of mold core 2, injects the first liquid
Material is until the height with mold core 2 maintains an equal level, and the first fluent material forms mold 5, and electric machine iron core 6 is fixed on bottom plate 1, cover board 3
Mold 5 is fixed on bottom plate 1, the gap between mold 5 and electric machine iron core 6 is after injecting second liquid material directly in motor
Electric machine iron core coating 7 is formed on iron core 6.
When use:
Newel 11, positioning column 12 and locating slot 13 is arranged in step 1) on bottom plate 1, and positioning column 12 is set around newel 11
It sets, locating slot 13 is arranged around newel 11；
The mold core 2 of form fit with electric machine iron core 6 is placed on bottom plate 1 by step 2), and annular wall 4 is inserted into locating slot
In 13, cover board 3 is fixedly connected with newel 11, mold core 2 is pressed abd fixed on positioning column 12 by cover board 3；
Step 3) injects the first fluent material by the through-hole 31 on cover board 3, until the height with mold core 2 maintains an equal level, mold core 2
Gap between bottom plate 1 and using the inner wall of annular wall 4 as the solidification of the first fluent material of Boundary filling after form mold 5；
Step 4) removes cover board 3, mold core 2 and mold 5 from bottom plate 1；
Electric machine iron core 6 is fixed on bottom plate 1 by step 5), and cover board 3 is fixedly connected with newel 11, and cover board 3 is by mold 5
It is pressed abd fixed on bottom plate 1, the second liquid is being injected to the gap between mold 5 and electric machine iron core 6 by the through-hole 31 on cover board 3
Electric machine iron core coating 7 is formed after body material directly on electric machine iron core 6.
The producing device of electric machine iron core coating provided in an embodiment of the present invention is directly made on electric machine iron core 6 by mold 5
Electric machine iron core coating 7 is made, can be improved insulation effect and reduces Production Time.
In order to advanced optimize above scheme, positioning column 12 is multiple and is uniformly arranged around newel 11.Positioning column 12
It can be three.First connecting hole is multiple and is uniformly arranged on newel 11 in a ring.First connecting hole is three.
Wherein, through-hole 31 is arcuate socket, and through-hole 31 is multiple and is uniformly arranged on cover board 3 in a ring.Connector can be with
For bolt 33.First fluent material is silica gel.Second liquid material is epoxy resin.
The embodiment of the present invention also provides a kind of production method of electric machine iron core coating, comprising:
Newel 11, positioning column 12 and locating slot 13 is arranged in step 1) on bottom plate 1, and positioning column 12 is set around newel 11
It sets, locating slot 13 is arranged around newel 11；
The mold core 2 of form fit with electric machine iron core 6 is placed on bottom plate 1 by step 2), and annular wall 4 is inserted into locating slot
In 13, cover board 3 is fixedly connected with newel 11, mold core 2 is pressed abd fixed on positioning column 12 by cover board 3；
Step 3) injects the first fluent material by the through-hole 31 on cover board 3, until the height with mold core 2 maintains an equal level, mold core 2
Gap between bottom plate 1 and using the inner wall of annular wall 4 as the solidification of the first fluent material of Boundary filling after form mold 5；
Step 4) removes cover board 3, mold core 2 and mold 5 from bottom plate 1；
Electric machine iron core 6 is fixed on bottom plate 1 by step 5), and cover board 3 is fixedly connected with newel 11, and cover board 3 is by mold 5
It is pressed abd fixed on bottom plate 1, the second liquid is being injected to the gap between mold 5 and electric machine iron core 6 by the through-hole 31 on cover board 3
Electric machine iron core coating 7 is formed after body material directly on electric machine iron core 6.
In order to advanced optimize above scheme, step 5) further includes carrying out vacuumizing and defoaming after injecting second liquid material.
Step 5) further includes carrying out baking-curing after vacuumizing and defoaming.
The producing device of electric machine iron core coating provided in an embodiment of the present invention:
On bottom plate 1, as shown in Figure 1, threaded hole is provided at the top of newel 11, i.e. the first connecting hole, the pressure for cover board 3
Tightly, positioning column 12 can have multiple, and there is pin used for positioning on top, and locating slot 13 is inserted into for annular wall 4.
For mold core 2 as shown in Fig. 2, its size is that electric machine iron core 6 completes the size after coating, i.e. mold core 2 is bigger than electric machine iron core 6
One circle, for making the cavity in silica gel mould.First pin hole 21 corresponding with positioning column 12 is arranged at the top of mold core 2, for fixed
Position.Mold core 2 is put upside down on positioning column 12, as shown in Figure 3.
Cover board 3 is as shown in figure 4, be placed on mold core 2.Its ring fills mouth, i.e. through-hole 31, for pouring into silica gel.Top is provided with logical
Bolt 33 is locked corresponding to the threaded hole on newel 11 in hole, i.e. the second connecting hole 32, for the compression of cover board 3, thus solid
Surely mold core 2 is lived, as shown in Figure 5.
Outer race tube, i.e. annular wall 4, the outer ring for silica gel mould are fixed, and are mounted in the locating slot 13 of bottom plate 1.Outer ring
The height of pipe is higher than the certain height of mold core 2, prevents the silica gel when vacuumizing from overflowing.As shown in fig. 6, in order to more clearly open up
Show internal structure, it is herein that outer race tube paintings are translucent.
Silica gel is injected from top, as shown in fig. 7, height is flushed with mold core 2.After silica gel solidifies completely, cover board 3 is taken out
With mold core 2, the mold 5 of silica gel material is obtained, as shown in Figure 8.
Then electric machine iron core 6 is put upside down on positioning column 12, the top of electric machine iron core is provided with and positions as mold core 2
Corresponding second pin hole 61 of column 12, as shown in Figure 10.
Cover board 3 is placed on electric machine iron core 6 again, is equally locked with bolt 33, fixes electric machine iron core 6, as shown in figure 11.
There is cavity between electric machine iron core 6 and mold 5 at this time, will be used to make the fluent material of coating, such as epoxy resin
This cavity is injected from top, then carries out vacuumizing and defoaming, then baking-curing.
Cover board 3 is finally removed, takes out electric machine iron core 6 to get the electric machine iron core with coating 7 is arrived, as shown in figure 12.
Wherein, silica gel is not almost bonded with the cladding material of all kinds, is easy demoulding；And release agent is eliminated,
Reduce by a procedure.Silica gel material is at low cost.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of producing device of electric machine iron core coating, which is characterized in that including bottom plate, mold core, cover board, annular wall,
Newel, positioning column and locating slot are provided on the bottom plate, the positioning column is arranged around the newel, described fixed
Position grooved ring is arranged around the newel, and the first connecting hole, the top setting of the positioning column are offered at the top of the newel
There is pin,
The form fit of the mold core and electric machine iron core, when the mold core is placed on the bottom plate, gap between the two
Mold is formed after injecting the first fluent material, the first pin hole for matching and using with the pin is offered on the mold core,
The second pin hole for matching and using with the pin is offered on the electric machine iron core,
The through-hole for injecting fluent material, second for being used cooperatively with first connecting hole are offered on the cover board
Connecting hole, first connecting hole and second connecting hole are connected by connector,
The cover board is fixed on the positioning column by the mold core, and the annular wall is inserted into the locating slot, the annular
The height of wall is higher than the height of the mold core, injects first fluent material and maintains an equal level up to the height of the mold core, described
First fluent material forms the mold,
The electric machine iron core is fixed on the bottom plate, and the cover board secures the mold on the bottom plate, the mold
Gap between the electric machine iron core directly forms electric machine iron core on the electric machine iron core after injecting second liquid material
Coating.
2. the producing device of electric machine iron core coating according to claim 1, which is characterized in that the positioning column be it is multiple and
It is uniformly arranged around the newel.
3. the producing device of electric machine iron core coating according to claim 1, which is characterized in that first connecting hole is more
It is a and be uniformly arranged on the newel in a ring.
4. the producing device of electric machine iron core coating according to claim 1, which is characterized in that the through-hole is arcuate socket,
The through-hole is multiple and is uniformly arranged on the cover board in a ring.
5. the producing device of electric machine iron core coating according to claim 1, which is characterized in that the connector is bolt.
6. the producing device of electric machine iron core coating according to claim 1, which is characterized in that first fluent material is
Silica gel.
7. the producing device of electric machine iron core coating according to claim 1, which is characterized in that the second liquid material is
Epoxy resin.
8. a kind of production method of electric machine iron core coating characterized by comprising
Newel, positioning column and locating slot is arranged in step 1) on bottom plate, and the positioning column is arranged around the newel, described
Locating slot is arranged around the newel；
The mold core of form fit with electric machine iron core is placed on the bottom plate by step 2), and annular wall is inserted into the locating slot
In, cover board is fixedly connected with the newel, the mold core is fixed on the positioning column by the cover board；
Step 3) injects the first fluent material by the through-hole on the cover board, until the height with the mold core maintains an equal level, it is described
Gap between mold core and the bottom plate and solidify by first fluent material of Boundary filling of the inner wall of the annular wall
After form mold；
Step 4) removes the cover board, the mold core and the mold from the bottom plate；
The electric machine iron core is fixed on the bottom plate by step 5), and the cover board is fixedly connected with the newel, described
The mold is pressed abd fixed on the bottom plate by cover board, by the through-hole on the cover board to the mold and the motor iron
Gap between core forms electric machine iron core coating after injecting second liquid material directly on the electric machine iron core.
9. the production method of electric machine iron core coating according to claim 8, which is characterized in that the step 5) further includes note
Vacuumizing and defoaming is carried out after entering the second liquid material.
10. the production method of electric machine iron core coating according to claim 9, which is characterized in that the step 5) further includes
Baking-curing is carried out after vacuumizing and defoaming.
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| CN201910314796.0A CN110000977B (en) | 2019-04-18 | 2019-04-18 | Manufacturing device and manufacturing method for motor iron core coating |
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| CN201910314796.0A CN110000977B (en) | 2019-04-18 | 2019-04-18 | Manufacturing device and manufacturing method for motor iron core coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112992519A (en) * | 2019-12-02 | 2021-06-18 | 河南森源电气股份有限公司 | Current transformer iron core buffer processing production method and buffer processing die |
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