CN108667232A - Coiled strip stick and the motor slot wedge mould pressing process in a kind of motor slot wedge mould pressing process - Google Patents
Coiled strip stick and the motor slot wedge mould pressing process in a kind of motor slot wedge mould pressing process Download PDFInfo
- Publication number
- CN108667232A CN108667232A CN201810756216.9A CN201810756216A CN108667232A CN 108667232 A CN108667232 A CN 108667232A CN 201810756216 A CN201810756216 A CN 201810756216A CN 108667232 A CN108667232 A CN 108667232A
- Authority
- CN
- China
- Prior art keywords
- slot wedge
- coiled strip
- motor slot
- pressing process
- mould pressing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000003825 pressing Methods 0.000 title claims abstract description 32
- 238000000465 moulding Methods 0.000 claims abstract description 47
- 229920005989 resin Polymers 0.000 claims abstract description 35
- 239000011347 resin Substances 0.000 claims abstract description 35
- 239000000853 adhesive Substances 0.000 claims abstract description 23
- 230000001070 adhesive effect Effects 0.000 claims abstract description 23
- 239000011505 plaster Substances 0.000 claims abstract description 23
- 239000004744 fabric Substances 0.000 claims abstract description 20
- 239000011521 glass Substances 0.000 claims abstract description 20
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229920003192 poly(bis maleimide) Polymers 0.000 claims abstract description 19
- 238000007731 hot pressing Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000002253 acid Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 150000003949 imides Chemical class 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 125000002252 acyl group Chemical group 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 150000002466 imines Chemical class 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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
- H02K15/0018—Applying slot closure means in the core; Manufacture of slot closure means
-
- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/46—Measuring, controlling or regulating
-
- 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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/02—Thermal after-treatment
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention discloses the coiled strip sticks and the motor slot wedge mould pressing process in a kind of motor slot wedge mould pressing process, and wherein coiled strip stick includes cylindric coiled strip stick ontology, the diameter of phi of coiled strip stick ontologyStickMeet formula：Wherein, ΦsFor the circular diameter being converted by motor slot wedge perimeter of section；One end of coiled strip stick ontology opens up the groove for sized glass cloth to be clamped；It is connected with handle on coiled strip stick ontology.The present invention can quickly determine the optimum diameter of coiled strip stick, and determine the corresponding best molding parameters of adhesive plaster in unlike material bismaleimide, production efficiency is high, it is good to be molded prepared motor slot wedge apparent mass, surface is without groove, fold or resin side, high mechanical strength, thermal stability are good.
Description
Technical field
The invention belongs to motor slot wedge mould pressing process technical field, more particularly to the volume in a kind of motor slot wedge mould pressing process
Charge bar and the motor slot wedge mould pressing process.
Background technology
With the continuous development of China's electric locomotive cause, the performance of locomotive traction motor is higher and higher, thus to traction
The requirement of motor insulating products is also higher and higher.Important component of the motor slot wedge as fixed traction electrical-coil, except requirement tool
Have outside corresponding insulation grade anti-corrosion, more should be ensured that with higher mechanical strength and geometric dimension.If electrode slot wedge has
Quality problems, it is likely that the powerful centrifugal force generated under high temperature and high speed by motor is thrown away, cause electric machine chamber-sweeping it is serious after
Fruit.Analyzed from slot wedge stress, slot wedge in the operating condition, mainly by lateral bending and shear stress, stress destruction
Position is the both sides angle faces for concentrating on slot wedge along longitudinal direction mostly.
Currently, there are two types of production technologies for motor slot wedge：(1) plank grinds slot wedge, has this manufacture craft to be made
Motor slot wedge, since lateral glass fibre is rubbed, to reduce the strengthening action of glass fibre；(2) molded wedge, will be upper
The winding of glue glass cloth ensure that the continuity of electrode slot wedge transverse fiber at cylindric compression molding, enhance the transverse direction of slot wedge
Intensity, thus be used widely.
The main technologic parameters for influencing the motor slot wedge mechanical strength that mould pressing process is made have：(1) coiled strip stick diameter；
(2) molding pressure；(3) molding temperature；(4) clamp time；(5) heat treatment temperature and time.
Influence of the coiled strip stick diameter to molded wedge is as follows：(1) it when the diameter of coiled strip stick is excessive, is rubbed with the hands with coiled strip stick
The drum diameter for rolling up the formation of sized glass cloth will be bigger than normal, after cylinder is put into mold cavity, since the perimeter of cylinder is more than mold
Cavity perimeter of section can form groove or fold, as shown in Figure 1 after molding on slot wedge surface.(2) when the diameter of coiled strip stick is too small
When, the drum diameter for rubbing volume sized glass cloth formation with the hands with coiled strip stick will be less than normal, after cylinder is put into mold cavity, due to cylinder
Perimeter is less than mold cavity perimeter of section, can form resin side in slot wedge side angle faces after molding, it is laterally curved to seriously affect slot wedge
Qu Qiangdu, as shown in Figure 2.
Currently, it is less to the research of motor slot wedge mould pressing process in the prior art, all it is to be chosen roughly according to working experience
Coiled strip stick diameter, and molding pressure, molding temperature, clamp time, heat treatment temperature and time are rule of thumb controlled, thus be molded
Prepared motor slot wedge apparent mass is poor, and surface generally all has groove, fold or resin side, and mechanical strength is low, and heat is steady
Qualitative difference.
Invention content
It is an object of the present invention in view of the above shortcomings of the prior art, provide in a kind of motor slot wedge mould pressing process
Coiled strip stick and the motor slot wedge mould pressing process can quickly determine the optimum diameter of coiled strip stick, and determine that unlike material span comes
The corresponding best molding parameters of adhesive plaster on acid imide, production efficiency is high, is molded prepared motor slot wedge apparent mass
Good, surface is without groove, fold or resin side, high mechanical strength, and thermal stability is good.
In order to solve the above technical problems, the technical solution adopted in the present invention is：
A kind of coiled strip stick in motor slot wedge mould pressing process, including cylindric coiled strip stick ontology are structurally characterized in that described
The diameter of phi of coiled strip stick ontologyStickMeet formula：Wherein, ΦsTo be converted by motor slot wedge perimeter of section
At circular diameter, Φs× π=motor slot wedge perimeter of section.
When the diameter of coiled strip stick ontology meets above-mentioned formula, the diameter of coiled strip stick ontology is most suitable, and surface is without groove, pleat
Wrinkle or resin side, it is high-quality.Operating personnel can be directly according to the suitable coiled strip stick of formula fast selecting, and work efficiency is high.
Further, one end of coiled strip stick ontology opens up the groove for sized glass cloth to be clamped.
Further, the handle convenient for holding is connected on the coiled strip stick ontology.
The thickness of the groove is 0.2~0.4mm as a preferred method,.
Based on the same inventive concept, the present invention also provides a kind of motor slot wedge mould pressing process, including：
Sized glass cloth is cut into the size of needs according to slot wedge length and weight by step 1；
Sized glass cloth bag is rolled into cylinder by step 2 with coiled strip stick；
Step 3 is suppressed, demoulded and is heat-treated to cylinder successively；
Its main feature is that in the step 2, using the coiled strip stick in the motor slot wedge mould pressing process by sized glass cloth
Winding is at cylinder.
As a preferred method, in the step 2, sized glass cloth is adhesive plaster in bismaleimide.
As the first preferred embodiment, in bismaleimide in adhesive plaster：Volatile content≤1.5%, resin content are
33%~42%, insoluble resin content≤10%；In the step 3, clamp time is 8~10min/mm；Molding temperature is
190~200 DEG C；Three step gradients of molding pressure point are forced into 25 ± 5MPa/cm2；In molding 30~50s final vacuum hot pressing；
3~6h is heat-treated at 220 DEG C.
As second of preferred embodiment, in bismaleimide in adhesive plaster：Volatile content≤1.5%, resin content are
33%~42%, insoluble resin content is 10%~20%；In the step 3, clamp time is 8~10min/mm；Molding
Temperature is 190~200 DEG C；Three step gradients of molding pressure point are forced into 25 ± 5MPa/cm2；In molding 20~40s final vacuums heat
Pressure；3~6h is heat-treated at 220 DEG C.
As the third preferred embodiment, in bismaleimide in adhesive plaster：Volatile content≤1.5%, resin content are
30%~40%, insoluble resin content is 20%~30%；In the step 3, clamp time is 5~8min/mm；Molding
Temperature is 200~210 DEG C；By molding pressure, gradient is forced into 30 ± 5MPa/cm in two steps2；In molding 10~30s final vacuums heat
Pressure；3~6h is heat-treated at 220 DEG C.
As the 4th kind of preferred embodiment, in bismaleimide in adhesive plaster：Volatile content≤1.5%, resin content are
36%~42%, insoluble resin content is 30%~40%；In the step 3, clamp time is 5~8min/mm；Molding
Temperature is 190~210 DEG C；By molding pressure, gradient is forced into 30 ± 5MPa/cm in two steps2；In molding 5~20s final vacuums heat
Pressure；3~6h is heat-treated at 220 DEG C.
Inventor by being found after a large amount of process certification, the fugitive constituent of adhesive plaster in bismaleimide, resin content, can
This three indexs of soluble resin content are not isolated, mutually restrict, and the present invention explores unlike material span and carrys out acyl
The corresponding best molding parameters of adhesive plaster on imines, it is good to be molded prepared motor slot wedge apparent mass, surface without groove,
Fold or resin side, high mechanical strength, thermal stability are good.
Compared with prior art, the present invention can quickly determine the optimum diameter of coiled strip stick, and determine unlike material span
Carry out the corresponding best molding parameters of adhesive plaster on acid imide, production efficiency is high, is molded the apparent matter of prepared motor slot wedge
It measures, surface is without groove, fold or resin side, high mechanical strength, and thermal stability is good.
Description of the drawings
Fig. 1 is the cross-sectional view of motor slot wedge when coiled strip stick diameter is excessive.
Fig. 2 is the cross-sectional view of motor slot wedge when coiled strip stick diameter is too small.
Fig. 3 is the coiled strip stick structural schematic diagram used in motor slot wedge mould pressing process of the present invention.
Fig. 4 is the left view of Fig. 3.
Wherein, 1 is coiled strip stick ontology, and 101 be groove, and 2 be handle.
Specific implementation mode
As shown in Figure 3 and Figure 4, the coiled strip stick in motor slot wedge mould pressing process includes cylindric coiled strip stick ontology, the volume
The diameter of phi of charge bar ontologyStickMeet formula：Wherein, ΦsTo be converted by motor slot wedge perimeter of section
Circular diameter, electrode slot wedge perimeter of section is the perimeter of section of mold cavity used.Φs× π=motor slot wedge section week
It is long.
One end of coiled strip stick ontology opens up the groove for sized glass cloth to be clamped.With wire cutting open channels, the groove
Thickness be 0.2~0.4mm.
It is connected with handle on the coiled strip stick ontology.
Motor slot wedge mould pressing process provided by the invention, including：
Sized glass cloth is cut into the size of needs according to slot wedge length and weight by step 1；
Sized glass cloth bag is rolled into cylinder by step 2 with coiled strip stick；
Step 3 is suppressed, demoulded and is heat-treated to cylinder successively；
In the step 2, sized glass cloth bag is rolled into circle using the coiled strip stick in the motor slot wedge mould pressing process
Cylinder.
In the step 2, sized glass cloth is adhesive plaster in bismaleimide.
The corresponding molding parameters of adhesive plaster are as follows in the bismaleimide of unlike material：
1. in bismaleimide in adhesive plaster：Volatile content≤1.5%, resin content be 33%~42%, it is insoluble
Resin content≤10%；In the step 3, clamp time is 8~10min/mm；Molding temperature is 190~200 DEG C；It will molding
Three step gradients of pressure point are forced into 25 ± 5MPa/cm2；In molding 30~50s final vacuum hot pressing；At 220 DEG C heat treatment 3~
6h。
2. in bismaleimide in adhesive plaster：Volatile content≤1.5%, resin content be 33%~42%, it is insoluble
Resin content is 10%~20%；In the step 3, clamp time is 8~10min/mm；Molding temperature is 190~200 DEG C；
Three step gradients of molding pressure point are forced into 25 ± 5MPa/cm2；In molding 20~40s final vacuum hot pressing；At 220 DEG C at heat
Manage 3~6h.
3. in bismaleimide in adhesive plaster：Volatile content≤1.5%, resin content be 30%~40%, it is insoluble
Resin content is 20%~30%；In the step 3, clamp time is 5~8min/mm；Molding temperature is 200~210 DEG C；
By molding pressure, gradient is forced into 30 ± 5MPa/cm in two steps2；In molding 10~30s final vacuum hot pressing；At 220 DEG C at heat
Manage 3~6h.
4. in bismaleimide in adhesive plaster：Volatile content≤1.5%, resin content be 36%~42%, it is insoluble
Resin content is 30%~40%；In the step 3, clamp time is 5~8min/mm；Molding temperature is 190~210 DEG C；
By molding pressure, gradient is forced into 30 ± 5MPa/cm in two steps2；In molding 5~20s final vacuum hot pressing；It is heat-treated at 220 DEG C
3~6h.
Specifically, the span that be 1% with volatile content, resin content 35%, insoluble resin content are 18% comes
On acid imide for adhesive plaster, slot wedge mould pressing process is as follows：
(1) material, weighing are cut out：Sized glass cloth is cut into the size of needs according to slot wedge length and weight；
(2) it rolls：Suitable coiled strip stick is selected according to coiled strip stick diameter calculation formula, with coiled strip stick by bismaleimide
Upper adhesive plaster heats on tablet equably winding into cylinder at 100~140 DEG C；
(3) it suppresses：Rolled cylinder is put into the mold cavity of preheating, upper mold is got togather, is placed on hydraulic press electric heating
The center of plate lower part, opening hydraulic press makes the top board of hydraulic press touch mould upper surface, in the case that non-pressurized,
Pressurized deflation 3-8 times immediately divides the pressurization of three step gradients, pressure is checked in pressurization in the case that without apparent excessive glue after preheating 30s
Table numerical value after process stipulation pressure to be achieved, stops pressurization, and kept the temperature, pressurize；
(4) it demoulds：After product reaches regulation heat preservation, dwell time, you can product is taken out in release demoulding, removes excessive glue
Side；
(5) it is heat-treated：Slot wedge is put into baking oven, 3~6h is kept the temperature after being gradually heated to 220 DEG C from room temperature.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited in above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than limitation, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, within these are all belonged to the scope of protection of the present invention.
Claims (10)
1. the coiled strip stick in a kind of motor slot wedge mould pressing process, including cylindric coiled strip stick ontology, which is characterized in that the coiled strip
The diameter of phi of stick ontologyStickMeet formula：Wherein, ΦsIt is converted by motor slot wedge perimeter of section
Circular diameter, Φs× π=motor slot wedge perimeter of section.
2. the coiled strip stick in motor slot wedge mould pressing process as described in claim 1, which is characterized in that one end of coiled strip stick ontology
Open up the groove for sized glass cloth to be clamped.
3. the coiled strip stick in motor slot wedge mould pressing process as claimed in claim 1 or 2, which is characterized in that the coiled strip stick sheet
Handle is connected on body.
4. the coiled strip stick in motor slot wedge mould pressing process as claimed in claim 2, which is characterized in that the thickness of the groove is
0.2~0.4mm.
5. a kind of motor slot wedge mould pressing process, including：
Sized glass cloth is cut into the size of needs according to slot wedge length and weight by step 1；
Sized glass cloth bag is rolled into cylinder by step 2 with coiled strip stick；
Step 3 is suppressed, demoulded and is heat-treated to cylinder successively；
It is characterized in that, in the step 2, using in such as Claims 1 to 4 any one of them motor slot wedge mould pressing process
Coiled strip stick sized glass cloth bag is rolled into cylinder.
6. motor slot wedge mould pressing process as claimed in claim 5, which is characterized in that in the step 2, sized glass cloth is
Adhesive plaster in bismaleimide.
7. motor slot wedge mould pressing process as claimed in claim 6, which is characterized in that in bismaleimide in adhesive plaster：Volatilization
Part content≤1.5%, resin content are 33%~42%, insoluble resin content≤10%；
In the step 3, clamp time is 8~10min/mm；Molding temperature is 190~200 DEG C；By three steps of molding pressure point
Gradient is forced into 25 ± 5MPa/cm2；In molding 30~50s final vacuum hot pressing；3~6h is heat-treated at 220 DEG C.
8. motor slot wedge mould pressing process as claimed in claim 6, which is characterized in that in bismaleimide in adhesive plaster：Volatilization
Part content≤1.5%, resin content are 33%~42%, insoluble resin content is 10%~20%；
In the step 3, clamp time is 8~10min/mm；Molding temperature is 190~200 DEG C；By three steps of molding pressure point
Gradient is forced into 25 ± 5MPa/cm2；In molding 20~40s final vacuum hot pressing；3~6h is heat-treated at 220 DEG C.
9. motor slot wedge mould pressing process as claimed in claim 6, which is characterized in that in bismaleimide in adhesive plaster：Volatilization
Part content≤1.5%, resin content are 30%~40%, insoluble resin content is 20%~30%；
In the step 3, clamp time is 5~8min/mm；Molding temperature is 200~210 DEG C；Molding pressure is terraced in two steps
Degree is forced into 30 ± 5MPa/cm2；In molding 10~30s final vacuum hot pressing；3~6h is heat-treated at 220 DEG C.
10. motor slot wedge mould pressing process as claimed in claim 6, which is characterized in that in bismaleimide in adhesive plaster：Volatilization
Part content≤1.5%, resin content are 36%~42%, insoluble resin content is 30%~40%；
In the step 3, clamp time is 5~8min/mm；Molding temperature is 190~210 DEG C；Molding pressure is terraced in two steps
Degree is forced into 30 ± 5MPa/cm2；In molding 5~20s final vacuum hot pressing；3~6h is heat-treated at 220 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810756216.9A CN108667232B (en) | 2018-07-11 | 2018-07-11 | Coil stock rod in motor slot wedge molding process and motor slot wedge molding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810756216.9A CN108667232B (en) | 2018-07-11 | 2018-07-11 | Coil stock rod in motor slot wedge molding process and motor slot wedge molding process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108667232A true CN108667232A (en) | 2018-10-16 |
| CN108667232B CN108667232B (en) | 2024-01-30 |
Family
ID=63773975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810756216.9A Active CN108667232B (en) | 2018-07-11 | 2018-07-11 | Coil stock rod in motor slot wedge molding process and motor slot wedge molding process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108667232B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5925467A (en) * | 1995-07-14 | 1999-07-20 | Abb Research Ltd. | Electrically and thermally conductive plastic and use of this plastic |
| EP1638190A1 (en) * | 2004-09-15 | 2006-03-22 | Siemens Aktiengesellschaft | Apparatus for fixing of bar conductors in slots of electric machines |
| CN102290901A (en) * | 2011-08-22 | 2011-12-21 | 海宁永大电气新材料有限公司 | Composite slot wedge used for motor rotor and manufacturing method thereof |
| CN107557610A (en) * | 2017-08-15 | 2018-01-09 | 徐高杰 | A kind of preparation technology of short route slot wedge copper alloy |
-
2018
- 2018-07-11 CN CN201810756216.9A patent/CN108667232B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5925467A (en) * | 1995-07-14 | 1999-07-20 | Abb Research Ltd. | Electrically and thermally conductive plastic and use of this plastic |
| EP1638190A1 (en) * | 2004-09-15 | 2006-03-22 | Siemens Aktiengesellschaft | Apparatus for fixing of bar conductors in slots of electric machines |
| CN102290901A (en) * | 2011-08-22 | 2011-12-21 | 海宁永大电气新材料有限公司 | Composite slot wedge used for motor rotor and manufacturing method thereof |
| CN107557610A (en) * | 2017-08-15 | 2018-01-09 | 徐高杰 | A kind of preparation technology of short route slot wedge copper alloy |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108667232B (en) | 2024-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5718354B2 (en) | Method for manufacturing composite curved parts | |
| JP5968566B1 (en) | Manufacturing method of fiber reinforced composite material molded product and press mold used therefor | |
| WO2009069461A1 (en) | Mold for press apparatus, and open-drawing method | |
| CN113183484B (en) | Compression molding method for variable-cross-section carbon fiber composite missile wing | |
| DK2528726T3 (en) | IMPROVEMENTS RELATED TO COMPOSITIONING TECHNIQUES | |
| CN108667232A (en) | Coiled strip stick and the motor slot wedge mould pressing process in a kind of motor slot wedge mould pressing process | |
| CN208353166U (en) | A kind of coiled strip stick in motor slot wedge mould pressing process | |
| EP2186627B1 (en) | Method for continuously forming composite material shape member having varied cross-sectional shape | |
| CN206733365U (en) | A kind of high ceramic tile cutter of sharpnes of cuts | |
| CN209987267U (en) | Adjustable efficient rubber calender | |
| CN107662354B (en) | Method and apparatus for making high fiber content composite material cylinder anti-wrinkling | |
| CN206351517U (en) | Vacuum bag compression mould | |
| CN216282591U (en) | Quick drying device for lining paper for cigarettes | |
| CN209050792U (en) | A kind of prepreg cutter device | |
| CN104589635B (en) | Silicon dioxide vacuum heat-insulating plate technology | |
| JP4298048B2 (en) | Composite material molding method and molding apparatus | |
| CN207091728U (en) | A kind of fixing device for being used to produce terylene needled felt | |
| JP2019183350A (en) | Method for producing pulp molded body | |
| CN102771908B (en) | Heat-setting press plate and cup heat-setting machine using same | |
| CN203399419U (en) | Device for forming circuit on touch panel | |
| CN212241503U (en) | Surface treatment equipment for producing prefabricated laminated slab | |
| CN214353859U (en) | Quick clamping die for silicone rubber and steel materials easy to demould | |
| CN213102904U (en) | Vertical edge bonding machine for producing plastic hollow plates | |
| CN212581128U (en) | Casting machine material collecting device for winding film production | |
| CN201098996Y (en) | Plastic coated paper whole-breadth joint subsection heating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |