CN102328478A - Polysulfonamide fiber-containing dry mica tape and application thereof - Google Patents
Polysulfonamide fiber-containing dry mica tape and application thereof Download PDFInfo
- Publication number
- CN102328478A CN102328478A CN201010224205XA CN201010224205A CN102328478A CN 102328478 A CN102328478 A CN 102328478A CN 201010224205X A CN201010224205X A CN 201010224205XA CN 201010224205 A CN201010224205 A CN 201010224205A CN 102328478 A CN102328478 A CN 102328478A
- Authority
- CN
- China
- Prior art keywords
- mica
- tape
- fiber
- layer
- polyarylsulfone
- 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.)
- Pending
Links
Images
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Insulating Bodies (AREA)
Abstract
The invention discloses a polysulfonamide fiber-containing dry mica tape, which comprises a mica layer, a bonding agent layer and a reinforcing material layer in sequence from the top to the bottom, wherein the mica layer consists of mica powder, polyphenyl sulfone p-phenylene formamide fiber and a bonding agent; the content of the polyphenyl sulfone p-phenylene formamide fiber accounts for 2-50 percent by weight of total mass of the mica layer; and the content of the bonding agent accounts for 2-25 percent by weight of the total mass of the mica tape. The invention has the remarkable technical advantages that: 1, the dry mica tape has high permeability; in the presence of the polysulfonamide fiber, a relatively loose structure and gaps with certain continuity can be formed in an insulating layer, so that the permeability of the dry mica tape can be improved, and impregnation of impregnated resin is better facilitated; 2, heat-resisting organic fiber in a certain proportion is added into the mica layer, namely, the mechanical strength of the mica layer is improved; and 3, heat-resisting organic fiber used in the mica tape is superior to Nomex fiber on the aspects of heat resistance, impregnating performance, radiance resistance, high-temperature size stability, flame retardance and chemical stability, has excellent electrical insulating performance simultaneously, and is more suitable for manufacturing a mica type with a motor in an insulating way than Nomex fiber.
Description
Technical field
The present invention relates to a kind of dry mica paper tape that contains polyarylsulfone (PAS) synthetic fibre (claiming the PPSU terephthalamide again) fiber, and relate to the application of this mica tape in high-temperature resistant motor and high-rating generator major insulation.
Background technology
In recent years, increasingly extensive production and application along with various high-temperature resistant motors and large-sized water turbine, steam turbine generator have proposed increasingly high requirement to corresponding insulation manufacturing technology and insulating materials.
Vacuum pressure impregnation (VPI) technology is accepted by domestic electric machine manufacturing firm with its plurality of advantages day by day.It mainly uses two kinds of insulating materials, low resin mica tape and VPI impregnating resin.Conductor coils or line rod that its treatment process mainly uses few adhesive tape to hold motor are continuously made " openpore "; Then pack into stator or rotor internal wiring of coil put into impregnating autoclave through the VPI PROCESS FOR TREATMENT; Take out then and be heating and curing; It is high to make this kind of this kind insulation winding method production efficiency, and good insulation integrity is referred to as " the whole VPI that soaks "; Because the size restrictions of impregnating autoclave can't be carried out " openpore rule " and " VPI is whole to be soaked " to large-sized generator coil or bar line stick, can only single line rod be carried out the VPI dipping, assembles after being heating and curing again, this kind method is referred to as " line rod VPI ".
But; Because various high-temperature resistant grade motor such as EMUs traction electric machine, the output of specific type of electric machines such as steel mill electric machine, used for wind power generation generator, variable-frequency motor growing, their employed insulating materials all progressively develop to the direction of higher temperature resistant grade, higher hot mechanical strength; The silicone based solvent-free impregnating resin of a large amount of uses of the at present domestic motor of heatproof index more than 200 grades; Its viscosity big (under the room temperature more than the 500mPa.s) must the heating dipping, though electrical machine insulation thinner thickness (one is below 2mm); But if resin temperature is not enough; Viscosity is still bigger than normal, has the not full possibility of insulation impregnating, has certain risk so " the whole VPI that soaks " is applied on the high-temperature resistant grade motor.
At high-rating generator insulation manufacture view, because electric pressure is very high, (electric pressure of 1000MW ultra supercritical steam turbine generator is 27kV so major insulation thickness is very thick; Major insulation thickness reaches 7.5mm), Application V PI technology is made the major insulation of high-rating generator, and the difficulty of insulating barrier varnished insulation resin is well imagined; Although the impregnating resin temperature of using is lower; Satisfied the soaking into when can not infinitely reducing viscosity, in the case, the height of the air permeability of low resin mica tape; How the major insulation that is promptly held by few adhesive tape is flooding complexity, more becomes the problem that must pay close attention to.In addition; Because the thermal coefficient of expansion of high-rating generator electric conductor and insulating materials is inconsistent; Size is very big again; More importantly be because electric pressure is high, electromagnetic action causes situation such as mechanical stress and flexural vibrations bigger than the slightly little motor influence of build, and it is very outstanding that the hot mechanical performance problems of insulating materials also seems.
The dry mica paper tape ubiquity gas permeability that domestic prior art is produced is poor, the not enough shortcoming of the hot mechanical performance of the insulation system thing after the VPI resin treatment is solidified.Prior art can not satisfy actual needs comprehensively.
Summary of the invention
Technical problem to be solved of the present invention is, a kind of high temperature resistant and dry mica paper tape that contains polyarylsulfone (PAS) synthetic fibre fiber with higher hot mechanical strength is provided.
Another technical problem to be solved by this invention is that a kind of application that contains the dry mica paper tape of polyarylsulfone (PAS) synthetic fibre fiber is provided.
The present invention solves the problems of the technologies described above through following technical proposal:
A kind of dry mica paper tape that contains polyarylsulfone (PAS) synthetic fibre fiber; Be followed successively by mica layer, adhesive layer and supporting material layer from top to bottom; Wherein, mica layer is made up of mica powder and PPSU terephthalamide fiber and adhesive, wherein; The gross mass ratio that the content of said PPSU terephthalamide fiber accounts for mica layer is 2%～50wt%, and described adhesive content accounts between the 2wt%～25wt% of mica tape gross mass.This fiber that uses among the present invention has the average length of 0.01～12mm and the average diameter of 0.1～50 μ m.
Described mica powder is non-calcinated type white powder mica or calcinated type white powder mica.
Described PPSU terephthalamide fiber is by paraphthaloyl chloride and 4; 4` DADPS and 3; The 3` DADPS is for after the primary raw material polymerization processes linear fibre-forming polymer; Be dissolved in according to a certain percentage in the solvent, form through wet spinning process and dry-spinning processes then, it has the molecular formula of following several kinds of repeat unit structure characteristics:
Described supporting material is decided in line cloth, polyester fiber nonwoven, Kapton, pet film any one with alkali-free glass cloth, electrician with alkali-free glass for the electrician.
At least comprise a kind of epoxy resin in the described adhesive.
The described dry mica paper tape that contains polyarylsulfone (PAS) synthetic fibre fiber is used to make the major insulation of high-temperature resistant grade motor or large-sized water turbine, steam turbine generator winding.Such as EMUs hauling machine motor stator winding.
When being used to make EMUs hauling machine motor stator winding, its key step is following:
The mica tape that a. will contain polyarylsulfone (PAS) synthetic fibre fiber powder with certain packet stack rate surround closely continuously stator coils of motor and rotor coil around; Wrapped mica tape should guarantee a side of mica layer more near wrapped coil, and the wrapped number of plies is looked insulation thickness and decided;
The rotor coil that b. will hold is packed into fixing and is connected end line, the formation stator winding in the corresponding groove of stator winding;
The stator winding that c. will carefully connect the wire is packed in the impregnating autoclave; With impregnating resin winding is carried out vacuum pressure impregnation; From impregnating autoclave, take out then, put into baker and bake and bank up with earth curing, impregnating resin that permeates in the insulating barrier around the rotor coil and the insulating barrier that described mica tape constitutes are solidified under the condition that heats; Formation has the insulating barrier of insulation effect, finally obtains high-temperature resistant grade motor stator winding.
The described dry mica paper tape that contains polyarylsulfone (PAS) synthetic fibre fiber is used to make the stator bar formula line rod of large-scale wind driven generator.
When being used to make the stator bar formula line rod of large-scale wind driven generator, its key step is following:
A. with described mica tape with certain packet stack rate surround closely continuously generator stator bar formula line rod around, wrapped mica tape should guarantee a side of mica layer more near wrapped line rod, the wrapped number of plies is looked insulation thickness and is decided;
The stator bar formula line rod that b. will hold is outer to hold the polytetrafluoroethylene film that one deck has hole in addition, fixing in the mould with solid shape of packing into;
C., the mould that stator bar formula line rod will be housed is packed in the impregnating autoclave; With impregnating resin the line rod is carried out vacuum pressure impregnation; From impregnating autoclave, take out then, put into baker and bake and bank up with earth curing, impregnating resin that permeates in the insulating barrier around the bar formula line rod and the insulating barrier that described mica tape constitutes are solidified under the condition that heats; Formation has the insulating barrier of insulation effect, removes the stator bar formula line rod that mould and tetrafluoroethene film promptly obtain high-rating generator.
Technological merit of the present invention is remarkable: 1. the dry mica paper tape among the present invention; Gas permeability increases substantially; Because the existence of polyarylsulfone (PAS) synthetic fibre fiber; Can make to form comparatively loose structure in the insulating barrier and have certain successional space, can improve the gas permeability of dry mica paper tape like this, make it more help the dipping of impregnating resin;
2. the low resin mica tape produced than present domestic technique of the mica tape among the present invention; In mica layer, increased a certain proportion of heatproof organic fiber; Be equivalent to improve the mechanical strength of mica tape; Not only make mica tape in holding the insulation process, can bear bigger pulling force, making insulation wrapping tightr, and mica tape through wrapped and VPI PROCESS FOR TREATMENT continuously; Finally be heating and curing and implanted more " support frame " and " supporting material " in the insulation system of moulding, also improved the hot mechanical strength of insulation system.
3. the heatproof organic fiber that mica tape of the present invention uses all is being better than the Nomex fiber aspect hear resistance, dipping property, radiation resistance, high temperature dimensional stability, anti-flammability and the chemical stability; Have simultaneously excellent electrical insulation properties again, thus than the Nomex fiber be fit to more use the electrical machine insulation manufacturing with mica tape in.
Description of drawings
Fig. 1 is for containing polyarylsulfone (PAS) synthetic fibre cloud of fibers master tape construction sketch map.
Fig. 2 surrounds the structural representation on conductor lines rod or the coil for mica tape.
Description of symbols among the figure
1-mica layer 2-supporting material layer
3-adhesive 4---contain the mica tape of polyarylsulfone (PAS) synthetic fibre fiber powder
5---insulating barrier 6---line rod
7---held the line rod of mica tape
The specific embodiment
Embodiment 1:
Shown in Fig. 1-2; A kind of dry mica paper tape that contains polyarylsulfone (PAS) synthetic fibre fiber is followed successively by mica layer 1, adhesive layer 3 and supporting material layer 2 from top to bottom, wherein; Mica layer 1 is fibrous by mica powder and PPSU terephthalamide, and has a small amount of adhesive to be present in the mica layer 1.
Adhesive wherein is epoxide modified polyester adhesive.
The manufacturing approach of the said goods is: quantitatively be 160g/m
2Non-calcinated type muscovite paper (wherein contain 10g/m
2Polyarylsulfone (PAS) synthetic fibre fiber, the average diameter of its fiber is 9 μ m, average length is 3.5mm), quantitatively be 22g/m
2Alkali-free decide the line glass cloth, with epoxide modified polyester adhesive that mica paper and glass cloth is bonding, produce and contain polyarylsulfone (PAS) synthetic fibre fiber dry mica paper tape, wherein, adhesive content is 8% of mica tape gross weight, mica tape thickness is 0.15mm.Choose three samples and keep sample as sample A testing air permeable degree and hot strength.
Choose quantitatively and be the non-calcinated type muscovite paper of 178g/m2, other materials is identical with above-mentioned mica tape with technology, produces common dry mica paper tape, and wherein adhesive content is 9.5% of mica tape gross weight, and mica tape thickness is 0.15mm.Choose three samples and keep sample as sample B, testing air permeable degree and hot strength,
Test result such as table 1
Experimental data shows that under identical mica tape thickness condition, the air permeability of dry mica paper tape is apparently higher than common dry mica paper tape among the present invention program, and the air permeability time of common few adhesive tape is about 3.5 times of the few adhesive tape of fibre-bearing.The hot strength aspect, dry mica paper tape is a little more than common few adhesive tape among the present invention program.
The described dry mica paper tape that contains polyarylsulfone (PAS) synthetic fibre fiber is used to make the major insulation of high-temperature resistant grade motor or large-sized water turbine, steam turbine generator winding.Such as EMUs hauling machine motor stator winding.
When being used to make EMUs hauling machine motor stator winding, its key step is following:
The mica tape 4 that a. will contain polyarylsulfone (PAS) synthetic fibre fiber powder with certain packet stack rate surround closely continuously stator coils of motor and rotor coil around; Wrapped mica tape should guarantee a side of mica layer more near wrapped coil, and the wrapped number of plies is looked insulation thickness and decided;
The rotor coil that b. will hold is packed into fixing and is connected end line, the formation stator winding in the corresponding groove of stator winding;
The stator winding that c. will carefully connect the wire is packed in the impregnating autoclave; With impregnating resin winding is carried out vacuum pressure impregnation; From impregnating autoclave, take out then, put into baker and bake and bank up with earth curing, impregnating resin that permeates in the insulating barrier around the rotor coil and the insulating barrier that described mica tape constitutes are solidified under the condition that heats; Formation has the insulating barrier of insulation effect, finally obtains high-temperature resistant grade motor stator winding.
The described dry mica paper tape that contains polyarylsulfone (PAS) synthetic fibre fiber is used to make the stator bar formula line rod of large-scale wind driven generator.
When the stator bar formula line rod that is used to make large-scale wind driven generator 6, its key step is following:
The mica tape 4 that a. will contain polyarylsulfone (PAS) synthetic fibre fiber powder with certain packet stack rate surround closely continuously generator stator bar formula line rod 6 around, the mica tape that holds should guarantee a side of mica layer more near wrapped line rod 6, holds the number of plies and looks insulation thickness and decide;
Line rod 7 skins that b. will hold mica tape hold the polytetrafluoroethylene film that one deck has hole in addition, and are fixing in the mould with solid shape of packing into;
C., the mould that stator bar formula line rod will be housed is packed in the impregnating autoclave; With impregnating resin the line rod is carried out vacuum pressure impregnation; From impregnating autoclave, take out then, put into baker and bake and bank up with earth curing, impregnating resin that permeates in the insulating barrier 5 around the bar formula line rod and the insulating barrier 5 that described mica tape constitutes are solidified under the condition that heats; Formation has the insulating barrier 5 of insulation effect, removes the stator bar formula line rod that mould and tetrafluoroethene film promptly obtain high-rating generator.
Embodiment 2:
Wrapped (on 12mm * 40mm * 800mm), wrapped 18 layers, the insulation two ends that hold seal in the aluminium bar line stick with the form of half-stack package with the sample A mica tape among the embodiment 1.Dipping unsaturated polyester (UP)-epoxy-acid anhydrides-styrene type impregnating resin, impregnation pressure is 0.6MPa, dip time is 3 hours.Line rod behind the dipping is baked and banked up with earth curing.Get the part sample and cut dissection, to measure its impregnating depth.With this sample as sample C.
Use the sample B mica tape among the embodiment 1, same in the above described manner manufacturing and simulating line rod is got the part sample and is cut dissection, to measure its impregnating depth.With this sample as sample D.
Comparative result such as following table 2.
Can find out by last table; With identical VPI treatment process, identical impregnating resin and curing process, the insulation artificial line that obtains rod; Use the few adhesive tape insulating barrier among the present invention program all to be soaked into, and use the insulation thickness that common few adhesive tape soaks into to have only about 2/3rds of gross thickness.
Other are with embodiment 1.
Embodiment 3:
The few adhesive tape of sample A among the embodiment 1 is wrapped on the iron plate that scribbles releasing agent, wrapped 10 layers, adopt impregnating resin and VPI PROCESS FOR TREATMENT among the embodiment 2, bake and bank up with earth curing, through cutting the sample that is cut into certain size, with this as sample E.
The few adhesive tape of sample B among the embodiment is made into sample by above-mentioned same treatment mode, with this as sample F.
With the bending strength under sample E and its different temperatures of sample F test.Test result such as table 3.
Table 3
| ? | Sample E | Sample F |
| Probe temperature | Bending strength (MPa) | Bending strength (MPa) |
| 23℃ | ?230.8 | ?227.8 |
| 80℃ | ?83.6 | ?65.2 |
| 130℃ | ?43.0 | ?27.2 |
| 155℃ | ?40.1 | ?25.6 |
| 180℃ | ?31.0 | ?20.0 |
Test result shows; Sample with the few adhesive tape making that contains polysulphonamide fiber; The sample that its hot bending strength and hot bending strength conservation rate are made apparently higher than common few adhesive tape is explained the adding of polysulphonamide fiber, can increase substantially the hot mechanical strength of mica insulation thing.
Other are with embodiment 1.
Claims (10)
1. dry mica paper tape that contains polyarylsulfone (PAS) synthetic fibre fiber; Be followed successively by mica layer, adhesive layer and supporting material layer from top to bottom; Mica layer is made up of mica powder and PPSU terephthalamide fiber and adhesive; Wherein, the gross mass ratio that the content of said PPSU terephthalamide fiber accounts for mica layer is 2%～50wt%, and described adhesive content accounts between the 2wt%～25wt% of mica tape gross mass.
2. the dry mica paper tape that contains polyarylsulfone (PAS) synthetic fibre fiber according to claim 1 is characterized in that: described mica powder is non-calcinated type white powder mica or calcinated type white powder mica.
3. the dry mica paper tape that contains polyarylsulfone (PAS) synthetic fibre fiber according to claim 1; It is characterized in that: described PPSU terephthalamide fiber is by paraphthaloyl chloride and 4; 4` DADPS and 3, the 3` DADPS is dissolved in the solvent for after the primary raw material polymerization processes linear fibre-forming polymer according to a certain percentage; Form through wet spinning process and dry-spinning processes then, it has the molecular formula of following several kinds of repeat unit structure characteristics:
4. the dry mica paper tape that contains polyarylsulfone (PAS) synthetic fibre fiber according to claim 3 is characterized in that: described supporting material is decided in line cloth, polyester fiber nonwoven, Kapton, pet film any one with alkali-free glass cloth, electrician with alkali-free glass for the electrician.
5. the dry mica paper tape that contains polyarylsulfone (PAS) synthetic fibre fiber according to claim 1 is characterized in that: comprise a kind of epoxy resin in the described adhesive at least.
6. the described application that contains the dry mica paper tape of polyarylsulfone (PAS) synthetic fibre fiber of one of claim 1 to 5 is characterized in that, is used to make the major insulation of high-temperature resistant grade motor or large-sized water turbine, steam turbine generator winding.
7. the application that contains the dry mica paper tape of polyarylsulfone (PAS) synthetic fibre fiber according to claim 6 is characterized in that, is used to make EMUs hauling machine motor stator winding.
8. to the described application that contains the dry mica paper tape of polyarylsulfone (PAS) synthetic fibre fiber of claim 7, a kind of method of making EMUs hauling machine motor stator winding is provided, it is characterized in that, mainly following according to step:
A. with described mica tape surround closely continuously stator coils of motor and rotor coil around, wrapped mica tape should guarantee a side of mica layer more near wrapped coil, the wrapped number of plies is looked insulation thickness and is decided;
The rotor coil that b. will hold is packed into fixing and be connected end line in the corresponding groove in the stator winding, makes the stator winding that carefully connects the wire;
The stator winding that c. will carefully connect the wire is packed in the impregnating autoclave; With impregnating resin winding is carried out vacuum pressure impregnation; From impregnating autoclave, take out then, put into baker and bake and bank up with earth curing, impregnating resin that permeates in the insulating barrier around the rotor coil and the insulating barrier that described mica tape constitutes are solidified under the condition that heats; Formation has the insulating barrier of insulation effect, finally obtains high-temperature resistant grade motor stator winding.
9. the application that contains the dry mica paper tape of polyarylsulfone (PAS) synthetic fibre fiber according to claim 6 is characterized in that, is used to make the stator bar formula line rod of large-scale wind driven generator.
10. to the described application that contains the dry mica paper tape of polyarylsulfone (PAS) synthetic fibre fiber of claim 9, a kind of method of making the stator bar formula line rod of large-scale wind driven generator is provided, it is characterized in that, mainly following according to step:
A. with the described mica tape of claim 1 with certain packet stack rate surround closely continuously generator stator bar formula line rod around, wrapped mica tape should guarantee a side of mica layer more near wrapped line rod, the wrapped number of plies is looked insulation thickness and is decided;
The stator bar formula line rod that b. will hold is outer to hold the polytetrafluoroethylene film that one deck has hole in addition, fixing in the mould with solid shape of packing into;
C., the mould that stator bar formula line rod will be housed is packed in the impregnating autoclave; With impregnating resin the line rod is carried out vacuum pressure impregnation; From impregnating autoclave, take out then, put into baker and bake and bank up with earth curing, impregnating resin that permeates in the insulating barrier around the bar formula line rod and the insulating barrier that the described mica tape of claim 1 constitutes are solidified under the condition that heats; Formation has the insulating barrier of insulation effect, removes the stator bar formula line rod that mould and tetrafluoroethene film promptly obtain high-rating generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010224205XA CN102328478A (en) | 2010-07-13 | 2010-07-13 | Polysulfonamide fiber-containing dry mica tape and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010224205XA CN102328478A (en) | 2010-07-13 | 2010-07-13 | Polysulfonamide fiber-containing dry mica tape and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102328478A true CN102328478A (en) | 2012-01-25 |
Family
ID=45480565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010224205XA Pending CN102328478A (en) | 2010-07-13 | 2010-07-13 | Polysulfonamide fiber-containing dry mica tape and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102328478A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260260A (en) * | 2014-09-11 | 2015-01-07 | 上海大学 | Preparation method of polysulfonamide plate |
| CN105002719A (en) * | 2015-08-06 | 2015-10-28 | 哈尔滨工业大学 | Aramid fiber surface modification method |
| CN105719781A (en) * | 2016-04-05 | 2016-06-29 | 杭州世纪云母绝缘材料有限公司 | High temperature resistant powder mica tape containing high strength fibers |
| WO2017004187A1 (en) * | 2015-06-30 | 2017-01-05 | E I Du Pont De Nemours And Company | Corona-resistant resin-compatible laminates |
| CN111546722A (en) * | 2020-05-06 | 2020-08-18 | 平江县盛盈云母工业有限公司 | Reinforced high-thermal-conductivity mica tape and preparation method thereof |
| CN111560793A (en) * | 2020-05-06 | 2020-08-21 | 平江县盛盈云母工业有限公司 | Little-glue mica paper reinforced by fibers |
| CN113916929A (en) * | 2021-09-17 | 2022-01-11 | 东方电气集团东方电机有限公司 | Method for evaluating main insulation curing degree of generator stator bar |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000040420A (en) * | 1998-07-09 | 2000-02-08 | Abb Res Ltd | Carrier free mica insulator |
| CN101211677A (en) * | 2006-12-28 | 2008-07-02 | 上海同立电工材料有限公司 | Single-side reinforced small amount epoxy glue mica tape and method of manufacture and its uses |
| CN101319086A (en) * | 2008-07-07 | 2008-12-10 | 上海同立电工材料有限公司 | F level heating solvent-free solvent-impregnated resin suitable for subatmospheric pressure |
| CN101748647A (en) * | 2010-02-09 | 2010-06-23 | 陕西科技大学 | Method for regenerating mica paper through reinforcement of aramid precipitated fiber |
-
2010
- 2010-07-13 CN CN201010224205XA patent/CN102328478A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000040420A (en) * | 1998-07-09 | 2000-02-08 | Abb Res Ltd | Carrier free mica insulator |
| CN101211677A (en) * | 2006-12-28 | 2008-07-02 | 上海同立电工材料有限公司 | Single-side reinforced small amount epoxy glue mica tape and method of manufacture and its uses |
| CN101319086A (en) * | 2008-07-07 | 2008-12-10 | 上海同立电工材料有限公司 | F level heating solvent-free solvent-impregnated resin suitable for subatmospheric pressure |
| CN101748647A (en) * | 2010-02-09 | 2010-06-23 | 陕西科技大学 | Method for regenerating mica paper through reinforcement of aramid precipitated fiber |
Non-Patent Citations (1)
| Title |
|---|
| 宋江超: "芳砜纶纤维的发展和应用", 《国外丝绸》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260260A (en) * | 2014-09-11 | 2015-01-07 | 上海大学 | Preparation method of polysulfonamide plate |
| WO2017004187A1 (en) * | 2015-06-30 | 2017-01-05 | E I Du Pont De Nemours And Company | Corona-resistant resin-compatible laminates |
| US10186353B2 (en) | 2015-06-30 | 2019-01-22 | E I Du Pont De Nemours And Company | Corona-resistant resin-compatible laminates |
| CN105002719A (en) * | 2015-08-06 | 2015-10-28 | 哈尔滨工业大学 | Aramid fiber surface modification method |
| CN105719781A (en) * | 2016-04-05 | 2016-06-29 | 杭州世纪云母绝缘材料有限公司 | High temperature resistant powder mica tape containing high strength fibers |
| CN111546722A (en) * | 2020-05-06 | 2020-08-18 | 平江县盛盈云母工业有限公司 | Reinforced high-thermal-conductivity mica tape and preparation method thereof |
| CN111560793A (en) * | 2020-05-06 | 2020-08-21 | 平江县盛盈云母工业有限公司 | Little-glue mica paper reinforced by fibers |
| CN111546722B (en) * | 2020-05-06 | 2022-10-04 | 平江县盛盈云母工业有限公司 | Reinforced high-thermal-conductivity mica tape and preparation method thereof |
| CN113916929A (en) * | 2021-09-17 | 2022-01-11 | 东方电气集团东方电机有限公司 | Method for evaluating main insulation curing degree of generator stator bar |
| CN113916929B (en) * | 2021-09-17 | 2023-04-07 | 东方电气集团东方电机有限公司 | Method for evaluating main insulation curing degree of generator stator bar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102328478A (en) | Polysulfonamide fiber-containing dry mica tape and application thereof | |
| US8604656B2 (en) | High-temperature thermosetting polymeric materials for ESP motor applications | |
| JP5279823B2 (en) | Method for repairing an electrical device component comprising a laminated electrical insulation part and electrical device component comprising said part | |
| CN104362786B (en) | 200 grades of low voltage motors dissipate embedding winding insulation structure and its insulating method | |
| Boulter et al. | Historical development of rotor and stator winding insulation materials and systems | |
| CN107188591A (en) | Silicon nitride fiber enhancing SiO 2-ceramic based composites and its preparation method and application | |
| CN101211677A (en) | Single-side reinforced small amount epoxy glue mica tape and method of manufacture and its uses | |
| CN111393040A (en) | Flexible fireproof and explosion-proof layer of high-voltage cable connector | |
| US6524710B1 (en) | Method for producing insulating tapes containing mica, and the utilization thereof | |
| RU2608543C2 (en) | Insulation tape material, method of its production and use | |
| CN109427458A (en) | Electromagnetic coil and its manufacturing method | |
| CN101967267A (en) | Impregnating resin applied to wind driven generator insulating vacuum pressure impregnating treatment and impregnating method | |
| CN104395068B (en) | For the insulation component being electrically insulated in high pressure range | |
| CN104066887B (en) | Cellulose base electrically insulating material | |
| CN102587217A (en) | Preparation method of polyimide fiber insulating paper | |
| CN1131529C (en) | High voltage electric appliance | |
| CN101211678A (en) | Single-side reinforced mediate amount epoxy glue mica tape and method of manufacture and its uses | |
| Gao et al. | Homogeneous reinforcement as a strategy for the efficient preparation of high-strength, insulating and high heat-resistant PBO composite paper | |
| CN106457699A (en) | Process and installation for producing a composite material part | |
| CN102330380A (en) | Mica paper and production method and application thereof | |
| KR20070027583A (en) | Mica tape having maximized mica content | |
| CN105226863A (en) | A kind of city rail vehicle linear electric motor primary coil high heat conductive insulating structure | |
| CN110965384B (en) | Aramid 1313 high-electrical-strength insulating paper and preparation method thereof | |
| CN208789178U (en) | A kind of transformer insulating materials | |
| CN107545976B (en) | Superconducting magnet insulation manufacture craft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120125 |