CN1819408A - Insulating structure and production for vacuum-pressure immersing process of high-voltage motor - Google Patents
Insulating structure and production for vacuum-pressure immersing process of high-voltage motor Download PDFInfo
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- CN1819408A CN1819408A CN 200610031167 CN200610031167A CN1819408A CN 1819408 A CN1819408 A CN 1819408A CN 200610031167 CN200610031167 CN 200610031167 CN 200610031167 A CN200610031167 A CN 200610031167A CN 1819408 A CN1819408 A CN 1819408A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000009413 insulation Methods 0.000 claims abstract description 82
- 239000010445 mica Substances 0.000 claims abstract description 71
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 71
- 239000003085 diluting agent Substances 0.000 claims abstract description 21
- 239000004593 Epoxy Substances 0.000 claims abstract description 16
- 238000005470 impregnation Methods 0.000 claims abstract description 15
- 239000002131 composite material Substances 0.000 claims abstract description 7
- 239000011521 glass Substances 0.000 claims description 66
- 229920005989 resin Polymers 0.000 claims description 50
- 239000011347 resin Substances 0.000 claims description 50
- 239000003292 glue Substances 0.000 claims description 41
- 239000004744 fabric Substances 0.000 claims description 35
- 238000005516 engineering process Methods 0.000 claims description 31
- 238000002791 soaking Methods 0.000 claims description 29
- 239000003822 epoxy resin Substances 0.000 claims description 28
- 229920000647 polyepoxide Polymers 0.000 claims description 28
- 239000000428 dust Substances 0.000 claims description 24
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- 239000000853 adhesive Substances 0.000 claims description 16
- 230000001070 adhesive effect Effects 0.000 claims description 16
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 15
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 15
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical class O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 15
- 239000002253 acid Substances 0.000 claims description 11
- 239000002390 adhesive tape Substances 0.000 claims description 11
- 150000002118 epoxides Chemical class 0.000 claims description 10
- 229920000728 polyester Polymers 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 150000002148 esters Chemical class 0.000 claims description 7
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- 230000004308 accommodation Effects 0.000 claims description 5
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical class C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 claims description 5
- 238000010790 dilution Methods 0.000 claims description 5
- 239000012895 dilution Substances 0.000 claims description 5
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims description 5
- 229920003986 novolac Polymers 0.000 claims description 5
- 150000002978 peroxides Chemical group 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 125000003011 styrenyl group Chemical group [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims description 4
- 206010020852 Hypertonia Diseases 0.000 abstract 1
- 230000006978 adaptation Effects 0.000 abstract 1
- 238000001035 drying Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000002950 deficient Effects 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000010068 moulding (rubber) Methods 0.000 description 2
- 229920003055 poly(ester-imide) Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention adopts a dry mica tape whole impregnation type VPI (vacuum pressure impregnation) insulation process for stator. It comprises: binding up with dry mica tape; after cog leaves the production line, the whole rotator is impregnated with solventliss epoxy in vacuum pressure condition to form a composite insulation structure of VPI process. It features: the epoxy of the insulation structure contains unsaturated bond, and after adding reactive diluent, the whole impregnation insulation epoxy with low viscosity, hypertonicity and wide adaptation is obtained.
Description
Technical field
The present invention relates to insulation system of a kind of vacuum-pressure immersing process of high-voltage motor and preparation method thereof, this insulation system comprises high pressure solvent-free impregnating resin and few glue glass dust mica tape. Be mainly used in the major insulation of the stator coil of F level vacuum-pressure immersing process of high-voltage motor, also can be applied to the insulation of the whole soaking technology of other rank stator coils.
Background technology
High-voltage motor stator coil (major insulation) is divided into from technique that few glue is whole to soak type insulation and many rubber mouldings die mould insulate. Few glue is whole, and to soak the type insulation be with the dry mica paper tape wrapping, the openpore rear whole stator vacuum pressure impregnation solventless insulation resin that rolls off the production line; Many rubber mouldings die mould insulation is with the wrapping of many glue glass dust mica tape or with the baking of micafolium volume, and mold pressing or hydraulically-setting, the rear whole stator that rolls off the production line flood under normal conditions or water solventfree resin. Few whole soaking technology of glue is owing to reduced coil vacuum drying and mold pressing procedure, simplify coil manufacturing process and made things convenient for rule, not only shortened motor and made time-histories, reduced manufacturing cost, and be conducive to improve the coil insulation workmanship, reduce the dispersiveness of mass of coil. Therefore, the most of employing of high-voltage motor lacked the whole soaking technology of glue at present.
The whole main body insulating materials that soaks the type insulation of few glue is few glue glass dust mica tape and high pressure solvent-free impregnating resin. At present, whole main unsaturated polyester-imide solvent-free impregnating resin and the few glue glass dust cloud bar insulation system of polyester-imide and epoxy resin and the epoxy little-glue glass dust mica tape insulation system of adopting of the big-and-middle-sized high voltage motor stator insulation of type F level that soak of few glue. The former is owing to the defective of material, and instantaneous power frequency disruptive field intensity generally can only reach about 25KV/mm, is difficult to reach the technical requirement of 30KV/mm, so, being mainly used in 3KV, 6KV level medium-sized high-pressure electrical machinery, 10KV level and above model are seldom used.
Although and the instantaneous power frequency disruptive field intensity of the latter can reach the specification requirement of 30KV/mm, because the use viscosity of epoxy resin is larger, poor permeability need to be heated to resin 40～50 ℃ to reduce the use viscosity of resin during use, improve permeance property. After dipping lacquer was finished, resin was cooled to the front temperature of dipping by refrigeration system, guarantees the bin stability of resin. Like this, require Vacuum Pressure Impregnation Equipment that heating and refrigeration system need to be arranged, greatly increased the investment cost of equipment, increased the complexity of using technique. Add the latent curing agent that adds in the epoxy resin, require use and storage temperature low. Therefore, poor for applicability, generally promote the larger defective of existence.
Summary of the invention
The objective of the invention is a kind of New Insulation Structure of developing for the insulation system Shortcomings of existing big-and-middle-sized vacuum-pressure immersing process of high-voltage motor, with the requirement of the various different voltage level insulation systems of the big-and-middle-sized high-voltage motor of F level that satisfy the whole soaking technology of vacuum pressure.
Another object of the present invention provides the preparation method of above-mentioned insulation system.
The objective of the invention is to be achieved through the following technical solutions: adopt few whole type insulation stator vacuum pressure varnished insulation method of soaking of glue, wrap up with dry mica paper tape, the openpore rear whole stator vacuum pressure impregnation solventless insulation resin that rolls off the production line forms the composite insulation structure of the whole soaking technology of vacuum pressure; Its characteristics are to contain unsaturated bond in the epoxy resin of insulation system of the whole soaking technology of motor vacuum pressure, be synthetic unsaturated epoxy ester resin, after adding the reactive diluent dilution, obtain the whole insulating resin that soaks of low viscosity, high osmosis, wide accommodation. This contain unsaturated bond the whole few adhesive tape of insulating resin and expoxy glass mica powder that soaks have good compatibility, by the whole reasonable selection that soaks insulating resin and the few adhesive tape of expoxy glass mica powder that will contain unsaturated bond, the insulation system of the whole soaking technology of few glue vacuum pressure that both form can be adapted to the requirement of insulation system of the high-voltage motor of 3KV, 6KV and 10KV level different stage.
High pressure solvent-free impregnating resin of the present invention forms and proportioning following (by weight deal proportioning):
35～45 parts of epoxy resin; 1.5～11.5 parts of maleic anhydrides;
1.5～4.5 parts in acrylic acid; 3.0～15.0 parts in curing agent;
0.3～2.0 part of initator; 22～59 parts of diluents;
The said epoxy resin of the present invention is bisphenol-A series of loops epoxy resins, and epoxide number is 0.10～0.55, technical grade.
The said maleic anhydride of the present invention, purity be greater than 98.5%, technical grade.
The said acrylic acid of the present invention, purity is greater than 97.0%, technical grade.
The said curing agent of the present invention is novolac resin, 65～115 ℃ of softening points, and purity is greater than 95%, technical grade.
The said initator of the present invention is peroxide, and purity is greater than 99.0%.
The said diluent of the present invention is styrene, technical grade, and purity is greater than 99.0%.
Preparation technology's flow process of F level high pressure solvent-free impregnating resin of the present invention is: epoxy resin is added in the reactor, start stirring, heat to 90～150 ℃, then add maleic anhydride and acrylic acid, in 110～140 ℃ of insulation reaction 2～4 hours, measure acid number, when acid number reaches 10～20mgKOH/g, vacuumize, vacuum degree control-0.085～-0.095MPa between, then 20～60 minutes pumpdown times cooled to 70～130 ℃, added curing agent, stirred 30～40 minutes, after curing agent dissolves fully, diluent is mixed in the reactor, continue to stir, open cooling water, be cooled to 50～70 ℃, add initator, stirred 10～30 minutes, filter, pack with the stainless steel screen pack.
High pressure solvent-free impregnating resin performance indications such as the table 1 made according to the method described above
Table 1
| Sequence number | Project | Unit | Index | ||
| 1 | Outward appearance (ocular estimate) | / | Transparent uniform liquid, machinery-free impurity. | ||
| 2 | Viscosity (23 ± 2 ℃) | S | 19～25 | ||
| 3 | Gel time (140 ± 2 ℃) | min | 6～20 | ||
| 4 | Acid number | MgKOH/g | ≤10 | ||
| 5 | Bonding force (spiral winding method) | Normality | N | ≥100 | |
| 155℃ | ≥20 | ||||
| 6 | Specific insulation | Normality | Ω·m | ≥1.0×10 12 | |
| Immersion | ≥1.0×10 11 | ||||
| 155℃±2℃ | ≥1.0×10 8 | ||||
| 7 | Electrical strength | Normality | MV/m | 20 | |
| Immersion | 18 | ||||
| 155℃±2℃ | 16 | ||||
| 8 | The power frequency dielectric dissipation factor | Normality | ％ | ≤1.0 | |
| 155±2℃ | ≤3.0 | ||||
| 9 | Bin stability (60 ± 2 ℃, 96 hours) | Increase multiple | Be not more than initial 1.5 times | ||
The few glue glass dust mica tape prescription of indication of the present invention and weight component proportioning are:
2.0～5.0 parts of adhesive; 70.0～90.0 parts on mica;
Glass cloth 5.0.0～28.0 part;
Wherein said adhesive is the epoxy polyester adhesive, and epoxide number is between 20～90, and the molecular weight of polyester is between 5000～20000;
Said mica is raw powder mica paper, and indicated weight is 100～220g/m2；
Said glass cloth is that alkali-free is decided the line glass cloth, and indicated weight is 12～25g/m2。
Preparation technology's flow process of few glue glass dust mica tape is: after mica paper and glass cloth are installed, adjust the speed of a motor vehicle to 0.5～1.5m/s, oven temperature is controlled at respectively: a district, 50～70 ℃; Two districts, 80～100 ℃; Three districts, 110～130 ℃. Glass cloth is by behind the steeping vat impregnation, and mica paper and glass cloth are compound, cure by permeating to enter in the baking oven behind the roller, then by rolling, be squeezed into semi-finished product, semi-finished product are by cutting, being finished product after the rewinding. Few glue glass dust mica tape performance indications such as the table 2 made according to the method described above.
Table 2
| Sequence number | Project | Unit | Index |
| 1 | Outward appearance | / | Adhesive is evenly distributed, free from admixture, without adhesion, without disconnected paper, without reeling off raw silk from cocoons and managing looseningly, and normality is soft and not stratified |
| 2 | Nominal thickness | mm | 0.14±0.02 |
| 3 | Glass cloth | g/m 2 | 18～22 |
| 4 | Mica paper | g/m 2 | 180±14 |
| 5 | Glue content | ％ | 3～10 |
| 6 | Volatile content | ％ | ≤1.0 |
| 7 | Hot strength | N/10cm | ≥60 |
| 8 | Electrical strength | MV/m | ≥12 |
When making the composite insulation structure of the whole soaking technology of vacuum pressure, that the few glue glass dust mica tape that will make is as stated above first wrapped up whole stator coil, the coil that then will be surrounded by few glue glass dust mica tape embeds in the stator, after the stator drying is removed tide, put into the whole resin pickup of F level vacuum pressure by the whole soaking technology of vacuum pressure, then baked and cured at a certain temperature just can obtain to be adapted to the high-voltage motor stator coil that the insulation system of the high-voltage motor of 3KV, 6KV and 10KV level different stage requires.
Accompanying drawing and explanation
Fig. 1 F level high pressure solvent-free impregnating resin manufacturing process flow diagram.
Preparation technology's flow chart of the few glue glass dust mica tape of Fig. 2.
The specific embodiment
Embodiment one
A kind of F level high-voltage motor stator coil Main Insulation Structure of Electric, adopt few whole type insulation stator vacuum pressure varnished insulation method of soaking of glue, with dry mica paper tape wrapping, the openpore rear whole stator vacuum pressure impregnation solventless insulation resin that rolls off the production line forms the composite insulation structure of the whole soaking technology of vacuum pressure; Its characteristics are to contain unsaturated bond in the epoxy resin of insulation system of the whole soaking technology of motor vacuum pressure, be synthetic unsaturated epoxy ester resin, after adding the reactive diluent dilution, obtain the whole insulating resin that soaks of low viscosity, high osmosis, wide accommodation. This contain unsaturated bond the whole few adhesive tape of insulating resin and expoxy glass mica powder that soaks have good compatibility, by will contain unsaturated bond the whole reasonable selection that soaks the few adhesive tape of insulating resin and expoxy glass mica powder, the insulation system of the whole soaking technology of few glue vacuum pressure that both form can be adapted to the requirement of insulation system of the high-voltage motor of 3KV, 6KV and 10KV level different stage. Wherein the prescription of F level high pressure solvent-free impregnating resin is as follows:
35 parts of epoxy resin; 1.5 parts of maleic anhydrides;
1.5 parts in acrylic acid; 3.0 parts in curing agent;
1.0 parts of initators; 58.7 parts of diluents;
Epoxy resin is bisphenol-A series of loops epoxy resins, and epoxide number is 0.10, technical grade.
Maleic anhydride, purity be greater than 98.5%, technical grade.
Acrylic acid, purity is greater than 97.0%, technical grade.
Curing agent is novolac resin, 65 ℃ of softening points, and purity is greater than 95%, technical grade.
Initator is peroxide, and purity is greater than 99.0%.
Diluent is styrene, technical grade, and purity is greater than 99.0%.
The manufacturing process of F level high pressure solvent-free impregnating resin as shown in Figure 1, concrete steps are as follows:
1, epoxy resin is added in the reactor, start stirring, heat to 90 ℃.
2, add maleic anhydride and acrylic acid, in 110 ℃ of insulation reaction 2 hours.
3, measure acid number, when acid number reaches 10mgKOH/g, vacuumize, vacuum degree control between-0.085MPa, 20 minutes pumpdown times.
4, cool to 70 ℃, add curing agent, stirred 30 minutes, after curing agent dissolves fully, diluent is mixed in the reactor, continue to stir, open cooling water, be cooled to 50 ℃, add initator, stirred 10 minutes, filter, pack with the stainless steel screen pack.
Few glue glass dust mica tape prescription is as follows:
2.0 parts of adhesive; 70.0 parts on mica;
28.0 parts of glass cloth;
Adhesive is the epoxy polyester adhesive, and epoxide number is between 20, and the molecular weight of polyester is 5000;
Mica paper, indicated weight are 100g/m2；
Glass cloth is that alkali-free is decided the line glass cloth, and indicated weight is 25g/m2。
Lack preparation technology's flow process of glue glass dust mica tape as shown in Figure 2, concrete steps are as follows:
1, mica paper and glass cloth are installed after, adjust the speed of a motor vehicle to 0.5m/s.
2, the control oven temperature exists respectively: a district, 50 ℃; Two districts, 80 ℃; Three districts, 110 ℃.
3, glass cloth is by the steeping vat impregnation, after mica paper and glass cloth are compound, enter in the baking oven and cures by permeating roller.
4, the mica cloth that cures is made half cost after by rolling, extruding, half cost by cut, rewinding is finished product.
The high-voltage motor stator coil Main Insulation Structure of Electric is that few glue glass dust mica tape of making is as stated above directly wrapped up whole stator coil, the coil that then will be surrounded by few glue glass dust mica tape embeds in the stator, after the stator drying is removed tide, put into the whole resin pickup of F level vacuum pressure by the whole soaking technology of vacuum pressure, then baked and cured under 130 ℃～170 ℃ temperature just can obtain to be adapted to the high-voltage motor stator coil that the insulation system of the high-voltage motor of 3KV, 6KV and 10KV level different stage requires.
Embodiment two
A kind of F level high-voltage motor stator coil Main Insulation Structure of Electric, adopt few whole type insulation stator vacuum pressure varnished insulation method of soaking of glue, with dry mica paper tape wrapping, the openpore rear whole stator vacuum pressure impregnation solventless insulation resin that rolls off the production line forms the composite insulation structure of the whole soaking technology of vacuum pressure; Its characteristics are to contain unsaturated bond in the epoxy resin of insulation system of the whole soaking technology of motor vacuum pressure, be synthetic unsaturated epoxy ester resin, after adding the reactive diluent dilution, obtain the whole insulating resin that soaks of low viscosity, high osmosis, wide accommodation. This contain unsaturated bond the whole few adhesive tape of insulating resin and expoxy glass mica powder that soaks have good compatibility, by will contain unsaturated bond the whole reasonable selection that soaks the few adhesive tape of insulating resin and expoxy glass mica powder, the insulation system of the whole soaking technology of few glue vacuum pressure that both form can be adapted to the requirement of insulation system of the high-voltage motor of 3KV, 6KV and 10KV level different stage. Wherein the prescription of F level high pressure solvent-free impregnating resin is as follows:
40 parts of epoxy resin; 6.5 parts of maleic anhydrides;
3.0 parts in acrylic acid; 9.0 parts in curing agent;
0.3 part of initator; 41.7 parts of diluents;
Epoxy resin is bisphenol-A series of loops epoxy resins, and epoxide number is 0.3, technical grade.
Maleic anhydride, purity be greater than 98.5%, technical grade.
Acrylic acid, purity is greater than 97.0%, technical grade.
Curing agent is novolac resin, 65 ℃ of softening points, and purity is greater than 95%, technical grade.
Initator is peroxide, and purity is greater than 99.0%.
Diluent is styrene, technical grade, and purity is greater than 99.0%.
The manufacturing process of F level high pressure solvent-free impregnating resin is as follows:
1, epoxy resin is added in the reactor, start stirring, heat to 120 ℃.
2, add maleic anhydride and acrylic acid, in 125 ℃ of insulation reaction 3 hours.
3, measure acid number, when acid number reaches 15mgKOH/g, vacuumize, vacuum degree control between-0.090MPa, 30 minutes pumpdown times.
4, cool to 100 ℃, add curing agent, stirred 40 minutes, after curing agent dissolves fully, diluent is mixed in the reactor, continue to stir, open cooling water, be cooled to 60 ℃, add initator, stirred 10 minutes, filter, pack with the stainless steel screen pack.
Few glue glass dust mica tape prescription is as follows:
3.5 parts of adhesive; 75 parts on mica;
21.5 parts of glass cloth;
Adhesive is the epoxy polyester adhesive, and epoxide number is between 55, and the molecular weight of polyester is 12500;
Mica is raw powder mica paper, and indicated weight is 160g/m2；
Glass cloth is that alkali-free is decided the line glass cloth, and indicated weight is 18g/m2。
Preparation technology's flow process of few glue glass dust mica tape is as follows:
1, mica paper and glass cloth are installed after, adjust the speed of a motor vehicle to 1.0m/s.
2, the control oven temperature exists respectively: a district, 120 ℃; Two districts, 90 ℃; Three districts, 120 ℃.
3, glass cloth, enters by the infiltration roller after mica paper and glass cloth are compound by the steeping vat impregnation
Cure in the baking oven.
4, the mica cloth that cures is made half cost after by rolling, extruding, half cost by cut, rewinding is finished product.
The high-voltage motor stator coil Main Insulation Structure of Electric is that few glue glass dust mica tape of making is as stated above wrapped up whole stator coil, the coil that then will be surrounded by few glue glass dust mica tape embeds in the stator, after the stator drying is removed tide, put into the whole resin pickup of F level vacuum pressure by the whole soaking technology of vacuum pressure, then baked and cured under 130 ℃～170 ℃ temperature just can obtain to be adapted to the high-voltage motor stator coil that the insulation system of the high-voltage motor of 3KV, 6KV and 10KV level different stage requires.
Embodiment three
A kind of F level high-voltage motor stator coil Main Insulation Structure of Electric, adopt few whole type insulation stator vacuum pressure varnished insulation method of soaking of glue, with dry mica paper tape wrapping, the openpore rear whole stator vacuum pressure impregnation solventless insulation resin that rolls off the production line forms the composite insulation structure of the whole soaking technology of vacuum pressure; Its characteristics are to contain unsaturated bond in the epoxy resin of insulation system of the whole soaking technology of motor vacuum pressure, be synthetic unsaturated epoxy ester resin, after adding the reactive diluent dilution, obtain the whole insulating resin that soaks of low viscosity, high osmosis, wide accommodation. This contain unsaturated bond the whole few adhesive tape of insulating resin and expoxy glass mica powder that soaks have good compatibility, by will contain unsaturated bond the whole reasonable selection that soaks the few adhesive tape of insulating resin and expoxy glass mica powder, the insulation system of the whole soaking technology of few glue vacuum pressure that both form can be adapted to the requirement of insulation system of the high-voltage motor of 3KV, 6KV and 10KV level different stage. Wherein the prescription of F level high pressure solvent-free impregnating resin is as follows:
45 parts of epoxy resin; 11.5 parts of maleic anhydrides;
4.5 parts in acrylic acid; 15 parts in curing agent;
2.0 parts of initators; 22 parts of diluents;
Epoxy resin is bisphenol-A series of loops epoxy resins, and epoxide number is 0.55, technical grade.
Maleic anhydride, purity be greater than 98.5%, technical grade.
Acrylic acid, purity is greater than 97.0%, technical grade.
Curing agent is novolac resin, 105 ℃ of softening points, and purity is greater than 95%, technical grade.
Initator is peroxide, and purity is greater than 99.0%.
Diluent is styrene, technical grade, and purity is greater than 99.0%.
The manufacturing process of F level high pressure solvent-free impregnating resin is as follows:
1, epoxy resin is added in the reactor, start stirring, heat to 150 ℃.
2, add maleic anhydride and acrylic acid, in 140 ℃ of insulation reaction 4 hours.
3, measure acid number, when acid number reaches 20mgKOH/g, vacuumize, vacuum degree control between-0.095MPa, 60 minutes pumpdown times.
4, cool to 130 ℃, add curing agent, stirred 60 minutes, dissolve rear diluent fully until curing agent and mix in the reactor, continue to stir, open cooling water, be cooled to 70 ℃, add initator, stirred 30 minutes, filter, pack with the stainless steel screen pack.
Few glue glass dust mica tape prescription is as follows:
5.0 parts of adhesive; 90.0 parts on mica;
5.0 parts of glass cloth;
Adhesive is the epoxy polyester adhesive, and epoxide number is between 90, and the molecular weight of polyester is between 20000;
Mica is raw powder mica paper, and indicated weight is 100g/m2；
Glass cloth is that alkali-free is decided the line glass cloth, and indicated weight is 12g/m2。
Preparation technology's flow process of few glue glass dust mica tape is as follows:
1, mica paper and glass cloth are installed after, adjust the speed of a motor vehicle to 1.5m/s.
2, the control oven temperature exists respectively: a district, 70 ℃; Two districts, 100 ℃; Three districts, 130 ℃.
3, glass cloth is by the steeping vat impregnation, after mica paper and glass cloth are compound, enter in the baking oven and cures by permeating roller.
4, the mica cloth that cures is made half cost after by rolling, extruding, half cost by cut, rewinding is finished product.
The high-voltage motor stator coil Main Insulation Structure of Electric is that few glue glass dust mica tape of making is as stated above wrapped up whole stator coil, the coil that then will be surrounded by few glue glass dust mica tape embeds in the stator, after the stator drying is removed tide, put into the whole resin pickup of F level vacuum pressure by the whole soaking technology of vacuum pressure, then baked and cured under 130 ℃～170 ℃ temperature just can obtain to be adapted to the high-voltage motor stator coil that the insulation system of the high-voltage motor of 3KV, 6KV and 10KV level different stage requires.
Claims (7)
1, a kind of insulation system of vacuum-pressure immersing process of high-voltage motor, adopt few whole type insulation stator vacuum pressure varnished insulation method of soaking of glue, wrap up with dry mica paper tape, the openpore rear whole stator vacuum pressure impregnation solventless insulation resin that rolls off the production line forms the composite insulation structure of the whole soaking technology of vacuum pressure; It is characterized in that containing unsaturated bond in the epoxy resin of insulation system of the whole soaking technology of motor vacuum pressure, be synthetic unsaturated epoxy ester resin, after adding the reactive diluent dilution, obtain the whole insulating resin that soaks of low viscosity, high osmosis, wide accommodation, this contain unsaturated bond the whole few adhesive tape of insulating resin and expoxy glass mica powder that soaks have good compatibility, by will contain unsaturated bond the whole reasonable selection that soaks the few adhesive tape of insulating resin and expoxy glass mica powder, the insulation system of the whole soaking technology of few glue vacuum pressure that both form can be adapted to the requirement of insulation system of the high-voltage motor of 3KV, 6KV and 10KV level different stage.
2, the insulation system of a kind of vacuum-pressure immersing process of high-voltage motor as claimed in claim 1 is characterized in that: described synthetic unsaturated epoxy ester resin is to carry out proportioning by following mass parts prescription:
35～45 parts of epoxy resin;
1.5～11.5 parts of maleic anhydrides;
1.5～4.5 parts in acrylic acid;
3.0～15.0 parts in curing agent;
0.3～2.0 part of initator;
22～59 parts of diluents.
3, the insulation system of a kind of vacuum-pressure immersing process of high-voltage motor as claimed in claim 1 or 2 is characterized in that: described epoxy resin is bisphenol-A series of loops epoxy resins, and epoxide number is 0.10～0.55, technical grade; Described maleic anhydride, purity be greater than 98.5%, technical grade; Described acrylic acid, purity is greater than 97.0%, technical grade; Described curing agent is novolac resin, 65～115 ℃ of softening points, and purity is greater than 95%, technical grade; Described initator is peroxide, and purity is greater than 99.0%; Described diluent is styrene, technical grade, and purity is greater than 99.0%.
4, the insulation system of a kind of vacuum-pressure immersing process of high-voltage motor as claimed in claim 1 or 2 is characterized in that: described synthetic unsaturated epoxy ester resin manufacturing process is as follows:
(1) epoxy resin is added in the reactor, start stirring, heat to 90～150 ℃;
(2) add maleic anhydride and acrylic acid, in 110～140 ℃ of insulation reaction 2～4 hours;
(3) measure acid number, when acid number reaches 10～20mgKOH/g, vacuumize, vacuum degree control-0.085～-0.095MPa between, 20～60 minutes pumpdown times;
(4) cool to 70～130 ℃, add curing agent, stirred 30～40 minutes, after curing agent dissolves fully, diluent is mixed in the reactor, continue to stir, open cooling water, be cooled to 50～70 ℃, add initator, stirred 10～30 minutes, filter, pack with the stainless steel screen pack.
5, the insulation system of a kind of vacuum-pressure immersing process of high-voltage motor as claimed in claim 1 is characterized in that: the few adhesive tape of described expoxy glass mica powder carries out proportioning by following mass parts prescription and is:
2.0～5.0 parts of adhesive;
70.0～90.0 parts on mica;
5.0～28.0 parts of glass cloth.
6, such as the insulation system of claim 1 or 5 described a kind of vacuum-pressure immersing process of high-voltage motor, it is characterized in that: described adhesive is the epoxy polyester adhesive, and epoxide number is between 20～90, and the molecular weight of polyester is between 5000～20000; Described mica is raw powder mica paper, and indicated weight is 100～220g/ m2 Described glass cloth is that alkali-free is decided the line glass cloth, and indicated weight is 12～25g/m2。
7, such as the insulation system of claim 1 or 5 described a kind of vacuum-pressure immersing process of high-voltage motor, it is characterized in that: described few glue glass dust mica tape preparation method is:
(1) mica paper and glass cloth are installed after, adjust the speed of a motor vehicle to 0.5～1.5m/s.
(2) the control oven temperature exists respectively: a district, 50～70 ℃; Two districts, 80～100 ℃; Three districts, 110～130 ℃;
(3) glass cloth is by the steeping vat impregnation, after mica paper and glass cloth are compound, enter in the baking oven and cures by permeating roller;
(4) mica cloth that cures is made half cost after by rolling, extruding, half cost by cut, rewinding is finished product.
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| CNB200610031167XA CN100386380C (en) | 2006-01-23 | 2006-01-23 | Insulating structure and production for vacuum-pressure immersing process of high-voltage motor |
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|---|---|---|---|
| CNB200610031167XA CN100386380C (en) | 2006-01-23 | 2006-01-23 | Insulating structure and production for vacuum-pressure immersing process of high-voltage motor |
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| CN100386380C CN100386380C (en) | 2008-05-07 |
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| CNB200610031167XA Expired - Fee Related CN100386380C (en) | 2006-01-23 | 2006-01-23 | Insulating structure and production for vacuum-pressure immersing process of high-voltage motor |
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Family Cites Families (5)
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Effective date of registration: 20180810 Address after: 412199 Industrial Park, Lukou Economic Development Zone, Zhuzhou County, Zhuzhou, Hunan Patentee after: ZHUZHOU TIMES ELECTRIC INSULATION Co.,Ltd. Address before: 412300 Hunan Zhuzhou Tianyuan District Mount Huangshan road Zhuzhou new material Polytron Technologies Inc Patentee before: ZHUZHOU TIMES NEW MATERIAL TECHNOLOGY Co.,Ltd. |
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