CN104361961B - A kind of high density thin mica tape - Google Patents
A kind of high density thin mica tape Download PDFInfo
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- CN104361961B CN104361961B CN201410685099.3A CN201410685099A CN104361961B CN 104361961 B CN104361961 B CN 104361961B CN 201410685099 A CN201410685099 A CN 201410685099A CN 104361961 B CN104361961 B CN 104361961B
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- mica
- adhesive
- high density
- mica tape
- reinforcing material
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Abstract
The present invention relates to electrical insulating material, specially a kind of high density thin mica tape, with high density, high electric strength and ultra-thin characteristic, solve current Winding of HV motor turn-to-turn insulation be thinned and its reliability technical problem, including mica paper, adhesive and the reinforcing material bed of material, mica paper and the reinforcing material bed of material is bonded by adhesive, the quantification of 28g/m2 ~ 32g/m2 of mica of mica paper, adhesive glue content is 2% ~ 5%, and the reinforcing material bed of material is 38g/m2 ~ 46g/m2.High-voltage motor turn-to-turn insulation can be achieved to be thinned, improve the reliability and service life that insulation is thinned, after tested, its electrical strength is not less than 180kV/mm.
Description
Technical field
The invention belongs to electrical material technical field, it is related to a kind of high density thin mica tape.
Background technology
With making constant progress for industrial technology, high efficiency motor is increasingly favored by user, and efficient electric owner
To be realized dependent on being thinned for its own insulation, be thinned and have for machine designer as the turn-to-turn insulation of high-voltage motor
It is of great importance, but is limited the purpose that can not accomplish that insulation is thinned on domestic market by mica paper thickness, even if subtracts
Thin other such as imines films or polyester film of stilling need are aided in indirectly, and its electric property is difficult to meet to require, Publication No.
CN103419443A patent, a kind of entitled two-sided reinforcement thin film mica tape and preparation method thereof, disclose a kind of two-sided benefit
Strong film mica tape and preparation method thereof, including the first organic thin film layer, first bonding agents layer, mica paper, the second organic film
Layer and second bonding agents layer.Although by double-deck reinforcement, it is that surface abrasion resistance is high to realize beneficial effect, and burning does not destroy mica
The insulating properties of paper, and have enough intensity and suitable elongation percentage, but electrical strength is relatively low, requires that electrical strength is high some
Field do not reach requirement.
The content of the invention
Present invention aims at there is provided high density, high electric strength, ultrathin mica tape, a kind of high density thin mica
Band, solves the technical problem that reliability is thinned in current high-voltage motor turn-to-turn insulation.Not only reach and subtracted in terms of insulation thickness
It is thin to require, while the requirement such as high heat conduction, heat resistance, moisture resistance, electric property, mechanical strength and saturating machine can be met.
What the present invention was achieved through the following technical solutions, a kind of high density thin mica tape, including mica paper, adhesive and benefit
Strong material layer, mica paper and the reinforcing material bed of material is bonded by adhesive, and the quantification of 28g/m2 of mica of the mica paper ~
32g/m2, the adhesive glue content is 2% ~ 5%, and the reinforcing material bed of material is 38g/m2 ~ 46g/m2.It is preferred that the quantification of 30g/m of mica
²。
Further, mica tape gross thickness is 0.05mm.
Further, the reinforcing material bed of material be polyester film, Kapton, corona-resistant polyimide film in one kind or
It is several.
Further, adhesive is the one or more in organic silicon adhesive, epoxy adhesive, polyester adhesive.
A kind of high density thin mica tape of the present invention, can with very high electric property, mechanical strength and saturating machine
Realize that high-voltage motor turn-to-turn insulation is thinned, improves the reliability and service life that insulation is thinned, after tested, its electrical strength is not low
In 180kV/mm.
Brief description of the drawings
Fig. 1 is a kind of high density thin mica tape structure chart of the invention
Label in figure：1st, mica paper 2, adhesive 3, the reinforcing material bed of material.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Specific embodiment 1
As shown in figure 1, a kind of high density thin mica tape, including mica paper 1, adhesive 2 and the reinforcing material bed of material 3, the cloud
Female paper 1 and the reinforcing material bed of material 3 are bonded by adhesive 2, the quantification of 31.7g/m2 of mica of mica paper 1, and the adhesive 2 is to have
Machine silica gel stick, glue content is 2.6%, and the reinforcing material bed of material 3 is polyester film 42.4g/m2.Mica tape gross thickness is 0.05mm.It is dry
Dry material gross mass is 76.7 g/cm2
The performance detection of embodiment 1 is shown in Table 1
The single-face polyester film reinforcement mica tape of table 1
| Sequence number | Detection project | Unit | Typical measured value |
| 1 | Thickness | mm | 0.05 |
| 2 | Volatile matter | % | 0.1 |
| 3 | Glue content | % | 2.6 |
| 4 | Mica content | g/cm² | 31.7 |
| 5 | Supporting material | g/cm² | 42.4 |
| 6 | Dry matter gross mass | g/cm² | 76.7 |
| 7 | Tensile strength | N/10mm | 46 |
| 8 | Dielectric strength | kV/mm | 181 |
Specific embodiment 2
As shown in figure 1, a kind of high density thin mica tape, including mica paper 1, adhesive 2 and the reinforcing material bed of material 3, the cloud
Female paper 1 and the reinforcing material bed of material 3 are bonded by adhesive 2, the quantification of 30.5g/m2 of mica of mica paper 1, and the adhesive 2 is to have
Machine silica gel stick, glue content is 2%, and the reinforcing material bed of material 3 is polyester film 44g/m2.Mica tape gross thickness is 0.05mm.Dried object
Matter gross mass is 77 g/cm2
The performance detection of embodiment 2 is shown in Table 2
The single-face polyester film reinforcement mica tape of table 1
| Sequence number | Detection project | Unit | Typical measured value |
| 1 | Thickness | mm | 0.05 |
| 2 | Volatile matter | % | 0.1 |
| 3 | Glue content | % | 2 |
| 4 | Mica content | g/cm² | 30.5 |
| 5 | Supporting material | g/cm² | 44 |
| 6 | Dry matter gross mass | g/cm² | 77 |
| 7 | Tensile strength | N/10mm | 50 |
| 8 | Dielectric strength | kV/mm | 185 |
Comparative example
A kind of high density thin mica tape, including mica paper 1, adhesive 2 and the reinforcing material bed of material 3, the mica paper 1 and reinforcement
Material layer 3 is bonded by adhesive 2, the quantification of 80.4g/m2 of mica of mica paper 1, and the adhesive 2 is organic silicon adhesive,
Glue content is 3.4%, and the reinforcing material bed of material 3 is polyester film 40g/m2.Mica tape gross thickness is 0.09mm.Dry matter gross mass
For 124.6 g/cm2.
Comparative example performance detection is shown in Table 3
The single-face polyester film reinforcement mica tape of table 3
| Sequence number | Detection project | Unit | Typical measured value |
| 1 | Thickness | mm | 0.09 |
| 2 | Volatile matter | % | 0.4 |
| 3 | Glue content | % | 3.4 |
| 4 | Mica content | g/cm² | 80.4 |
| 5 | Supporting material | g/cm² | 40 |
| 6 | Dry matter gross mass | g/cm² | 124.6 |
| 7 | Tensile strength | N/10mm | 40 |
| 8 | Dielectric strength | kV/mm | 100 |
Comparative example is compared with the present invention, and thickness is 0.09mm, and corresponding mica content increase is 80.4 g/cm2, detection knot
Fruit tensile strength and dielectric strength are below the present invention, particularly dielectric strength and differ more with the present invention.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., be all contained within protection scope of the present invention.
Claims (3)
1. a kind of high density thin mica tape, including mica paper（1）, adhesive（2）With the reinforcing material bed of material（3）, the mica paper（1）
With the reinforcing material bed of material（3）Pass through adhesive（2）Bonding, it is characterised in that：The mica paper（1）The quantification of 28g/m2 of mica ~
32g/m2, the adhesive（2）Glue content is 2% ~ 5%, the reinforcing material bed of material（3）For 38g/m2 ~ 46g/m2, mica tape total thickness
Spend for 0.05mm.
2. a kind of high density thin mica tape according to claim 1, it is characterised in that the reinforcing material bed of material（3）It is poly-
One kind in ester film, Kapton.
3. a kind of high density thin mica tape according to claim 1, it is characterised in that the adhesive（2）For organosilicon
One kind in adhesive, epoxy adhesive, polyester adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410685099.3A CN104361961B (en) | 2014-11-25 | 2014-11-25 | A kind of high density thin mica tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410685099.3A CN104361961B (en) | 2014-11-25 | 2014-11-25 | A kind of high density thin mica tape |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104361961A CN104361961A (en) | 2015-02-18 |
| CN104361961B true CN104361961B (en) | 2017-10-03 |
Family
ID=52529216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410685099.3A Active CN104361961B (en) | 2014-11-25 | 2014-11-25 | A kind of high density thin mica tape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104361961B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02304818A (en) * | 1989-05-19 | 1990-12-18 | Okabe Maika Kogyosho:Kk | Particulate laminated mica tape and sheet |
| US6991845B2 (en) * | 2002-12-13 | 2006-01-31 | E. I. Du Pont De Nemours And Company | Mica sheet and tape |
| CN201084462Y (en) * | 2007-09-14 | 2008-07-09 | 苏州巨峰绝缘材料有限公司 | A corona-resistant slight-glue mica tape |
| CN101969244B (en) * | 2010-07-30 | 2012-06-27 | 吴江市太湖绝缘材料有限公司 | Dry mica tape |
| CN103419443B (en) * | 2013-08-16 | 2015-03-25 | 卢儒 | Double-sided reinforced mica tape with films and method for manufacturing double-sided reinforced mica tape |
-
2014
- 2014-11-25 CN CN201410685099.3A patent/CN104361961B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104361961A (en) | 2015-02-18 |
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