Ultra-thin large-tension white mica paper

Abstract

The ultra-thin large-tension white mica paper comprises a first mica pulp sheet layer and a second mica pulp sheet layer, and is characterized in that a mixed loren fiber mica pulp sheet layer is sandwiched between the first mica pulp sheet layer and the second mica pulp sheet layer. And the first mica slurry sheet layer and the second mica slurry sheet layer are non-calcined muscovite slurry sheets. And the mixed lorren fiber mica pulp sheet layer comprises polyvinyl chloride fibers and mica pulp sheets. The mica paper is produced under the conditions that the original mica paper is quantitatively reduced, the pressure resistance is not changed, and the temperature resistance is not changed; as the mica pulp sheets are large, the lap joint between the pulp sheets is more sufficient, and the Van der Waals force is larger, the tension of the mica paper is larger; the thickness is thinner than the original thickness. The thickness of the paper is thinned, so that the air permeability of the mica paper is enhanced, the space of the produced mica tape is smaller when the mica tape is wound on a motor, the volume and the weight of the whole motor are reduced, all performances of the motor are not changed, and the purpose of reducing the production cost is achieved.

Description

Technical Field

[0001] The utility model relates to the field of insulating materials, in particular to an ultra-thin high-tension muscovite mica paper. Background Art

[0002] Ordinary muscovite paper is made by screening and cleaning the mica materials, and then sorting, cutting, crushing, pulping, and papermaking. During the papermaking process, multi-layer sizing is performed and finally dried to make mica paper.

[0003] Because the diameter-to-thickness ratio of mica sheets produced by conventional technology does not meet the requirements, the mica paper produced is thick and has low tension. Some manufacturers carry out multi-layer sizing to increase the tension of mica paper, which causes the thickness of the mica paper to exceed the standard, thereby reducing the air permeability of the mica paper and wasting resources. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an ultra-thin high-tension muscovite paper with simple process and simple product structure.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] An ultra-thin high-tension muscovite mica paper comprises a first mica slurry sheet layer and a second mica slurry sheet layer, wherein the first mica slurry sheet layer and the second mica slurry sheet layer are non-calcined muscovite slurry sheets, the size of the first mica slurry sheet layer and the second mica slurry sheet layer is 10 to 100 meshes, the thickness is 40 to 70 um, and a mixed chlorofiber fiber mica slurry sheet layer is sandwiched between the first mica slurry sheet layer and the second mica slurry sheet layer.

[0007] Furthermore, the mixed chlorofluorocarbon fiber-mica slurry sheet layer includes chlorofluorocarbon fibers and mica slurry sheets.

[0008] Furthermore, the chlorofiber is a 2-5 mm long and thin strip.

[0009] Furthermore, the chloroprene fibers are in a scattered state after being soaked and dispersed in isopropyl alcohol.

[0010] Furthermore, the weight of the ultra-thin high-tension muscovite paper is 160 g / ㎡ and the thickness is 0.09+±0.05 mm.

[0011] The beneficial effects of the utility model are:

[0012] The utility model product is a mica paper produced under the condition that the original mica paper is quantitatively reduced, the pressure resistance and temperature resistance remain unchanged: because the mica pulp sheet is large, the pulp sheet and the pulp sheet overlap more fully, the van der Waals force is greater, and the tension of the mica paper is greater; the thickness is thinner than before, for example: the standard requires a thickness of 0.1±0.05㎜ for 160ɡ / ㎡ paper, and now the thickness of 160ɡ / ㎡ paper is reduced to 0.09±0.05㎜. The thickness is reduced by 10% on the original basis, and other properties of the product remain unchanged. The benefits of thinning the paper thickness are, first, enhancing the air permeability of the mica paper, and second, making the produced mica tape smaller when winding the motor, reducing the volume and weight of the entire motor, but the various properties of the motor do not change, thereby achieving the purpose of reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] In the figure: 1-the first mica slurry sheet layer, 2-the second mica slurry sheet layer, 3-the chlorinated fiber mica slurry sheet layer. DETAILED DESCRIPTION

[0015] The utility model will be further described below in conjunction with the accompanying drawings.

[0016] See also Figure 1 An ultra-thin high-tension muscovite mica paper comprises a first mica slurry sheet layer and a second mica slurry sheet layer, wherein a mixed chlorinated fiber mica slurry sheet layer is sandwiched between the first mica slurry sheet layer and the second mica slurry sheet layer.

[0017] First, the mica material is screened and sorted, and then cleaned, and then the mica material is evenly caught and evenly discharged on the feeder, and the crusher uses high-pressure water to crush the mica material. Then, the crushed mica material is screened through a cyclone, and large phosphorus flakes with a diameter-to-thickness ratio that meets the requirements are screened to form the first mica slurry layer and the second mica slurry layer.

[0018] After the preferred large phosphorus flakes are selected, chlorine fiber is infiltrated into the remaining slurry to make a mixed chlorine fiber mica slurry sheet, wherein the chlorine fiber content in the mixed chlorine fiber mica slurry is 10-20%, and the mica slurry content is 80-90%. The chlorine fiber is cut into 2-5 mm long strips in advance.

[0019] After preparing the first mica slurry layer and the second mica slurry layer and mixing the chlorinated fiber mica slurry layer, first apply the first mica slurry layer on the garden net sizing machine, then apply the mixed chlorinated fiber mica slurry layer on the garden net sizing machine for compounding, and then apply the second mica slurry layer for compounding. After the three layers of slurry are compounded, they are dried and rolled on a dryer.

[0020] The implementation manner does not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on the implementation manner are all included in the protection scope of the present invention.

Claims

1. An ultra-thin high-tension muscovite paper, comprising a first mica slurry sheet layer and a second mica slurry sheet layer, characterized in that: The first mica slurry sheet layer and the second mica slurry sheet layer are non-calcined muscovite slurry sheets, the slurry sheets of the first mica slurry sheet layer and the second mica slurry sheet layer are 10 to 100 meshes in size and 40 to 70 um in thickness, and a mixed chlorofiber fiber mica slurry sheet layer is sandwiched between the first mica slurry sheet layer and the second mica slurry sheet layer.

2. The ultra-thin high tension muscovite paper according to claim 1, characterized in that: The mixed chlorinated fiber and mica slurry sheet layer comprises chlorinated fiber and mica slurry sheets.

3. The ultra-thin high tension muscovite paper according to claim 1, characterized in that: The chlorofilament fiber is a 2-5 mm long and thin strip.

4. The ultra-thin high tension muscovite paper according to claim 1, characterized in that: The chloroprene fiber is in a scattered state after being soaked and dispersed in isopropyl alcohol.

5. The ultra-thin high tension muscovite paper according to claim 1, characterized in that: The ultra-thin high-tension muscovite paper has a basis weight of 160 g / ㎡ and a thickness of 0.09+±0.05 mm.

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