CN217651523U

CN217651523U - Polyaramide fiber crepe paper

Info

Publication number: CN217651523U
Application number: CN202220712014.6U
Authority: CN
Inventors: 杨丽华; 李杨; 杨敬淇
Original assignee: Shanghai Junda Science & Technology Development Co ltd
Current assignee: Shanghai Junda Science & Technology Development Co ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-10-25
Anticipated expiration: 2032-03-25

Abstract

The utility model discloses a polyaramide fiber crepe paper, which comprises a polyaramide fiber paper layer and a reinforcing layer; the aromatic polyamide fiber paper layer is of a wrinkle structure, and the reinforcing layer is attached to the aromatic polyamide fiber paper layer; the material of the reinforcing layer is diamino diphenyl sulfone resin; the thickness of the aromatic polyamide fiber paper layer is 0.045-0.050 mm; the thickness of the reinforcing layer is 1/5-1/10 of that of the polyaramide fiber paper layer. The utility model discloses a polyaramide fiber crepe paper can improve the wholeness ability of motor coil and transformer, and the aversion that produces when reducing the operation has improved product quality greatly, greatly shortens the production preparation time simultaneously.

Description

Polyaramide fiber crepe paper

Technical Field

The utility model relates to an electrical equipment field, in particular to polyaramid fiber crepe paper.

Background

Paper has a long history as an insulating material for electrical equipment, and has a very wide application in electrical equipment, motors, transformers, cables, and capacitors. In the past fifty years, with the rapid development of the petroleum industry, various synthetic fiber papers have been developed and produced. The polyaramide fiber paper has good high temperature resistance, mechanical strength and electrical performance, and is successfully applied to electric equipment such as motors, transformers, capacitors and the like. The polyaramide fiber paper is used as a coil and transformer wrapping material, and a vacuum casting process is adopted, so that the overall performance of the motor coil and the transformer is improved. Because the number of layers of the aramid fiber paper roll is large, vacuum casting resin is difficult to completely penetrate into gaps, partial air distribution is caused, the electrical property and the aging property of a motor coil and a transformer are influenced, and the process time is very long.

There is a need for a polyaramid fiber crepe paper which can improve the overall performance of a motor coil and a transformer, reduce displacement generated during operation, greatly improve the product quality and greatly shorten the production and manufacturing time to solve the technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a polyaramide fiber crepe paper, the utility model discloses a polyaramide fiber crepe paper can improve the wholeness ability of motor coil and transformer, reduces the aversion that produces when the operation, has improved product quality greatly, greatly shortens the production preparation time simultaneously.

The utility model discloses a solve above-mentioned technical problem through following technical scheme:

the utility model provides polyaramide fiber crepe paper, which comprises a polyaramide fiber paper layer and a reinforcing layer; the polyaramide fiber paper layer is of a wrinkle structure, and the reinforcing layer is attached to the polyaramide fiber paper layer; the reinforcing layer is made of diamino diphenyl sulfone resin; the thickness of the polyaramide fiber paper layer is 0.045-0.050 mm; the thickness of the reinforcing layer is 1/5-1/10 of that of the polyaramide fiber paper layer.

In the utility model, the polyaramid fiber paper layer is made of polyaramid fiber paper which is conventional in the field, m-phenylenediamine and m-phthalic diamide are polycondensed into resin, and the prepared chopped fiber and fibrid are made;

preferably, the thickness of the polyaramide fiber paper layer is 0.048mm, and the selection of the thickness and the material ensures that the product has stronger permeability, so that the production and manufacturing time is shortened;

preferably, the thickness of the reinforcing layer is 1/8 of that of the polyaramid fiber paper layer.

The utility model discloses in, the material of enhancement layer is diamino diphenyl sulfone resin, and its heat resistance and polyaramide fiber paper's heat resistance is the same basically, has improved the intensity and the dielectric strength of crepe paper simultaneously, makes the performance of crepe paper and the paper performance that does not corrugate remain unchanged, can also make the wrinkle of crepe paper stereotype.

The utility model discloses a making process of polyaramide fibre crepe paper does: the reinforced layer is coated on the polyaramide fiber paper layer, and is dried, wrinkled, cooled, shaped, rolled and cut.

The utility model discloses an actively advance the effect: the utility model discloses a polyaramide fiber crepe paper can improve the wholeness ability of motor coil and transformer, and the aversion that produces when reducing the operation has improved product quality greatly, greatly shortens the production preparation time simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of the aramid fiber crepe paper according to an embodiment of the present invention.

Description of the reference numerals:

1. a polyaramid fiber paper layer;

2. and a reinforcing layer.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1, the present embodiment provides a polyaramid fiber crepe paper, which includes a polyaramid fiber paper layer 1 and a reinforcing layer 2; the polyaramide fiber paper layer 1 is of a wrinkle-shaped structure, and the reinforcing layer 2 is attached to the polyaramide fiber paper layer 1; the material of the reinforcing layer 2 is diamino diphenyl sulfone resin; the thickness of the aromatic polyamide fiber paper layer 1 is 0.045-0.050 mm; the thickness of the reinforcing layer 2 is 1/5-1/10 of that of the polyaramid fiber paper layer 1.

In the embodiment, the polyaramid fiber paper layer 1 is made of conventional polyaramid fiber paper in the field, and is made of m-phenylenediamine and m-phthalic diamide which are polycondensed into resin, and prepared chopped fibers and fibrids; the thickness of the polyaramide fiber paper layer is 0.048mm, and the selection of the thickness and the material ensures that the product has stronger permeability, thereby shortening the production and manufacturing time; the thickness of the reinforcing layer 2 is 1/8 of that of the aramid fiber paper layer 1.

In this embodiment, the reinforcing layer 2 is made of diaminodiphenyl sulfone resin, which has heat resistance substantially the same as that of polyaramide fiber paper, and simultaneously improves the strength and dielectric strength of crepe paper, so that the performance of crepe paper and the performance of uncreped paper are kept unchanged, and the wrinkling and sizing of the crepe paper can be realized.

The making process of the polyaramide fiber crepe paper in the embodiment comprises the following steps: the reinforced layer is coated on the polyaramide fiber paper layer, and is dried, wrinkled, cooled, shaped, rolled and cut.

The polyaramide fiber crepe paper can improve the overall performance of a motor coil and a transformer, reduces displacement generated in operation, greatly improves product quality, and greatly shortens production and manufacturing time.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The polyaramide fiber crepe paper is characterized by comprising a polyaramide fiber paper layer and a reinforcing layer; the polyaramide fiber paper layer is of a wrinkle-shaped structure, and the reinforcing layer is attached to the polyaramide fiber paper layer; the reinforcing layer is made of diamino diphenyl sulfone resin; the thickness of the polyaramide fiber paper layer is 0.045-0.050 mm; the thickness of the reinforcing layer is 1/5-1/10 of that of the polyaramide fiber paper layer.

2. The polyaramid fiber crepe paper according to claim 1, wherein the polyaramid fiber paper layer has a thickness of 0.048mm.

3. The polyaramid fiber crepe paper according to claim 1, wherein the thickness of the reinforcing layer is 1/8 of the thickness of the polyaramid fiber paper layer.