CN206148254U

CN206148254U - Arc line type glass fiber net check cloth

Info

Publication number: CN206148254U
Application number: CN201621224728.3U
Authority: CN
Inventors: 陆希; 陶圣卫
Original assignee: Yixing Feida Electrical Material Co Ltd
Current assignee: Yixing Feida Electrical Material Co Ltd
Priority date: 2016-11-15
Filing date: 2016-11-15
Publication date: 2017-05-03
Anticipated expiration: 2026-11-15

Abstract

The utility model discloses an arc line type glass fiber net check cloth, this net cloth weave the mesh fabric as if the dry net eye that has that forms by the glass fiber warp of a plurality of interval arrangements with the glass fiber woof of a plurality of interval arrangements, and the left side of the glass fiber warp between adjacent mesh, right side are equipped with left glass fiber arc yarn, right glass fiber arc yarn respectively. Be equipped with left chaining warp, right chaining warp respectively on left side, the right side of every glass fiber warp, the glass fiber warp between the adjacent mesh is located centre gripping around the left glass fiber arc yarn of its left and right sides, the right glass fiber arc yarn, and left chaining warp through the coil will be located left each the left glass fiber arc yarn of glass fiber warp tie up fixed, each right glass fiber arc yarn that right chaining warp will be located glass fiber warp right side through the coil tie up fixed. The utility model discloses have good pliability, permeability and cracking resistance, can more closely combine together with the coil pouring body.

Description

Arc line type fiberglass gridding cloth

Technical field

This utility model is related to a kind of glass fabric, more particularly to a kind of to be applied to the epoxy cast dry with filler Fiberglass gridding cloth in transformator, reactor winding, belongs to electrical insulating material technical field.

Background technology

At present, the fiberglass gridding being widely used in the epoxy cast dry transformer with filler, reactor winding Cloth, mostly using glass fiber warps and weft yarn are twisted by tatting or arrow shaft frame as shown in Figure 3, Figure 4 knit or plain weave and Into smooth vertical and horizontal single structure grid cloth.When in use, epoxy resin is permeated in coil windings by the mesh of grid cloth Space in, it is cured after formed insulating barrier.

The Chinese utility model patent of Patent No. ZL201020220138.X discloses a kind of interband fiberglass gridding Cloth, in the grid cloth broadwise by one sth. made by twisting 1200tex rove be continuously arranged into 6-10mm it is wide and one twist with the fingers 33tex spun yarns continuously arrange Into 6-10mm width, by a sth. made by twisting 33tex spun yarns, continuously arrangement is constituted warp-wise.Equally, grid cloth disclosed in the patent is also conventional horizontal stroke Flat vertical single structure.

In terms of the grid cloth of these single structures haves the shortcomings that three below in use：（1）The net of grid cloth Less, the poor permeability of resin during cast of eye, causes infiltration incomplete, increases cast work difficulty；（2）Grid cloth it is flexible Property is poor, and more than grid cloth more than 1.2mm specifications, in coiling, warp thread can become very rigid and easy to particularly thickness It is crisp, fracture is easily caused when coiling bends warp thread, nor is easily fitted with coil windings, so as to reduce coiling Work efficiency；（3）The crosslinking node of grid cloth is few, also no extendible space, therefore it is larger to meet the coefficient of expansion The anti-coil cracking of coil is required.

The content of the invention

The technical problems to be solved in the utility model is to provide a kind of not only permeability by force, and can increase substantially flexible The anti-cracking performance of degree and coil, and the contact area of itself and molded coil can be expanded, it is allowed to closely pour with coil The arc line type fiberglass gridding cloth that injection body is combined together.

To solve above-mentioned technical problem, this utility model adopts such a arc line type fiberglass gridding cloth, the grid If cloth be by some spaced apart glass fiber warps and the braiding of some spaced apart glass fiber wefts with The mesh fabric of dry mesh, is impregnated with insulating cement, in each glass fiber warps and glass fiber weft in adjacent net The left side of the glass fiber warps between eye, right side are respectively equipped with left glass fibre arc yarn, right glass fibre arc yarn, described Insulating cement is impregnated with left glass fibre arc yarn and right glass fibre arc yarn.

As a kind of preferred implementation of the present utility model, set on the left side of every glass fiber warps, right side respectively There are left chaining warp thread, right chaining warp thread, the glass fiber warps between adjacent mesh are by the described left glass positioned at its left and right sides Clamp before and after glass fiber arc yarn, right glass fibre arc yarn, and the left chaining warp thread will be positioned at glass fibre by coil Each left glass fibre arc yarn bondage on the left of warp thread is fixed, and the right chaining warp thread will be positioned at glass fiber warps by coil The each right glass fibre arc yarn bondage on right side is fixed, and is impregnated with insulating cement on the left chaining warp thread and right chaining warp thread.

In this utility model, the insulating cement is preferably epoxy resin, and the left chaining warp thread and right chaining warp thread are equal Preferably Polyester Yarns.

After said structure, this utility model has the advantages that：

The mesh of the more common grid cloth of mesh of this utility model grid cloth is big, when using poured with epoxy resin, by Substantial amounts of silicon powder filler is with the addition of in resin, thus increased the viscosity of resin, during cast, occur resin mixture not The situation of layer insulation can be immersed well, and the large-mesh of this utility model grid cloth can greatly improve the mobility of resin, Layer insulation is made easily to permeate in casting process.

Compared with the common grid cloth of same thickness, suppleness has increased significantly this utility model grid cloth, special Shi Yongyu not the less coil of diameter.

This utility model is respectively provided with glass fibre arc yarn in the both sides of glass fiber warps, so expands itself With the contact area of molded coil, it is allowed to closely together with coil pour mass associativity, bridging property, globality are more It is superior.

When the coil coefficient of expansion is not very big, glass fibre Jing, weft yarn play good drawing-resistant function to this utility model, Glass fibre arc yarn plays a part of to strengthen and double insurance.When the coefficient of expansion is beyond routine, due to glass fiber warps Fracture can occur because of expansion, but glass fibre arc yarn can play good extension and cushioning effect, glass fibers arc maintenance Shape yarn can be straightened, and offset certain stress, so as to substantially increase the anti-cracking performance of coil.

This utility model glass fiber warps are clamped before and after the left and right glass fibre arc yarn of its both sides, thus Be conducive to which radially extending, while the broadwise foldable at the chaining, is not easily broken.

Description of the drawings

Specific embodiment of the present utility model is described in further detail below in conjunction with accompanying drawing.

A kind of structural representations of the Fig. 1 for this utility model arc line type fiberglass gridding cloth.

Another kind of structural representations of the Fig. 2 for this utility model arc line type fiberglass gridding cloth.

Fig. 3 is that the strand of fiberglass gridding cloth in background technology knits structural representation.

Fig. 4 is the plain weave structural representation of fiberglass gridding cloth in background technology.

Specific embodiment

Referring to a kind of arc line type fiberglass gridding cloth shown in Fig. 1,2, the grid cloth is by some spaced apart glass The mesh fabric with some meshes 3 that glass fibrous warps 1 are woven with some spaced apart glass fiber wefts 2, Insulating cement is impregnated with each glass fiber warps 1 and glass fiber weft 2, the glass fibre between adjacent mesh 3 The left side of warp thread 1, right side are respectively equipped with left glass fibre arc yarn 4, right glass fibre arc yarn 5, the left glass fibers arc maintenance Insulating cement is impregnated with shape yarn 4 and right glass fibre arc yarn 5.The glass fiber yarn of utility model adopts Jing silane wetting agents Without wax glass fiber yarn, the alkali-free of surface treatment so can ensure that epoxy resin can be sufficiently impregnated with glass fiber yarn in dipping It is internal.

As a kind of embodiment of the present utility model, the left glass fibre arc yarn 4, right glass fibre arc yarn 5 Can be fixed by lashing wire or directly by being adhesively fixed on warp thread.In addition, described arc preferably adopts circular arc, such as Fig. 1, shown in 2.

As a kind of preferred implementation of the present utility model, as shown in Fig. 2 the left side of every glass fiber warps 1, Right side is respectively equipped with left chaining warp thread 6, right chaining warp thread 7, and the glass fiber warps 1 between adjacent mesh 3 are by positioned at its left and right The described left glass fibre arc yarn 4 of both sides, right glass fibre arc yarn 5 are clamped in front and back, and the left chaining warp thread 6 passes through line Enclose and each left 4 bondage of glass fibre arc yarn on the left of glass fiber warps 1 is fixed, the right chaining warp thread 7 passes through line Enclose and each right 5 bondage of glass fibre arc yarn on the right side of the glass fiber warps 1 is fixed, the left chaining warp thread 6 and right volume Insulating cement is impregnated with chain warp thread 7.In processing, the grid cloth is woven using tricot machine, and using traditional chaining For skeleton and warp knit laying-in, inlaid thread combined technology means, realize alternately being woven into parallel knot back and forth with winding to weft direction Structure, glass fiber warps 1 adopt laying-in technique, in organizing with not weaving, using grouped tissue layer technology, laying-in is only clamped in During broadwise glass fibre is weft yarn 2, while technology of the broadwise using overfeeding, the yarn that overfeeding goes out, the starting the arc in chaining both sides, so as to Left glass fibre arc yarn 4, right glass fibre arc yarn 5 are formed respectively in the arranged on left and right sides of glass fiber warps 1, and are passed through Each left 4 bondage of glass fibre arc yarn on the left of glass fiber warps 1 is fixed by the coil on left chaining warp thread 6, is passed through Each right 5 bondage of glass fibre arc yarn on the right side of glass fiber warps 1 is fixed by the coil on right chaining warp thread 7, finally Form arc line type fiberglass gridding cloth of the present utility model.

In this utility model, the insulating cement is preferably epoxy resin, the left chaining warp thread 6 and right chaining warp thread 7 Both preferably Polyester Yarns.

Through trying out, this utility model has the permeability of excellent pliability and resin, meets the coefficient of expansion larger The cracking resistance of coil is required, and more closely can be combined together with coil pour mass, simple structure, low cost of manufacture, is obtained Good effect.

Claims

1. a kind of arc line type fiberglass gridding cloth, the grid cloth is by some spaced apart glass fiber warps（1）If with Do spaced apart glass fiber weft（2）Braiding with some meshes（3）Mesh fabric, in each glass fibers Dimension warp thread（1）And glass fiber weft（2）On be impregnated with insulating cement, it is characterised in that：In adjacent mesh（3）Between glass Fibrous warps（1）Left side, right side be respectively equipped with left glass fibre arc yarn（4）, right glass fibre arc yarn（5）, the left side Glass fibre arc yarn（4）With right glass fibre arc yarn（5）On be impregnated with insulating cement.

2. arc line type fiberglass gridding cloth according to claim 1, it is characterised in that：In every glass fiber warps （1）Left side, right side be respectively equipped with left chaining warp thread（6）, right chaining warp thread（7）, adjacent mesh（3）Between glass fibre Jing Yarn（1）By the described left glass fibre arc yarn positioned at its left and right sides（4）, right glass fibre arc yarn（5）Clamp in front and back, and The left chaining warp thread（6）Will be positioned at glass fiber warps by coil（1）The each left glass fibre arc yarn in left side（4）Bondage It is fixed, the right chaining warp thread（7）Will be positioned at glass fiber warps by coil（1）The each right glass fibre arc yarn on right side （5）Bondage is fixed, the left chaining warp thread（6）With right chaining warp thread（7）On be impregnated with insulating cement.

3. arc line type fiberglass gridding cloth according to claim 2, it is characterised in that：The insulating cement is asphalt mixtures modified by epoxy resin Fat, the left chaining warp thread（6）With right chaining warp thread（7）It is Polyester Yarns.