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Method for mechanically binding and manually binding big transformer iron core

A transformer and combined technology, applied in the manufacture of inductors/transformers/magnets, transformers/inductor cores, electrical components, etc., can solve the problems of cumbersome operation, time-consuming and labor-intensive, and achieve uniform core binding force and reduce binding. Thickness, cost saving effect

Active Publication Date: 2012-01-11
BAODING TIANWEI BAOBIAN ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the large-scale transformer manufacturing industry, the iron cores of large-scale transformer products are mostly bound by hand with fast-drying resin-impregnated glass fiber binding tape (referred to as thin weft tape). During the binding process, each core column requires 4 or 5 people to operate at the same time. , wind the thin weft tape layer by layer on the iron core by hand, and calculate the binding thickness by artificially memorizing the number of binding layers. The operation is cumbersome, time-consuming and labor-intensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0006] The present invention will be further described below through embodiment.

[0007] In an embodiment, the specific operation steps are as follows:

[0008] (1) Binding preparation

[0009] According to the diameter of the binding core, select the size of the binding plate of the binding machine;

[0010] Determine the binding range in the frame:

[0011] The minimum distance between the initial binding strap and the upper end of the main-level iron of the lower iron yoke is not less than 20mm, and the maximum distance between the end binding strap and the lower end of the main-level iron of the upper iron yoke (the product that does not stack the upper iron yoke is considered according to the lower edge of the upper clamp) is not less than 185mm.

[0012] (ii) Binding materials and tooling

[0013] Tree binding material: resin-impregnated semi-dry mesh fiberglass tape without weft (without weft tape), specification: 0.3*50 (thickness*width); epoxy resin two-component ...

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PUM

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Abstract

The invention relates to a method for mechanically binding and manually binding a big transformer iron core, belonging to the technical field of transformer manufacturing processes. In the technical scheme, an iron core is manually bound before standing and mechanically bound after standing. After the iron core is completely bound, bi-component instant sealants are brush-painted on the outer surface, the upper end face and the lower end face of a bound weftless tape in order to prevent that resin on a binding tape without being subjected to a curing reaction is washed by coal oil when a transformer body enters a furnace to be dried. In the method for mechanically binding and manually binding the big transformer iron core, by utilizing an iron core binding machine, the continuous and nonstop binding of an iron core limb can be realized, and the requirements on the iron core for different binding thicknesses can be satisfied. By adopting the technology, the appearance is neat, the binding force of the iron core is uniform, the binding thickness can be effectively decreased and the cost is reduced.

Description

Technical field: [0001] The invention relates to a method for combining mechanical binding and manual binding of a large-scale transformer iron core, and belongs to the technical field of transformer manufacturing technology. Background technique: [0002] At present, in the large-scale transformer manufacturing industry, the iron cores of large-scale transformer products are mostly bound by hand with fast-drying resin-impregnated glass fiber binding tape (referred to as thin weft tape). During the binding process, each core column requires 4 or 5 people to operate at the same time. , Wrap the thin weft tape layer by layer on the iron core by hand, and calculate the binding thickness by artificially memorizing the number of binding layers. The operation is cumbersome, time-consuming and labor-intensive. Invention content: [0003] The purpose of the present invention is to provide a method of combining mechanical binding and manual binding of large transformer cores, whic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/26H01F41/02
Inventor 刘桂兰苗庆祥张建成吴芹蒋博毅祝亚静
Owner BAODING TIANWEI BAOBIAN ELECTRICAL
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