Pouring method of transformer

A casting method and technology for transformers, which are applied in the manufacture of inductors/transformers/magnets, electrical components, circuits, etc., to achieve the effect of reducing equipment cost, purchasing cost and manufacturing cost, and reducing process complexity

Inactive Publication Date: 2014-01-29
NINGXIA YINLI ELECTRICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process equipment used only needs a simple vibrating table and a simple pouring mold (there is no requirement for the pressure bearing strength of the mold)

Method used

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  • Pouring method of transformer

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specific Embodiment approach

[0009] The specific implementation of the technical solution of the present invention is as follows:

[0010] Step 1. Cleaning: Use the mixed solution of absolute ethanol + No. 20 solvent gasoline to clean the structural parts and molds of the castings, and use compressed air to clean the dust and other sundries on the castings.

[0011] Step 2. Assembly: Assemble and fix the product to be cast and the casting mold according to the drawing.

[0012] Step 3. Drying: Put the assembled product to be poured and the mold together in a drying oven for drying to remove moisture.

[0013] Step 4. Mixing the two-component resin of the castable: mix the two-component resin E5262 epoxy resin and E5262 curing agent in proportion, and the mass ratio of the mixing components is: E5262 epoxy resin 100: E5262 curing agent: 13.

[0014] Step 5. Pouring: Put the dried product to be cast and the mold assembly on the vibrating table, turn on the vibrating table, and vibrate while pouring, so tha...

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Abstract

The invention relates to the technical field of the manufacturing of resin-pouring transformers, particularly to a pouring method of a transformer. The pouring method comprises 1, cleaning a product to be poured and a die; 2, assembling the product to be poured and the die; 3, drying the product to be poured and the die; 4, mixing bi-component resin; 5, pouring in a vibration state; 6, naturally solidifying under an indoor temperature condition; 7, dismantling the die; 8, cleaning a poured product; 9, obtaining a finished product. According to the pouring method of the transformer, the environmental condition that a transformer must be poured under medium-high temperature conditions is changed fundamentally. Compared with a traditional pouring method of a transformer, the pouring method of the transformer does not need special heating and solidifying devices and vacuum pouring dies, accordingly the construction costs of the device are greatly reduced, and the production efficiency is greatly improved due to the fact that the process complexity is reduced significantly, solidification is performed under natural conditions and no cooling treatment is needed.

Description

technical field [0001] The invention relates to the technical field of manufacturing resin casting transformers, and is particularly suitable for the casting method of resins with high viscosity, high specific gravity and room temperature curing for medium and low voltage transformers. Background technique [0002] At present, the production of casting transformers at home and abroad basically uses resins with low viscosity, low specific gravity, and cured under medium and high temperature conditions for casting. The traditional process method is as follows: 1. Cleaning of the product to be cast and the mold → 2 Assembly of the product to be cast and the mold → 3 Drying of the product to be cast and the mold → 4 Mixing of two-component resins → 5 Casting under vacuum → 6 At medium and high temperature (100 ℃~180℃) to cure → 7 to remove the mold → 8 to cool down → 9 to clean the pouring → 10 to the finished product. The pouring process must be carried out in a vacuum state, ...

Claims

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Application Information

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IPC IPC(8): H01F41/00B29C39/02B29C39/24
Inventor 宋登吉于存德
Owner NINGXIA YINLI ELECTRICAL CO LTD
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