Process for producing transposed oxhorn cushion block of insulated coil of transformer

A technology of insulating coils and production processes, which is applied in coil manufacturing, textiles, papermaking, papermaking, etc., can solve the problems of affecting withstand voltage performance, complicated processing methods, and low production efficiency, so as to improve electrical insulation performance and reduce secondary pollution , High oil absorption effect

Inactive Publication Date: 2010-07-21
XINSHAO GUANGXIN ELECTRICAL INSULATING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the production of transformer insulation coil transposition horn pads is made by bonding cardboard, drying, manual processing, and multiple trimmings. This processing method is complicated, the production efficiency is low, and re-pollution is likely to occur during the processing process, which affects the withstand voltage performance. , The quality and applicability of injection molding transformer insulation coil transposition horn pads are superior to similar products that are glued with cardboard, dried and processed by hand

Method used

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  • Process for producing transposed oxhorn cushion block of insulated coil of transformer

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Experimental program
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Embodiment Construction

[0011] Embodiment 1 and 2, the parameter of embodiment 2 is the data in brackets.

[0012] The wood pulp 1 is purified and pretreated 2, and the pulp crushed by the pulper 3 is concentrated 4 to a concentration of 3.5 (4.5)% and enters the pulp pool 5, and the pulp is sent to the refiner 7 through the pulp pump 6, and the pulping degree is 35 (39) ° SR, wet weight 9 (13) grams, concentration 1.3 (1.5) % pulp is sent into the slurry tank 8, and then sent to the high-efficiency slag remover 10 through the slurry pump 9 and enters the slurry tank 11, with a high-pressure slurry pump 12 Inject the pulp into the forming mold 13, stop the grouting when the injection pressure reaches 0.8 (1.2) MPa, send the mold with the slurry into the hot press 14 for drying; the drying time depends on the thickness of the product, and the dry The pressure is 57 (63) MPa, and the drying temperature is 115 (125) °C. After drying and forming, cool in the mold for 15 to normal temperature for more th...

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Abstract

The invention belongs to a process for producing a transposed oxhorn cushion block of an insulated coil of a transformer, which comprises the following steps of: purifying and pre-treating a wood pulp; concentrating the pulp which is crushed through a pulper to have the concentration of 3.5-4.5 percent and enabling the pulp to enter a pulp pool; delivering the pulp to a pulp grinder through a pulp pump; feeding the pulp with 35-39 degrees SR of beating degree, 9-13g of wet weight and 1.3-1.5 percent of concentration into the pulp pool; again feeding the pulp into an effective deslagger through a pulp pump to enter a pulp pool; injecting the paper pulp into a forming mould through a high pressure pulp pump; stopping injecting the pulp when the injection pressure reaches 0.8-1.2MPa, and feeding the mould in which the pulp is injected into a hot press machine; and carrying out cooling, demoulding, self-check finishing, inspection package and warehouse entry after the paper pulp is dried and molded.

Description

technical field [0001] The invention relates to a production process of an injection-molded transformer insulating coil transposition horn pad, belonging to the field of papermaking technology and insulating materials for transformers. Background technique [0002] Injection-molded transformer insulation coil transposition horn pad replaces the traditional transformer insulation coil transposition horn pad made of laminated cardboard. At present, the production of transformer insulation coil transposition horn pads is made by bonding cardboard, drying, manual processing, and multiple trimmings. This processing method is complicated, the production efficiency is low, and re-pollution is likely to occur during the processing process, which affects the withstand voltage performance. , The quality and applicability of injection molding transformer insulation coil transposition horn pads are superior to similar products that are glued with cardboard, dried and processed by hand. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/04D21J1/20D21J3/12
Inventor 邓杰
Owner XINSHAO GUANGXIN ELECTRICAL INSULATING MATERIALS
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