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One-step molding support member production process

A molding support and production process technology, applied in the direction of coil manufacturing, etc., can solve the problems of affecting the withstand voltage performance, complicated processing methods, and low production efficiency, and achieve the goals of improving electrical insulation performance, reducing secondary pollution, and reducing labor productivity. Effect

Inactive Publication Date: 2010-11-24
XINSHAO GUANGXIN ELECTRICAL INSULATING MATERIALS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the laminated cardboard used by transformers to make insulating structural parts is made of cardboard bonded and dried. Voltage resistance

Method used

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  • One-step molding support member production process
  • One-step molding support member production process

Examples

Experimental program
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Effect test

Embodiment 1

[0007] Embodiment 1: as figure 1 As shown, the wood pulp is purified and pretreated, then pulped and crushed, concentrated to a concentration of 4.0±0.5%, and then enters the coarse stock tank, and the pulp is sent to the refiner through the pulp pump. The refined pulp is sent to the pulp tank , and then sent to the high-efficiency low-consistency slag remover through the pulp pump. After the slag is removed, it enters the pulp stabilization box, and then is sent to the wet paper blank forming device through the pulp pump, and the wet paper blank is sent into the mold with the inner net , together with the mold, sent to the hot press machine to squeeze water, dry, the temperature is 120±5°C, the drying time depends on the thickness, dry to the moisture content of the cardboard 4-6%, unload the board and enter the semi-finished product room for 3-5 days, and then Finishing and trimming are carried out, and after inspection, vacuum packaging is put into storage.

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PUM

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Abstract

The invention relates to a one-step molding support member production process which comprises the following steps: pretreating a high chemically pure insulating wood pulp, pulping, concentrating to a pulp chest, transmitting the paper pulp to a pulp grinder by utilizing a pump, grinding the paper pulp to a beating degree of 30+ / -2 degrees SR and a wet weight of 13+ / -2 g so as to meet process requirements, preparing the ground pulp into a concentration of 0.6+ / -0.1%, removing impurities by using a slag separator, transmitting the pulp to a pulp smoothening box, feeding the paper pulp into a wet raw paper shaper through a pipeline and the pump, making the paper pulp into wet raw paper with a certain thickness, and transferring the wet raw paper into a mold the lateral parts and the bottom part of which are provided with meshes, wherein an inner net is arranged in the mold; and when the thickness of the raw paper reaches the specified thickness, covering a layer of meshing fabric on the raw paper, placing the mold with the raw paper in a hot press, and heating to finish hot pressing. By using the one-step molding process, the invention reduces the secondary pollution, saves the energy and lowers the production cost. The production process is safe and reliable and is applicable to the high-voltage transformer.

Description

technical field [0001] The invention relates to a production process of a one-time forming support. Background technique [0002] One-time forming supports are mainly used to replace laminated cardboard for transformers as insulating structural parts. At present, the laminated cardboard used by transformers to make insulating structural parts is made of cardboard bonded and dried. Voltage resistance performance. Contents of the invention [0003] The purpose of the present invention is to design a high-quality, energy-saving production process for a one-time forming support. [0004] The technical solution of the present invention is realized in the following way: the highly chemically pure insulating wood pulp is pretreated, pulped, concentrated to the pulp tank, and the pulp is transported to the refiner with a pump to grind it to a degree of knocking of 30±2 that meets the technological requirements. °SR, wet weight 13±2g, make the ground pulp into a concentration of...

Claims

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Application Information

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IPC IPC(8): H01F41/12
Inventor 李湘华
Owner XINSHAO GUANGXIN ELECTRICAL INSULATING MATERIALS
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