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Manufacturing method of insulating support rod

A manufacturing method and technology for support rods, which are applied to insulators, coil manufacturing, electrical components, etc., can solve the problems of scrapping, easily broken, and no insulating support rods of transformer devices, and achieve high production efficiency, good quality, and excellent electrical Effect of insulating properties and mechanical properties

Inactive Publication Date: 2010-08-04
XIAN CHAOMA COMPOSITE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the traditional support components are pot insulators. Because the support method of pot insulators is easy to break during transportation, the entire device of the transformer will be scrapped. Therefore, the production technology of transformers in the world gradually adopts high-voltage insulating rod support structures. However, there are no relevant reports abroad about the materials and manufacturing methods used for this type of components.
Since high-voltage insulating support rod components require high mechanical strength, electrical insulation strength and electrical performance, there is currently no domestic technology for producing such insulating support rods.

Method used

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  • Manufacturing method of insulating support rod
  • Manufacturing method of insulating support rod
  • Manufacturing method of insulating support rod

Examples

Experimental program
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Effect test

Embodiment 1

[0022] for 50mm, 52mm, It is manufactured for an insulating support rod of 36mm and L is 466mm (the schematic diagram of its structure is shown in image 3 shown)

[0023] (1) On the surface of the male mold 2 of the RTM forming mold (such as figure 1 (shown in section L in the middle) spray a layer of 1904-045# vinyl resin with a thickness of 3.0mm, then put the male mold coated with vinyl resin into an oven to cure the vinyl resin, and the curing temperature is 70-80°C , curing time is 1~5h;

[0024] (2) The positive mold of the RTM forming mold solidified in step (1) is wound up according to the designed 18 layers with the dry prefabricated body not soaked in glue; the dry prefabricated body is reinforced material Kevlar-49 fiber and Mixed fabric of polyester fiber; the weaving process of the dry prefabricated body is: take Kevlar-49 fiber as the warp direction of the mixed fabric, and use polyester fiber as the weft direction of the mixed fabric to carry out plane ...

Embodiment 2

[0030] for 38mm, 46mm, 20mm, L is 354mm insulating support bar manufacturing (the schematic diagram of its structure is shown in image 3 shown)

[0031] (1) On the surface of the male mold 2 of the RTM forming mold (such as figure 1 (shown in section L in the middle) spray a layer of 1904-045# vinyl resin with a thickness of 3.0mm, then put the male mold coated with vinyl resin into an oven to cure the vinyl resin, and the curing temperature is 70-80°C , curing time is 1~5h;

[0032] (2) The positive mold of the RTM forming mold solidified in step (1) is wound up according to the designed 25 layers with the dry prefabricated body not soaked in glue; the dry prefabricated body is reinforced material F-12 fiber and Mixed fabric of polyester fiber; the weaving process of the dry prefabricated body is: use F-12 fiber as the warp direction of the mixed fabric, and use polyester fiber as the weft direction of the mixed fabric to carry out plane weaving;

[0033] (3) Assemb...

Embodiment 3

[0038] for 96mm, 100mm, Manufactured for an insulating support rod of 74mm and L of 2000mm (the schematic diagram of its structure is shown in image 3 shown)

[0039] (1) On the surface of the male mold 2 of the RTM forming mold (such as figure 1 (shown in section L in the middle) spray a layer of 1904-045# vinyl resin with a thickness of 3.0mm, then put the male mold coated with vinyl resin into an oven to cure the vinyl resin, and the curing temperature is 70-80°C , curing time is 1~5h;

[0040] (2) The positive mold of the RTM forming mold solidified in step (1) is wound up according to the designed 33 layers with the dry prefabricated body not soaked in glue; the dry prefabricated body is reinforced material Kevlar-49 fiber and Mixed fabric of polyester fiber; the weaving process of the dry prefabricated body is: take Kevlar-49 fiber as the warp direction of the mixed fabric, and use polyester fiber as the weft direction of the mixed fabric to carry out plane weavin...

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Abstract

The invention discloses a manufacturing method of an insulating support rod, and the method comprises the following steps: spraying a certain thickness of gel-coating resin on the surface of a male mole of a resin transfer mold, curing in an oven, then using a dry preform which is not dipped with glue for winding the well cured male mold of the resin transfer mold according to the designed number of layers, assembling the resin transfer mold, sealing and carrying out vacuum pumping during the assembly process, finally using an injection machine for injecting special injection resin into the well sealed resin transfer mold, placing into the oven for curing, demolding, trimming rough selvedges and obtaining the insulating support rod. The insulating support rod product has the advantages of good quality of the inner surface and the outer surface, light weight, high dimensional precision, excellent electric insulation performance and mechanical properties; and the manufacturing method of the insulating support rod has the advantages of low cost, short cycle and high reliability.

Description

technical field [0001] The invention belongs to the technical field of composite material preparation, and in particular relates to a method for manufacturing a high-voltage insulating support rod. Background technique [0002] High-voltage insulating support rods are important components of transformers in power stations and high-voltage substations, mainly supporting the transformer coils. Most of the traditional support components are pot insulators. Because the support method of pot insulators is easy to break during transportation, the entire device of the transformer is scrapped. Therefore, the production technology of transformers in the world gradually adopts high-voltage insulating rod support structures. However, there are no relevant reports about the used materials and manufacturing methods of this type of components abroad. Since the high-voltage insulating support rod components are required to have high mechanical strength, electrical insulation strength and ...

Claims

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Application Information

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IPC IPC(8): H01B19/00H01F41/04
Inventor 高克洲邓杰景宽吴大云李洪国姚成城韩胜刘文慧徐立民张军
Owner XIAN CHAOMA COMPOSITE MATERIALS
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