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Ceramic insulator with built-in tough frame and manufacturing method thereof

A technology of ceramic insulators and manufacturing methods, which is applied in the direction of textiles and papermaking, fiber chemical characteristics, etc., can solve the problems of low thermal conductivity, large thermal cracking tendency, fracture or fragmentation, etc., achieve uniform heating, reduce thermal cracking tendency, and increase toughness Effect

Inactive Publication Date: 2017-01-04
宁波高智科技咨询服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Among the relevant patents that have been applied in China, the patent "High Insulation Silicon Carbide / Boron Nitride Ceramic Material and Its Preparation Method" (application number: 201310294766.0, publication date: 2015-01-14) discloses a silicon carbide / nitrogen boron ceramic material and its preparation method, but these two materials are brittle materials, their fracture toughness is not higher than 6Mpa, easy to break or break under transportation and other vibration conditions, and the invention is entirely a monolithic ceramic, its Low thermal conductivity and high thermal cracking tendency; the patent "An Inorganic Nanocomposite Ceramic with Insulation and Thermal Conductivity and Its Preparation Method and Application" (application number: 201410310359.9, publication date: 2015-12-30) discloses an inorganic nanocomposite Ceramics, if the active ingredients are made into ceramics, they are all highly brittle materials. Because there is no skeleton support, the toughness is very low, and the comprehensive performance advantages of the material are not brought into full play.

Method used

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  • Ceramic insulator with built-in tough frame and manufacturing method thereof
  • Ceramic insulator with built-in tough frame and manufacturing method thereof

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Experimental program
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Effect test

Embodiment 1

[0034] according to figure 1 Shown is a ceramic insulator with a built-in toughness skeleton. The ceramic insulator with a built-in toughness skeleton is composed of a silicon carbide ceramic matrix 1 and a built-in carbon fiber toughness skeleton 2, wherein the three-dimensional dimensions of the built-in carbon fiber toughness skeleton 2 are larger than those of the silicon carbide ceramic matrix 1. The three-dimensional outline size is reduced by 20mm; the carbon fiber tough skeleton 2 radiates from the center to the edge, and there are 16 radiations in total, all of which are equally divided into four segments by four reinforcing fibers.

[0035] The manufacturing method of the ceramic insulator with built-in toughness skeleton comprises the following steps:

[0036] 1) Preparation of carbon fiber

[0037] ① Synthesize ammonia, propane and acrylonitrile into polyacrylonitrile resin by standard method;

[0038] ② Dissolving the polyacrylonitrile resin obtained in step ① i...

Embodiment 2

[0058] A ceramic insulator with a built-in toughness skeleton, the ceramic insulator with a built-in toughness skeleton is composed of a silicon carbide ceramic matrix 1 and a built-in carbon fiber toughness skeleton 2, wherein the three-dimensional dimensions of the contour of the built-in carbon fiber toughness skeleton 2 are larger than the three-dimensional contour dimensions of the silicon carbide ceramic matrix 1 It is lowered by 30mm; the carbon fiber tough skeleton 2 radiates from the center to the edge, and there are 8 radiations in total, all of which are equally divided into four sections by four reinforcing fibers.

[0059] The manufacturing method of the ceramic insulator with built-in toughness skeleton comprises the following steps:

[0060] 1) Preparation of carbon fiber

[0061] ① Synthesize ammonia, propane and acrylonitrile into polyacrylonitrile resin by standard method;

[0062] ② Dissolving the polyacrylonitrile resin obtained in step ① into the mixture ...

Embodiment 3

[0082] A ceramic insulator with a built-in toughness skeleton, the ceramic insulator with a built-in toughness skeleton is composed of a silicon carbide ceramic matrix 1 and a built-in carbon fiber toughness skeleton 2, wherein the three-dimensional dimensions of the contour of the built-in carbon fiber toughness skeleton 2 are larger than the three-dimensional contour dimensions of the silicon carbide ceramic matrix 1 Lowered by 28mm; the carbon fiber tough skeleton 2 radiates from the center to the edge, and there are 64 radiations in total, all of which are equally divided into four sections by four reinforcing fibers

[0083] The manufacturing method of the ceramic insulator with built-in toughness skeleton comprises the following steps:

[0084] 1) Preparation of carbon fiber

[0085] ① Synthesize ammonia, propane and acrylonitrile into polyacrylonitrile resin by standard method;

[0086] ② Dissolving the polyacrylonitrile resin obtained in step ① into the mixture of pol...

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Abstract

The invention discloses a ceramic insulator with a built-in tough frame and a manufacturing method thereof. The ceramic insulator comprises the following raw materials in parts by weight: 50-60 parts of silicon carbide powder, 10-15 parts of carbon powder, 10-15 parts of silicon dioxide, 6-8 parts of tetraethyl orthosilicate, 3-5 parts of anhydrous ethanol, 3-5 parts of pure water and 1.5-2.5 parts of thermoplastic phenolic resin. A central radial basket-shaped fiber touch frame woven from graphitized carbon fiber is implanted at the center of the ceramic insulator. The ceramic insulator disclosed by the invention has a volume resistivity of not less than 5 *10<12>.cm and a dielectric strength of not less than 650 kv / cm, a thermal conductivity of not less than 45 omega / m .K, a bending strength of not less than 550Mpa, a Young's modulus of not less than 400Gpa, and a fracture toughness of not less than 30Mpa. The ceramic insulator disclosed by the invention has the advantages of good internal thermal conductivity, good frame structure support, and good impact resistance and high temperature oxidation resistance.

Description

technical field [0001] The invention relates to the field of electronic components, in particular to a ceramic insulator with a built-in tough skeleton and a manufacturing method thereof. Background technique [0002] Insulators are special insulation controls that can play an important role in overhead transmission lines. [0003] In the early years, insulators were mostly used on utility poles, and gradually developed into high-voltage wire connection towers where many disc-shaped insulators were hung at one end. It was used to increase the creepage distance, usually made of glass or ceramics, and was called an insulator. Insulators play two basic roles in overhead transmission lines, namely supporting wires and preventing current from returning to the ground. These two roles must be guaranteed; at the same time, insulators should have sufficient electrical insulation strength, moisture resistance and high temperature resistance. [0004] Among the relevant patents that h...

Claims

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Application Information

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IPC IPC(8): C04B35/80C04B35/565C04B35/622C04B35/634C04B35/632C04B35/64D01F9/22
CPCC04B35/806C04B35/565C04B35/622C04B35/632C04B35/63476C04B35/64C04B2235/3418C04B2235/422C04B2235/6562C04B2235/6565C04B2235/661C04B2235/96D01F9/22
Inventor 何苗
Owner 宁波高智科技咨询服务有限公司
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