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Electric porcelain insulator and preparation method thereof

A technology for insulators and electric porcelain, applied in the field of electric porcelain insulators and their preparation, can solve the problems of poor toughness, impact resistance, and obvious poor high temperature resistance effect, achieve temperature resistance improvement, improve modification effect, and facilitate modification treatment. Effect

Inactive Publication Date: 2020-02-11
欧阳方友
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]The ceramic insulators used in traditional electric locomotives are mostly rubber and resin composites. Insulators formed by compounding ores, such as Chinese Patent Document Publication No. CN108101526A discloses an electric porcelain insulator and its preparation method. The electric porcelain insulator includes the following raw materials in parts by mass: 40-60 parts of ceramic powder, 20-30 parts of mullite powder , 3-8 parts of mineralizer, 8-15 parts of dispersant, 0.5-1 part of forming agent, 2-12 parts of rare earth dopant; the preparation method of the electric porcelain insulator is carried out according to the following steps: wet mixing: take the The ceramic powder, the mullite powder, the mineralizer and the rare earth dopant are mixed in a mixer to obtain a mixed material; dry; the high temperature resistance of this kind of electric porcelain insulator is obviously improved, but the toughness , Impact resistance will become worse, how to deploy materials such as rubber, resin materials and ceramics, in terms of improving high temperature performance, coordinating toughness and impact resistance are the main directions of research in the present invention

Method used

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Examples

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Effect test

Embodiment 1

[0027] An electric porcelain insulator of this embodiment includes the following raw materials in parts by weight:

[0028] 55 parts of modified ceramics, 20 parts of pyrophyllite, 10 parts of clay, 4 parts of activated silica, and 2 parts of wollastonite; the preparation method of modified ceramics is to firstly treat the ceramics with proton irradiation, and then add them to a ball mill for grinding , first grind at a speed of 100r / min for 10min, then add a rubber modifier, and then grind at a speed of 200r / min for 30min, and put the obtained grinding slurry into a stainless steel autoclave to seal, and then react at 120°C for 15h , and then cooled to room temperature, the solution was centrifuged at a speed of 6000r / min for 15min, and the obtained slurry was sent to a calciner for calcination, and calcined for 10min at a calcining temperature of 200°C to obtain a modified ceramic.

[0029] The energy of protons during proton irradiation in this embodiment is 140keV, and the...

Embodiment 2

[0037] An electric porcelain insulator of this embodiment includes the following raw materials in parts by weight:

[0038] 65 parts of modified ceramics, 30 parts of pyrophyllite, 20 parts of clay, 10 parts of active silica, and 5 parts of wollastonite; the preparation method of modified ceramics is to firstly treat the ceramics with proton irradiation, and then add them to a ball mill for grinding First, grind at a speed of 200r / min for 10min, then add a rubber modifier, and then grind at a speed of 600r / min for 40min, and put the obtained grinding slurry into a stainless steel autoclave to seal, and then react at 130°C for 17h , then cooled to room temperature, the solution was centrifuged at 8000r / min for 25min, and the obtained slurry was sent to a calciner for calcination, and calcined for 20min at a calcining temperature of 300°C to obtain modified ceramics.

[0039] The energy of protons during proton irradiation in this embodiment is 150keV, and the number of protons ...

Embodiment 3

[0048] An electric porcelain insulator of this embodiment includes the following raw materials in parts by weight:

[0049] 60 parts of modified ceramics, 25 parts of pyrophyllite, 15 parts of clay, 7 parts of activated silica, and 3.5 parts of wollastonite; the preparation method of modified ceramics is to firstly treat the ceramics with proton irradiation, and then add them to a ball mill for grinding , first grind at a speed of 150r / min for 10min, then add a rubber modifier, then grind at a speed of 400r / min for 35min, and put the obtained grinding slurry into a stainless steel autoclave to seal, and then react at 125°C for 16h , then cooled to room temperature, the solution was centrifuged at a speed of 6000-8000r / min for 20min, and the obtained slurry was sent to a calciner for calcination, and calcined for 15min at a calcining temperature of 250°C to obtain modified ceramics.

[0050] The energy of protons during the proton irradiation of this embodiment is 145keV, and t...

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Abstract

The invention discloses an electric porcelain insulator, which comprises the following raw materials by weight: 55-65 parts of modified ceramic, 20-30 parts of pyrophyllite, 10-20 parts of clay, 4-10parts of active silica and 2-5 parts of wollastonite. The preparation method of the modified ceramic includes: carrying out proton irradiation treatment on ceramic, then adding the treated ceramic into a ball mill for grinding, and conducting grinding at a rotating speed of 100-200r / min for 10min. According to the invention, the ceramic is combined with pyrophyllite, clay and the like by modification, pyrophyllite has high temperature resistance, active silica has activation capacity under calcination and other conditions, and can improve the combination effect of the raw materials, wollastonite has a needle-like structure, and can penetrate the material to perfect the toughness, impact resistance, high temperature resistance and other properties of the material.

Description

technical field [0001] The invention relates to the technical field of electric porcelain insulators, in particular to an electric porcelain insulator and a preparation method thereof. Background technique [0002] An insulator is a special insulation control that can play an important role in overhead transmission lines. It plays two basic functions in overhead transmission lines, namely supporting wires and preventing current from returning to the ground, and also to increase creepage distance. Usually made of glass or ceramic. In practical applications, porcelain insulators have been widely used due to their advantages in weather resistance, mechanical strength and cost. There are many classifications of porcelain insulators, which can be divided into pillar (column) insulators, suspension insulators, pin insulators, butterfly insulators, and tensioned insulators according to their structure. [0003] Most of the electric porcelain insulators used in traditional electri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/04C04B33/13C04B35/626C04B35/645
CPCC04B33/04C04B33/13C04B35/62605C04B35/645C04B2235/3418C04B2235/3454C04B2235/402C04B2235/5454C04B2235/656C04B2235/6567C04B2235/9607
Inventor 欧阳方友
Owner 欧阳方友
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