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Electric power insulator and preparation method thereof

A technology for insulators and electric power, applied in the field of electric insulators and their preparation, can solve problems such as shortened service life, poor temperature resistance, poor aging resistance, and electrical performance decline, achieve narrow particle size distribution range, improve product qualification rate, and mechanical strength high effect

Inactive Publication Date: 2020-01-31
萍乡市鸿泰高压电瓷电气厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, organic polymer materials have obvious disadvantages, such as poor temperature resistance and aging resistance.
The maximum operating temperature of general organic insulating materials does not exceed 300°C, and its service life is greatly reduced when the temperature is high
As the ambient temperature rises, the aging speed of organic polymer materials is accelerated, the service life is shortened, and problems such as cracking, mechanical and electrical performance degradation occur, which seriously affect the quality and stability of products, and cannot fully meet the needs of new high-speed power.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Weigh the following raw materials in parts by mass: 30 parts of ceramic powder, 20 parts of mullite powder, 20 parts of Faku clay, 3 parts of titanium dioxide, 5 parts of quartz powder, 6 parts of bauxite, 0.5 parts of samarium trioxide, talcum powder 1 serving.

[0022] Prepare as follows:

[0023] S1. Wet mixing: take the raw materials and put them in a mixer for mixing to obtain a mixed material;

[0024] S2. Drying: drying the mixed material by spraying to obtain a dried material;

[0025] S3. Pre-burning: transfer the dry material to a porcelain furnace for pre-burning at a temperature range of 1110° C. to obtain a pre-fired material;

[0026] S4, ball milling: adding the pre-fired material into the ball mill and milling for 1 hour;

[0027] S5, firing and glazing;

[0028] S6, drying;

[0029] S7, Grinding glue;

Embodiment 2

[0031] 30-40 parts of ceramic powder, 25 parts of mullite powder, 25 parts of Faku clay, 5 parts of titanium dioxide, 7 parts of quartz powder, 8 parts of bauxite, 1 part of samarium trioxide, and 2 parts of talc powder.

[0032] Prepare as follows:

[0033] S1. Wet mixing: take the raw materials and put them in a mixer for mixing to obtain a mixed material;

[0034] S2. Drying: drying the mixed material by spraying to obtain a dried material;

[0035] S3. Pre-burning: transfer the dry material to a porcelain furnace for pre-burning at a temperature range of 1130° C. to obtain a pre-fired material;

[0036] S4, ball milling: adding the pre-fired material into the ball mill and milling for 3 hours;

[0037] S5, firing and glazing;

[0038] S6, drying;

[0039] S7, Grinding glue;

Embodiment 3

[0041] Weigh the following raw materials in parts by mass: 40 parts of ceramic powder, 30 parts of mullite powder, 30 parts of Faku clay, 8 parts of titanium dioxide, 10 parts of quartz powder, 12 parts of bauxite, 1.5 parts of samarium trioxide, talcum powder 3 copies.

[0042] Prepare as follows:

[0043] S1. Wet mixing: take the raw materials and put them in a mixer for mixing to obtain a mixed material;

[0044] S2. Drying: drying the mixed material by spraying to obtain a dried material;

[0045] S3. Pre-burning: transfer the dry material to a porcelain furnace for pre-burning at a temperature range of 1150° C. to obtain a pre-fired material;

[0046] S4, ball milling: adding the pre-fired material into the ball mill and milling for 5 hours;

[0047] S5, firing and glazing;

[0048] S6, drying;

[0049] S7, Grinding glue;

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PUM

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Abstract

The invention discloses an electric power insulator and a preparation method thereof, and belongs to the technical field of electric ceramic. The electric power insulator is prepared from the following raw materials in parts by mass: 30-40 parts of ceramic powder, 20-30 parts of mullite powder, 20-30 parts of Faku clay, 3-8 parts of titanium dioxide powder, 5-10 parts of quartz powder, 6-12 partsof bauxite, 0.5-1.5 parts of samarium sesquioxide and 1-3 parts of talcum powder. The preparation method comprises the following steps: S1, wet mixing; S2, drying; S3, pre-sintering; S4, ball milling;S5, firing and glazing; S6, drying; and S7, grinding and cementing. The beneficial effects are that by reasonably selecting clay and materials, the firing performance and process performance of the material are improved, the formula is reasonable, the mechanical performance is good, the stability is high, and the rate of finished products is high.

Description

technical field [0001] The invention relates to the technical field of electric porcelain, and more specifically, to an electric insulator and a preparation method thereof. Background technique [0002] In the prior art, an insulator is a special insulation control, which can play an important role in overhead transmission lines. Now it has been developed that a lot of disc-shaped insulators are hung on one end of the high-voltage wire connection tower, which is to increase the creepage distance and is usually made of ceramics. Insulators should not fail due to various electromechanical stresses caused by changes in the environment and electrical load conditions, otherwise the insulator will not play a significant role and will impair the service and operating life of the entire line. Porcelain insulators play two basic roles in overhead transmission lines, namely supporting the conductors and preventing current from returning to ground. Porcelain insulators are composed o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/13C04B33/16C04B33/26C04B41/86
CPCC04B33/131C04B33/16C04B33/26C04B41/009C04B41/5022C04B41/86C04B2235/3217C04B2235/3224C04B2235/3232C04B2235/3463
Inventor 李雪玲
Owner 萍乡市鸿泰高压电瓷电气厂
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