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Rod-shaped porcelain insulator and preparation method thereof

A porcelain insulator and rod-shaped technology, applied in the field of rod-shaped porcelain insulators and their preparation, can solve the problems of decreased electrical performance, poor temperature resistance, poor aging resistance, and service life discount, and achieve excellent tensile strength and compressive strength. , the effect of good insulation

Pending Publication Date: 2020-03-24
萍乡恒邦电力器材有限公司
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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

[0019] Weigh the following raw materials: 10kg of levodolite, 20kg of mullite powder, 3kg of titanium dioxide, 5kg of kaolinite, 1kg of lanthanum trioxide, 1kg of Faku clay, 4kg of zirconia, and 2kg of nano-cerium borate.

[0020] Prepare as follows:

[0021] S1. Beat the base material with water to obtain a slurry. After ball milling, sieving, iron removal, and mud squeezing, the moisture content is controlled at 12%. After aging, the blank is trimmed and formed. Add a base under the blank;

[0022] S2. Dry the blank obtained in step S1 naturally in the shade or the umbrella plate becomes off-white, and dry until the moisture content is 1%;

[0023] S3. After drying in step S2, dip the blank in the dipping tank, put it vertically into the kiln, fix the hanging firing head with a bracket in the kiln, and roast the blank in three stages with an oxidizing flame, the first stage is 420 °C Keep warm for 5 hours, keep warm at 980°C for 1h in the second section, keep warm at 1150°...

Embodiment 2

[0027] Weigh the following raw materials: 25kg of levolomite, 28kg of mullite powder, 7kg of titanium dioxide, 9kg of kaolinite, 2.5kg of lanthanum trioxide, 4kg of Faku clay, 8kg of zirconia, and 7kg of nano-cerium borate.

[0028] Prepare as follows:

[0029] S1. Beat the base material with water to obtain a slurry. After ball milling, sieving, iron removal, and mud squeezing, the moisture content is controlled at 15%. After aging, the blank is trimmed and formed. Add a base under the blank;

[0030] S2. Dry the blank obtained in step S1 naturally in the shade or the umbrella plate becomes off-white, and dry until the moisture content is 1.5%;

[0031] S3. After drying in step S2, dip the blank in the dipping tank, vertically load it into the kiln, fix the hanging firing head with a bracket in the kiln, and roast the blank in three stages with an oxidizing flame, the first stage at 500°C Keep warm for 7 hours, keep warm for 2 hours at 1000°C in the second section, keep war...

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PUM

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Abstract

The invention discloses a rod-shaped porcelain insulator and a preparation method thereof, and relates to the field of electroceramics technology. The insulator is prepared from the following raw materials in parts by mass: 10-30 parts of Zuoyun soil, 20-30 parts of mullite powder, 3-8 parts of titanium dioxide, 5-10 parts of kaolinite, 1-3 parts of lanthanum trioxide, 1-5 parts of Farkui clay, 4-10 parts of zirconium oxide and 2-8 parts of nano cerium borate. The rod-shaped porcelain insulator and the preparation method have the beneficial effects that the components and the proportion of theraw materials of the porcelain insulator are changed on the basis of the traditional preparation process, and the prepared porcelain insulator has more excellent tensile strength and compressive strength compared with the porcelain insulator in the prior art, and maintains good insulativity.

Description

technical field [0001] The invention relates to the technical field of electric porcelain, and more specifically relates to a rod-shaped porcelain 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 insulat...

Claims

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Application Information

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IPC IPC(8): H01B17/14H01B3/02H01B19/00C04B35/185
CPCC04B35/185C04B2235/3227C04B2235/3229C04B2235/3232C04B2235/3244C04B2235/3409C04B2235/349H01B3/02H01B17/145H01B19/00
Inventor 曾晨
Owner 萍乡恒邦电力器材有限公司
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