Method for manufacturing high-voltage electro-ceramic insulator

A technology of high-voltage electric porcelain and its manufacturing method, which is applied in the field of electric porcelain equipment, can solve the problems of poor resistance to rapid changes in cold and heat, poor antifouling performance, excessive harmful stress expansion coefficient, and loss of strength of insulators, and achieve excellent electrical performance and good insulation shock. Wear strength, small size effect

Inactive Publication Date: 2012-12-12
大悟县博源电瓷厂
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In traditional high-quartz porcelain insulators, microcracks caused by internal quartz / cristobalite particles cause the insulator under load to lose strength due to crack growth, resulting in harmful stress and excessive expansion coefficient, poor insulation effect, and certain dangers ;Alumina ceramics are higher than quartz ceramics and are more stable, but they still have certain limitations in high-voltage transmission; high-alumina ceramics have good mechanical properties and good insulation breakdown strength, which can better meet the current high-voltage transmission needs
Moreover, the products produced by traditional manufacturing electric porcelain technology have high aging rate, poor cold and heat resistance and antifouling performance, low mechanical strength, large size, high cost, and the pass rate in the whole production process is only about 50-60%, etc. shortcoming

Method used

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  • Method for manufacturing high-voltage electro-ceramic insulator

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Embodiment 1

[0039] A method for manufacturing a high-voltage electric porcelain insulator, the specific steps of which are as follows:

[0040] (1) Weight percentage of high voltage electric ceramic material components:

[0041] 30% high alumina powder, 5% black mud, 15% Nanzhang soil, 20% left cloud soil, 15% feldspar, 15% refractory soil;

[0042] (2) Material mixing: Mix the above material components according to the percentage requirements, and send them to the ball mill after mixing;

[0043] (3) Ball milling after mixing: Ball milling after mixing: mix the mixed material with water, material: water = 1:1, and mill in the ball mill for 13-17 hours to make the fineness reach 0.8-1.2 %;

[0044] (4) Screening: TW-1-G type equipment is usually used, and the screen density is generally 120-170 holes. To screen the mud, a hexagonal drum screen and a fixed center vibrating screen are used in series, through which the fineness of the billet can be controlled. And keep the mud uniform, an...

Embodiment 2

[0071] A method for manufacturing a high-voltage electric porcelain insulator, the specific steps of which are as follows:

[0072] (1) Weight percentage of high voltage electric ceramic material components:

[0073] High alumina powder 45%, black mud 7%, Nanzhang soil 17%, left cloud soil 14%, feldspar 6%, refractory soil 11%;

[0074] (2) Material mixing: Mix the above material components according to the percentage requirements, and send them to the ball mill after mixing;

[0075] (3) Ball milling after mixing: Ball milling after mixing: mix the mixed material with water, material: water = 1:1, and mill in the ball mill for 13-17 hours to make the fineness reach 0.8-1.2 %;

[0076] (4) Screening: TW-1-G type equipment is usually used, and the screen density is generally 120-170 holes. To screen the mud, a hexagonal drum screen and a fixed center vibrating screen are used in series, through which the fineness of the billet can be controlled. And keep the mud uniform, and...

Embodiment 3

[0103] A method for manufacturing a high-voltage electric porcelain insulator, the specific steps of which are as follows:

[0104] (1) Weight percentage of high voltage electric ceramic material components:

[0105] High alumina powder 55%, black mud 2%, Nanzhang soil 8%, left cloud soil 15%, feldspar 10%, refractory soil 10%;

[0106] (2) Material mixing: Mix the above material components according to the percentage requirements, and send them to the ball mill after mixing;

[0107] (3) Ball milling after mixing: Ball milling after mixing: mix the mixed material with water, material: water = 1:1, and mill in the ball mill for 13-17 hours to make the fineness reach 0.8-1.2 %;

[0108] (4) Screening: TW-1-G type equipment is usually used, and the screen density is generally 120-170 holes. To screen the mud, a hexagonal drum screen and a fixed center vibrating screen are used in series, through which the fineness of the billet can be controlled. And keep the mud uniform, and...

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Abstract

The invention discloses a method for manufacturing high-voltage electro-ceramic insulator, which comprising the following steps: (1) selecting high-voltage electro-ceramic material components according to weight proportion; (2) mixing materials; (3) grinding mixed materials in a ball milling method; (4) sieving the grinded materials; (5) removing iron; (6) pressing soil; (7) staling the materials; (8) pugging the soil at vacuum; (9) molding the materials; (10) drying the material; (11) washing billets; (12) glazing the billets; (13) overlying sand on the billets; (14) baking the billets; (15) inspecting porcelain; (16) cutting the porcelain; (17) grinding the porcelain; (18) cementing the porcelain; (19) detecting problems; and (20) packaging a product and putting the product in storage. According to advantages of the method, the product is characterized by excellent electric performance, good insulation performance, high mechanical strength, small figure, beautiful appearance, convenient mounting and has good mechanical performance and good insulation puncture strength and can satisfy the current high-voltage transport demand preferably.

Description

technical field [0001] The invention relates to the technical field of electric porcelain devices, in particular to a method for manufacturing a high-voltage electric porcelain insulator with good electrical properties, mechanical properties, cold and heat resistance, and antifouling properties. Background technique [0002] With the widespread use of electricity by human beings, the application of electricity is becoming wider and wider, and the requirements for insulators required in the process of electricity transmission are becoming higher and stricter. The performance of porcelain insulators is determined by its porcelain material and structure. In traditional high-quartz porcelain insulators, microcracks caused by internal quartz / cristobalite particles cause the insulator under load to lose strength due to crack growth, resulting in harmful stress and excessive expansion coefficient, poor insulation effect, and certain dangers ;Alumina ceramics are higher than quartz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/24C04B33/13C04B33/34
Inventor 张松尹曦禾刘宗洲
Owner 大悟县博源电瓷厂
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