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Electrical porcelain added with aluminum manufacturer sludge and preparation method thereof

A technology of sludge and electric porcelain in aluminum factory, applied in the field of high-voltage electric porcelain, can solve the problems of poor process level, low strength, uneven product quality, etc., and achieve the effect of stable and mature process and simple preparation of raw materials

Inactive Publication Date: 2015-08-19
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with similar foreign companies, most of the domestic companies have poor craftsmanship, resulting in uneven product quality
At present, the strength of domestic and ordinary porcelain is 60-80kN / cm 2 , the strength of high-strength porcelain is 100-180kN / cm 2 , 15%-25% lower than the strength of foreign porcelain bodies of the same type
Therefore, the insufficient strength of electric porcelain is the most prominent problem restricting domestic high-voltage electric porcelain

Method used

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  • Electrical porcelain added with aluminum manufacturer sludge and preparation method thereof
  • Electrical porcelain added with aluminum manufacturer sludge and preparation method thereof
  • Electrical porcelain added with aluminum manufacturer sludge and preparation method thereof

Examples

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Effect test

preparation example Construction

[0023] The preparation method comprises the following steps:

[0024] (1) Batching; raw materials are baked at 90~100°C for 12 hours, weighed according to the formula, and compounded;

[0025] (2) Ball milling: zirconium balls are used, the volume ratio of balls to materials is 2:1, and they are passed through a 270-mesh sieve;

[0026] (3) Iron removal, mud squeezing, staleness, and mud refining: Use electromagnetic coils and permanent magnet iron removal equipment to sieve and remove iron. After adding water to squeeze the mud, the moisture content is 22%, the aging time is 72h, and the vacuum degree is 0.05~0.09 Practicing mud under MPa;

[0027] (4) Molding: Extrusion molding is carried out under a vacuum degree of 0.01MPa, and the molded sample is a columnar shape with a diameter of 2.3cm and a length of 13.6cm;

[0028] (5) Drying; first dry in the shade for 12 hours, then bake at 90~100°C for 48 hours;

[0029] (6) Kiln sintering; heating rate is 5°C / min, heat preser...

Embodiment 1

[0032] Embodiment 1: Preparation and sintering of electric porcelain

[0033] According to the ratio of each component in Table 1, a certain amount of raw materials (Puxian soil, Xiaxi soil, panning soil, lithium feldspar, Zhangzhou soil, coke gemstone, feldspar powder, bauxite, aluminum plant sewage) were weighed. Mud), and then according to the aforementioned ceramic preparation steps, the processes of ball milling, iron removal, mud squeezing, aging, mud refining, molding and drying are sequentially carried out. The dried samples were placed in a programmable furnace for sintering. figure 1 It is a schematic diagram of the fracture strength after sintering with different contents of aluminum plant sludge. figure 1 It shows that the fracture strength of the sample added with 2% aluminum plant sludge is 1291±16MPa.

Embodiment 2

[0034] Embodiment 2: Preparation and sintering of electric porcelain

[0035] According to the ratio of each component in Table 1, a certain amount of raw materials (Puxian soil, Xiaxi soil, panning soil, lithium feldspar, Zhangzhou soil, coke gemstone, feldspar powder, bauxite, aluminum plant sewage) were weighed. Mud), then prepare electric porcelain according to the technique of example 1. like figure 1 As shown, the fracture strength of the sample added with 5% aluminum plant sludge is 1388±13MPa.

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Abstract

The invention discloses an electrical porcelain added with aluminum manufacturer sludge and a preparation method thereof. Raw materials for the electrical porcelain added with the aluminum manufacturer sludge include, by weight, SiO2 10-20%, Al2O3 10-25%, Fe2O3 10-20%, TiO2 1-5%, CaO 2-10%, MgO 0-3%, K2O 5-15%, Na2O 3-8% and the aluminum manufacturer sludge 2-15%. The added aluminum manufacturer sludge can promote crystallization process of a mullite phase in the electrical porcelain, and the breakage strength of the electrical porcelain is remarkably improved; waste reutilization is achieved, and the electrical porcelain has important economic and social benefit. The electrical porcelain is simple in raw material preparation, easy to obtain and stable and mature in process and meets the practical and industrial conditions.

Description

technical field [0001] The invention belongs to the field of high-voltage electric porcelain, and in particular relates to an electric porcelain added with aluminum factory sludge and a preparation method thereof. Background technique [0002] High-voltage electric porcelain refers to electric porcelain products with a rated voltage higher than 1kV. It mainly refers to insulating ceramics used in high-voltage transmission lines, power stations and various electrical appliances, also known as insulators, and is an important part of the electric power industry. High-voltage electric porcelain is divided into silicon electric porcelain and aluminum electric porcelain according to the different chemical components contained in it. Aluminum electric porcelain is divided into aluminum porcelain and high-strength aluminum porcelain. According to the different application fields of electric porcelain, the electric porcelain involved in the present invention Belongs to high-strength...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/185C04B35/622
Inventor 张腾刘鸿琳杜欣航李巍婷张琪颜佳佳魏颖唐电
Owner FUZHOU UNIV
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