High-alumina direct current porcelain insulator and preparation method thereof

A porcelain insulator and high-alumina technology, which is applied in the formulation and preparation of high-alumina DC porcelain insulators, can solve the problem of poor mechanical, electrical and thermal performance of electric porcelain, low mechanical strength, and inability to greatly improve the bending strength of porcelain and other problems, to achieve the effect of easy process control, good mechanical properties and low production cost
CN102786289AInactive Publication Date: 2012-11-21JIANGSU SOUTH PORCELAIN INSULATOR CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
JIANGSU SOUTH PORCELAIN INSULATOR CO LTD
Publication Date
2012-11-21
Estimated Expiration
Not applicable Β· inactive patent
Patent Text Reader

Abstract

The invention discloses a high-alumina direct current porcelain insulator. The insulator comprises, by weight, 10-15 parts of smolmitza, 1-5 parts of high-alumina bauxite, 30-40 parts of alumina, 5-10 parts of white plaster, 5-10 parts of potassium feldspar, 10-20 parts of Jinyang soil and 15-25 parts of Bo'ai clay. The porcelain insulator is good in mechanical performance and low in production cost, process control is easy, and the high-alumina bauxite and the smolmitza are used, so that the ball milling time is shortened, the cost is reduced and the process performance is improved. According to the insulator, 5-10% of low-sodium potassium feldspar is introduced, and the Na content in chemical components of a semifinished product is less than 0.2%, so that the insulator breakage caused by local swelling stress generated during migration of alkali metal sodium ions in an electrical porcelain material can be prevented, and simultaneously, the problems that the insulator is broken down under the long-term action of a direct current field due to the fact that electric fields are not distributed evenly caused by conducting layers of different specific resistance, which are formed inside a porcelain part during ion migration, can be solved.
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Description

technical field

[0001] The invention belongs to the technical field of electric porcelain, and in particular relates to a high-alumina DC porcelain insulator formula and a preparation method thereof. Background technique

[0002] Electric porcelain billet refers to a mixture of clay raw materials, flux raw materials and other raw materials (quartz, high alumina raw materials or other mineral raw materials) in a certain proportion, which is ground and mixed into mud for billet making. The mud is simply referred to as billet.

[0003] When determining the ratio of various raw materials, it must be ensured that the blank can meet the technical performance required by the electric porcelain production process and the physical performance requirements of the fired porcelain. The technological performance of the billet before firing only depends on the quality and amount of the clay raw material, while the firing process of the billet mainly depends on the flux raw material. [...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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