Production technique for bar shaped porcelain insulator used for overhead line system of G-series high-speed train

Abstract

The present invention disclosed a kind of high -speed rail contact network for the production process of stick -shaped porcelain insulator. In the ball milling, the total quality of the raw materials in the ball milling is as follows, and the high aluminum aluminum soil is 30-45 % WT;Yonggaolin 15-20 % WT; Jiangbei clay is 2 to 6 % WT; 3-6 % WT in Kaolin in Guizhou; 1 to 3 % WT in Bi Ji mud; 3 to 5 % WT in Changshi; 0.3 ~ 0.5 % WT of nano alumina powder.The invention has prepared a stick -shaped porcelain insulator for the high -speed rail contact network with excellent mechanical and electrical performance through the selection of the raw material in the formula.; Porcelain inspection, electrical inspection, and glue are high, and the production quality is stable; the product meets the use of 350km/h and above high -speed rail contact network.

Description

technical field [0001] The invention relates to a production process of a rod-shaped porcelain insulator. The rod-shaped porcelain insulator is mainly used in a high-speed rail contact network, especially at a speed greater than 350 km / h, and belongs to the technical field of electric porcelain production and manufacturing. Background technique [0002] With the rapid development of my country's high-speed electrified railways, the vigorous promotion of the "Belt and Road" strategic policy, and the vigorous promotion of my country's high-speed railway equipment to the world, the construction of high-speed railways will usher in a period of rapid growth. By 2020, the mileage of my country's electrified railways will reach 7 More than 10,000 kilometers. As an important device for high-speed railway catenary, rod insulators will be used more and more, and the requirements for their electromechanical performance will also be higher and higher. With the increase of the speed of h...

AI Technical Summary

Problems solved by technology

This process solves the problems of small bending failure load (≤25kN), poor anti-fouling performance, and low product qualification rate of porcelain insulators for general electrified railways.