Panel glass for color picture tube and preparation method thereof

Abstract

The invention discloses panel glass for a color picture tube and a preparation method thereof. The panel glass comprises the following components in percentage by weight: 55.0000-61.0000 percent of silica, 1.0000-5.0000 percent of aluminum oxide, 8.0000-12.0000 percent of strontium oxide, 8.0000-12.0000 percent of barium oxide, 3.0000-8.0000 percent of potassium oxide, 8.0000-15.0000 percent of sodium oxide, 0.0000-3.0000 percent of zirconia, 0.2000-0.5000 percent of antimony trioxide, 0.2000-0.5000 percent of cerium dioxide, 0.1000-0.5000 percent of titanium dioxide, 0.0000-0.5000 percent of zinc oxide, 0.0100-0.0200 percent of nickel protoxide and 0.0010-0.0050 percent of cobaltosic oxide. The preparation method is as follows: firstly drying used quartz sand, weighing raw materials in proportion, mixing evenly, melting and then forming, and finally annealing to obtain the finished product, and has the advantages of low production cost and little production pollution.

Description

technical field [0001] The invention belongs to the technical field of electronic glass preparation, and in particular relates to a screen glass for a color picture tube and a preparation method thereof. Background technique [0002] Most of the screen glass used for color picture tubes in our country is imported from Japan, such as the 5001, 5008, and 9075 materials that have been used. The existing materials not only have high production costs, but also have high melting temperatures. High, high melting failure rate, and some materials also contain a certain amount of fluorine, which increases the environmental pollution of glass bulb production. In recent years, flat-panel TVs have developed rapidly, and the market share of color picture tube TVs has continued to shrink. , the price is also constantly decreasing, which leads to the continuous price reduction of screen glass for color picture tubes, and the price of raw materials for the production of screen glass for colo...

AI Technical Summary

Problems solved by technology

[0002] Most of the screen glass used for color picture tubes in our country is imported from Japan, such as the 5001, 5008, and 9075 materials that have been used. The existing materials not only have high production costs, but also have high melting temperatures. High, high melting failure rate, and some materials also contain a certain amount of fluorine, which increases the environmental pollution of glass bulb production. In recent years, flat-panel TVs have developed rapidly, and the market share of color picture tube TVs has continued to shrink. , the price is also constantly decreasing, which leads to the continuous price reduction of screen glass for color picture tubes, and the price of raw materials for the production of screen glass for color picture tubes is constantly increasing. The existing materials can no longer meet the production needs due to high production costs.