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Cone glass for tricolour picture tube and preparation method thereof

A color picture tube and cone glass technology, applied in the field of color picture tube cone glass and its preparation, can solve the problems of high production cost, failure to meet production needs, rising raw material prices, etc., and achieve low production cost, small production pollution, and reduced content Effect

Inactive Publication Date: 2010-07-21
CAIHONG GRP ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the price of cone glass for color picture tubes is constantly decreasing, and the price of raw materials for producing color picture tube cone glass is constantly increasing. The existing materials can no longer meet the production needs due to high production costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A cone glass for a color picture tube, the composition mass percent of which is: 49.40 silicon dioxide, 8.00 lead oxide, 2.00 aluminum oxide, 10.00 strontium oxide, 15.00 barium oxide, 2.00 potassium oxide, 12.00 sodium oxide, 0.10 antimony trioxide , 1.00 calcium oxide and 0.50 magnesium oxide.

[0018] A kind of cone glass for color picture tube, its raw material weight components are: 41.70 parts of quartz sand, 8.10 parts of lead monoxide, 11.60 parts of feldspar, 14.70 parts of strontium carbonate, 19.50 parts of barium carbonate, 0.10 parts of potassium carbonate, 19.90 parts of soda ash, 1.50 parts of potassium nitrate, 0.20 parts of sodium pyroantimonate, 2.30 parts of dolomite and 0.60 parts of limestone.

[0019] A preparation method of cone glass for a color picture tube, comprising the following steps:

[0020] In the first step, put the quartz sand used in a dryer and dry it at 330°C for 1 hour.

[0021] In the second step, the raw materials used are weig...

Embodiment 2

[0027] A cone glass for a color picture tube, the composition mass percent of which is: 48.10 silicon dioxide, 9.60 lead oxide, 2.50 aluminum oxide, 9.30 strontium oxide, 13.60 barium oxide, 2.80 potassium oxide, 11.10 sodium oxide, 0.20 antimony trioxide , 1.70 calcium oxide, 1.00 magnesium oxide and 0.10 lithium oxide.

[0028] A kind of cone glass for color picture tube, its raw material weight components are: 38.70 parts of quartz sand, 9.70 parts of lead monoxide, 10.30 parts of feldspar, 13.70 parts of strontium carbonate, 17.60 parts of barium carbonate, 0.80 parts of potassium carbonate, 18.10 parts of soda ash, 2.10 parts of potassium nitrate, 0.30 parts of sodium pyroantimonate, 4.70 parts of dolomite, 0.60 parts of limestone and 4.00 parts of spodumene.

[0029] A preparation method of cone glass for a color picture tube, comprising the following steps:

[0030] In the first step, place the quartz sand used in a drying oven and dry it at 350°C for 1.5 hours.

[00...

Embodiment 3

[0037] A cone glass for a color picture tube, the composition mass percent of which is: 45.65 silicon dioxide, 11.20 lead oxide, 3.00 aluminum oxide, 8.60 strontium oxide, 12.20 barium oxide, 3.70 potassium oxide, 10.30 sodium oxide, 0.25 antimony trioxide , 2.90 calcium oxide, 2.00 magnesium oxide and 0.20 lithium oxide.

[0038] A kind of cone glass for color picture tube, its raw material weight components are: 34.50 parts of quartz sand, 11.30 parts of lead monoxide, 9.00 parts of feldspar, 12.70 parts of strontium carbonate, 15.80 parts of barium carbonate, 1.70 parts of potassium carbonate, 16.60 parts of soda ash, 2.70 parts of potassium nitrate, 0.40 parts of sodium pyroantimonate, 9.30 parts of dolomite, 0.20 parts of limestone and 8.00 parts of spodumene.

[0039] A preparation method of cone glass for a color picture tube, comprising the following steps:

[0040] In the first step, place the quartz sand used in a drying oven and dry it at a temperature of 340°C for...

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Abstract

The invention relates to a cone glass for a tricolour picture tube, comprising the components with the following mass percent: 42.20-49.40% of silica, 8.00-20.00% of lead oxide, 2.00-5.00% of aluminium oxide, 4.00-10.00% of strontium oxide, 4.00-15.00% of barium oxide, 2.00-8.00% of potassium oxide, 6.00-12.00% of sodium oxide, 0.10-0.50% of antimonous oxide, 1.00-6.00% of calcium oxide, 0.50-4.00% of magnesium oxide and 0.00-0.50% of lithium oxide. The preparation method comprises the following steps: drying quartz sand; weighing raw materials according to the proportion; blending, founding and moulding the raw materials; finally annealing to obtain the finished product. The preparation method has the advantages of low production cost and little pollution to the environment.

Description

technical field [0001] The invention belongs to the technical field of electronic glass preparation, and in particular relates to a cone glass for a color picture tube and a preparation method thereof. Background technique [0002] Most of the existing recipes in our country are imported from Japan, such as the 0138 recipes that have been used. The existing recipes not only have high production costs, but also have high lead content in the recipes. The production process is harmful to the environment. The pollution is very serious. With the rapid development of flat-panel TVs in recent years, the market share of color picture tube TVs has been shrinking and prices have been decreasing. Therefore cause the color picture tube cone glass to be constantly reducing in price, and the raw materials for producing the color picture tube cone glass are constantly increasing in price. The existing material side can no longer meet the production needs because of the high production cos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/105
Inventor 付玉生马志斌吴文超段梓发严养情肖耀锋
Owner CAIHONG GRP ELECTRONICS CO LTD
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