阅读说明：本技术 一种耐碱玻璃 (Alkali-resistant glass ) 是由 易图华 熊今喜 杨连福 于 2021-10-20 设计创作，主要内容包括：本发明公开了一种耐碱玻璃,一种耐碱玻璃,包括石英砂30-38重量份、锆英砂28-37重量份、二氧化钛0.2-1重量份、碳酸钠5-11重量份、钨酸钙1-3重量份、二氧化碲0.3-1.5重量份,然后经过研磨、预加热、熔融、退火等步骤制成。本发明通过特殊的材料配比以及制作方法有效提高了玻璃的耐碱性,提高了玻璃的适用范围。(The invention discloses alkali-resistant glass, which comprises 30-38 parts by weight of quartz sand, 28-37 parts by weight of zircon sand, 0.2-1 part by weight of titanium dioxide, 5-11 parts by weight of sodium carbonate, 1-3 parts by weight of calcium tungstate and 0.3-1.5 parts by weight of tellurium dioxide, and is prepared by the steps of grinding, preheating, melting, annealing and the like. The alkali resistance of the glass is effectively improved through the special material proportion and the manufacturing method, and the application range of the glass is enlarged.)

1. The alkali-resistant glass is characterized by comprising 30-38 parts by weight of quartz sand, 28-37 parts by weight of zircon sand, 0.2-1 part by weight of titanium dioxide, 5-11 parts by weight of sodium carbonate, 1-3 parts by weight of calcium tungstate and 0.3-1.5 parts by weight of tellurium dioxide.

2. The alkali-resistant glass according to claim 1, comprising 33 parts by weight of quartz sand, 35 parts by weight of zircon sand, 0.3 parts by weight of titanium dioxide, 6 parts by weight of sodium carbonate, 2.5 parts by weight of calcium tungstate, and 0.5 parts by weight of tellurium dioxide.

3. The alkali-resistant glass of claim 1, wherein said alkali-resistant glass is prepared by a method comprising:

step one, mixing materials: quartz sand, zircon sand, titanium dioxide, sodium carbonate, calcium tungstate and tellurium dioxide according to the mass ratio of 30-38: 28-37: 0.2-1: 5-11: 1-3: 0.3-1.5 to obtain a mixture;

step two, putting the mixture into a grinder to grind and then sieving the mixture to obtain a grinding material;

step three, treating the grinding material for 2-3 hours at 600-900 ℃ in an air atmosphere to obtain a preheated material;

step four, heating the preheated material to 1300-1450 ℃, melting for 1-2 hours, and stirring to obtain uniform and clear molten glass;

step five, pouring the molten glass into a mold;

and step six, annealing the glass, namely annealing to 800-950 ℃ at the cooling rate of 15-20 ℃/min, keeping for 1h, then cooling to 300-400 ℃ at the cooling rate of 8-13 ℃/min, keeping for 3h, and naturally cooling to room temperature to obtain the alkali-resistant glass.

4. The alkali-resistant glass of claim 3, wherein in step one, the silica sand, zircon sand, titanium dioxide, sodium carbonate, calcium tungstate and tellurium dioxide are mixed in a mass ratio of 35: 30: 0.3: 6: 2: 0.7 mixing.

5. The alkali-resistant glass according to claim 3, wherein in step two, the millbase is obtained by sieving through a 400 mesh sieve.

6. The alkali-resistant glass of claim 3, wherein in the fourth step, the pre-heat material is heated to 1300-1450 ℃ at a rate of 30 ℃/min.

7. The alkali-resistant glass of claim 3, wherein in the sixth step, the glass is annealed to 900 ℃ at a cooling rate of 18 ℃/min, kept for 1h, then cooled to 350 ℃ at a cooling rate of 10 ℃/min, kept for 3h, and then naturally cooled to room temperature to obtain the alkali-resistant glass.

[ technical field ] A method for producing a semiconductor device

The invention relates to the field of glass, in particular to alkali-resistant glass.

[ background of the invention ]

The main component of the glass is silicon dioxide, which has better tolerance to acid, but the silicate is easy to dissolve and soften in an acoustic field after encountering alkali, so that most of the glass is not alkali-resistant. Leading to many more highly alkaline environments in which glass cannot be used, which greatly affects the range of glass use. Therefore, alkali-resistant glass which has good alkali resistance and can be normally used in an alkali environment is needed to improve the application range of the glass.

[ summary of the invention ]

In order to solve the technical problem, the invention discloses alkali-resistant glass. The alkali resistance of the glass is effectively improved through the special material proportion and the manufacturing method, and the application range of the glass is enlarged.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the alkali-resistant glass comprises 30-38 parts by weight of quartz sand, 28-37 parts by weight of zircon sand, 0.2-1 part by weight of titanium dioxide, 5-11 parts by weight of sodium carbonate, 1-3 parts by weight of calcium tungstate and 0.3-1.5 parts by weight of tellurium dioxide.

The further improvement comprises 33 parts by weight of quartz sand, 35 parts by weight of zircon sand, 0.3 part by weight of titanium dioxide, 6 parts by weight of sodium carbonate, 2.5 parts by weight of calcium tungstate and 0.5 part by weight of tellurium dioxide.

In a further improvement, the preparation method of the alkali-resistant glass comprises the following steps:

step one, mixing materials: quartz sand, zircon sand, titanium dioxide, sodium carbonate, calcium tungstate and tellurium dioxide according to the mass ratio of 30-38: 28-37: 0.2-1: 5-11: 1-3: 0.3-1.5 to obtain a mixture;

step two, putting the mixture into a grinder to grind and then sieving the mixture to obtain a grinding material;

step three, treating the grinding material for 2-3 hours at 600-900 ℃ in an air atmosphere to obtain a preheated material;

step four, heating the preheated material to 1300-1450 ℃, melting for 1-2 hours, and stirring to obtain uniform and clear molten glass;

step five, pouring the molten glass into a mold;

and step six, annealing the glass, namely annealing to 800-950 ℃ at the cooling rate of 15-20 ℃/min, keeping for 1h, then cooling to 300-400 ℃ at the cooling rate of 8-13 ℃/min, keeping for 3h, and naturally cooling to room temperature to obtain the alkali-resistant glass.

In a further improvement, in the first step, the weight ratio of quartz sand, zircon sand, titanium dioxide, sodium carbonate, calcium tungstate and tellurium dioxide is 35: 30: 0.3: 6: 2: 0.7 mixing.

In a further improvement, in the second step, the grinding material is obtained by sieving with a 400-mesh sieve.

In the fourth step, the preheating material is heated to 1300-1450 ℃ at a heating rate of 30 ℃/min.

Further improvement, in the sixth step, annealing is carried out to 900 ℃ at the cooling rate of 18 ℃/min, the annealing is kept for 1h, then, the annealing is carried out to 350 ℃ at the cooling rate of 10 ℃/min, the heat preservation is carried out for 3h, and then, the temperature is naturally reduced to room temperature, so that the alkali-resistant glass is obtained.

The alkali resistance of the glass is effectively improved through the special material proportion and the manufacturing method, and the application range of the glass is enlarged.

[ detailed description ] embodiments

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The preparation method of the alkali-resistant glass comprises the following steps:

step one, mixing materials: quartz sand, zircon sand, titanium dioxide, sodium carbonate, calcium tungstate and tellurium dioxide according to the mass ratio of 30: 28: 0.2: 5: 1: 0.3 mixing to obtain a mixture;

step two, putting the mixture into a grinder to grind, and then screening the mixture through a 400-mesh screen to obtain a grinding material;

step three, treating the grinding material for 3 hours at 600 ℃ in an air atmosphere to obtain a preheating material;

heating the preheated material to 1300 ℃ at a heating rate of 30 ℃/min for melting for 2h, and stirring to obtain uniform and clear molten glass;

step five, pouring the molten glass into a mold;

and step six, annealing the glass, namely annealing to 800 ℃ at a cooling rate of 15 ℃/min, keeping for 1h, then cooling to 300 ℃ at a cooling rate of 8 ℃/min, keeping for 3h, and naturally cooling to room temperature to obtain the alkali-resistant glass.

Example 2

The preparation method of the alkali-resistant glass comprises the following steps:

step one, mixing materials: the material comprises the following components in parts by mass: 37: 1: 11: 3: 1.5 mixing to obtain a mixture;

step two, putting the mixture into a grinder to grind, and then screening the mixture through a 400-mesh screen to obtain a grinding material;

step three, treating the grinding material for 2 hours at 900 ℃ in an air atmosphere to obtain a preheating material;

heating the preheated material at the heating rate of 30 ℃/min to 1450 ℃ for melting for 1h, and stirring to obtain uniform and clear molten glass;

step five, pouring the molten glass into a mold;

and step six, annealing the glass, namely annealing to 950 ℃ at the cooling rate of 20 ℃/min, keeping for 1h, then cooling to 400 ℃ at the cooling rate of 13 ℃/min, keeping for 3h, and naturally cooling to room temperature to obtain the alkali-resistant glass.

Example 3

The preparation method of the alkali-resistant glass comprises the following steps:

step one, mixing materials: the material comprises quartz sand, zircon sand, titanium dioxide, sodium carbonate, calcium tungstate and tellurium dioxide according to the mass ratio of 35: 30: 0.3: 6: 2: 0.7 mixing to obtain a mixture;

step two, putting the mixture into a grinder to grind, and then screening the mixture through a 400-mesh screen to obtain a grinding material;

step three, treating the grinding material for 2.5 hours at 700 ℃ in air atmosphere to obtain a preheating material;

heating the preheated material at a heating rate of 30 ℃/min to 1300-1450 ℃ for melting for 1-2 h, and stirring to obtain uniform and clear molten glass;

step five, pouring the molten glass into a mold;

and step six, annealing the glass, namely annealing to 900 ℃ at the cooling rate of 18 ℃/min, keeping for 1h, then cooling to 350 ℃ at the cooling rate of 10 ℃/min, keeping for 3h, and naturally cooling to room temperature to obtain the alkali-resistant glass.

The results of one, two and three weeks of observation of the lower alkali-resistant glass surface immersed in a 15 wt% sodium hydroxide solution were as follows:

TABLE 1 test results

	Example 1	Example 2	Example 3
				One week	No corrosion phenomenon	No corrosion phenomenon	No corrosion phenomenon
Two weeks	No corrosion phenomenon	Slightly corroded	No corrosion phenomenon
				Three weeks	Slightly corroded	Slightly corroded	No corrosion phenomenon

Therefore, the present invention can obviously prevent the overlooking of the lye, and example 3 is the optimal manufacturing method.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention in any way, and any simple modification, equivalent change and modification made by those skilled in the art according to the technical spirit of the present invention without departing from the technical scope of the present invention are all within the scope of the present invention.