Flexible glass and its manufacturing method

Abstract

The present invention discloses a flexible glass and a manufacturing method thereof. The raw materials used in the flexible glass are, in weight ratio, 60.04-63.01 parts by weight of silica, 16.7-21.5 parts by weight of alumina, 12.93-19.85 parts by weight of boron oxide, 2.43-14.19 parts by weight of calcium carbonate, 0.16-2.07 parts by weight of magnesium oxide, 0.5-2.74 parts by weight of strontium carbonate, and 0-4.16 parts by weight of barium nitrate. The manufacturing method includes step 1 of feeding the raw materials into a mixer and uniformly mixing them to make a mix, step 2 of putting the molten glass into a platinum supply channel to clarify it and flow it into a drawing tunnel, step 3 of drawing the molten glass into a growing glass tube by a drawing machine in the drawing tunnel with a polar atmosphere inside, step 4 of cutting the glass pieces using a laser cutter in the horizontal and vertical directions, and step 5 of manufacturing a flexible glass product.

Description

[Technical Field]

[0001] The present invention is in the field of optoelectronic displays, and more particularly relates to flexible glass and methods for making same. [Background technology]

[0002] Flexible glass is a glass material with a thickness of 0.1 mm or less that has excellent bending toughness, and the thinner the thickness, the smaller the critical bending radius. In addition to its good flexibility, flexible glass also maintains the inherent properties of glass, such as high hardness, high transparency, high thermal stability, and chemical resistance, and is widely used in fields such as optoelectronic displays, lighting, solar energy, and aerospace.

[0003] According to the current state of research both at home and abroad, the manufacturing methods of flexible glass can be divided into primary forming and secondary forming according to the number of steps, the primary forming includes the overflow downdraw method, the float method and the slit downdraw method, and the secondary forming includes the chemical thinning method and the redraw method.

[0004] The overflow downdraw process, invented by Corning in the United States in 1967, thins glass using its own weight. Since both sides of the glass do not come into contact with external materials during the forming and annealing process, the finished product has a smooth, flat surface, eliminating the need for subsequent processing such as polishing. Furthermore, both sides of the glass are controlled by a pair of rollers, allowing for simultaneous heating and cooling, making it suitable for the production of flexible glass, which requires high surface quality. However, this process requires the molten glass to meet the tip of the overflow brick to form the base of the sheet, which creates a thick base, making thinning more difficult.

[0005] In the late 1950s, the British company Pilkington Glass announced to the world that it had successfully developed the glass float forming process. This method involves transporting molten glass into a bath of liquid tin, where its low density allows it to float on the surface of the molten tin and form. This process allows for large production capacities and scales, resulting in a wide variety of product specifications. Producing flexible glass using this method requires the addition of multiple pairs of edge rollers and pulling rollers to overcome the effects of gravity and surface tension of the molten glass and reduce its thickness. Furthermore, because the glass ribbon floats on the surface of the molten tin, a tin-impregnated layer forms on the underside, requiring further processing.

[0006] At the end of the 20th century, the German company Schott developed slit downdraw technology, and this process is currently used to produce flexible glass products with thicknesses of 0.03mm to 0.1mm. The slit downdraw method involves introducing homogeneous molten glass into a uniformly heated platinum-rhodium reservoir, causing it to flow through a slit in a platinum leak plate, and then pulling it with edge rollers and pulling rollers. This method is suitable for producing flexible glass with low viscosity, and requires a small site and short construction period. However, the surface flatness of the product and production stability are easily affected by the slit shape.

[0007] The redraw process involves heating raw glass above its softening point, transforming it into a viscoelastic material with a certain degree of fluidity. This viscous state is then stretched and thinned by applying a pulling force, producing flexible glass with a thickness of less than 100 μm. The redraw process offers advantages such as low investment in equipment and a small production footprint. Continuous input of raw glass enables continuous production of flexible glass. Research has shown that, due to the effects of surface tension, the raw glass undergoes a large lateral contraction force during the stretching and thinning process, resulting in a rapid contraction of the sheet width after stretching. The resulting flexible glass sheet width is less than 30% of the original sheet width, making it difficult to produce large flexible glass. The thickness difference can reach 10 μm to 15 μm, and the surface roughness is greater than 0.110 μm, resulting in poor surface quality, making it unsuitable for use in optoelectronic displays.

[0008] Chemical thinning is a method of etching the glass surface using an acid solution, changing the structure of the glass surface and reducing the thickness of the glass. However, the glass is prone to breaking during the subsequent polishing process, resulting in a low yield.

[0009] As described above, flexible glass produced by conventional techniques has difficulty meeting the demands for higher resolution displays. Summary of the Invention [Problem to be solved by the invention]

[0010] During the stretching and thinning process, due to the influence of surface tension, the original glass sheet is subjected to a large lateral contraction force, causing the sheet width to shrink rapidly after stretching. As a result, the width of the produced flexible glass sheet is less than 30% of the width of the original sheet, making it difficult to produce large flexible glass. The thickness difference reaches 10μm to 15μm, the surface roughness is greater than 0.110μm, and the surface quality is poor, making it difficult to use in the field of optoelectronic displays.

[0011] Chemical thinning is a method of etching the glass surface using an acid solution, changing the structure of the glass surface and reducing the thickness of the glass. However, the glass is prone to breaking during the subsequent polishing process, resulting in a low yield.

[0012] In order to solve the problems existing in the prior art, the present invention provides a flexible glass and a manufacturing method thereof to solve the above problems. [Means for solving the problem]

[0013] To achieve the above object, the present invention provides, as a technical solution, flexible glass using raw materials in the following weight ratios: silica 60.04 to 63.01 parts by weight, alumina 16.7 to 21.5 parts by weight, boron oxide 12.93 to 19.85 parts by weight, calcium carbonate 2.43 to 14.19 parts by weight, magnesium oxide 0.16 to 2.07 parts by weight, strontium carbonate 0.5 to 2.74 parts by weight, and barium nitrate 0 to 4.16 parts by weight.

[0014] Preferably, the strain point temperature Ts of the flexible glass is in the range of 670 to 739°C.

[0015] Preferably, the Young's modulus of the flexible glass is in the range of 70 to 83 GPa.

[0016] Preferably, the density of the flexible glass is in the range of 2.38 to 2.43 g / cm 3 is.

[0017] A method for manufacturing flexible glass, comprising: Step 1: adding raw materials, in weight ratios, 60.04 to 63.01 parts by weight of silica, 16.7 to 21.5 parts by weight of alumina, 12.93 to 19.85 parts by weight of boron oxide, 2.43 to 14.19 parts by weight of calcium carbonate, 0.16 to 2.07 parts by weight of magnesium oxide, 0.5 to 2.74 parts by weight of strontium carbonate, and 0 to 4.16 parts by weight of barium nitrate into a mixer and mixing them uniformly to form a mix; Step 2: Add the mix from step 1 to the glass furnace through a feeder, heat it to melt the glass, and then the molten glass enters the platinum feed channel for fining and flows into the drawing tunnel. Step 3: drawing the molten glass into a long glass tube using a drawing machine in a drawing tunnel with a polar atmosphere inside; Step 4: Cutting the glass tube horizontally and vertically according to specifications using a laser cutter to form glass pieces; and step 5 of inspecting the glass pieces and then producing a flexible glass product.

[0018] Preferably, in step 2, the glass melting temperature is in the range of 1550 to 1600°C.

[0019] Preferably, in step 2, the flexible glass fining agent is tin oxide.

[0020] Preferably, in step 2, an electric heating system and a natural gas combustion system are used for glass melting.

[0021] Preferably, in step 3, the polar atmosphere is water vapor.

[0022] Preferably, in step 3, the thickness of the long glass tube is less than 0.1 mm. [Effects of the Invention]

[0023] Compared with the prior art, the present invention has the following beneficial technical effects:

[0024] The present invention provides a flexible glass having a high strain point temperature, a high Young's modulus, and a low density, which meets the requirements for higher resolution displays. The present invention also provides a method for producing flexible glass that uses a polar atmosphere (such as water vapor) in a drawing tunnel to reduce the surface tension of molten glass, thereby reducing the difficulty of drawing flexible glass with a thickness of less than 0.1 mm. Furthermore, the stronger the polarity of the atmospheric medium, the greater the orienting force, which reduces the surface tension of the molten glass and prevents the continued decomposition of water in the molten glass, which would otherwise cause oxygen or hydrogen bubbles to form, thereby reducing bubble defects inside the glass. DETAILED DESCRIPTION OF THE INVENTION

[0025] The present invention will now be described in more detail with reference to specific examples, which are intended to illustrate but not limit the present invention. Example 1

[0026] In the flexible glass of the present invention, the raw materials are, by weight, 60.04 parts by weight of silica, 20.07 parts by weight of alumina, 18.68 parts by weight of boron oxide, 13.4 parts by weight of calcium carbonate, 0.78 parts by weight of magnesium oxide, 1.63 parts by weight of strontium carbonate, 0.29 parts by weight of barium nitrate, and 0.12 parts by weight of tin oxide. The flexible glass manufacturing method includes a computer system, controls for electronic scales, mixers, feeders, glass furnaces, platinum feed channels, towing and drawing machines, drawing tunnels, laser automatic detectors, and laser cutters. The specific manufacturing process is as follows. a. Material blending: The raw materials were weighed according to the blending ratio in this example, put into a mixer, and mixed uniformly. b. Melting and fining: The mixture was fed into the glass furnace by the feeder, and the glass was melted by electrical heating and natural gas combustion. The melting temperature was automatically controlled at 1550°C, and then the mixture was fed into the platinum feed channel for fining and then flowed into the drawing tunnel. c. Forming: The molten glass was drawn into a long glass tube with a thickness of less than 0.1 mm by a drawing machine in a drawing tunnel with a polar atmosphere inside. The polar atmosphere can be ammonia gas, HCl, SO2, or water vapor used in this example. d. Precision cutting: The glass was cut horizontally and vertically according to specifications using a laser cutter. e, inspected and packaged, and manufactured flexible glass products. The strain point temperature Ts of the flexible glass produced by this method is 723°C. The Young's modulus of the flexible glass produced by this method is 79 GPa, The density of the flexible glass produced by this method is 2.39 g / cm 3 is. Example 2

[0027] The raw materials were, in weight ratio, 62.07 parts by weight of silica, 21.5 parts by weight of alumina, 13.58 parts by weight of boron oxide, 13.45 parts by weight of calcium carbonate, 0.16 parts by weight of magnesium oxide, 1.63 parts by weight of strontium carbonate, 0.29 parts by weight of barium nitrate, and 0.12 parts by weight of tin oxide. The flexible glass manufacturing method includes a computer system, controls for electronic scales, mixers, feeders, glass furnaces, platinum feed channels, towing and drawing machines, drawing tunnels, laser automatic detectors, and laser cutters. The specific manufacturing process is as follows. a. Material blending: The raw materials were weighed according to the blending ratio in this example, put into a mixer, and mixed uniformly. b. Melting and fining: The mix was fed into the glass furnace by the feeder, and the glass was melted by electrical heating and natural gas combustion. The melting temperature was automatically controlled at 1600°C, and then the mixture was fed into the platinum feed channel for fining and then flowed into the drawing tunnel. c. Forming: In a drawing tunnel with a polar atmosphere inside, the molten glass was drawn by a drawing machine into a long glass tube with a thickness of less than 0.1 mm. d. Precision cutting: The glass was cut horizontally and vertically according to specifications using a laser cutter. e, inspected and packaged, and manufactured flexible glass products. The strain point temperature Ts of the flexible glass produced by this method is 739°C. The Young's modulus of the flexible glass produced by this method is 83 GPa. The density of the flexible glass produced by this method is 2.38 g / cm 3 is. Example 3

[0028] The raw materials were, in weight ratio, 62.08 parts by weight of silica, 20.18 parts by weight of alumina, 12.93 parts by weight of boron oxide, 11.76 parts by weight of calcium carbonate, 0.8 parts by weight of magnesium oxide, 1.16 parts by weight of strontium carbonate, 3.73 parts by weight of barium nitrate, and 0.12 parts by weight of tin oxide. The flexible glass manufacturing method includes a computer system, controls for electronic scales, mixers, feeders, glass furnaces, platinum feed channels, towing and drawing machines, drawing tunnels, laser automatic detectors, and laser cutters. The specific manufacturing process is as follows. a. Material blending: The raw materials were weighed according to the blending ratio in this example, put into a mixer, and mixed uniformly. b. Melting and fining: The mix was fed into the glass furnace by the feeder, and the glass was melted by electrical heating and natural gas combustion. The melting temperature was automatically controlled at 1560°C, and then the mixture was fed into the platinum feed channel for fining and then flowed into the drawing tunnel. c. Forming: In a drawing tunnel with a polar atmosphere inside, the molten glass was drawn by a drawing machine into a long glass tube with a thickness of less than 0.1 mm. d. Precision cutting: The glass was cut horizontally and vertically according to specifications using a laser cutter. e, inspected and packaged, and manufactured flexible glass products. The strain point temperature Ts of the flexible glass produced by this method is 729°C. The Young's modulus of the flexible glass produced by this method is 82 GPa. The density of the flexible glass produced by this method is 2.4 g / cm 3 is. Example 4

[0029] The raw materials were, in weight ratio, 62.63 parts by weight of silica, 17.37 parts by weight of alumina, 18.93 parts by weight of boron oxide, 13.58 parts by weight of calcium carbonate, 1.44 parts by weight of magnesium oxide, 0.5 parts by weight of strontium carbonate, 0.29 parts by weight of barium nitrate, and 0.12 parts by weight of tin oxide. The flexible glass manufacturing method includes a computer system, controls for electronic scales, mixers, feeders, glass furnaces, platinum feed channels, towing and drawing machines, drawing tunnels, laser automatic detectors, and laser cutters. The specific manufacturing process is as follows. a. Material blending: The raw materials were weighed according to the blending ratio in this example, put into a mixer, and mixed uniformly. b. Melting and fining: The mix was fed into the glass furnace by the feeder, and the glass was melted by electrical heating and natural gas combustion. The melting temperature was automatically controlled at 1570°C, and then the mixture was fed into the platinum feed channel for fining and then flowed into the drawing tunnel. c. Forming: In a drawing tunnel with a polar atmosphere inside, the molten glass was drawn by a drawing machine into a long glass tube with a thickness of less than 0.1 mm. d. Precision cutting: The glass was cut horizontally and vertically according to specifications using a laser cutter. e, inspected and packaged, and manufactured flexible glass products. The strain point temperature Ts of the flexible glass produced by this method is 694°C. The Young's modulus of the flexible glass produced by this method is 81 GPa. The density of the flexible glass produced by this method is 2.38 g / cm 3 is. Example 5

[0030] The raw materials were, in weight ratio, 61.65 parts by weight of silica, 17.09 parts by weight of alumina, 18.64 parts by weight of boron oxide, 13.36 parts by weight of calcium carbonate, 1.42 parts by weight of magnesium oxide, 2.74 parts by weight of strontium carbonate, 0.29 parts by weight of barium nitrate, and 0.12 parts by weight of tin oxide. The flexible glass manufacturing method includes a computer system, controls for electronic scales, mixers, feeders, glass furnaces, platinum feed channels, towing and drawing machines, drawing tunnels, laser automatic detectors, and laser cutters. The specific manufacturing process is as follows. a. Material blending: The raw materials were weighed according to the blending ratio in this example, put into a mixer, and mixed uniformly. b. Melting and fining: The mix was added to the glass furnace by the feeder, and the glass was melted by electrical heating and natural gas combustion. The melting temperature was automatically controlled at 1580°C, and then the mixture was fed into the platinum feed channel for fining and then flowed into the drawing tunnel. c. Forming: In a drawing tunnel with a polar atmosphere inside, the molten glass was drawn by a drawing machine into a long glass tube with a thickness of less than 0.1 mm. d. Precision cutting: The glass was cut horizontally and vertically according to specifications using a laser cutter. e, inspected and packaged, and manufactured flexible glass products. The strain point temperature Ts of the flexible glass produced by this method is 679°C. The Young's modulus of the flexible glass produced by this method is 74 GPa, The density of the flexible glass produced by this method is 2.42 g / cm 3 is. Example 6

[0031] The raw materials were, in weight ratio, 62.28 parts by weight of silica, 16.99 parts by weight of alumina, 18.52 parts by weight of boron oxide, 11.77 parts by weight of calcium carbonate, 1.37 parts by weight of magnesium oxide, 1.61 parts by weight of strontium carbonate, 4.16 parts by weight of barium nitrate, and 0.12 parts by weight of tin oxide. The flexible glass manufacturing method includes a computer system, controls for electronic scales, mixers, feeders, glass furnaces, platinum feed channels, towing and drawing machines, drawing tunnels, laser automatic detectors, and laser cutters. The specific manufacturing process is as follows. a. Material blending: The raw materials were weighed according to the blending ratio in this example, put into a mixer, and mixed uniformly. b. Melting and fining: The mix was fed into the glass furnace by the feeder, and the glass was melted by electrical heating and natural gas combustion. The melting temperature was automatically controlled at 1590°C, and then the mixture was fed into the platinum feed channel for fining and then flowed into the drawing tunnel. c. Forming: In a drawing tunnel with a polar atmosphere inside, the molten glass was drawn by a drawing machine into a long glass tube with a thickness of less than 0.1 mm. d. Precision cutting: The glass was cut horizontally and vertically according to specifications using a laser cutter. e, inspected and packaged, and manufactured flexible glass products. The strain point temperature Ts of the flexible glass produced by this method is 688°C. The Young's modulus of the flexible glass produced by this method is 76 GPa, The density of the flexible glass produced by this method is 2.43 g / cm 3 is. Example 7

[0032] The raw materials were, in weight ratio, 61.9 parts by weight of silica, 18.72 parts by weight of alumina, 15.87 parts by weight of boron oxide, 14.19 parts by weight of calcium carbonate, 1.42 parts by weight of magnesium oxide, 1.63 parts by weight of strontium carbonate, 0.29 parts by weight of barium nitrate, and 0.12 parts by weight of tin oxide. The flexible glass manufacturing method includes a computer system, controls for electronic scales, mixers, feeders, glass furnaces, platinum feed channels, towing and drawing machines, drawing tunnels, laser automatic detectors, and laser cutters. The specific manufacturing process is as follows. a. Material blending: The raw materials were weighed according to the blending ratio in this example, put into a mixer, and mixed uniformly. b. Melting and fining: The mixture was fed into the glass furnace by the feeder, and the glass was melted by electrical heating and natural gas combustion. The melting temperature was automatically controlled at 1550°C, and then the mixture was fed into the platinum feed channel for fining and then flowed into the drawing tunnel. c. Forming: In a drawing tunnel with a polar atmosphere inside, the molten glass was drawn by a drawing machine into a long glass tube with a thickness of less than 0.1 mm. d. Precision cutting: The glass was cut horizontally and vertically according to specifications using a laser cutter. e, inspected and packaged, and manufactured flexible glass products. The strain point temperature Ts of the flexible glass produced by this method is 714°C. The Young's modulus of the flexible glass produced by this method is 77 GPa, The density of the flexible glass produced by this method is 2.4 g / cm 3 is. Example 8

[0033] The raw materials were, in weight ratio, 63.01 parts by weight of silica, 17.04 parts by weight of alumina, 19.85 parts by weight of boron oxide, 2.43 parts by weight of calcium carbonate, 1.42 parts by weight of magnesium oxide, 1.81 parts by weight of strontium carbonate, 0.29 parts by weight of barium nitrate, and 0.12 parts by weight of tin oxide. The flexible glass manufacturing method includes a computer system, controls for electronic scales, mixers, feeders, glass furnaces, platinum feed channels, towing and drawing machines, drawing tunnels, laser automatic detectors, and laser cutters. The specific manufacturing process is as follows. a. Material blending: The raw materials were weighed according to the blending ratio in this example, put into a mixer, and mixed uniformly. b. Melting and fining: The mix was fed into the glass furnace by the feeder, and the glass was melted by electrical heating and natural gas combustion. The melting temperature was automatically controlled at 1600°C, and then the mixture was fed into the platinum feed channel for fining and then flowed into the drawing tunnel. c. Forming: In a drawing tunnel with a polar atmosphere inside, the molten glass was drawn by a drawing machine into a long glass tube with a thickness of less than 0.1 mm. d. Precision cutting: The glass was cut horizontally and vertically according to specifications using a laser cutter. e, inspected and packaged, and manufactured flexible glass products. The strain point temperature Ts of the flexible glass produced by this method is 683°C. The Young's modulus of the flexible glass produced by this method is 72 GPa. The density of the flexible glass produced by this method is 2.4 g / cm 3 is. Example 9

[0034] The raw materials were, in weight ratio, 62.89 parts by weight of silica, 16.7 parts by weight of aluminum, 19.02 parts by weight of boron oxide, 12.01 parts by weight of calcium carbonate, 2.07 parts by weight of magnesium oxide, 1.64 parts by weight of strontium carbonate, and 0.12 parts by weight of tin oxide. The flexible glass manufacturing method includes a computer system, controls for electronic scales, mixers, feeders, glass furnaces, platinum feed channels, towing and drawing machines, drawing tunnels, laser automatic detectors, and laser cutters. The specific manufacturing process is as follows. a. Material blending: The raw materials were weighed according to the blending ratio in this example, put into a mixer, and mixed uniformly. b. Melting and fining: The mixture was fed into the glass furnace by the feeder, and the glass was melted by electrical heating and natural gas combustion. The melting temperature was automatically controlled at 1550°C, and then the mixture was fed into the platinum feed channel for fining and then flowed into the drawing tunnel. c. Forming: In a drawing tunnel with a polar atmosphere inside, the molten glass was drawn by a drawing machine into a long glass tube with a thickness of less than 0.1 mm. d. Precision cutting: The glass was cut horizontally and vertically according to specifications using a laser cutter. e, inspected and packaged, and manufactured flexible glass products. The strain point temperature Ts of the flexible glass produced by this method is 686°C. The Young's modulus of the flexible glass produced by this method is 71 GPa. The density of the flexible glass produced by this method is 2.39 g / cm 3 is. Example 10

[0035] The raw materials were, in weight ratio, 62.08 parts by weight of silica, 17.21 parts by weight of alumina, 19.73 parts by weight of boron oxide, 12.88 parts by weight of calcium carbonate, 1.35 parts by weight of magnesium oxide, 1.56 parts by weight of strontium carbonate, 0.27 parts by weight of barium nitrate, and 0.12 parts by weight of tin oxide. The flexible glass manufacturing method includes a computer system, controls for electronic scales, mixers, feeders, glass furnaces, platinum feed channels, towing and drawing machines, drawing tunnels, laser automatic detectors, and laser cutters. The specific manufacturing process is as follows. a. Material blending: The raw materials were weighed according to the blending ratio in this example, put into a mixer, and mixed uniformly. b. Melting and fining: The mix was fed into the glass furnace by the feeder, and the glass was melted by electrical heating and natural gas combustion. The melting temperature was automatically controlled at 1600°C, and then the mixture was fed into the platinum feed channel for fining and then flowed into the drawing tunnel. c. Forming: In a drawing tunnel with a polar atmosphere inside, the molten glass was drawn by a drawing machine into a long glass tube with a thickness of less than 0.1 mm. d. Precision cutting: The glass was cut horizontally and vertically according to specifications using a laser cutter. e, inspected and packaged, and manufactured flexible glass products. The strain point temperature Ts of the flexible glass produced by this method is 670°C. The Young's modulus of the flexible glass produced by this method is 70 GPa. The density of the flexible glass produced by this method is 2.39 g / cm 3 is.

Claims

1. A method for manufacturing flexible glass, comprising: The raw materials are, by weight, 60.04 parts by weight of silica, 20.07 parts by weight of alumina, 18.68 parts by weight of boron oxide, 13.4 parts by weight of calcium carbonate, 0.78 parts by weight of magnesium oxide, 1.63 parts by weight of strontium carbonate, 0.29 parts by weight of barium nitrate, and 0.12 parts by weight of tin oxide; or 62.07 parts by weight of silica, 21.5 parts by weight of alumina, 13.58 parts by weight of boron oxide, 13.45 parts by weight of calcium carbonate, 0.16 parts by weight of magnesium oxide, 1.63 parts by weight of strontium carbonate, 0.29 parts by weight of barium nitrate, and 0.12 parts by weight of tin oxide; or 62.08 parts by weight of silica, 20.18 parts by weight of alumina, 12.93 parts by weight of boron oxide, 11.76 parts by weight of calcium carbonate, 0.8 parts by weight of magnesium oxide, 1.16 parts by weight of strontium carbonate, 3.73 parts by weight of barium nitrate, and 0.12 parts by weight of tin oxide, or 62.63 parts by weight of silica, 17.37 parts by weight of alumina, 18.93 parts by weight of boron oxide, 13.58 parts by weight of calcium carbonate, 1.44 parts by weight of magnesium oxide, 0.5 parts by weight of strontium carbonate, 0.29 parts by weight of barium nitrate, and 0.12 parts by weight of tin oxide, or 61.65 parts by weight of silica, alumina 17.09 parts by weight of lumina, 18.64 parts by weight of boron oxide, 13.36 parts by weight of calcium carbonate, 1.42 parts by weight of magnesium oxide, 2.74 parts by weight of strontium carbonate, 0.29 parts by weight of barium nitrate, and 0.12 parts by weight of tin oxide; or 62.28 parts by weight of silica, 16.99 parts by weight of alumina, 18.52 parts by weight of boron oxide, 11.77 parts by weight of calcium carbonate, 1.37 parts by weight of magnesium oxide, 1.61 parts by weight of strontium carbonate, 4.16 parts by weight of barium nitrate, and 0.12 parts by weight of tin oxide; or 61.9 parts by weight of silica, 18.72 parts by weight of alumina, 15.87 parts by weight of boron oxide, 14.19 parts by weight of calcium carbonate, 1.42 parts by weight of magnesium oxide, 1.63 parts by weight of strontium carbonate, 0.29 parts by weight of barium nitrate, and 0.12 parts by weight of tin oxide, or 63.01 parts by weight of silica, 17.04 parts by weight of alumina, 19.85 parts by weight of boron oxide, 2.43 parts by weight of calcium carbonate, 1.42 parts by weight of magnesium oxide, 1.81 parts by weight of strontium carbonate, 0.29 parts by weight of barium nitrate, and 0.12 parts by weight of tin oxide, or 62.89 parts by weight of silica, 16.7 parts by weight of aluminum, and 19.02 parts by weight of boron oxide,Step 1: Adding 12.01 parts by weight of calcium carbonate, 2.07 parts by weight of magnesium oxide, 1.64 parts by weight of strontium carbonate, and 0.12 parts by weight of tin oxide, or 62.08 parts by weight of silica, 17.21 parts by weight of alumina, 19.73 parts by weight of boron oxide, 12.88 parts by weight of calcium carbonate, 1.35 parts by weight of magnesium oxide, 1.56 parts by weight of strontium carbonate, 0.27 parts by weight of barium nitrate, and 0.12 parts by weight of tin oxide into a mixer and mixing them uniformly to form a mix; Step 2: adding the mix from step 1 to the glass furnace through a feeder, heating to melt the glass, and allowing the molten glass to enter a platinum feed channel for fining and flow into a drawing tunnel; Step 3: drawing the molten glass into a long glass tube using a drawing machine in a drawing tunnel with a polar atmosphere inside; Step 4: Cutting the glass tube horizontally and vertically according to specifications using a laser cutter to form glass pieces; and step 5. after inspecting the glass piece, producing a flexible glass product.

2. 2. The method for manufacturing flexible glass according to claim 1, wherein in step 2, the glass melting temperature ranges from 1550 to 1600°C.

3. 2. The method for producing flexible glass according to claim 1, wherein in step 2, the fining agent for the flexible glass is tin oxide.

4. 2. The method for manufacturing flexible glass according to claim 1, wherein in step 2, an electric heating method and a natural gas combustion method are used for melting the glass.

5. 2. The method for manufacturing flexible glass according to claim 1, wherein in step 3, the polar atmosphere is water vapor.

6. 2. The method for manufacturing flexible glass according to claim 1, wherein in step 3, the thickness of the long glass tube is less than 0.1 mm.