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Shaping method suitable for flexible glass drawing

A technology of flexible glass and glass ribbon, which is applied in glass molding, glass molding, glass manufacturing equipment, etc., can solve problems such as warping, uneven temperature field temperature, and low precision of mechanical assembly, so as to prevent warping and thickness poor effect

Active Publication Date: 2018-07-06
GLASS TECH RES INST OF SHAHE CITY OF HEBEI PROVINCE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Because flexible glass is as thin as paper, the uneven viscosity of the glass liquid during the drawing process, the uneven temperature field temperature, the low precision of mechanical assembly, the unreasonable temperature system, and mechanical vibration will cause defects such as streaks and warping in the glass. It is also an important reason why flexible glass cannot be industrialized

Method used

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  • Shaping method suitable for flexible glass drawing
  • Shaping method suitable for flexible glass drawing
  • Shaping method suitable for flexible glass drawing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Soda-lime-silica glass granules are selected for melting, and the specific composition of the glass is: by weight percentage, SiO 2 72%, Al 2 o 3 1.5%, CaO8%, MgO4%, Na 2 O14.5%. The molten glass flows out through a platinum slit with a width of 2mm.

[0031] The heating modules in the shaping furnace are divided into 3 layers, 6 groups in total, and each group of heating modules is composed of 3 heating modules. 200×200mm. The front end of each group of heating modules is provided with a polycrystalline silicon carbide plate, the distance between the bottom edge of the first polycrystalline silicon carbide plate and the glass ribbon is 12mm, and the distance between the bottom edge of the second and third layer polycrystalline silicon carbide plates and the glass ribbon 20mm. By adjusting the position of the heating module away from the glass ribbon back and forth, the transverse temperature field is made uniform. Control the temperature at the center glass ribb...

Embodiment 2

[0039] Soda-lime-silica glass granules are selected for melting, and the specific composition of the glass is: by weight percentage, SiO 2 72%, Al 2 o 3 1.5%, CaO8%, MgO4%, Na 2 O14.5%. The molten glass flows out through a platinum slit with a width of 2mm.

[0040] The heating modules in the shaping furnace are divided into 3 layers, a total of 6 groups. Each group of heating modules is composed of 5 heating modules. 120×200mm. The front end of each group of heating modules is provided with a polycrystalline silicon carbide plate, the distance between the bottom edge of the first polycrystalline silicon carbide plate and the glass ribbon is 12mm, and the distance between the bottom edge of the second and third layer polycrystalline silicon carbide plates and the glass ribbon 20mm. By adjusting the position of the heating module away from the glass ribbon back and forth, the transverse temperature field is made uniform. The temperature at the center glass ribbon of the ...

Embodiment 3

[0048] Soda-lime-silica glass granules are selected for melting, and the specific composition of the glass is: by weight percentage, SiO 2 72%, Al 2 o 3 1.5%, CaO8%, MgO4%, Na 2 O14.5%. The molten glass flows out through a platinum slit with a width of 2mm.

[0049] The heating modules in the shaping furnace are divided into 3 layers, a total of 6 groups. Each group of heating modules is composed of 5 heating modules. 120×200mm. The front end of each group of heating modules is provided with a polycrystalline silicon carbide plate, the distance between the bottom edge of the first polycrystalline silicon carbide plate and the glass ribbon is 12mm, and the distance between the bottom edge of the second and third layer polycrystalline silicon carbide plates and the glass ribbon 20mm. By adjusting the position of the heating module away from the glass ribbon back and forth, the transverse temperature field is made uniform. The temperature at the center glass ribbon of the ...

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Abstract

The invention relates to a shaping method suitable for flexible glass drawing and belongs to the technical field of flexible glass drawing and shaping. Shaping is conducted by a shaping furnace; a glass tape flows out of a platinum leakage plate mouth, is stretched thinly by an edge drawing machine, is pulled by a pull roller and enters the shaping furnace; the shaping furnace comprises three layers of heating modules which are arranged symmetrically; a polycrystal silicon carbide soaking plate is arranged on one side, facing towards the glass tape, of each heating module; a cooling device isarranged between the first layer of heating module and the second layer of heating module; the machine head of the edge drawing machine is arranged between the first layer of heating modules which arearranged symmetrically; the pull roller is arranged between the second layer of heating modules which are arranged symmetrically; and the pull roller is arranged between the third layer of heating modules which are arranged symmetrically. The shaping method provided by the invention is stable in shaping effect; and in the drawn flexible glass, the thickness is 0.04 mm, the thickness different ineffective size is less than or equal to 10 um, and the warping degree is less than or equal to 0.1 percent.

Description

technical field [0001] The invention belongs to the technical field of drawing and shaping of flexible glass, and relates to a shaping method for drawing flexible glass, in particular to a shaping method for drawing flexible glass with a shaping furnace. The shaping method of the invention has a stable shaping effect, the thickness of the drawn flexible glass is as thin as 0.04 mm, the thickness difference within the effective size is ≤ 10 μm, and the warpage is ≤ 0.1%. Background technique [0002] Flexible glass refers to ultra-thin glass with a thickness of ≤0.1mm that can realize the "roll-to-roll" process. Flexible glass can be bent while having glass's hardness, transparency, heat resistance, electrical insulation, air impermeability, and stable mechanical and chemical properties in oxidative and light environments. The high temperature resistance of flexible glass can meet the requirements of high temperature treatment for some optoelectronic devices. Its outstanding...

Claims

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Application Information

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IPC IPC(8): C03B17/06
CPCC03B17/067C03B17/068
Inventor 郭振强袁坚程金树侯延升白广星王瑞璞
Owner GLASS TECH RES INST OF SHAHE CITY OF HEBEI PROVINCE
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