A shaping method suitable for flexible glass drawing

A flexible glass and glass ribbon technology, applied in glass forming, glass forming, glass manufacturing equipment, etc., can solve the problems of warping, low precision of mechanical assembly, uneven temperature in the temperature field, etc., to prevent warping and thickness poor effect

Active Publication Date: 2021-02-23
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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  • A shaping method suitable for flexible glass drawing
  • A shaping method suitable for flexible glass drawing
  • A 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

A sizing method suitable for flexible glass drawing, which belongs to the technical field of flexible glass drawing sizing. The sizing is carried out through a sizing furnace. After the glass ribbon flows out of the platinum bushing, it is thinned by an edge pulling machine and pulled by a traction roller to enter the sizing process. Furnace, the setting furnace includes three layers of symmetrically arranged heating modules, the side of the heating module facing the glass ribbon is provided with a polycrystalline silicon carbide soaking plate, and a cooling module is arranged between the first layer of heating modules and the second layer of heating modules device, the machine head of the edge pulling machine is arranged between the heating modules arranged symmetrically on the first layer, and traction rollers are arranged between the heating modules arranged symmetrically on the second layer and the third layer. 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%.

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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Patent Type & Authority Patents(China)
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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