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Molding system and method for substrate glass warping stress partition control

A technology of partition control and warpage stress, which is applied in glass forming, glass forming, glass manufacturing equipment, etc.

Pending Publication Date: 2021-05-18
IRICO DISPLAY DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem of stress warping of the glass surface under the action of stress in the prior art, the present invention provides a forming system and method for controlling substrate glass warping stress partitioning

Method used

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  • Molding system and method for substrate glass warping stress partition control
  • Molding system and method for substrate glass warping stress partition control
  • Molding system and method for substrate glass warping stress partition control

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Embodiment Construction

[0045] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

[0046] The present invention relates to a forming system for controlling the warping stress of substrate glass in different zones. The purpose is to finely design the forming equipment according to the viscosity-temperature characteristics of the glass, which are the overflow zone in the first zone, the thickness adjustment zone in the second zone, and the fine temperature adjustment in the third zone. Zone 4, stress buffer relaxation zone, zone 5 rapid cooling forming zone, zone 6 annealing zone, zone 7 cutting zone, to achieve seven refined partition control. like figure 1 As shown, in the overflow area of ​​the first zone of the temperature control system, the viscosity of the molten glass from the feeding system is about 10 3.5 Pa.S, the glass has good fluidity at this time. In order to ...

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Abstract

The invention relates to a molding system and method for substrate glass warping stress partition control. The system comprises a soaking air box, a thickness adjusting roller set, a heat insulation layer, a cooling fine adjusting device and a severing clamping roller, which are arranged in a forming furnace body from the tip of an overflow brick in the downward pulling direction of a glass body in sequence, and a cutting knife and a severing device which are arranged below the forming furnace body. By carrying out process adjustment on refined functional partitions of a forming system, a precise temperature field is provided for a glass body in the gradual cooling process, a reasonable cooling gradient of the glass body between a softening point and an annealing point is ensured, buckling deformation of the glass body in the cooling process is effectively ensured, and meanwhile, through a stress relaxation buffer area, the thermal stress of the glass body caused by temperature difference deformation is reduced to the greatest extent.

Description

technical field [0001] The invention relates to a substrate glass manufacturing equipment, in particular to a molding system and method for controlling the warping stress of the substrate glass by partitioning. Background technique [0002] The substrate glass used in the manufacturing fields of general TFT-LCD (Thin Film Transistor Display), PDP (Plasma Display) and other flat panel displays has high requirements on flatness, and any warping or fluctuation of the glass body 10 will directly affect the quality of the panel. Affects the distortion of the panel of the display device. [0003] Warping is a defect in the production process of flat glass, and it is also a technical problem often encountered in the manufacturing process of flat glass. In the production of substrate glass by overflow method, when the molten glass enters the forming area through the overflow device, the edge is rapidly cooled under the action of the edge puller to ensure the forming width of the su...

Claims

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Application Information

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IPC IPC(8): C03B17/06C03B25/12C03B33/02
CPCC03B17/067C03B17/064C03B25/12C03B33/0207
Inventor 李淼胡卫东张志军晁耀定任泳静
Owner IRICO DISPLAY DEVICES
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