Production process of 3D curved glass panel

A technology of curved glass and production process, applied in glass forming, glass re-molding, glass manufacturing equipment and other directions, can solve the problems of time-consuming and labor-intensive, complex grinding process, etc., to avoid defects, reduce mold printing, avoid The effect of the subsequent polishing process

Inactive Publication Date: 2020-04-14
苏州市灵通玻璃制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, if a single upper mold and lower mold are used to press together, there will be a concave impression under the curved glass, which will cause the subsequent polishing process
In addition, it is easy to cause defects on the surface of the glass body, and there will be complicated grinding processes in the subsequent processing, which is time-consuming and labor-intensive

Method used

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  • Production process of 3D curved glass panel

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Embodiment Construction

[0022] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, and cannot be used to limit the protection scope of the present invention.

[0023] like figure 1 As shown, the present invention provides a production process of a 3D curved glass panel, comprising the following steps:

[0024] Step 1, place the flat glass 3 on the concave mold 1, and then use the frame frame 4 to fix the periphery of the flat glass. Before the flat glass 3 is put into the concave mold, an isolation layer is provided on the upper and lower sides of the flat glass 3, and a protective layer is provided on the outer side of the isolation layer. The isolation layer includes graphite, silica and alumina, and is mixed and stirred by silica sol. The material of the protective layer is the same as that of the flat glass.

[0025] In step 2, the ...

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PUM

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Abstract

The invention discloses a production process of a 3D curved glass panel, and the method comprises the following steps: S01, placing plain glass on a female die, and fixing the periphery of the plain glass by using a frame body frame; s02, heating the female die for softening the plain glass; s03, allowing a driving mechanism to drive a forming block to move downwards along the frame body frame toextrude the plain glass; s04, vacuumizing the female die through a vent hole in the female die to form curved glass; and S05, cooling the curved glass until the curved glass is shaped. According to the production process of the 3D curved glass panel, mold marks appearing on the lower surface of the curved glass in the forming process can be reduced, and the subsequent polishing procedure is avoided.

Description

technical field [0001] The invention relates to a production process of a 3D curved glass panel, and belongs to the technical field of glass manufacturing. Background technique [0002] In the prior art, the 3D hot bending machined glass panel can be divided into four stages: heating, molding, annealing, and cooling. (1) Heating stage: The glass blank is placed in a heat-resistant cemented carbide mold, the heating furnace is filled with nitrogen, and the upper and lower heating plates heat the glass blank and the mold together to the molding temperature. (2) Molding stage: Under the condition that the temperature of the heating furnace is kept constant, the lower mold and the glass blank are fixed, and the upper mold moves downward under the action of the first power device until the mold is closed. Under the action of the upper mold, the viscous glass compresses and fills the entire mold cavity and replicates the shape of the mold cavity. (3) Annealing stage: reduce the ...

Claims

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Application Information

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IPC IPC(8): C03B23/03C03B23/035
CPCC03B23/03C03B23/0307C03B23/0357
Inventor 陆志文
Owner 苏州市灵通玻璃制品有限公司
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