Manufacturing method of hot bent 3D (Three Dimensional) glass white sheet

Abstract

The invention relates to a manufacturing method of a hot bent 3D (Three Dimensional) glass white sheet. The manufacturing method comprises the following steps: (1) cutting a material: cutting a glass white sheet material into a plurality of small glass white sheets with proper sizes; (2) finely engraving: putting the small glass white sheets into a CNC (Computer Numerical Control) fine engraving machine, and punching and grinding edges; (3) cleaning: carrying out cleaning treatment on the glass white sheet by utilizing a glass cleaning machine; (4) carrying out ultrasonic treatment: washing surface residual waste dreg on the surface of the glass white sheet by utilizing an ultrasonic washing machine; (5) hot bending: putting the glass white sheet into a hot bending mold and hotly bending, machining and molding the glass white sheet into a 3D curve surface; (6) tempering: putting the hotly bent glass white sheet into a tempering frame; conveying the tempering frame into a tempering furnace and raising the temperature to 380 DEG C-420 DEG C, wherein the heating time is 4h-8h and the hardness reaches 7H; (7) carrying out plasma spraying: putting the glass white sheet into a fingerprint oil spraying machine and spraying fingerprint oil on a surface through plasmas; baking at a temperature of 140 DEG C-160 DEG C for 25-30 minutes until the fingerprint oil is dried; (8) fitting: fitting release films on upper and lower surfaces of the glass white sheet; and (9) packaging.

Description

technical field [0001] The invention relates to a hot-bent 3D glass white sheet, in particular to a method for manufacturing a hot-bent 3D glass white sheet. Background technique [0002] 3D white glass, also known as 3D curved glass, is often used for screen protection of smartphones, tablet computers, wearable devices, dashboards and industrial computers. There are two main processing technologies for the current 3D glass white film: one is to learn from the processing technology of traditional glass optical lens or glass eyeglass lens, and use CNC numerical control machine tools to process it completely by mechanical cutting and forming. The production efficiency is mainly affected by the 3D glass white film. The radius of curvature and the height of the product are affected; the other is to learn from the processing technology similar to the color crystal glass hot-bending forming. After cutting and blanking the CNC machine tool according to the initial processing size, ...

AI Technical Summary

Problems solved by technology

[0003] During the production of the above two processing technologies, it was found that the 3D glass white sheet produced had a large curvature error, low processing accuracy, rough surface, low pass rate, slow production speed, and high processing cost, which could not meet the needs of actual use.