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A glass processing method and ultra-thin flexible glass

ultra thin glass (UTG) inherently has higher performance indicators in terms of surface flatness, scratch resistance, temperature resistance, impact protection of display devices, etc. the glass has good optical properties, strong environmental stability, high surface hardness, scratch resistance and high temperature resistance. The advantage of glass lies in its high surface hardness. In addition, its material has good self-healing ability. After long-term repeated bending, it can still restore the original flatness, and there is no problem of fatigue of membrane materials. Ultra thin flexible glass solves the problems of creases and scratches, and its light transmittance is also higher than CPI. It is the best choice for the protective panel of folding screen and flexible display screen. Ultra thin flexible glass has become an irresistible trend to replace CPI as the cover material of folding screen. Qibin group disclosed a glass processing method and a patent for ultra-thin flexible glass (patent Publication No.: CN a, not yet authorized) on October 20, 2020. Through this glass processing method, ultra-thin flexible glass can be obtained. The glass plus our working method in developing this set of software includes the following steps: selecting several glass substrates, stacking the glass substrates, and setting an adhesive layer between two adjacent glass substrates, Forming massive laminated vitreous; Then the shape is machined to get the formed part; Then, in order to meet the demand from the automobile 1, the slicing is carried out to obtain the formed glass; Finally, the finished glass is obtained by chemical strengthening

further, a protective layer is arranged on both the upper surface and the lower surface of the laminated glass body to obtain the workpiece to be processed; The shape of the workpiece to be machined is machined to obtain the arbor analysis finger. Further, the chemical strengthening includes: acid etching strengthening the edges of the formed glass, and/or ion exchange strengthening the formed glass. Further, the specific step of acid etching and strengthening the edge of the formed glass comprises: coating the edge of the formed glass with a strengthening liquid; The reinforcing liquid is one of hydrofluoric acid, mixed acid of hydrofluoric acid and hydrochloric acid, or mixed acid of hydrofluoric acid and sulfuric acid. Further, the specific steps of ion exchange strengthening the formed glass include placing the formed glass in molten salt and maintaining it at a temperature of 350 ~ 500 ℃ for 2 ~ 4 hours

further, before the step of selecting a number of glass substrates, it also includes: providing a glass substrate; The glass original sheet is thinned to obtain a glass substrate. Further, the specific steps of the thinning process are as follows: cleaning the original glass sheet, then placing it into an etching tank for etching treatment with an etchant, then cleaning, and finally drying; The etching agent comprises the following components according to weight percentage: 35-40% hydrofluoric acid, 15-20% glacial acetic acid, 2-10% phosphoric acid, 0.5-1% polydimethylsiloxane, 0.2-0.8% diethylenetriamine pentaacetic acid, and the rest is pure water. Further, the thickness of the glass substrate is 0.03 to 0.06mm. Further, the adhesive layer is one of UV glue, water-soluble ink, paraffin, rosin, strippable glue and asphalt. Further, the thickness of the adhesive layer is 0.1 to 0.2mm. Further, the overall thickness of the workpiece to be machined is 0.8 ~ 1mm

in the invention, the glass substrate is laminated and a bonding manual man-made wood universal testing machine is set between the two adjacent glass substrates. Features: the agent layer forms a block of laminated glass, thereby increasing the overall thickness of the glass. The existing processing equipment can be used for shape processing without additional large equipment investment, so the operation is simple and the cost is low; The bulk laminated glass body is not easy to break in the shape processing, which improves the yield of ultra-thin flexible glass on the production line

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