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Method for toughening alkali-free aluminoborosilicate ultrathin substrate glass

An aluminoborosilicate and substrate technology, which is applied in glass tempering, glass production, glass manufacturing equipment, etc., can solve the problems of no reports on the glass strengthening of aluminoborosilicate ultra-thin substrates, and achieve a good surface condition of the glass, High impact strength and uniform stress distribution

Active Publication Date: 2014-12-17
北京远大信达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report on the strengthening of alkali-free aluminoborosilicate ultra-thin substrate glass

Method used

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  • Method for toughening alkali-free aluminoborosilicate ultrathin substrate glass
  • Method for toughening alkali-free aluminoborosilicate ultrathin substrate glass
  • Method for toughening alkali-free aluminoborosilicate ultrathin substrate glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033]Example 1: First, the annealed substrate glass is cut and edged, cleaned and dried according to the requirements, and then placed on the sample holder for use; then, the cleaned and dried substrate glass sample holder is pushed into the heated Put it in an electric furnace at 700°C and keep it warm for 10 minutes; then, quickly drop the substrate glass into the strengthening liquid at 150°C (prepared according to the formula ratio of Example 1 in Table 1), and take it out when the strengthening liquid cools below 50°C. Substrate glass; finally, thoroughly wash away impurities such as silicone oil on the surface of the substrate glass, and dry to obtain strengthened glass. The impact resistance of the sample was measured by the GB9963-88 impact resistance test. The weight of the falling ball was 5.6 grams. The impact resistance of the sample was measured to be 0.8 m, and it was not broken after three impacts. The light transmittance curve of the sample tested by a spectro...

Embodiment 2

[0035] Example 2: First, cut, grind, clean and dry the annealed substrate glass according to the requirements, and put it on the sample holder for use; then, push the cleaned and dried substrate glass sample holder into the The temperature has been raised to 730°C in an electric furnace, and the temperature is kept for 15 minutes; then, the substrate glass is quickly dropped into the 160°C strengthening liquid (prepared according to the formula ratio of Example 2 in Table 1), and when the strengthening liquid is cooled to below 50°C , take out the substrate glass; finally, thoroughly wash off impurities such as silicone oil on the surface of the substrate glass, and dry to obtain strengthened glass. The impact resistance of the sample was measured by the GB9963-88 impact resistance test. The weight of the falling ball was 5.6 grams, and the impact resistance of the sample was measured to be 0.82 m, and it was not broken after three impacts. The light transmittance curve of the...

Embodiment 3

[0037] Embodiment 3, at first, according to the requirements, the substrate glass after annealing is cut, edging, cleaned and dried, and put into the sample holder for use; then, the substrate glass sample holder that has been cleaned and dried is pushed into the Raise the temperature to an electric furnace at 740°C and keep it warm for 30 minutes; then, quickly drop the substrate glass into the strengthening liquid at 350°C (prepared according to the formula ratio of Example 3 in Table 1), and when the strengthening liquid cools below 50°C, Take out the substrate glass; finally, thoroughly wash away impurities such as silicone oil on the surface of the substrate glass, and dry to obtain strengthened glass. The impact resistance of the sample was measured by the GB9963-88 impact resistance test. The weight of the falling ball was 5.6 grams. The impact resistance of the sample was measured to be 0.9 m, and it was not broken after three impacts.

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Abstract

The invention discloses a method for toughening alkali-free aluminoborosilicate ultrathin substrate glass. The method is used to toughen the substrate glass after the annealing technology, and is characterized by comprising the following steps: step A, cutting the annealed substrate glass according to the design requirements, polishing the edges of the cut substrate glass, washing, drying, and placing the substrate glass on a sample rack for later use; step B, pushing the substrate glass on the sample rack into an electric oven with a temperature of 700 to 750 DEG C, and maintaining the temperature for 3 to 30 minutes; step C, soaking the substrate glass into a methyl silicone oil toughening liquid with a temperature of 50 to 350 DEG C, and taking out the substrate glass when the temperature of the toughening liquid falls to 50 DEG C or less; step D, washing the substrate glass surface, and finally drying so as to obtain the toughened glass. Methyl silicone oil is taken as the toughening liquid and the cooling liquid, no other additive is added, the preparation technology is simple, and the toughened glass prepared by the provided toughening method has the advantages of high strength, low cost, and high qualified rate.

Description

technical field [0001] The invention relates to a glass strengthening method, in particular to a strengthening preparation method of an ultra-thin substrate glass, in particular to a strengthening method of an alkali-free aluminoborosilicate ultra-thin substrate glass. Background technique [0002] Ultra-thin glass is relative to the thickness of ordinary flat glass. Generally, it is thin glass with a thickness of less than 3 mm, and it is called ultra-thin glass with a thickness of less than 1.5 mm. However, ultra-thinness also brings obvious disadvantages, that is, the reduction of mechanical strength. While reducing weight and reducing volume, impurities, defects, and any negative factors that reduce the strength of the glass will be magnified. For example: a small crack or defect is only an insignificant flaw on the surface for glass of ordinary thickness. Compared with ultra-thin glass, a crack of the same size may have penetrated into the glass, causing a non-negligib...

Claims

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Application Information

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IPC IPC(8): C03B27/02
CPCY02P40/57
Inventor 田鹏闫冬成李俊锋张广涛
Owner 北京远大信达科技有限公司
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