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Method for testing shrinkage rate of electronic flat glass

A technology of flat glass and testing methods, applied in the direction of measuring devices, instruments, optical devices, etc., can solve problems affecting the quality of electronic products, poor control, etc., and achieve the effects of improving annealing quality, high measurement accuracy, and simple operation

Inactive Publication Date: 2014-12-24
AVIC (HAINAN) SPECIAL GLASS MATERIALS CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Electronic display flat glass must strictly control the shrinkage rate of the glass, if the control is not good, it will seriously affect the quality of electronic products

Method used

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  • Method for testing shrinkage rate of electronic flat glass
  • Method for testing shrinkage rate of electronic flat glass
  • Method for testing shrinkage rate of electronic flat glass

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Embodiment Construction

[0018] The present invention is described in conjunction with accompanying drawing and specific embodiment:

[0019] like figure 1 , figure 2 Shown, a kind of test method of shrinkage of electronic flat glass, described test method comprises the steps:

[0020] 1) Take a sample of electronic flat glass to be tested. In this embodiment, the size of the sample to be tested is 150*90mm; use a marker pen with a thickness of 0.3mm to draw and measure at the two ends of the sample to be tested at a distance of 1mm from the edge. Reference line e and measurement reference line f; then divide the sample to be measured into three pieces A, B, and C along the width direction, of which sample A and sample C are reference pieces, and sample B is a measurement piece; measure the surface of sample B with a vernier caliper Measure the distance between the reference line e and the measurement reference line f, in order to avoid the test error caused by the inclination of the measurement re...

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Abstract

The invention mainly relates to a method for testing the shrinkage rate of electronic flat glass. The method comprises the following steps: drawing measurement reference lines e and f at the two ends of a sample to be tested of the electronic flat glass in the length direction; averagely dividing the sample to be tested into reference samples A and C and a measurement sample B in the width direction; measuring the distance between the measurement reference line e and the measurement reference line f on the sample B, performing reheating-cooling treatment on the sample B through a precision annealing furnace, measuring the displacement of the measurement reference lines of the sample B under an optical microscope, and calculating the shrinkage rates X1 and X2 of the middle upper edge and the middle lower edge of the sample B and the average shrinkage rate X of the sample B. According to the method, the measurement sample is subjected to reheating-cooling treatment through the precision annealing furnace, so that the annealing quality of the glass is improved; the shrinkage rate of the glass is calculated by measuring the length change of the glass sample before and after treatment in the precision annealing furnace through the optical microscope; the method has the characteristics of simplicity for operation and high measurement accuracy.

Description

technical field [0001] The invention belongs to the technical field of glass performance testing, and mainly relates to a method for testing the shrinkage rate of reheating-cooling glass in the manufacturing process of electronic flat glass. Background technique [0002] Flat-panel displays have many advantages: thin and light, the whole machine can be made portable; low voltage, no X-ray radiation, no flickering and jittering, no static electricity, so it will not hinder health; low power consumption, battery-powered; life expectancy ratio long wait. Therefore flat panel display all has extremely extensive purposes in military affairs, civilian field. The substrate and cover of the flat panel display mainly use electronic flat glass, so the electronic flat glass, as one of the main materials of the flat panel display, has been greatly developed. [0003] Glass is heated more than once during processing, after which it is roughly annealed to prevent damage to the glass dur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/16G01B11/02G01B11/16
Inventor 姜宏赵会峰冯秀劳张振华李长久鲁鹏有学军苏俊俞琳
Owner AVIC (HAINAN) SPECIAL GLASS MATERIALS CO LTD
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