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Processing method for ultrathin plain glass based on consolidated abrasive

A technology of consolidating abrasives and glass, which is applied to machine tools, metal processing equipment, chemical instruments and methods suitable for grinding workpiece planes, etc. It can solve problems such as difficult control of parallelism, uneven thickness, variability, etc., and achieve operational Low difficulty, uniform thickness, easy to clean

Inactive Publication Date: 2011-09-07
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a large-area ultra-thin glass based on consolidated abrasives to solve the problems of fragility, variability, uneven thickness, difficult control of parallelism and only small-area ultra-thin glass in the current ultra-thin glass processing. The processing method of thin flat glass achieves the purpose of uniform thinning of glass, and at the same time obtains an ultra-smooth surface with good flatness and small surface damage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: A method for processing ultra-thin flat glass based on consolidated abrasives, which includes the following steps: 1) W28 is used for rough polishing (that is, the diamond particle size is between 20 and 28 microns, not greater than 28 microns, the same below) The diamond-fixed abrasive polishing pad, the preparation method and ingredients of the diamond-fixed abrasive polishing pad can be realized by the method and formula of patent No. 2008100227414 and 2008102440960 (the same below), and the polishing temperature is controlled at 25 o C, the polishing pressure is controlled at 800g / cm 2 , the pH value of the polishing solution is 8, the flow rate is 300ml / min, the polishing speed is 150r / min, and the double-sided polishing of the glass is removed to 0.2~0.3mm. 2) W10 (that is, the diamond particle size is between 5 and 10 microns, not greater than 10 microns, the same below) diamond-bonded abrasive polishing pad is used for fine polishing, and the polis...

Embodiment 2

[0025] Embodiment 2: a kind of processing method based on the ultra-thin plane glass of fixed abrasive, it comprises the following steps: 1) rough polishing adopts the diamond fixed abrasive polishing pad of W28, and polishing temperature is controlled at 30 o C, the polishing pressure is controlled at 800g / cm 2 , the pH value of the polishing solution is 10, the flow rate is 300ml / min, the polishing speed is 200r / min, and the double-sided polishing of the glass is removed to 0.2~0.3mm. 2) W10 diamond bonded abrasive polishing pad is used for fine polishing, and the polishing temperature is controlled at 30 oC , the polishing pressure is controlled at 300g / cm 2 , the polishing liquid adjusts the PH value to 9, the flow rate is 300ml / min, the polishing speed is 100r / min, and the glass is polished to 0.15mm on both sides, and the surface accuracy meets the requirements.

Embodiment 3

[0026] Embodiment 3: a kind of processing method based on the ultra-thin flat glass of fixed abrasive, it comprises the following steps: 1) rough polishing adopts the diamond fixed abrasive polishing pad of W28, and polishing temperature is controlled at 35 o C, the polishing pressure is controlled at 800g / cm 2 , the pH value of the polishing solution is 11, the flow rate is 300ml / min, the polishing speed is 150r / min, and the double-sided polishing of the glass is removed to 0.2~0.3mm. 2) W10 diamond bonded abrasive polishing pad is used for fine polishing, and the polishing temperature is controlled at 35 oC , the polishing pressure is controlled at 300g / cm 2 , the polishing liquid adjusts the PH value to 11, the flow rate is 300ml / min, the polishing speed is 150r / min, and the glass is polished to 0.15mm on both sides, and the surface accuracy meets the requirements.

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Abstract

The invention discloses a processing method for ultrathin plain glass based on consolidated abrasive, which is characterized by comprising the following steps: firstly, taking ground plain glass of which the thickness is less than or equal to 0.5mm as a raw material; secondly, adopting a polishing pad of diamond consolidated abrasive of which the granularity is less than or equal to 28 micrometers, controlling the polishing temperature to 20-40oC, polishing pressure of 100-1000g / cm<2>, pH value of a polishing solution of 8-11, flow velocity of 100-500ml / min and polishing rotation speed of 10-500r / min to obtain a middle glass product of which the thickness is 0.2-0.3mm; thirdly, polishing the polishing pad of diamond consolidated abrasive of which the granularity is less than or equal to 10 micrometers, controlling the polishing temperature to 20-40oC, polishing pressure of 100-500g / cm<2>, pH value of a polishing solution of 8-11, flow velocity of 100-500ml / min and polishing rotation speed of 10-300r / min; and putting the middle glass product onto a polisher to polish to obtain ultrathin glass of which the thickness is less than or equal to 0.15mm. The processing method has the advantages of simple process, no pollution, high efficiency and low cost, and size material with a larger length or width and thickness ratio can be processed.

Description

technical field [0001] The invention relates to a processing method for ultra-thin materials, in particular to a processing method for ultra-thin glass with a thickness not exceeding 0.15 mm, in particular to a processing method for ultra-thin flat glass based on consolidated abrasives. Background technique [0002] At present, ultra-thin flat glass is relative to ordinary flat glass, and it can be called ultra-thin glass with a thickness between 0.1 and 1.5mm. Ultra-thin glass has the advantages of extremely thin thickness, high light transmittance, and good photoelectric performance. It is an emerging high-tech, high-value-added high-quality glass. Ultra-thin glass substrates and ultra-thin flat glass are widely used, involving various fields such as industry and technology, such as substrate glass for various flat panel display devices in the electronic information industry, clock masking glass, instrument and automotive instrument glass, and industrial image holographic ...

Claims

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Application Information

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IPC IPC(8): B24B7/24B24B1/00C09G1/18
Inventor 李军朱永伟左敦稳张彦李标高平孙玉利
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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