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Grinding wheel applied to liquid crystal glass chamfering and manufacturing method thereof

A technology of liquid crystal glass and grinding wheel, which is applied in the field of ultra-precision processing of substrate substrates, can solve the problems of large chipping, product scrapping, fragmentation, etc., and achieve the effect of reducing strength and good holding force

Active Publication Date: 2018-02-27
ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And it is easy to break during processing, especially when processing its corners, it is prone to chipping and fragmentation, so that the entire product is scrapped
Low product yield, low efficiency, large processing chipping, and surface scratches are common problems faced by the liquid crystal glass chamfering processing industry at present.

Method used

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  • Grinding wheel applied to liquid crystal glass chamfering and manufacturing method thereof
  • Grinding wheel applied to liquid crystal glass chamfering and manufacturing method thereof
  • Grinding wheel applied to liquid crystal glass chamfering and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] A preparation method for a grinding wheel applied to liquid crystal glass chamfering, comprising the steps of:

[0038] (1) Coarse grinding layer binder configuration: the binder consists of 10wt% Sn-Cu alloy powder (Sn and Cu mass ratio 34.5︰65.5), and 80wt% Ag-Ni alloy powder (Ag and Ni mass ratio is 37︰63), composed of 10wt% paraffin. Weigh the raw materials of the binder in proportion, mix them evenly, and weigh the 80-mesh diamond and the mixed binder according to the mass ratio of diamond and binder of 1:5. Mix the mixture of diamond and binder with absolute ethanol at a mass ratio of 1:8, stir for 30 minutes at a stirring speed of 1200rpm / min, and finally dry it in an oven at 90°C for 4 hours and pass through a 140-mesh sieve Get the mix.

[0039] (2) Put the mixed material in step (1) into a graphite mold of the corresponding size, and press it into a coarse grinding layer under a pressure of 2MPa after holding at 45°C for 30 minutes, at 200°C for 20 minutes, at...

Embodiment 2

[0044] A preparation method for a grinding wheel applied to liquid crystal glass chamfering, comprising the steps of:

[0045] (1) Coarse grinding layer binder configuration: the binder consists of 30wt% Sn-Cu alloy powder (the mass ratio of Sn and Cu is 42:58), and 60wt% Ag-Ni alloy powder (the mass ratio of Ag and Ni 22:78), 10wt% paraffin composition. Weigh the raw materials of the binder in proportion, mix them well, and then weigh the 120 mesh diamond and the mixed binder according to the mass ratio of diamond and binder of 1:10. Put the diamond and bonding agent into the mixture of diamond and bonding agent and absolute ethanol according to the mass ratio of 1:9, stir for 50 minutes, the stirring speed is 1200rpm / min, and finally put it in an oven at 120°C Dry for 2 hours, and sieve 140 mesh to obtain the mixture.

[0046] (2) Put the mixture in step (1) into a graphite mold of the corresponding size, and under a pressure of 10MPa, hold it at 45°C for 30 minutes, at 20...

Embodiment 3

[0051] A preparation method for a grinding wheel applied to liquid crystal glass chamfering, comprising the steps of:

[0052] (1) Coarse grinding layer binder configuration: the binder consists of 15wt% Sn-Cu alloy powder (the mass ratio of Sn and Cu is 33:67), and 60wt% Ag-Ni alloy powder (the mass ratio of Ag-Ni 20:80), 25wt% paraffin composition. Weigh the raw materials of the binder in proportion, mix them well, and then weigh the diamond and the mixed binder according to the mass ratio of 140 mesh diamond and binder 1:8. Put the diamond and the binder into absolute ethanol, stir for 40 minutes at a stirring speed of 1200rpm / min, and finally place it in an oven at 100°C for 3 hours to dry, and sieve through a 120-mesh sieve to obtain the mixture.

[0053] (2) Put the mixture into a graphite mold of corresponding size, under the pressure of 6MPa, hold at 45°C for 30 minutes, at 200°C for 20 minutes, at 400°C for 15 minutes, at 650°C for 20 minutes, and press it into a coa...

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Abstract

The invention discloses a grinding wheel applied to liquid crystal glass chamfering and a manufacturing method thereof, and belongs to the technical field of substrate ultra-precise machining. The grinding wheel applied to liquid crystal glass chamfering comprises a grinding wheel base body and a grinding wheel grinding layer. The grinding wheel base body can be processed from stainless steel, hard alloy, aviation aluminum and the like according to certain shape dimension. The grinding wheel grinding layer is divided into two parts, wherein one part is a coarse grinding layer and the other part is a fine grinding layer. The coarse grinding layer is used for removing chamfering margin, is sharp, is high in processing efficiency, and can achieve the processing dimension which meets the requirements; and the fine grinding layer is used for removing and polishing coarsely grinded grains and cracks after the coarse grinding layer works, so that the purposes of being free of cracks and freeof macroscopic grains are achieved.

Description

technical field [0001] The invention belongs to the field of ultra-precision processing of substrates, and in particular relates to a grinding wheel applied to liquid crystal glass chamfering and a preparation method thereof. Background technique [0002] Liquid crystal glass is a high-tech optoelectronic glass product made of liquid crystal film through high temperature and high pressure, interlayer packaging. Users can control the arrangement of liquid crystal molecules through the current energization or not, so as to control the transparent and opaque state of the glass. ultimate purpose. The liquid crystal film in the middle layer is used as the functional material of the dimming glass. The application principle is: the liquid crystal molecules are arranged in a straight line when the power is on, and the liquid crystal glass is light-transmitting and transparent; when the power is off, the liquid crystal molecules are in a scattering state, and the liquid crystal film...

Claims

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Application Information

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IPC IPC(8): B24D3/06B24D3/28B24D3/34B24D7/14B24D18/00
CPCB24D3/06B24D3/28B24D3/342B24D3/344B24D7/14B24D18/0009
Inventor 叶腾飞
Owner ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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