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TFT touch screen grinding rod and preparation method thereof

A grinding rod and touch screen technology, applied in the field of grinding rods, can solve problems such as screen edge grinding and light leakage

Active Publication Date: 2021-07-06
苏州赛尔科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention discloses a TFT touch screen grinding rod and a preparation method thereof. The grinding rod manufactured according to the invention has been successfully introduced to customers and helped them solve the problem of screen edge grinding and light leakage. The service life exceeds existing products, and the price is only 5% 80%, with high quality and cost performance

Method used

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  • TFT touch screen grinding rod and preparation method thereof
  • TFT touch screen grinding rod and preparation method thereof
  • TFT touch screen grinding rod and preparation method thereof

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Effect test

preparation example Construction

[0026] The preparation method of the TFT touch screen grinding rod disclosed by the present invention is as follows:

[0027] (1) Mix the metal powders and then ball mill to obtain the metal matrix; the metal powders are composed of copper powder, tin powder, cobalt powder, silver powder and cerium powder;

[0028] (2) Mix the metal matrix and diamond to obtain the material;

[0029] (3) Cold pressing the material to obtain the green body;

[0030] (4) The green body is hot-pressed and sintered to obtain a TFT touch screen grinding rod.

Embodiment

[0032] Mixing: According to the formula requirements of the mass percentage ratio in Table 1, add the metal powder into the ball mill, add alcohol with a total mass of 30% of the metal powder, and then put in zirconium balls, the ball-to-material ratio is 2:1 (wt%), and the speed is 400 rpm Minutes, mixed and ball milled for 20 minutes, the material was taken out and dried, then put into a V-type mixer, added acetone with 10% of the total mass of metal powder, and then added diamond with 20% of the total mass of metal powder, mixed for 120 minutes, baked After drying, pass through a 120# sieve (120 microns) to obtain a uniformly mixed material;

[0033] Pressing: the above materials are added to the existing mold and placed on a hydraulic press, and a pressure of 3 tons / cm is applied 2 , keep the pressure for 10 seconds; then reverse the mold up and down, and apply a pressure of 3 tons / cm 2 , hold the pressure for 10 seconds, thereby making a cold-pressed green body with unif...

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Abstract

The invention discloses a TFT touch screen grinding rod and a preparation method thereof. Copper powder, tin powder, cobalt powder, silver powder and cerium powder are mixed and then ball-milled to obtain a metal carcass, and the metal carcass is mixed with diamond to obtain a material; cold pressing The material is obtained into a green body, and the green body is hot-pressed and sintered to obtain a TFT touch screen grinding rod. The TFT touch screen grinding rod prepared by the present invention has the characteristics of strong holding force, high cutting edge and long service life, and can meet the grinding requirements of TFT touch screen. The improvement is 140%, the quality is stable when used in batches, and no sparking phenomenon occurs; the preparation method disclosed by the invention is simple, the source of raw materials is wide, and it is suitable for modern industrial production.

Description

technical field [0001] The invention belongs to the grinding rod technology, and in particular relates to a TFT touch screen grinding rod and a preparation method thereof. Background technique [0002] The grinding rods used for the beveling of touch screen glass are mostly made by metal sintering and electroplating. Due to the higher and higher requirements for processing speed, feed rate and quality, the grinding rods made by electroplating are gradually replaced by metal sintering. The grinding rods produced by the metal sintering method of various manufacturers mostly use copper-cobalt-tin or copper-iron-tin, which can meet the needs of some low-end products, but for high-end customers, the requirements for mobile phone screens or computer screens will be much higher. The screen has internal stress, which will cause light leakage on the screen. Contents of the invention [0003] The invention discloses a TFT touch screen grinding rod and a preparation method thereof. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/05C22C26/00C22C30/02C22C30/04B22F5/00B22F3/16
CPCB22F3/16B22F5/00B22F2005/001C22C1/05C22C26/00C22C30/02C22C30/04
Inventor 李威张莹莹王思宇冉隆光
Owner 苏州赛尔科技有限公司
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