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TFT touch screen grinding rod and preparation method thereof

A grinding rod, touch screen technology, applied in other manufacturing equipment/tools, engine components, turbines, etc., can solve problems such as screen edge grinding and light leakage, and achieve high quality, cost-effective, strong holding power, and stable performance.

Active Publication Date: 2020-04-21
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. The preparation method comprises the steps that copper powder, tin powder, cobalt powder, silver powder and cerium powder are mixed and then subjected to ball milling, a metal matrix is obtained, the metal matrix is mixed with diamond, and a material is obtained; and cold pressing is performed on the materialto obtain a green body, and hot pressing sintering is performed on the green body to obtain the TFT touch screen grinding rod. The TFT touch screen grinding rod prepared by the method has the characteristics of strong holding force, high exposure degree, long service life and the like, the grinding requirement of the TFT touch screen can be met and the speed can be increased from conventional 250mm / min to 350 mm / min, the working efficiency is improved by 140% and the batch use quality is stable without the sparking phenomenon. The preparation method is simple, wide in raw material source andsuitable 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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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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