Grouting forming device and method for ITO rotating target

A technology of grouting molding and rotating target, which is applied in the direction of unloading device, ceramic molding machine, auxiliary molding equipment, etc. It can solve the problems of unstable target quality, uneven green body density, affecting product quality, etc., and achieve consistency Good, high yield, small footprint effect

Inactive Publication Date: 2019-12-31
河北惟新科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved in the present invention is to provide a grouting molding device and method for an ITO rotary target, so as to solve the high production cost of producing an ITO rotary target by cold isostatic pressing, easy to cause unstable target quality, and The existing rotary target forming mold is not easy to demould, and the density of the molded green body is not uniform, which affects the quality of the product, so as to reduce the production cost and ensure the uniformity and stability of the produced ITO rotary target, which is beneficial to demoulding and improves the quality of the product. Quality of products

Method used

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  • Grouting forming device and method for ITO rotating target
  • Grouting forming device and method for ITO rotating target

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Prepare ITO slurry, ITO powder prepared by chemical coprecipitation method, add dispersant PEG and binder PVA in deionized water, the amount of dispersant PEG is 1.0% of the mass fraction of the powder, and the amount of binder PVA The mass fraction of the powder is 1.5%, adding ammonia water to adjust the pH value to 10.3, adding the defoamer n-octanol, mixing evenly, pouring into the ITO powder, and then ball milling for 24 hours. The actual solid content of the slurry is 84.5%, and the viscosity is 26.8mpa.s.

[0068] The size of the inner mold is 156mm×400mm. The inner mold, outer mold, sealing end cap and pushing mechanism of the mold are assembled and connected to the rotating mechanism. Open the feed valve on the slurry delivery pipeline and quickly inject 10.9kg of slurry. Time 16s, close the feed valve. Turn on the inverter of the rotating mechanism, adjust the speed to 1800r / min, take 26s, keep the speed to rotate steadily for 10 minutes, gradually reduce the...

Embodiment 2

[0070] Prepare ITO slurry, ITO powder prepared by chemical coprecipitation method, add dispersant PEG and binder PVA in deionized water, the amount of dispersant PEG is 1.2% of the mass fraction of the powder, and the amount of binder PVA The mass fraction of the powder is 1.8%, adding ammonia water to adjust the pH value to 10.5, adding the defoamer n-octanol, mixing evenly, pouring into the ITO powder, and then ball milling for 24 hours. The actual solid content of the slurry is 83.8%, and the viscosity is 28.2mpa.s.

[0071] The size of the inner mold is 212mm×400mm. The inner mold, outer mold, sealing end cap and pushing mechanism of the mold are assembled and connected to the rotating mechanism. Open the feed valve on the slurry delivery pipeline and quickly inject 20.8kg of slurry. Time 23s, close the feed valve. Turn on the frequency converter of the rotating mechanism, adjust the speed to 1500r / min, take 24s, keep the speed to rotate steadily for 10 minutes, gradually...

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Abstract

The invention discloses a grouting forming device and method for an ITO rotating target. The grouting forming device for the ITO rotating target comprises an outer mold horizontally connected to a rotating mechanism and internally provided with a columnar cavity, wherein the left end of the outer mold is an open end communicating with the columnar cavity, and the left end of the outer mold is provided with a sealing end cover and a pulped material conveying pipeline arranged on the sealing end cover; the columnar cavity of the outer mold is internally provided with an inner mold and a materialpushing mechanism, wherein drainage capillary holes are distributed in the upper part of the inner mold and the material pushing mechanism is partially arranged inside the columnar cavity and partially and movably penetrates through the outer mold; and the inner wall of the inner mold and the sealing end cover and the material pushing mechanism form a forming mold cavity. The device has the advantages that the investment is low, the occupied space is small, the centrifugal force and the mold chemical capillary action are adopted, no large pressure gradient is generated, the uniformity and theconsistency of a plain blank are good, the internal stress is small, cracking is not prone to occur, the forming uniformity of the plain blank is guaranteed, demolding is facilitated, and the qualityof the product is improved.

Description

technical field [0001] The invention relates to the technical field of indium tin oxide targets, in particular to a grouting molding device and method for an ITO rotary target. Background technique [0002] ITO (indium tin oxide), has excellent electrical and optical properties, the resistivity can reach 10-4Ω cm, the visible light transmittance is as high as 85% to 90%, the ultraviolet light absorption rate is above 85%, and the reflectivity of infrared light More than 80%, and the film layer has high strength and good processability, so it is widely used in the flat panel display (FPD) industry, such as liquid crystal display (LCD), high touch screen (Touch Panel), plasma tube display (PDP) and other products, There are also industries such as solar cells and functional glass. ITO targets are already extremely important electronic functional materials for the information industry in today's knowledge economy era, so the demand for ITO targets is increasing day by day. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B1/26B28B17/02B28B13/06
CPCB28B1/26B28B1/261B28B13/065B28B17/026
Inventor 王玉军王雪涛杨建新刘洪福冯捆柱宋蕊立
Owner 河北惟新科技有限公司
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