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Production process of silicon carbide micropowder

A silicon carbide micropowder and production process technology, applied in chemical instruments and methods, solid separation, wet separation, etc., can solve the problems of silicon carbide screening and drying troubles, batch production limitations, etc., to achieve manpower saving, good practicality Sexuality and the effect of saving resources

Inactive Publication Date: 2017-06-27
郑州睿科生化科技有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

The screening and drying of existing silicon carbide is cumbersome, and it is more limited in mass production

Method used

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  • Production process of silicon carbide micropowder

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Experimental program
Comparison scheme
Effect test

Embodiment

[0042] 1. Sorting of silicon carbide

[0043] Take the silicon carbide solid, grind the silicon carbide solid into powder with a grinder, set the speed of the grinder to 650r / min when pulverizing, and then use the hydraulic classification conical cylinder to sort the silicon carbide powder, because Under the effect of hydraulic power, ultra-fine silicon carbide will float on the upper layer of water, collect the floating silicon carbide liquid on the upper layer, and then use a 100-mesh filter to filter the silicon carbide powder to obtain semi-solid silicon carbide powder. At the same time, continue to sort the filtered liquid according to the S1 step;

[0044] 2. Dilute the semi-solid silicon carbide powder

[0045] Add distilled water diluent to the semi-solid silicon carbide powder in the mother liquor tank, the concentration of dilution is 10%, put the semi-solid silicon carbide powder into the mother liquor tank with agitator, start the agitator, the speed of the agitat...

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Abstract

The invention discloses a production process of silicon carbide micropowder, comprising the following steps: S1 sorting silicon carbide, S2 diluting semi-solid silicon carbide powder, S3 atomizing silicon carbide powder liquid, and S4 silicon carbide powder Drying, S5 to make finished silicon carbide powder, the vibration frequency of the ultrasonic vibrating screen is 50HZ, and the collector is a glass container. The silicon carbide is sorted by a hydraulic grading conical cylinder, which has a fast screening speed and can quickly separate the ultrafine silicon carbide. The atomization duration of the silicon carbide micropowder production process is 5 seconds, and the drying The time is 10 seconds. Since the silicon carbide is atomized, the contact area between the silicon carbide and the hot air increases to enhance the drying efficiency of the silicon carbide. The invention is suitable for batch screening and drying of silicon carbide, has good practicability and is suitable for further popularization.

Description

technical field [0001] The invention relates to the technical field of silicon carbide, in particular to a production process of silicon carbide micropowder. Background technique [0002] Due to its stable chemical properties, high thermal conductivity, small thermal expansion coefficient, and good wear resistance, silicon carbide has many other uses besides being used as an abrasive. The inner wall can improve its wear resistance and prolong the service life by 1 to 2 times; the high-grade refractory material used to make it is heat-shock resistant, small in size, light in weight and high in strength, and has a good energy-saving effect. Low-grade silicon carbide (containing about 85% SiC) is an excellent deoxidizer, which can speed up steelmaking and facilitate the control of chemical composition to improve the quality of steel. In addition, silicon carbide is also widely used to make silicon carbide rods for electric heating elements. The industrial method of silicon ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00
CPCB03B7/00
Inventor 张忠帆
Owner 郑州睿科生化科技有限公司
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