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Your location: Home > Related Articles > A method of quickly crushing and grinding brown corundum in the laboratory

A method of quickly crushing and grinding brown corundum in the laboratory

Author:QINSUN Released in:2023-04 Click:155

Brown corundum, also known as corundum, consists mainly of aluminum oxide. It is the basic abrasive used in industry. It has good grinding performance, wide application range and low price. To take full advantage of this abrasive, brown corundum abrasives with different particle sizes are required, which requires grinding, especially fine grinding.

How to grind brown corundum? Dongfang Tianjing TJGN planetary high energy ball mill uses a planetary ball mill. When the main wheel rotates, the tank seat where the ball mill pot is located rotates in the opposite direction, and the grinding balls in the pot Give the sample material strong friction and extrusion to realize the fine grinding of brown fused alumina. Let\'s see the grinding plan report of Dongfang Tianjing about brown fused alumina.

Grinding chart of brown corundum

Pre-grind sample shape:

Grinding Tool : TJGN-450 Planetary High Energy Ball Mill

Customized Grinding Set: 4 500ml Agate Ball Mill Jars, Standard 3mm, 5mm, 8mm Agate Grinding Balls

Grinding Method: Dry ball mill method

Meal: 10 minutes

Process and result: Brown corundum is a hard and brittle material and cannot become contaminated during the grinding process. The TJGN-450 planetary high energy ball mill and agate grinding set are used for ball milling. The tank moves at high speed and high centrifugal force. The agate grinding balls in the tank provide strong extrusion, friction and impact on the brown corundum sample. After 10 minutes, the median diameter D50 of the sample is 25.47 μm; if the meal is 20 minutes, it is estimated that the median diameter D50 of the sample may be less than 10 μm.

The shape of the sample after grinding:

Particle size analysis report of the sample after grinding:

*This report is an experiment. The results only account for the test samples provided