The determination of abrasive pulverization rate is determined according to the different proportions of powdering of different particle sizes under different temperature conditions, so the same particle size can only be compared at the same temperature and the same firing time, different particle sizes The temperature required by the abrasive is different, so there is no comparison.
The specific detection method of abrasive pulverization rate in the detection of brown corundum is as follows:
1. Take 200 grams of sample and dry it in a drying oven at 105 degrees for one hour, take it out and place it at room temperature for later use;
2. Put 200 grams of sample on the Put in the corresponding inspection sieve (P sand shall be carried out according to the netting standard of GB/T9258.2-2008, F sand shall be carried out according to the netting method of GB/T2481.1-1998), sieve for 10 minutes, and take out the basic grains into the sieve 3. Accurately weigh 100 grams of the screened material and place it
in a high-temperature container;
4. Adjust the high-temperature furnace to For the required temperature (700°C-900°C), put the material into the high-temperature furnace, and burn it for 1 hour;
5. Take out the burnt material and put it at room temperature
for later use; 6. Check the burnt material with The sieve was sieved according to the standard for 5 minutes, and the quantity of the material in the basic grain net was weighed.
7. Data processing: In the formula: m1 is the number of materials on the sieve of the first experiment of the parallel sample; m2 is the number of materials on the sieve of the second experiment of the parallel sample; M1 is the sieve of the first experiment of the parallel sample after firing The amount of material on the sieve; M2 is the amount of material on the sieve of the second experiment of the parallel sample after firing.