Eleven samples of coal used in power industry had been selected to carry out parallel test according to DL/T465 standard《Test method for erosion and abrasion of coal》

at the same time

samples of coal used in power industry with different abrasive behaviors being selected for carrying out parallel comparison test on the newly constructed abrasion test system.Results of tests show that the reproducibility is bad in the case of abrasive index test of coal according to the method stipulated in DL/T465 standard

while the coal samples tested on the newly constructed abrasion test system all have better stability and reproducibility.There is a better relationship between the erosion-abrasion rate E and the erosion-abrasion index Ke in general

Ke is increase along with the increase of E.