What is the meaning of coal m40.m10
Index of coke:The breaking strength of coke refers to the ability of coke to resist the impact of external shocks and not crack or defect along the structure, with M40 value;The abrasion resistance of coke is the ability of coke to resist the external friction force and not to produce the surface glass to form the debris or powder.
The strength of coke is usually represented by two indices of crushing strength and abrasion resistance. Coke crushing strength refers to coke can resist foreign impact force without ability along cracks or defects at the broken, represented by the M40 value; wear strength of coke coke refers to the ability to resist external friction without surface of glass forming debris or powder, said M10. The cracking degree of coke affects the M40 value of its breaking strength, and the pore structure of coke affects the M10 value. There are many methods for determination of M40 and M10 value method, commonly used in our country the German migon drum test.
After the completion of the test, the sieve with the pore diameter of 40mm and 10mm sieving, the percentage of M10 particles larger than 40mm is M40, less than the percentage of 10mm particle size.
