What Is The Weight Of One Grinding Media Ball Standard

Release time：2021-10-12

The technology is accurate  

1 scope  

This standard specifies the technical index of ball mill grinding body group procurement, the statistical accounting method of grinding body loss, and management requirements.  

2 Normative reference documents  

The provisions of the following documents are incorporated into this international standard by reference.  JC/T533-2004 building materials industry standard "building materials industry chromium alloy casting grinding ball".  

3 Terms and definitions  

The following terms and definitions apply to this standard 3.1 ball consumption  

During the statistical period (annual), the grinding mass consumed by the grinding system to produce each ton of material (raw material, pulverized coal or raw material) is expressed by M, and the unit is g /t material (raw material, pulverized coal and cement).  

3.2 breakage  

The percentage of the mass of broken cast balls in the sum of the mass of loaded balls and supplementary balls in the statistical period.  3.3 Diameter Deviation  

The difference between the mean of the maximum and minimum diameters measured on the same cast ball and the base diameter (nominal specification).  

3.4 High (low) chromium cast ball (segment)  

High chromium casting ball (segment): casting ball (segment) with chromium content greater than eleven percent and eutectic carbide lattice type mainly (Cr, Fe) 7C3.  

Low chromium casting ball (section): chromium content is less than 3%, the lattice type of eutectic carbide is mainly (Fe, Cr);  C casting balls (segments).  

3.5 Impact toughness  

Resistance of material to impact load, code AK, unit: joule/cm?  (J/cm3).  3.6 Impact fatigue  

Fatigue fracture of machine parts under repeated impact load, generally N>105 impact times, can be considered as impact fatigue.  The impact fatigue resistance of grinding ball is generally expressed by the cycle N of thrust under a certain impact energy.  

3.7 loss of roundness  

Ratio of grinding ball diameter deviation to basic diameter.