lining plate should be able to bear certain impact load; for the high stress attrition, the lining plate surface should be of high hardness to resist the grinding material’s pressure and decrease the surface tendering and dropping off phenomenon.

  1) The chemical components are Chrome, Silicon, Manganese, Molybdenum, Nickel, Niobium, Titanium, Boron, rare earth and such alloy elements. Drop the carbon greatly to lower than 120. Decrease the 20%-30% high carbon of high chromium cast iron to lower than 10% medium-low carbon which reduce its fragility and avoid the danger of fracture. The robust chemical elements are added appropriately which make it the ZM type ball mill lining plate of high toughness and high wear resistance.

  2) The technology for heating processing of the ball mill lining plate: the compound heating processing method is adopted such as annealing, quenching, and double tempering.

  3) The temper hardening of the ball mill lining plate: in the process of the little energy punch, the work hardening is generated and the hardness is raised by HRc5-10, that is to say the more you use, the harder it will be and the higher its wear resistance will be which equals to the performance of the high manganese steel.