Scratches and cutting grooves in the metal plastic deformation occurs in the sides and front piled high strain rate plastic deformation has occurred so that the internal dislocation pile of metal to form cell-like structure, the nature of hard and brittle, and then after repeated rolling produce strain fatigue crack, hard and brittle nature, and then after repeated rolling, producing strain fatigue crack extended to the surface, resulting in debris shedding, fatigue wear, impact stress balls in repeated changes of contact stress and shear stress Under the action, subject to repeated impact, squeeze and slide between each other, in the alternating pressure and shear stress, causing alternating Hertz contact stress at the surface of the material to produce maximum alternating shear stress, touching the edge a peak tensile stress, resulting in sub-surface brittle phases, inclusions or voids at the fatigue crack, crack propagation and intertwined, and finally to the ball and wear skin peeling, if cracks in the deeper parts, and along the brittle phase and defect to internal expansion, the formation of large crack depth, crack will extend to the surface of the merger, it will make the ball fall off the surface of a block of ceramic ball, the ball surface fatigue wear, brittle wear mine in the wet ball mill slag used in ball mill liners wear medium (of the electrolyte solution) and the wear conditions act on the material surface mill, corrosion and wear, wet grinding grinding media consumption over dry 5 to 7 times the rate of consumption of loss corrosive material mill system much higher than the corrosion and wear alone because of material consumption and the loss rate of corrosion damage to the mechanical properties of the material surface, so that the material is accelerated wear, wear constantly produce "new" material surface, but also improves the corrosion rate. These are analyzed Dahua Machinery Co., Ltd. for the ball in the form of wear mechanisms of failure, to improve the life of the ball, the material should have high hardness, high impact fatigue strength, high fracture toughness and impact toughness and some other column mechanical properties, on the other hand, slag mill parameters also affect the wear and fatigue life of the steel ball. After the recycling of steel slag also handle relatively backward state, compared with other developed countries, China's steel slag recycling rate is only about 10% of the mill equipment, the national "Twelfth Five-Year Plan" development strategy put forward to improve the utilization of slag rate gradually being put on the agenda, some companies began to use steel slag mill ball mill slag processing, benefits of doing so is to bring all steel slag effective use, and without any waste, to solve the existing slag treatment due The problem a lot of farmland and land occupation, but also for society brought great social and economic benefits. At present, China's steel production capacity ranks first in the world, a large production of self-evident, however, as in the steelmaking process will emit large amounts of slag, and slag is an industrial solid waste, if it can not be effective and reasonable use, would be a huge waste of energy, China will freshman year 84 million tons of steel slag, steel slag can be used in many areas because of the potential hydraulic, high yield and low cost to become the first choice for the production of cement mixed materials, also can be used for mixing asphalt pavement aggregate material layer. Ball mill, ball mill, Dingxi City, Dahua machinery provided by Gongyi City Dahua Machinery Limited. Gongyi City Dahua Machinery Co., Ltd. (www.dhqmj.com/) strong, credible, in Zhengzhou, Henan's industry-specific equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Dahua machinery and you hand into the brilliant, for a better future!