Low chrome cast grinding bars

Chemical composition Low Chrome Casting Bars C Si Mn Cr Mo S P 2.5-3.5 1.0-1.7 0.3-0.7 0.3-1.0 0-0.3 ≤0.12 ≤0.012 Cu Ni V Ti Zr Np 0-0.2 0-0.2 0-0.2 0-0.2 0-0.2 0-0.2 Specification Low Chrome Casting Bars Φ8×8-10 Φ10×10-12 Φ12×12-14 Φ14×14-16 Φ16×16-18 Φ18×18-20 Φ20×20-25 Φ25×30 Φ30×35 Φ35×40 Mechanical Performence Name Metallurgical strcture Impact Value(Unnotched) HRC Low Chrome Casting Bars P+C ≥1.5 45-50 M-Martensite P-Pearlite C-Carbide Process Description 1, the unique chemical elements Professional R & D team can work for different operating conditions and user needs, grinding the material specified formula. The chemical composition can well ensure the combination of hardness and toughness. 2, furnace process Intermediate frequency electric furnace melting, high temperature mat technology, very good to make hot metal impurities are effectively excluded; while smelting process, with magnetic stirring function, therefore, a good solution to the problem cupola material segregation 3, temperature control process Temperature heat treatment process is a very important part of work, different temperature and time, the reaction is very sensitive to the quality of the product, so we research and practice based on long-term, summed up a complete set of temperature control technology standards. 4, laser cooling process And iron in hot metal mold temperature difference between the 1500 °C, chilling, so keep carbide radial arrangement of crystals refined and organized, compact, in which the carbide abrasive impact due to load again the matrix, evolving hard layer, the hardness and toughness to a reasonable cross-point, so that the "East-kun" brand cast ball to achieve good wear resistance. 5, heat treatment Heat treatment to enhance and ensure the quality of the product is very important to a process the company developed the domestic first-class Kaida quenching equipment, a variety of products using different methods in dealing with the temperature, time and other technical parameters of best fit for quenching.